[{"author":[{"orcid":"0000-0002-3121-3100","first_name":"Sadashige","last_name":"Ishida","full_name":"Ishida, Sadashige","id":"6F7C4B96-A8E9-11E9-A7CA-09ECE5697425"},{"id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87","full_name":"Wojtan, Christopher J","last_name":"Wojtan","first_name":"Christopher J","orcid":"0000-0001-6646-5546"},{"last_name":"Chern","first_name":"Albert","full_name":"Chern, Albert"}],"volume":41,"issue":"6","related_material":{"record":[{"relation":"dissertation_contains","status":"public","id":"20551"}]},"month":"12","year":"2022","file_date_updated":"2023-01-30T07:15:48Z","publication_status":"published","language":[{"iso":"eng"}],"article_type":"original","citation":{"apa":"Ishida, S., Wojtan, C., &#38; Chern, A. (2022). Hidden degrees of freedom in implicit vortex filaments. <i>ACM Transactions on Graphics</i>. Association for Computing Machinery. <a href=\"https://doi.org/10.1145/3550454.3555459\">https://doi.org/10.1145/3550454.3555459</a>","ieee":"S. Ishida, C. Wojtan, and A. Chern, “Hidden degrees of freedom in implicit vortex filaments,” <i>ACM Transactions on Graphics</i>, vol. 41, no. 6. Association for Computing Machinery, 2022.","ista":"Ishida S, Wojtan C, Chern A. 2022. Hidden degrees of freedom in implicit vortex filaments. ACM Transactions on Graphics. 41(6), 241.","ama":"Ishida S, Wojtan C, Chern A. Hidden degrees of freedom in implicit vortex filaments. <i>ACM Transactions on Graphics</i>. 2022;41(6). doi:<a href=\"https://doi.org/10.1145/3550454.3555459\">10.1145/3550454.3555459</a>","mla":"Ishida, Sadashige, et al. “Hidden Degrees of Freedom in Implicit Vortex Filaments.” <i>ACM Transactions on Graphics</i>, vol. 41, no. 6, 241, Association for Computing Machinery, 2022, doi:<a href=\"https://doi.org/10.1145/3550454.3555459\">10.1145/3550454.3555459</a>.","short":"S. Ishida, C. Wojtan, A. Chern, ACM Transactions on Graphics 41 (2022).","chicago":"Ishida, Sadashige, Chris Wojtan, and Albert Chern. “Hidden Degrees of Freedom in Implicit Vortex Filaments.” <i>ACM Transactions on Graphics</i>. Association for Computing Machinery, 2022. <a href=\"https://doi.org/10.1145/3550454.3555459\">https://doi.org/10.1145/3550454.3555459</a>."},"type":"journal_article","oa_version":"Published Version","date_created":"2023-01-29T23:00:59Z","publication":"ACM Transactions on Graphics","scopus_import":"1","has_accepted_license":"1","status":"public","external_id":{"isi":["000891651900061"]},"abstract":[{"lang":"eng","text":"This paper presents a new representation of curve dynamics, with applications to vortex filaments in fluid dynamics. Instead of representing these filaments with explicit curve geometry and Lagrangian equations of motion, we represent curves implicitly with a new co-dimensional 2 level set description. Our implicit representation admits several redundant mathematical degrees of freedom in both the configuration and the dynamics of the curves, which can be tailored specifically to improve numerical robustness, in contrast to naive approaches for implicit curve dynamics that suffer from overwhelming numerical stability problems. Furthermore, we note how these hidden degrees of freedom perfectly map to a Clebsch representation in fluid dynamics. Motivated by these observations, we introduce untwisted level set functions and non-swirling dynamics which successfully regularize sources of numerical instability, particularly in the twisting modes around curve filaments. A consequence is a novel simulation method which produces stable dynamics for large numbers of interacting vortex filaments and effortlessly handles topological changes and re-connection events."}],"project":[{"name":"Computational Discovery of Numerical Algorithms for Animation and Simulation of Natural Phenomena","_id":"34bc2376-11ca-11ed-8bc3-9a3b3961a088","grant_number":"101045083"}],"intvolume":"        41","ddc":["000"],"date_updated":"2026-04-07T12:02:23Z","article_processing_charge":"No","tmp":{"short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"publication_identifier":{"eissn":["1557-7368"],"issn":["0730-0301"]},"day":"01","department":[{"_id":"ChWo"}],"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","title":"Hidden degrees of freedom in implicit vortex filaments","oa":1,"_id":"12431","date_published":"2022-12-01T00:00:00Z","quality_controlled":"1","article_number":"241","isi":1,"acknowledgement":"We thank the visual computing group at IST Austria for their valuable discussions and feedback. Houdini Education licenses were provided by SideFX software. This project was funded in part by the European Research Council (ERC Consolidator Grant 101045083 CoDiNA).","doi":"10.1145/3550454.3555459","file":[{"success":1,"checksum":"a2fba257fdefe0e747182be6c0f7c70c","file_id":"12433","file_name":"2022_ACM_Ishida.pdf","date_updated":"2023-01-30T07:15:48Z","file_size":15551202,"content_type":"application/pdf","date_created":"2023-01-30T07:15:48Z","creator":"dernst","relation":"main_file","access_level":"open_access"}],"publisher":"Association for Computing Machinery"},{"tmp":{"legal_code_url":"https://opensource.org/licenses/MIT","short":"MIT","name":"The MIT License"},"gitlab_commit_id":"6a77e7e22769230ae5f5edaa090fb4b828e57573","author":[{"last_name":"Sperl","first_name":"Georg","id":"4DD40360-F248-11E8-B48F-1D18A9856A87","full_name":"Sperl, Georg"},{"full_name":"Narain, Rahul","last_name":"Narain","first_name":"Rahul"},{"first_name":"Christopher J","orcid":"0000-0001-6646-5546","last_name":"Wojtan","id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87","full_name":"Wojtan, Christopher J"}],"month":"05","department":[{"_id":"GradSch"},{"_id":"ChWo"}],"related_material":{"record":[{"status":"public","id":"9818","relation":"used_for_analysis_in"}]},"title":"Mechanics-Aware Deformation of Yarn Pattern Geometry (Additional Animation/Model Data)","file_date_updated":"2021-04-26T09:33:44Z","oa":1,"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","license":"https://opensource.org/licenses/MIT","year":"2021","citation":{"mla":"Sperl, Georg, et al. <i>Mechanics-Aware Deformation of Yarn Pattern Geometry (Additional Animation/Model Data)</i>. IST Austria, 2021, doi:<a href=\"https://doi.org/10.15479/AT:ISTA:9327\">10.15479/AT:ISTA:9327</a>.","short":"G. Sperl, R. Narain, C. Wojtan, (2021).","apa":"Sperl, G., Narain, R., &#38; Wojtan, C. (2021). Mechanics-Aware Deformation of Yarn Pattern Geometry (Additional Animation/Model Data). IST Austria. <a href=\"https://doi.org/10.15479/AT:ISTA:9327\">https://doi.org/10.15479/AT:ISTA:9327</a>","ista":"Sperl G, Narain R, Wojtan C. 2021. Mechanics-Aware Deformation of Yarn Pattern Geometry (Additional Animation/Model Data), IST Austria, <a href=\"https://doi.org/10.15479/AT:ISTA:9327\">10.15479/AT:ISTA:9327</a>.","ieee":"G. Sperl, R. Narain, and C. Wojtan, “Mechanics-Aware Deformation of Yarn Pattern Geometry (Additional Animation/Model Data).” IST Austria, 2021.","ama":"Sperl G, Narain R, Wojtan C. Mechanics-Aware Deformation of Yarn Pattern Geometry (Additional Animation/Model Data). 2021. doi:<a href=\"https://doi.org/10.15479/AT:ISTA:9327\">10.15479/AT:ISTA:9327</a>","chicago":"Sperl, Georg, Rahul Narain, and Chris Wojtan. “Mechanics-Aware Deformation of Yarn Pattern Geometry (Additional Animation/Model Data).” IST Austria, 2021. <a href=\"https://doi.org/10.15479/AT:ISTA:9327\">https://doi.org/10.15479/AT:ISTA:9327</a>."},"_id":"9327","date_published":"2021-05-01T00:00:00Z","has_accepted_license":"1","status":"public","abstract":[{"lang":"eng","text":"This archive contains the missing sweater mesh animations and displacement models for the code of \"Mechanics-Aware Deformation of Yarn Pattern Geometry\"\r\n\r\nCode Repository: https://git.ist.ac.at/gsperl/MADYPG"}],"type":"software","date_created":"2021-04-16T14:26:19Z","publisher":"IST Austria","gitlab_url":"https://git.ist.ac.at/gsperl/MADYPG","doi":"10.15479/AT:ISTA:9327","file":[{"file_size":802586232,"file_name":"MADYPG_extra_data.zip","file_id":"9328","date_updated":"2021-04-16T14:15:12Z","success":1,"checksum":"0324cb519273371708743f3282e7c081","access_level":"open_access","creator":"gsperl","relation":"main_file","content_type":"application/zip","date_created":"2021-04-16T14:15:12Z"},{"content_type":"application/gzip","date_created":"2021-04-26T09:33:44Z","access_level":"open_access","creator":"pub-gitlab-bot","relation":"main_file","file_id":"9353","file_name":"MADYPG.zip","date_updated":"2021-04-26T09:33:44Z","checksum":"4c224551adf852b136ec21a4e13f0c1b","file_size":64962865}],"ddc":["005"],"date_updated":"2026-06-18T19:57:47Z"},{"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","oa":1,"title":"Mechanics-aware deformation of yarn pattern geometry","day":"01","department":[{"_id":"GradSch"},{"_id":"ChWo"}],"article_processing_charge":"Yes (in subscription journal)","publication_identifier":{"eissn":["1557-7368"],"issn":["0730-0301"]},"isi":1,"doi":"10.1145/3450626.3459816","acknowledgement":"We wish to thank the anonymous reviewers and the members of the Visual Computing Group at IST Austria for their valuable feedback. We also thank Seddi Labs for providing the garment model with fold-over seams.\r\nThis research was supported by the Scientific Service Units (SSU) of IST Austria through resources provided by Scientific\r\nComputing. This project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 638176. Rahul Narain is supported by a Pankaj Gupta Young Faculty Fellowship and a gift from Adobe Inc.","publisher":"Association for Computing Machinery","quality_controlled":"1","_id":"9818","date_published":"2021-08-01T00:00:00Z","article_number":"168","year":"2021","publication_status":"published","related_material":{"link":[{"url":"https://ist.ac.at/en/news/knitting-virtual-yarn/","description":"News on IST Webpage","relation":"press_release"}],"record":[{"relation":"software","id":"9327","status":"public"},{"relation":"dissertation_contains","status":"public","id":"12358"}]},"issue":"4","volume":40,"month":"08","acknowledged_ssus":[{"_id":"ScienComp"}],"author":[{"id":"4DD40360-F248-11E8-B48F-1D18A9856A87","full_name":"Sperl, Georg","last_name":"Sperl","first_name":"Georg"},{"last_name":"Narain","first_name":"Rahul","full_name":"Narain, Rahul"},{"id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87","full_name":"Wojtan, Christopher J","last_name":"Wojtan","first_name":"Christopher J","orcid":"0000-0001-6646-5546"}],"intvolume":"        40","date_updated":"2026-06-18T19:57:47Z","ddc":["000"],"project":[{"grant_number":"638176","call_identifier":"H2020","_id":"2533E772-B435-11E9-9278-68D0E5697425","name":"Big Splash: Efficient Simulation of Natural Phenomena at Extremely Large Scales"}],"scopus_import":"1","oa_version":"Published Version","date_created":"2021-08-08T22:01:27Z","publication":"ACM Transactions on Graphics","type":"journal_article","main_file_link":[{"url":"https://doi.org/10.1145/3450626.3459816","open_access":"1"}],"abstract":[{"text":"Triangle mesh-based simulations are able to produce satisfying animations of knitted and woven cloth; however, they lack the rich geometric detail of yarn-level simulations. Naive texturing approaches do not consider yarn-level physics, while full yarn-level simulations may become prohibitively expensive for large garments. We propose a method to animate yarn-level cloth geometry on top of an underlying deforming mesh in a mechanics-aware fashion. Using triangle strains to interpolate precomputed yarn geometry, we are able to reproduce effects such as knit loops tightening under stretching. In combination with precomputed mesh animation or real-time mesh simulation, our method is able to animate yarn-level cloth in real-time at large scales.","lang":"eng"}],"external_id":{"isi":["000674930900132"]},"status":"public","article_type":"original","citation":{"chicago":"Sperl, Georg, Rahul Narain, and Chris Wojtan. “Mechanics-Aware Deformation of Yarn Pattern Geometry.” <i>ACM Transactions on Graphics</i>. Association for Computing Machinery, 2021. <a href=\"https://doi.org/10.1145/3450626.3459816\">https://doi.org/10.1145/3450626.3459816</a>.","apa":"Sperl, G., Narain, R., &#38; Wojtan, C. (2021). Mechanics-aware deformation of yarn pattern geometry. <i>ACM Transactions on Graphics</i>. Association for Computing Machinery. <a href=\"https://doi.org/10.1145/3450626.3459816\">https://doi.org/10.1145/3450626.3459816</a>","ista":"Sperl G, Narain R, Wojtan C. 2021. Mechanics-aware deformation of yarn pattern geometry. ACM Transactions on Graphics. 40(4), 168.","ieee":"G. Sperl, R. Narain, and C. Wojtan, “Mechanics-aware deformation of yarn pattern geometry,” <i>ACM Transactions on Graphics</i>, vol. 40, no. 4. Association for Computing Machinery, 2021.","ama":"Sperl G, Narain R, Wojtan C. Mechanics-aware deformation of yarn pattern geometry. <i>ACM Transactions on Graphics</i>. 2021;40(4). doi:<a href=\"https://doi.org/10.1145/3450626.3459816\">10.1145/3450626.3459816</a>","mla":"Sperl, Georg, et al. “Mechanics-Aware Deformation of Yarn Pattern Geometry.” <i>ACM Transactions on Graphics</i>, vol. 40, no. 4, 168, Association for Computing Machinery, 2021, doi:<a href=\"https://doi.org/10.1145/3450626.3459816\">10.1145/3450626.3459816</a>.","short":"G. Sperl, R. Narain, C. Wojtan, ACM Transactions on Graphics 40 (2021)."},"ec_funded":1,"language":[{"iso":"eng"}]},{"publication_status":"published","file_date_updated":"2020-10-08T08:34:53Z","year":"2020","month":"06","issue":"6","volume":26,"acknowledged_ssus":[{"_id":"ScienComp"}],"author":[{"full_name":"Hikaru, Ibayashi","first_name":"Ibayashi","last_name":"Hikaru"},{"last_name":"Wojtan","first_name":"Christopher J","orcid":"0000-0001-6646-5546","id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87","full_name":"Wojtan, Christopher J"},{"full_name":"Thuerey, Nils","first_name":"Nils","last_name":"Thuerey"},{"first_name":"Takeo","last_name":"Igarashi","full_name":"Igarashi, Takeo"},{"first_name":"Ryoichi","last_name":"Ando","full_name":"Ando, Ryoichi"}],"page":"2288-2302","pmid":1,"date_updated":"2025-07-10T11:52:55Z","ddc":["006"],"intvolume":"        26","abstract":[{"lang":"eng","text":"We introduce dynamically warping grids for adaptive liquid simulation. Our primary contributions are a strategy for dynamically deforming regular grids over the course of a simulation and a method for efficiently utilizing these deforming grids for liquid simulation. Prior work has shown that unstructured grids are very effective for adaptive fluid simulations. However, unstructured grids often lead to complicated implementations and a poor cache hit rate due to inconsistent memory access. Regular grids, on the other hand, provide a fast, fixed memory access pattern and straightforward implementation. Our method combines the advantages of both: we leverage the simplicity of regular grids while still achieving practical and controllable spatial adaptivity. We demonstrate that our method enables adaptive simulations that are fast, flexible, and robust to null-space issues. At the same time, our method is simple to implement and takes advantage of existing highly-tuned algorithms."}],"has_accepted_license":"1","status":"public","external_id":{"pmid":["30507534"],"isi":["000532295600014"]},"date_created":"2018-12-16T22:59:21Z","oa_version":"Submitted Version","scopus_import":"1","publication":"IEEE Transactions on Visualization and Computer Graphics","type":"journal_article","citation":{"chicago":"Hikaru, Ibayashi, Chris Wojtan, Nils Thuerey, Takeo Igarashi, and Ryoichi Ando. “Simulating Liquids on Dynamically Warping Grids.” <i>IEEE Transactions on Visualization and Computer Graphics</i>. IEEE, 2020. <a href=\"https://doi.org/10.1109/TVCG.2018.2883628\">https://doi.org/10.1109/TVCG.2018.2883628</a>.","short":"I. Hikaru, C. Wojtan, N. Thuerey, T. Igarashi, R. Ando, IEEE Transactions on Visualization and Computer Graphics 26 (2020) 2288–2302.","mla":"Hikaru, Ibayashi, et al. “Simulating Liquids on Dynamically Warping Grids.” <i>IEEE Transactions on Visualization and Computer Graphics</i>, vol. 26, no. 6, IEEE, 2020, pp. 2288–302, doi:<a href=\"https://doi.org/10.1109/TVCG.2018.2883628\">10.1109/TVCG.2018.2883628</a>.","ieee":"I. Hikaru, C. Wojtan, N. Thuerey, T. Igarashi, and R. Ando, “Simulating liquids on dynamically warping grids,” <i>IEEE Transactions on Visualization and Computer Graphics</i>, vol. 26, no. 6. IEEE, pp. 2288–2302, 2020.","ama":"Hikaru I, Wojtan C, Thuerey N, Igarashi T, Ando R. Simulating liquids on dynamically warping grids. <i>IEEE Transactions on Visualization and Computer Graphics</i>. 2020;26(6):2288-2302. doi:<a href=\"https://doi.org/10.1109/TVCG.2018.2883628\">10.1109/TVCG.2018.2883628</a>","ista":"Hikaru I, Wojtan C, Thuerey N, Igarashi T, Ando R. 2020. Simulating liquids on dynamically warping grids. IEEE Transactions on Visualization and Computer Graphics. 26(6), 2288–2302.","apa":"Hikaru, I., Wojtan, C., Thuerey, N., Igarashi, T., &#38; Ando, R. (2020). Simulating liquids on dynamically warping grids. <i>IEEE Transactions on Visualization and Computer Graphics</i>. IEEE. <a href=\"https://doi.org/10.1109/TVCG.2018.2883628\">https://doi.org/10.1109/TVCG.2018.2883628</a>"},"article_type":"original","language":[{"iso":"eng"}],"oa":1,"title":"Simulating liquids on dynamically warping grids","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","department":[{"_id":"ChWo"}],"day":"01","publication_identifier":{"eissn":["1941-0506"],"issn":["1077-2626"]},"article_processing_charge":"No","publisher":"IEEE","doi":"10.1109/TVCG.2018.2883628","file":[{"access_level":"open_access","relation":"main_file","creator":"wojtan","content_type":"application/pdf","date_created":"2020-10-08T08:34:53Z","file_size":21910098,"date_updated":"2020-10-08T08:34:53Z","file_id":"8626","file_name":"preprint.pdf","success":1,"checksum":"8d4c55443a0ee335bb5bb652de503042"}],"acknowledgement":"This work was partially supported by JSPS Grant-in-Aid forYoung Scientists (Start-up) 16H07410, the ERC StartingGrantsrealFlow(StG-2015-637014) andBigSplash(StG-2014-638176). This research was supported by the Scientific Ser-vice Units (SSU) of IST Austria through resources providedby Scientific Computing. We would like to express my grati-tude to Nobuyuki Umetani and Tomas Skrivan for insight-ful discussion.","isi":1,"date_published":"2020-06-01T00:00:00Z","_id":"5681","quality_controlled":"1"},{"language":[{"iso":"eng"}],"article_type":"original","ec_funded":1,"citation":{"chicago":"Ishida, Sadashige, Peter Synak, Fumiya Narita, Toshiya Hachisuka, and Chris Wojtan. “A Model for Soap Film Dynamics with Evolving Thickness.” <i>ACM Transactions on Graphics</i>. Association for Computing Machinery, 2020. <a href=\"https://doi.org/10.1145/3386569.3392405\">https://doi.org/10.1145/3386569.3392405</a>.","ista":"Ishida S, Synak P, Narita F, Hachisuka T, Wojtan C. 2020. A model for soap film dynamics with evolving thickness. ACM Transactions on Graphics. 39(4), 31.","ama":"Ishida S, Synak P, Narita F, Hachisuka T, Wojtan C. A model for soap film dynamics with evolving thickness. <i>ACM Transactions on Graphics</i>. 2020;39(4). doi:<a href=\"https://doi.org/10.1145/3386569.3392405\">10.1145/3386569.3392405</a>","ieee":"S. Ishida, P. Synak, F. Narita, T. Hachisuka, and C. Wojtan, “A model for soap film dynamics with evolving thickness,” <i>ACM Transactions on Graphics</i>, vol. 39, no. 4. Association for Computing Machinery, 2020.","apa":"Ishida, S., Synak, P., Narita, F., Hachisuka, T., &#38; Wojtan, C. (2020). A model for soap film dynamics with evolving thickness. <i>ACM Transactions on Graphics</i>. Association for Computing Machinery. <a href=\"https://doi.org/10.1145/3386569.3392405\">https://doi.org/10.1145/3386569.3392405</a>","short":"S. Ishida, P. Synak, F. Narita, T. Hachisuka, C. Wojtan, ACM Transactions on Graphics 39 (2020).","mla":"Ishida, Sadashige, et al. “A Model for Soap Film Dynamics with Evolving Thickness.” <i>ACM Transactions on Graphics</i>, vol. 39, no. 4, 31, Association for Computing Machinery, 2020, doi:<a href=\"https://doi.org/10.1145/3386569.3392405\">10.1145/3386569.3392405</a>."},"type":"journal_article","main_file_link":[{"url":"https://doi.org/10.1145/3386569.3392405","open_access":"1"}],"publication":"ACM Transactions on Graphics","date_created":"2020-09-13T22:01:18Z","scopus_import":"1","oa_version":"Submitted Version","has_accepted_license":"1","status":"public","external_id":{"isi":["000583700300004"]},"abstract":[{"text":"Previous research on animations of soap bubbles, films, and foams largely focuses on the motion and geometric shape of the bubble surface. These works neglect the evolution of the bubble’s thickness, which is normally responsible for visual phenomena like surface vortices, Newton’s interference patterns, capillary waves, and deformation-dependent rupturing of films in a foam. In this paper, we model these natural phenomena by introducing the film thickness as a reduced degree of freedom in the Navier-Stokes equations and deriving their equations of motion. We discretize the equations on a nonmanifold triangle mesh surface and couple it to an existing bubble solver. In doing so, we also introduce an incompressible fluid solver for 2.5D films and a novel advection algorithm for convecting fields across non-manifold surface junctions. Our simulations enhance state-of-the-art bubble solvers with additional effects caused by convection, rippling, draining, and evaporation of the thin film.","lang":"eng"}],"project":[{"call_identifier":"H2020","name":"Big Splash: Efficient Simulation of Natural Phenomena at Extremely Large Scales","_id":"2533E772-B435-11E9-9278-68D0E5697425","grant_number":"638176"}],"intvolume":"        39","ddc":["000"],"date_updated":"2026-04-16T08:29:36Z","author":[{"last_name":"Ishida","first_name":"Sadashige","orcid":"0000-0002-3121-3100","id":"6F7C4B96-A8E9-11E9-A7CA-09ECE5697425","full_name":"Ishida, Sadashige"},{"id":"331776E2-F248-11E8-B48F-1D18A9856A87","full_name":"Synak, Peter","last_name":"Synak","first_name":"Peter"},{"full_name":"Narita, Fumiya","first_name":"Fumiya","last_name":"Narita"},{"full_name":"Hachisuka, Toshiya","last_name":"Hachisuka","first_name":"Toshiya"},{"orcid":"0000-0001-6646-5546","first_name":"Christopher J","last_name":"Wojtan","full_name":"Wojtan, Christopher J","id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87"}],"acknowledged_ssus":[{"_id":"ScienComp"}],"volume":39,"issue":"4","related_material":{"record":[{"id":"19630","status":"public","relation":"dissertation_contains"}]},"month":"07","year":"2020","file_date_updated":"2020-11-23T09:03:19Z","publication_status":"published","_id":"8384","date_published":"2020-07-08T00:00:00Z","quality_controlled":"1","article_number":"31","acknowledgement":"We wish to thank the anonymous reviewers and the members of the Visual Computing Group at IST Austria for their valuable feedback, especially Camille Schreck for her help in rendering. This research was supported by the Scientific Service Units (SSU) of IST Austria through resources provided by Scientific Computing. We would like to thank the authors of [Belcour and Barla 2017] for providing their implementation, the authors of [Atkins and Elliott 2010] and [Seychelles et al. 2008] for allowing us to use their results, and Rok Grah for helpful discussions. Finally, we thank Ryoichi Ando for many discussions from the beginning of the project that resulted in important contents of the paper including our formulation, numerical scheme, and initial implementation. This project has received funding from the\r\nEuropean Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 638176.","doi":"10.1145/3386569.3392405","file":[{"checksum":"813831ca91319d794d9748c276b24578","success":1,"date_updated":"2020-11-23T09:03:19Z","file_id":"8795","file_name":"2020_soapfilm_submitted.pdf","file_size":14935529,"date_created":"2020-11-23T09:03:19Z","content_type":"application/pdf","relation":"main_file","creator":"dernst","access_level":"open_access"}],"isi":1,"publisher":"Association for Computing Machinery","article_processing_charge":"No","publication_identifier":{"issn":["0730-0301"],"eissn":["1557-7368"]},"day":"08","department":[{"_id":"ChWo"}],"user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","title":"A model for soap film dynamics with evolving thickness","oa":1},{"publisher":"Association for Computing Machinery","isi":1,"file":[{"success":1,"checksum":"cf4c1d361c3196c4bd424520a5588205","date_updated":"2020-11-23T09:01:22Z","file_name":"2020_hylc_submitted.pdf","file_id":"8794","file_size":38922662,"date_created":"2020-11-23T09:01:22Z","content_type":"application/pdf","relation":"main_file","creator":"dernst","access_level":"open_access"}],"acknowledgement":"We wish to thank the anonymous reviewers and the members of the Visual Computing Group at IST Austria for their valuable feedback. We also thank the creators of the Berkeley Garment Library [de Joya et al. 2012] for providing garment meshes, [Krishnamurthy and Levoy 1996] and [Turk and Levoy 1994] for the armadillo and bunny meshes, the creators of libWetCloth [Fei et al. 2018] for their implementation of discrete elastic rod forces, and Tomáš Skřivan for\r\ninspiring discussions and help with Mathematica code generation. This research was supported by the Scientific Service Units (SSU) of IST Austria through resources provided by Scientific Computing. This project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 638176. Rahul Narain is supported by a Pankaj Gupta Young Faculty Fellowship and a gift from Adobe Inc.","doi":"10.1145/3386569.3392412","article_number":"48","_id":"8385","date_published":"2020-07-08T00:00:00Z","quality_controlled":"1","title":"Homogenized yarn-level cloth","oa":1,"user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","department":[{"_id":"ChWo"}],"day":"08","publication_identifier":{"issn":["0730-0301"],"eissn":["1557-7368"]},"article_processing_charge":"No","ddc":["000"],"date_updated":"2026-04-16T08:31:55Z","intvolume":"        39","project":[{"grant_number":"638176","call_identifier":"H2020","name":"Big Splash: Efficient Simulation of Natural Phenomena at Extremely Large Scales","_id":"2533E772-B435-11E9-9278-68D0E5697425"}],"status":"public","external_id":{"isi":["000583700300021"]},"has_accepted_license":"1","abstract":[{"lang":"eng","text":"We present a method for animating yarn-level cloth effects using a thin-shell solver. We accomplish this through numerical homogenization: we first use a large number of yarn-level simulations to build a model of the potential energy density of the cloth, and then use this energy density function to compute forces in a thin shell simulator. We model several yarn-based materials, including both woven and knitted fabrics. Our model faithfully reproduces expected effects like the stiffness of woven fabrics, and the highly deformable nature and anisotropy of knitted fabrics. Our approach does not require any real-world experiments nor measurements; because the method is based entirely on simulations, it can generate entirely new material models quickly, without the need for testing apparatuses or human intervention. We provide data-driven models of several woven and knitted fabrics, which can be used for efficient simulation with an off-the-shelf cloth solver."}],"type":"journal_article","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1145/3386569.3392412"}],"corr_author":"1","oa_version":"Submitted Version","date_created":"2020-09-13T22:01:18Z","publication":"ACM Transactions on Graphics","scopus_import":"1","language":[{"iso":"eng"}],"ec_funded":1,"article_type":"original","citation":{"apa":"Sperl, G., Narain, R., &#38; Wojtan, C. (2020). Homogenized yarn-level cloth. <i>ACM Transactions on Graphics</i>. Association for Computing Machinery. <a href=\"https://doi.org/10.1145/3386569.3392412\">https://doi.org/10.1145/3386569.3392412</a>","ista":"Sperl G, Narain R, Wojtan C. 2020. Homogenized yarn-level cloth. ACM Transactions on Graphics. 39(4), 48.","ama":"Sperl G, Narain R, Wojtan C. Homogenized yarn-level cloth. <i>ACM Transactions on Graphics</i>. 2020;39(4). doi:<a href=\"https://doi.org/10.1145/3386569.3392412\">10.1145/3386569.3392412</a>","ieee":"G. Sperl, R. Narain, and C. Wojtan, “Homogenized yarn-level cloth,” <i>ACM Transactions on Graphics</i>, vol. 39, no. 4. Association for Computing Machinery, 2020.","mla":"Sperl, Georg, et al. “Homogenized Yarn-Level Cloth.” <i>ACM Transactions on Graphics</i>, vol. 39, no. 4, 48, Association for Computing Machinery, 2020, doi:<a href=\"https://doi.org/10.1145/3386569.3392412\">10.1145/3386569.3392412</a>.","short":"G. Sperl, R. Narain, C. Wojtan, ACM Transactions on Graphics 39 (2020).","chicago":"Sperl, Georg, Rahul Narain, and Chris Wojtan. “Homogenized Yarn-Level Cloth.” <i>ACM Transactions on Graphics</i>. Association for Computing Machinery, 2020. <a href=\"https://doi.org/10.1145/3386569.3392412\">https://doi.org/10.1145/3386569.3392412</a>."},"file_date_updated":"2020-11-23T09:01:22Z","publication_status":"published","year":"2020","month":"07","volume":39,"related_material":{"record":[{"relation":"dissertation_contains","id":"12358","status":"public"}]},"issue":"4","author":[{"last_name":"Sperl","first_name":"Georg","full_name":"Sperl, Georg","id":"4DD40360-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Rahul","last_name":"Narain","full_name":"Narain, Rahul"},{"last_name":"Wojtan","first_name":"Christopher J","orcid":"0000-0001-6646-5546","id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87","full_name":"Wojtan, Christopher J"}],"acknowledged_ssus":[{"_id":"ScienComp"}]},{"acknowledged_ssus":[{"_id":"ScienComp"}],"author":[{"full_name":"Skrivan, Tomas","id":"486A5A46-F248-11E8-B48F-1D18A9856A87","last_name":"Skrivan","first_name":"Tomas"},{"full_name":"Soderstrom, Andreas","first_name":"Andreas","last_name":"Soderstrom"},{"full_name":"Johansson, John","first_name":"John","last_name":"Johansson"},{"full_name":"Sprenger, Christoph","first_name":"Christoph","last_name":"Sprenger"},{"first_name":"Ken","last_name":"Museth","full_name":"Museth, Ken"},{"last_name":"Wojtan","first_name":"Christopher J","orcid":"0000-0001-6646-5546","id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87","full_name":"Wojtan, Christopher J"}],"month":"07","issue":"4","volume":39,"publication_status":"published","file_date_updated":"2020-09-21T07:51:44Z","year":"2020","citation":{"chicago":"Skrivan, Tomas, Andreas Soderstrom, John Johansson, Christoph Sprenger, Ken Museth, and Chris Wojtan. “Wave Curves: Simulating Lagrangian Water Waves on Dynamically Deforming Surfaces.” <i>ACM Transactions on Graphics</i>. Association for Computing Machinery, 2020. <a href=\"https://doi.org/10.1145/3386569.3392466\">https://doi.org/10.1145/3386569.3392466</a>.","mla":"Skrivan, Tomas, et al. “Wave Curves: Simulating Lagrangian Water Waves on Dynamically Deforming Surfaces.” <i>ACM Transactions on Graphics</i>, vol. 39, no. 4, 65, Association for Computing Machinery, 2020, doi:<a href=\"https://doi.org/10.1145/3386569.3392466\">10.1145/3386569.3392466</a>.","short":"T. Skrivan, A. Soderstrom, J. Johansson, C. Sprenger, K. Museth, C. Wojtan, ACM Transactions on Graphics 39 (2020).","apa":"Skrivan, T., Soderstrom, A., Johansson, J., Sprenger, C., Museth, K., &#38; Wojtan, C. (2020). Wave curves: Simulating Lagrangian water waves on dynamically deforming surfaces. <i>ACM Transactions on Graphics</i>. Association for Computing Machinery. <a href=\"https://doi.org/10.1145/3386569.3392466\">https://doi.org/10.1145/3386569.3392466</a>","ista":"Skrivan T, Soderstrom A, Johansson J, Sprenger C, Museth K, Wojtan C. 2020. Wave curves: Simulating Lagrangian water waves on dynamically deforming surfaces. ACM Transactions on Graphics. 39(4), 65.","ama":"Skrivan T, Soderstrom A, Johansson J, Sprenger C, Museth K, Wojtan C. Wave curves: Simulating Lagrangian water waves on dynamically deforming surfaces. <i>ACM Transactions on Graphics</i>. 2020;39(4). doi:<a href=\"https://doi.org/10.1145/3386569.3392466\">10.1145/3386569.3392466</a>","ieee":"T. Skrivan, A. Soderstrom, J. Johansson, C. Sprenger, K. Museth, and C. Wojtan, “Wave curves: Simulating Lagrangian water waves on dynamically deforming surfaces,” <i>ACM Transactions on Graphics</i>, vol. 39, no. 4. Association for Computing Machinery, 2020."},"ec_funded":1,"article_type":"original","language":[{"iso":"eng"}],"abstract":[{"text":"We propose a method to enhance the visual detail of a water surface simulation. Our method works as a post-processing step which takes a simulation as input and increases its apparent resolution by simulating many detailed Lagrangian water waves on top of it. We extend linear water wave theory to work in non-planar domains which deform over time, and we discretize the theory using Lagrangian wave packets attached to spline curves. The method is numerically stable and trivially parallelizable, and it produces high frequency ripples with dispersive wave-like behaviors customized to the underlying fluid simulation.","lang":"eng"}],"status":"public","has_accepted_license":"1","external_id":{"isi":["000583700300038"]},"publication":"ACM Transactions on Graphics","scopus_import":"1","date_created":"2020-09-20T22:01:37Z","oa_version":"Published Version","type":"journal_article","corr_author":"1","project":[{"grant_number":"638176","name":"Big Splash: Efficient Simulation of Natural Phenomena at Extremely Large Scales","_id":"2533E772-B435-11E9-9278-68D0E5697425","call_identifier":"H2020"},{"grant_number":"665385","call_identifier":"H2020","name":"International IST Doctoral Program","_id":"2564DBCA-B435-11E9-9278-68D0E5697425"}],"date_updated":"2026-04-16T08:26:38Z","ddc":["000"],"intvolume":"        39","publication_identifier":{"eissn":["1557-7368"],"issn":["0730-0301"]},"article_processing_charge":"No","department":[{"_id":"ChWo"}],"day":"08","oa":1,"title":"Wave curves: Simulating Lagrangian water waves on dynamically deforming surfaces","user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","article_number":"65","_id":"8535","quality_controlled":"1","date_published":"2020-07-08T00:00:00Z","publisher":"Association for Computing Machinery","file":[{"file_size":20223953,"file_id":"8541","file_name":"2020_ACM_Skrivan.pdf","date_updated":"2020-09-21T07:51:44Z","success":1,"checksum":"c3a680893f01cc4a9e961ff0a4cfa12f","access_level":"open_access","creator":"dernst","relation":"main_file","date_created":"2020-09-21T07:51:44Z","content_type":"application/pdf"}],"doi":"10.1145/3386569.3392466","isi":1,"acknowledgement":"We wish to thank the anonymous reviewers and the members of the Visual Computing Group at IST Austria for their valuable feedback. This research was supported by the Scientific Service Units (SSU) of IST Austria through resources provided by Scientific Computing. This project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 638176 and Marie SkłodowskaCurie Grant Agreement No. 665385."},{"article_processing_charge":"No","publication_identifier":{"issn":["0167-7055"],"eissn":["1467-8659"]},"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","oa":1,"title":"A practical method for animating anisotropic elastoplastic materials","day":"01","keyword":["Computer Networks and Communications"],"department":[{"_id":"ChWo"}],"_id":"8765","quality_controlled":"1","date_published":"2020-05-01T00:00:00Z","acknowledgement":"We wish to thank the anonymous reviewers and the members of the Visual Computing Group at IST Austria for their valuable feedback. This research was supported by the Scientific Service Units (SSU) of IST Austria through resources provided by Scientific Computing. We would also like to thank Joseph Teran and Chenfanfu Jiang for the helpful discussions.\r\nThis project has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme under grant agreement No. 638176.","file":[{"date_updated":"2020-11-23T09:05:13Z","file_id":"8796","file_name":"2020_poff_revisited.pdf","success":1,"checksum":"7605f605acd84d0942b48bc7a1c2d72e","file_size":38969122,"date_created":"2020-11-23T09:05:13Z","content_type":"application/pdf","access_level":"open_access","relation":"main_file","creator":"dernst"}],"doi":"10.1111/cgf.13914","isi":1,"publisher":"Wiley","acknowledged_ssus":[{"_id":"ScienComp"}],"author":[{"id":"2B14B676-F248-11E8-B48F-1D18A9856A87","full_name":"Schreck, Camille","first_name":"Camille","last_name":"Schreck"},{"full_name":"Wojtan, Christopher J","id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87","last_name":"Wojtan","orcid":"0000-0001-6646-5546","first_name":"Christopher J"}],"page":"89-99","year":"2020","file_date_updated":"2020-11-23T09:05:13Z","publication_status":"published","issue":"2","volume":39,"month":"05","oa_version":"Submitted Version","publication":"Computer Graphics Forum","date_created":"2020-11-17T09:35:10Z","scopus_import":"1","type":"journal_article","abstract":[{"lang":"eng","text":"This paper introduces a simple method for simulating highly anisotropic elastoplastic material behaviors like the dissolution of fibrous phenomena (splintering wood, shredding bales of hay) and materials composed of large numbers of irregularly‐shaped bodies (piles of twigs, pencils, or cards). We introduce a simple transformation of the anisotropic problem into an equivalent isotropic one, and we solve this new “fictitious” isotropic problem using an existing simulator based on the material point method. Our approach results in minimal changes to existing simulators, and it allows us to re‐use popular isotropic plasticity models like the Drucker‐Prager yield criterion instead of inventing new anisotropic plasticity models for every phenomenon we wish to simulate."}],"has_accepted_license":"1","external_id":{"isi":["000548709600008"]},"status":"public","article_type":"original","ec_funded":1,"citation":{"mla":"Schreck, Camille, and Chris Wojtan. “A Practical Method for Animating Anisotropic Elastoplastic Materials.” <i>Computer Graphics Forum</i>, vol. 39, no. 2, Wiley, 2020, pp. 89–99, doi:<a href=\"https://doi.org/10.1111/cgf.13914\">10.1111/cgf.13914</a>.","short":"C. Schreck, C. Wojtan, Computer Graphics Forum 39 (2020) 89–99.","apa":"Schreck, C., &#38; Wojtan, C. (2020). A practical method for animating anisotropic elastoplastic materials. <i>Computer Graphics Forum</i>. Wiley. <a href=\"https://doi.org/10.1111/cgf.13914\">https://doi.org/10.1111/cgf.13914</a>","ama":"Schreck C, Wojtan C. A practical method for animating anisotropic elastoplastic materials. <i>Computer Graphics Forum</i>. 2020;39(2):89-99. doi:<a href=\"https://doi.org/10.1111/cgf.13914\">10.1111/cgf.13914</a>","ista":"Schreck C, Wojtan C. 2020. A practical method for animating anisotropic elastoplastic materials. Computer Graphics Forum. 39(2), 89–99.","ieee":"C. Schreck and C. Wojtan, “A practical method for animating anisotropic elastoplastic materials,” <i>Computer Graphics Forum</i>, vol. 39, no. 2. Wiley, pp. 89–99, 2020.","chicago":"Schreck, Camille, and Chris Wojtan. “A Practical Method for Animating Anisotropic Elastoplastic Materials.” <i>Computer Graphics Forum</i>. Wiley, 2020. <a href=\"https://doi.org/10.1111/cgf.13914\">https://doi.org/10.1111/cgf.13914</a>."},"language":[{"iso":"eng"}],"intvolume":"        39","date_updated":"2024-10-22T09:58:14Z","ddc":["000"],"project":[{"grant_number":"638176","call_identifier":"H2020","name":"Big Splash: Efficient Simulation of Natural Phenomena at Extremely Large Scales","_id":"2533E772-B435-11E9-9278-68D0E5697425"}]},{"project":[{"grant_number":"638176","_id":"2533E772-B435-11E9-9278-68D0E5697425","name":"Big Splash: Efficient Simulation of Natural Phenomena at Extremely Large Scales","call_identifier":"H2020"},{"grant_number":"715767","_id":"24F9549A-B435-11E9-9278-68D0E5697425","name":"MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and Modeling","call_identifier":"H2020"}],"date_updated":"2024-10-22T09:58:15Z","intvolume":"        39","language":[{"iso":"eng"}],"article_type":"original","citation":{"chicago":"Jeschke, Stefan, Christian Hafner, Nuttapong Chentanez, Miles Macklin, Matthias Müller-Fischer, and Chris Wojtan. “Making Procedural Water Waves Boundary-Aware.” <i>Computer Graphics Forum</i>. Wiley, 2020. <a href=\"https://doi.org/10.1111/cgf.14100\">https://doi.org/10.1111/cgf.14100</a>.","apa":"Jeschke, S., Hafner, C., Chentanez, N., Macklin, M., Müller-Fischer, M., &#38; Wojtan, C. (2020). Making procedural water waves boundary-aware. <i>Computer Graphics Forum</i>. Online Symposium: Wiley. <a href=\"https://doi.org/10.1111/cgf.14100\">https://doi.org/10.1111/cgf.14100</a>","ama":"Jeschke S, Hafner C, Chentanez N, Macklin M, Müller-Fischer M, Wojtan C. Making procedural water waves boundary-aware. <i>Computer Graphics forum</i>. 2020;39(8):47-54. doi:<a href=\"https://doi.org/10.1111/cgf.14100\">10.1111/cgf.14100</a>","ieee":"S. Jeschke, C. Hafner, N. Chentanez, M. Macklin, M. Müller-Fischer, and C. Wojtan, “Making procedural water waves boundary-aware,” <i>Computer Graphics forum</i>, vol. 39, no. 8. Wiley, pp. 47–54, 2020.","ista":"Jeschke S, Hafner C, Chentanez N, Macklin M, Müller-Fischer M, Wojtan C. 2020. Making procedural water waves boundary-aware. Computer Graphics forum. 39(8), 47–54.","mla":"Jeschke, Stefan, et al. “Making Procedural Water Waves Boundary-Aware.” <i>Computer Graphics Forum</i>, vol. 39, no. 8, Wiley, 2020, pp. 47–54, doi:<a href=\"https://doi.org/10.1111/cgf.14100\">10.1111/cgf.14100</a>.","short":"S. Jeschke, C. Hafner, N. Chentanez, M. Macklin, M. Müller-Fischer, C. Wojtan, Computer Graphics Forum 39 (2020) 47–54."},"ec_funded":1,"external_id":{"isi":["000591780400005"]},"status":"public","abstract":[{"lang":"eng","text":"The “procedural” approach to animating ocean waves is the dominant algorithm for animating larger bodies of water in\r\ninteractive applications as well as in off-line productions — it provides high visual quality with a low computational demand. In this paper, we widen the applicability of procedural water wave animation with an extension that guarantees the satisfaction of boundary conditions imposed by terrain while still approximating physical wave behavior. In combination with a particle system that models wave breaking, foam, and spray, this allows us to naturally model waves interacting with beaches and rocks. Our system is able to animate waves at large scales at interactive frame rates on a commodity PC."}],"type":"journal_article","scopus_import":"1","oa_version":"None","date_created":"2020-11-17T10:47:48Z","publication":"Computer Graphics forum","month":"12","volume":39,"issue":"8","publication_status":"published","year":"2020","page":"47-54","author":[{"first_name":"Stefan","last_name":"Jeschke","full_name":"Jeschke, Stefan","id":"44D6411A-F248-11E8-B48F-1D18A9856A87"},{"id":"400429CC-F248-11E8-B48F-1D18A9856A87","full_name":"Hafner, Christian","first_name":"Christian","last_name":"Hafner"},{"full_name":"Chentanez, Nuttapong","last_name":"Chentanez","first_name":"Nuttapong"},{"full_name":"Macklin, Miles","last_name":"Macklin","first_name":"Miles"},{"first_name":"Matthias","last_name":"Müller-Fischer","full_name":"Müller-Fischer, Matthias"},{"last_name":"Wojtan","first_name":"Christopher J","orcid":"0000-0001-6646-5546","id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87","full_name":"Wojtan, Christopher J"}],"publisher":"Wiley","isi":1,"doi":"10.1111/cgf.14100","conference":{"end_date":"2020-10-09","location":"Online Symposium","start_date":"2020-10-06","name":"SCA: Symposium on Computer Animation"},"date_published":"2020-12-01T00:00:00Z","_id":"8766","quality_controlled":"1","department":[{"_id":"ChWo"},{"_id":"BeBi"}],"day":"01","title":"Making procedural water waves boundary-aware","user_id":"2EBD1598-F248-11E8-B48F-1D18A9856A87","article_processing_charge":"No"},{"article_number":"130","_id":"6442","quality_controlled":"1","date_published":"2019-07-01T00:00:00Z","publisher":"ACM","isi":1,"doi":"10.1145/3306346.3323002","file":[{"relation":"main_file","creator":"dernst","access_level":"open_access","date_created":"2019-05-14T07:03:55Z","content_type":"application/pdf","file_size":44328918,"checksum":"1b737dfe3e051aba8f3f4ab1dceda673","date_updated":"2020-07-14T12:47:30Z","file_id":"6443","file_name":"2019_ACM_Schreck.pdf"}],"article_processing_charge":"No","title":"Fundamental solutions for water wave animation","oa":1,"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","department":[{"_id":"ChWo"}],"day":"01","status":"public","has_accepted_license":"1","external_id":{"isi":["000475740600104"]},"abstract":[{"text":"This paper investigates the use of fundamental solutions for animating detailed linear water surface waves. We first propose an analytical solution for efficiently animating circular ripples in closed form. We then show how to adapt the method of fundamental solutions (MFS) to create ambient waves interacting with complex obstacles. Subsequently, we present a novel wavelet-based discretization which outperforms the state of the art MFS approach for simulating time-varying water surface waves with moving obstacles. Our results feature high-resolution spatial details, interactions with complex boundaries, and large open ocean domains. Our method compares favorably with previous work as well as known analytical solutions. We also present comparisons between our method and real world examples.","lang":"eng"}],"type":"journal_article","date_created":"2019-05-14T07:04:06Z","oa_version":"Submitted Version","publication":"ACM Transactions on Graphics","scopus_import":"1","language":[{"iso":"eng"}],"ec_funded":1,"citation":{"apa":"Schreck, C., Hafner, C., &#38; Wojtan, C. (2019). Fundamental solutions for water wave animation. <i>ACM Transactions on Graphics</i>. ACM. <a href=\"https://doi.org/10.1145/3306346.3323002\">https://doi.org/10.1145/3306346.3323002</a>","ieee":"C. Schreck, C. Hafner, and C. Wojtan, “Fundamental solutions for water wave animation,” <i>ACM Transactions on Graphics</i>, vol. 38, no. 4. ACM, 2019.","ama":"Schreck C, Hafner C, Wojtan C. Fundamental solutions for water wave animation. <i>ACM Transactions on Graphics</i>. 2019;38(4). doi:<a href=\"https://doi.org/10.1145/3306346.3323002\">10.1145/3306346.3323002</a>","ista":"Schreck C, Hafner C, Wojtan C. 2019. Fundamental solutions for water wave animation. ACM Transactions on Graphics. 38(4), 130.","mla":"Schreck, Camille, et al. “Fundamental Solutions for Water Wave Animation.” <i>ACM Transactions on Graphics</i>, vol. 38, no. 4, 130, ACM, 2019, doi:<a href=\"https://doi.org/10.1145/3306346.3323002\">10.1145/3306346.3323002</a>.","short":"C. Schreck, C. Hafner, C. Wojtan, ACM Transactions on Graphics 38 (2019).","chicago":"Schreck, Camille, Christian Hafner, and Chris Wojtan. “Fundamental Solutions for Water Wave Animation.” <i>ACM Transactions on Graphics</i>. ACM, 2019. <a href=\"https://doi.org/10.1145/3306346.3323002\">https://doi.org/10.1145/3306346.3323002</a>."},"ddc":["000","005"],"date_updated":"2024-10-22T09:58:22Z","intvolume":"        38","project":[{"call_identifier":"H2020","name":"Big Splash: Efficient Simulation of Natural Phenomena at Extremely Large Scales","_id":"2533E772-B435-11E9-9278-68D0E5697425","grant_number":"638176"},{"grant_number":"715767","name":"MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and Modeling","call_identifier":"H2020","_id":"24F9549A-B435-11E9-9278-68D0E5697425"},{"grant_number":"665385","call_identifier":"H2020","_id":"2564DBCA-B435-11E9-9278-68D0E5697425","name":"International IST Doctoral Program"}],"author":[{"id":"2B14B676-F248-11E8-B48F-1D18A9856A87","full_name":"Schreck, Camille","first_name":"Camille","last_name":"Schreck"},{"id":"400429CC-F248-11E8-B48F-1D18A9856A87","full_name":"Hafner, Christian","first_name":"Christian","last_name":"Hafner"},{"orcid":"0000-0001-6646-5546","first_name":"Christopher J","last_name":"Wojtan","full_name":"Wojtan, Christopher J","id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87"}],"acknowledged_ssus":[{"_id":"ScienComp"}],"file_date_updated":"2020-07-14T12:47:30Z","publication_status":"published","year":"2019","month":"07","volume":38,"related_material":{"link":[{"url":"https://ist.ac.at/en/news/new-method-makes-realistic-water-wave-animations-more-efficient/","description":"News on IST Homepage","relation":"press_release"}]},"issue":"4"},{"isi":1,"doi":"10.1063/1.5109493","publisher":"AIP Publishing","conference":{"end_date":"2019-07-31","start_date":"2019-07-30","location":"Zlin, Czech Republic","name":"8th International Conference on Novel Trends in Rheology"},"quality_controlled":"1","_id":"6642","date_published":"2019-05-21T00:00:00Z","article_number":"020002","day":"21","department":[{"_id":"ChWo"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","oa":1,"title":"On diffusive variants of some classical viscoelastic rate-type models","article_processing_charge":"No","intvolume":"      2107","date_updated":"2024-02-28T13:01:28Z","arxiv":1,"citation":{"ieee":"M. Dostalík, V. Pruša, and T. Skrivan, “On diffusive variants of some classical viscoelastic rate-type models,” in <i>AIP Conference Proceedings</i>, Zlin, Czech Republic, 2019, vol. 2107.","ista":"Dostalík M, Pruša V, Skrivan T. 2019. On diffusive variants of some classical viscoelastic rate-type models. AIP Conference Proceedings. 8th International Conference on Novel Trends in Rheology vol. 2107, 020002.","ama":"Dostalík M, Pruša V, Skrivan T. On diffusive variants of some classical viscoelastic rate-type models. In: <i>AIP Conference Proceedings</i>. Vol 2107. AIP Publishing; 2019. doi:<a href=\"https://doi.org/10.1063/1.5109493\">10.1063/1.5109493</a>","apa":"Dostalík, M., Pruša, V., &#38; Skrivan, T. (2019). On diffusive variants of some classical viscoelastic rate-type models. In <i>AIP Conference Proceedings</i> (Vol. 2107). Zlin, Czech Republic: AIP Publishing. <a href=\"https://doi.org/10.1063/1.5109493\">https://doi.org/10.1063/1.5109493</a>","short":"M. Dostalík, V. Pruša, T. Skrivan, in:, AIP Conference Proceedings, AIP Publishing, 2019.","mla":"Dostalík, Mark, et al. “On Diffusive Variants of Some Classical Viscoelastic Rate-Type Models.” <i>AIP Conference Proceedings</i>, vol. 2107, 020002, AIP Publishing, 2019, doi:<a href=\"https://doi.org/10.1063/1.5109493\">10.1063/1.5109493</a>.","chicago":"Dostalík, Mark, Vít Pruša, and Tomas Skrivan. “On Diffusive Variants of Some Classical Viscoelastic Rate-Type Models.” In <i>AIP Conference Proceedings</i>, Vol. 2107. AIP Publishing, 2019. <a href=\"https://doi.org/10.1063/1.5109493\">https://doi.org/10.1063/1.5109493</a>."},"language":[{"iso":"eng"}],"scopus_import":"1","publication":"AIP Conference Proceedings","date_created":"2019-07-15T10:07:09Z","oa_version":"Preprint","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1902.07983"}],"type":"conference","abstract":[{"text":"We present a thermodynamically based approach to the design of models for viscoelastic fluids with stress diffusion effect. In particular, we show how to add a stress diffusion term to some standard viscoelastic rate-type models (Giesekus, FENE-P, Johnson–Segalman, Phan-Thien–Tanner and Bautista–Manero–Puig) so that the resulting models with the added stress diffusion term are thermodynamically consistent in the sense that they obey the first and the second law of thermodynamics. We point out the potential applications of the provided thermodynamical background in the study of flows of fluids described by the proposed models.","lang":"eng"}],"status":"public","external_id":{"arxiv":["1902.07983"],"isi":["000479303100002"]},"volume":2107,"month":"05","year":"2019","publication_status":"published","author":[{"full_name":"Dostalík, Mark","last_name":"Dostalík","first_name":"Mark"},{"full_name":"Pruša, Vít","first_name":"Vít","last_name":"Pruša"},{"first_name":"Tomas","last_name":"Skrivan","full_name":"Skrivan, Tomas","id":"486A5A46-F248-11E8-B48F-1D18A9856A87"}]},{"article_processing_charge":"No","publication_identifier":{"issn":["0730-0301"]},"day":"01","department":[{"_id":"ChWo"}],"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","title":"Optimal multiple importance sampling","date_published":"2019-07-01T00:00:00Z","_id":"7002","quality_controlled":"1","article_number":"37","doi":"10.1145/3306346.3323009","isi":1,"publisher":"ACM","author":[{"first_name":"Ivo","last_name":"Kondapaneni","full_name":"Kondapaneni, Ivo"},{"first_name":"Petr","last_name":"Vevoda","full_name":"Vevoda, Petr"},{"full_name":"Grittmann, Pascal","last_name":"Grittmann","first_name":"Pascal"},{"last_name":"Skrivan","first_name":"Tomas","id":"486A5A46-F248-11E8-B48F-1D18A9856A87","full_name":"Skrivan, Tomas"},{"first_name":"Philipp","last_name":"Slusallek","full_name":"Slusallek, Philipp"},{"full_name":"Křivánek, Jaroslav","last_name":"Křivánek","first_name":"Jaroslav"}],"volume":38,"issue":"4","month":"07","year":"2019","publication_status":"published","language":[{"iso":"eng"}],"article_type":"original","ec_funded":1,"citation":{"mla":"Kondapaneni, Ivo, et al. “Optimal Multiple Importance Sampling.” <i>ACM Transactions on Graphics</i>, vol. 38, no. 4, 37, ACM, 2019, doi:<a href=\"https://doi.org/10.1145/3306346.3323009\">10.1145/3306346.3323009</a>.","short":"I. Kondapaneni, P. Vevoda, P. Grittmann, T. Skrivan, P. Slusallek, J. Křivánek, ACM Transactions on Graphics 38 (2019).","apa":"Kondapaneni, I., Vevoda, P., Grittmann, P., Skrivan, T., Slusallek, P., &#38; Křivánek, J. (2019). Optimal multiple importance sampling. <i>ACM Transactions on Graphics</i>. ACM. <a href=\"https://doi.org/10.1145/3306346.3323009\">https://doi.org/10.1145/3306346.3323009</a>","ieee":"I. Kondapaneni, P. Vevoda, P. Grittmann, T. Skrivan, P. Slusallek, and J. Křivánek, “Optimal multiple importance sampling,” <i>ACM Transactions on Graphics</i>, vol. 38, no. 4. ACM, 2019.","ista":"Kondapaneni I, Vevoda P, Grittmann P, Skrivan T, Slusallek P, Křivánek J. 2019. Optimal multiple importance sampling. ACM Transactions on Graphics. 38(4), 37.","ama":"Kondapaneni I, Vevoda P, Grittmann P, Skrivan T, Slusallek P, Křivánek J. Optimal multiple importance sampling. <i>ACM Transactions on Graphics</i>. 2019;38(4). doi:<a href=\"https://doi.org/10.1145/3306346.3323009\">10.1145/3306346.3323009</a>","chicago":"Kondapaneni, Ivo, Petr Vevoda, Pascal Grittmann, Tomas Skrivan, Philipp Slusallek, and Jaroslav Křivánek. “Optimal Multiple Importance Sampling.” <i>ACM Transactions on Graphics</i>. ACM, 2019. <a href=\"https://doi.org/10.1145/3306346.3323009\">https://doi.org/10.1145/3306346.3323009</a>."},"type":"journal_article","date_created":"2019-11-12T13:05:40Z","oa_version":"None","publication":"ACM Transactions on Graphics","scopus_import":"1","external_id":{"isi":["000475740600011"]},"status":"public","abstract":[{"lang":"eng","text":"Multiple Importance Sampling (MIS) is a key technique for achieving robustness of Monte Carlo estimators in computer graphics and other fields. We derive optimal weighting functions for MIS that provably minimize the variance of an MIS estimator, given a set of sampling techniques. We show that the resulting variance reduction over the balance heuristic can be higher than predicted by the variance bounds derived by Veach and Guibas, who assumed only non-negative weights in their proof. We theoretically analyze the variance of the optimal MIS weights and show the relation to the variance of the balance heuristic. Furthermore, we establish a connection between the new weighting functions and control variates as previously applied to mixture sampling. We apply the new optimal weights to integration problems in light transport and show that they allow for new design considerations when choosing the appropriate sampling techniques for a given integration problem."}],"project":[{"grant_number":"642841","_id":"2508E324-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"Distributed 3D Object Design"}],"intvolume":"        38","date_updated":"2025-03-31T15:58:17Z"},{"author":[{"full_name":"Karlík, Ondřej","last_name":"Karlík","first_name":"Ondřej"},{"last_name":"Šik","first_name":"Martin","full_name":"Šik, Martin"},{"full_name":"Vévoda, Petr","first_name":"Petr","last_name":"Vévoda"},{"id":"486A5A46-F248-11E8-B48F-1D18A9856A87","full_name":"Skrivan, Tomas","last_name":"Skrivan","first_name":"Tomas"},{"full_name":"Křivánek, Jaroslav","last_name":"Křivánek","first_name":"Jaroslav"}],"publication_status":"published","year":"2019","month":"11","volume":38,"issue":"6","status":"public","external_id":{"isi":["000498397300001"]},"abstract":[{"lang":"eng","text":"Multiple importance sampling (MIS) has become an indispensable tool in Monte Carlo rendering, widely accepted as a near-optimal solution for combining different sampling techniques. But an MIS combination, using the common balance or power heuristics, often results in an overly defensive estimator, leading to high variance. We show that by generalizing the MIS framework, variance can be substantially reduced. Specifically, we optimize one of the combined sampling techniques so as to decrease the overall variance of the resulting MIS estimator. We apply the approach to the computation of direct illumination due to an HDR environment map and to the computation of global illumination using a path guiding algorithm. The implementation can be as simple as subtracting a constant value from the tabulated sampling density done entirely in a preprocessing step. This produces a consistent noise reduction in all our tests with no negative influence on run time, no artifacts or bias, and no failure cases."}],"type":"journal_article","publication":"ACM Transactions on Graphics","scopus_import":"1","date_created":"2020-01-30T10:19:43Z","oa_version":"None","language":[{"iso":"eng"}],"article_type":"original","citation":{"mla":"Karlík, Ondřej, et al. “MIS Compensation: Optimizing Sampling Techniques in Multiple Importance Sampling.” <i>ACM Transactions on Graphics</i>, vol. 38, no. 6, 151, ACM, 2019, doi:<a href=\"https://doi.org/10.1145/3355089.3356565\">10.1145/3355089.3356565</a>.","short":"O. Karlík, M. Šik, P. Vévoda, T. Skrivan, J. Křivánek, ACM Transactions on Graphics 38 (2019).","apa":"Karlík, O., Šik, M., Vévoda, P., Skrivan, T., &#38; Křivánek, J. (2019). MIS compensation: Optimizing sampling techniques in multiple importance sampling. <i>ACM Transactions on Graphics</i>. ACM. <a href=\"https://doi.org/10.1145/3355089.3356565\">https://doi.org/10.1145/3355089.3356565</a>","ieee":"O. Karlík, M. Šik, P. Vévoda, T. Skrivan, and J. Křivánek, “MIS compensation: Optimizing sampling techniques in multiple importance sampling,” <i>ACM Transactions on Graphics</i>, vol. 38, no. 6. ACM, 2019.","ista":"Karlík O, Šik M, Vévoda P, Skrivan T, Křivánek J. 2019. MIS compensation: Optimizing sampling techniques in multiple importance sampling. ACM Transactions on Graphics. 38(6), 151.","ama":"Karlík O, Šik M, Vévoda P, Skrivan T, Křivánek J. MIS compensation: Optimizing sampling techniques in multiple importance sampling. <i>ACM Transactions on Graphics</i>. 2019;38(6). doi:<a href=\"https://doi.org/10.1145/3355089.3356565\">10.1145/3355089.3356565</a>","chicago":"Karlík, Ondřej, Martin Šik, Petr Vévoda, Tomas Skrivan, and Jaroslav Křivánek. “MIS Compensation: Optimizing Sampling Techniques in Multiple Importance Sampling.” <i>ACM Transactions on Graphics</i>. ACM, 2019. <a href=\"https://doi.org/10.1145/3355089.3356565\">https://doi.org/10.1145/3355089.3356565</a>."},"date_updated":"2023-09-06T15:22:23Z","intvolume":"        38","publication_identifier":{"eissn":["1557-7368"],"issn":["0730-0301"]},"article_processing_charge":"No","title":"MIS compensation: Optimizing sampling techniques in multiple importance sampling","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","department":[{"_id":"ChWo"}],"day":"01","article_number":"151","_id":"7418","date_published":"2019-11-01T00:00:00Z","quality_controlled":"1","publisher":"ACM","doi":"10.1145/3355089.3356565","isi":1},{"doi":"10.1145/3197517.3201336","file":[{"file_size":22185016,"checksum":"db75ebabe2ec432bf41389e614d6ef62","date_updated":"2020-07-14T12:44:45Z","file_name":"2018_ACM_Jeschke.pdf","file_id":"5744","relation":"main_file","creator":"dernst","access_level":"open_access","date_created":"2018-12-18T09:59:23Z","content_type":"application/pdf"}],"isi":1,"publisher":"ACM","date_published":"2018-07-30T00:00:00Z","_id":"134","quality_controlled":"1","article_number":"94","day":"30","department":[{"_id":"ChWo"}],"user_id":"2EBD1598-F248-11E8-B48F-1D18A9856A87","oa":1,"title":"Water surface wavelets","article_processing_charge":"No","tmp":{"short":"CC BY-NC-SA (4.0)","legal_code_url":"https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode","image":"/images/cc_by_nc_sa.png","name":"Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)"},"project":[{"grant_number":"638176","call_identifier":"H2020","name":"Big Splash: Efficient Simulation of Natural Phenomena at Extremely Large Scales","_id":"2533E772-B435-11E9-9278-68D0E5697425"},{"grant_number":"665385","_id":"2564DBCA-B435-11E9-9278-68D0E5697425","name":"International IST Doctoral Program","call_identifier":"H2020"}],"intvolume":"        37","date_updated":"2024-10-22T09:58:20Z","ddc":["000"],"citation":{"ama":"Jeschke S, Skrivan T, Mueller Fischer M, Chentanez N, Macklin M, Wojtan C. Water surface wavelets. <i>ACM Transactions on Graphics</i>. 2018;37(4). doi:<a href=\"https://doi.org/10.1145/3197517.3201336\">10.1145/3197517.3201336</a>","ieee":"S. Jeschke, T. Skrivan, M. Mueller Fischer, N. Chentanez, M. Macklin, and C. Wojtan, “Water surface wavelets,” <i>ACM Transactions on Graphics</i>, vol. 37, no. 4. ACM, 2018.","ista":"Jeschke S, Skrivan T, Mueller Fischer M, Chentanez N, Macklin M, Wojtan C. 2018. Water surface wavelets. ACM Transactions on Graphics. 37(4), 94.","apa":"Jeschke, S., Skrivan, T., Mueller Fischer, M., Chentanez, N., Macklin, M., &#38; Wojtan, C. (2018). Water surface wavelets. <i>ACM Transactions on Graphics</i>. ACM. <a href=\"https://doi.org/10.1145/3197517.3201336\">https://doi.org/10.1145/3197517.3201336</a>","short":"S. Jeschke, T. Skrivan, M. Mueller Fischer, N. Chentanez, M. Macklin, C. Wojtan, ACM Transactions on Graphics 37 (2018).","mla":"Jeschke, Stefan, et al. “Water Surface Wavelets.” <i>ACM Transactions on Graphics</i>, vol. 37, no. 4, 94, ACM, 2018, doi:<a href=\"https://doi.org/10.1145/3197517.3201336\">10.1145/3197517.3201336</a>.","chicago":"Jeschke, Stefan, Tomas Skrivan, Matthias Mueller Fischer, Nuttapong Chentanez, Miles Macklin, and Chris Wojtan. “Water Surface Wavelets.” <i>ACM Transactions on Graphics</i>. ACM, 2018. <a href=\"https://doi.org/10.1145/3197517.3201336\">https://doi.org/10.1145/3197517.3201336</a>."},"ec_funded":1,"language":[{"iso":"eng"}],"publication":"ACM Transactions on Graphics","scopus_import":"1","date_created":"2018-12-11T11:44:48Z","publist_id":"7789","oa_version":"Published Version","type":"journal_article","abstract":[{"lang":"eng","text":"The current state of the art in real-time two-dimensional water wave simulation requires developers to choose between efficient Fourier-based methods, which lack interactions with moving obstacles, and finite-difference or finite element methods, which handle environmental interactions but are significantly more expensive. This paper attempts to bridge this long-standing gap between complexity and performance, by proposing a new wave simulation method that can faithfully simulate wave interactions with moving obstacles in real time while simultaneously preserving minute details and accommodating very large simulation domains.\r\n\r\nPrevious methods for simulating 2D water waves directly compute the change in height of the water surface, a strategy which imposes limitations based on the CFL condition (fast moving waves require small time steps) and Nyquist's limit (small wave details require closely-spaced simulation variables). This paper proposes a novel wavelet transformation that discretizes the liquid motion in terms of amplitude-like functions that vary over space, frequency, and direction, effectively generalizing Fourier-based methods to handle local interactions. Because these new variables change much more slowly over space than the original water height function, our change of variables drastically reduces the limitations of the CFL condition and Nyquist limit, allowing us to simulate highly detailed water waves at very large visual resolutions. Our discretization is amenable to fast summation and easy to parallelize. We also present basic extensions like pre-computed wave paths and two-way solid fluid coupling. Finally, we argue that our discretization provides a convenient set of variables for artistic manipulation, which we illustrate with a novel wave-painting interface."}],"has_accepted_license":"1","external_id":{"isi":["000448185000055"]},"status":"public","related_material":{"link":[{"description":"News on IST Homepage","relation":"press_release","url":"https://ist.ac.at/en/news/new-water-simulation-captures-small-details-even-in-large-scenes/"}]},"issue":"4","volume":37,"month":"07","year":"2018","publication_status":"published","file_date_updated":"2020-07-14T12:44:45Z","alternative_title":["SIGGRAPH"],"acknowledged_ssus":[{"_id":"ScienComp"}],"author":[{"id":"44D6411A-F248-11E8-B48F-1D18A9856A87","full_name":"Jeschke, Stefan","first_name":"Stefan","last_name":"Jeschke"},{"last_name":"Skrivan","first_name":"Tomas","full_name":"Skrivan, Tomas","id":"486A5A46-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Mueller Fischer, Matthias","last_name":"Mueller Fischer","first_name":"Matthias"},{"first_name":"Nuttapong","last_name":"Chentanez","full_name":"Chentanez, Nuttapong"},{"full_name":"Macklin, Miles","last_name":"Macklin","first_name":"Miles"},{"last_name":"Wojtan","first_name":"Christopher J","orcid":"0000-0001-6646-5546","id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87","full_name":"Wojtan, Christopher J"}]},{"abstract":[{"lang":"eng","text":"The Fluid Implicit Particle method (FLIP) reduces numerical dissipation by combining particles with grids. To improve performance, the subsequent narrow band FLIP method (NB‐FLIP) uses a FLIP‐based fluid simulation only near the liquid surface and a traditional grid‐based fluid simulation away from the surface. This spatially‐limited FLIP simulation significantly reduces the number of particles and alleviates a computational bottleneck. In this paper, we extend the NB‐FLIP idea even further, by allowing a simulation to transition between a FLIP‐like fluid simulation and a grid‐based simulation in arbitrary locations, not just near the surface. This approach leads to even more savings in memory and computation, because we can concentrate the particles only in areas where they are needed. More importantly, this new method allows us to seamlessly transition to smooth implicit surface geometry wherever the particle‐based simulation is unnecessary. Consequently, our method leads to a practical algorithm for avoiding the noisy surface artifacts associated with particle‐based liquid simulations, while simultaneously maintaining the benefits of a FLIP simulation in regions of dynamic motion."}],"has_accepted_license":"1","external_id":{"isi":["000434085600016"]},"status":"public","scopus_import":"1","publication":"Computer Graphics Forum","date_created":"2018-12-11T11:44:49Z","oa_version":"Submitted Version","type":"journal_article","article_type":"original","ec_funded":1,"citation":{"chicago":"Sato, Takahiro, Chris Wojtan, Nils Thuerey, Takeo Igarashi, and Ryoichi Ando. “Extended Narrow Band FLIP for Liquid Simulations.” <i>Computer Graphics Forum</i>. Wiley, 2018. <a href=\"https://doi.org/10.1111/cgf.13351\">https://doi.org/10.1111/cgf.13351</a>.","ama":"Sato T, Wojtan C, Thuerey N, Igarashi T, Ando R. Extended narrow band FLIP for liquid simulations. <i>Computer Graphics Forum</i>. 2018;37(2):169-177. doi:<a href=\"https://doi.org/10.1111/cgf.13351\">10.1111/cgf.13351</a>","ieee":"T. Sato, C. Wojtan, N. Thuerey, T. Igarashi, and R. Ando, “Extended narrow band FLIP for liquid simulations,” <i>Computer Graphics Forum</i>, vol. 37, no. 2. Wiley, pp. 169–177, 2018.","ista":"Sato T, Wojtan C, Thuerey N, Igarashi T, Ando R. 2018. Extended narrow band FLIP for liquid simulations. Computer Graphics Forum. 37(2), 169–177.","apa":"Sato, T., Wojtan, C., Thuerey, N., Igarashi, T., &#38; Ando, R. (2018). Extended narrow band FLIP for liquid simulations. <i>Computer Graphics Forum</i>. Wiley. <a href=\"https://doi.org/10.1111/cgf.13351\">https://doi.org/10.1111/cgf.13351</a>","short":"T. Sato, C. Wojtan, N. Thuerey, T. Igarashi, R. Ando, Computer Graphics Forum 37 (2018) 169–177.","mla":"Sato, Takahiro, et al. “Extended Narrow Band FLIP for Liquid Simulations.” <i>Computer Graphics Forum</i>, vol. 37, no. 2, Wiley, 2018, pp. 169–77, doi:<a href=\"https://doi.org/10.1111/cgf.13351\">10.1111/cgf.13351</a>."},"language":[{"iso":"eng"}],"date_updated":"2024-10-22T09:58:20Z","ddc":["006"],"intvolume":"        37","project":[{"grant_number":"638176","_id":"2533E772-B435-11E9-9278-68D0E5697425","name":"Big Splash: Efficient Simulation of Natural Phenomena at Extremely Large Scales","call_identifier":"H2020"}],"author":[{"first_name":"Takahiro","last_name":"Sato","full_name":"Sato, Takahiro"},{"id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87","full_name":"Wojtan, Christopher J","last_name":"Wojtan","first_name":"Christopher J","orcid":"0000-0001-6646-5546"},{"first_name":"Nils","last_name":"Thuerey","full_name":"Thuerey, Nils"},{"full_name":"Igarashi, Takeo","first_name":"Takeo","last_name":"Igarashi"},{"last_name":"Ando","first_name":"Ryoichi","full_name":"Ando, Ryoichi"}],"alternative_title":["Eurographics"],"page":"169 - 177","file_date_updated":"2020-10-08T08:38:23Z","publication_status":"published","year":"2018","month":"05","issue":"2","volume":37,"quality_controlled":"1","_id":"135","date_published":"2018-05-22T00:00:00Z","publisher":"Wiley","doi":"10.1111/cgf.13351","file":[{"access_level":"open_access","creator":"wojtan","relation":"main_file","content_type":"application/pdf","date_created":"2020-10-08T08:38:23Z","file_size":54309947,"file_name":"exnbflip.pdf","file_id":"8627","date_updated":"2020-10-08T08:38:23Z","checksum":"8edb90da8a72395eb5d970580e0925b6","success":1}],"isi":1,"publication_identifier":{"issn":["0167-7055"]},"article_processing_charge":"No","oa":1,"title":"Extended narrow band FLIP for liquid simulations","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","department":[{"_id":"ChWo"}],"day":"22"},{"author":[{"last_name":"Gajda-Zagorska","first_name":"Ewa P","full_name":"Gajda-Zagorska, Ewa P","id":"47794CF0-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Schaefer","first_name":"Robert","full_name":"Schaefer, Robert"},{"full_name":"Smołka, Maciej","last_name":"Smołka","first_name":"Maciej"},{"full_name":"Pardo, David","last_name":"Pardo","first_name":"David"},{"last_name":"Alvarez Aramberri","first_name":"Julen","full_name":"Alvarez Aramberri, Julen"}],"page":"85 - 94","file_date_updated":"2019-01-18T08:43:16Z","publication_status":"published","year":"2017","month":"01","volume":18,"abstract":[{"lang":"eng","text":"We propose a new memetic strategy that can solve the multi-physics, complex inverse problems, formulated as the multi-objective optimization ones, in which objectives are misfits between the measured and simulated states of various governing processes. The multi-deme structure of the strategy allows for both, intensive, relatively cheap exploration with a moderate accuracy and more accurate search many regions of Pareto set in parallel. The special type of selection operator prefers the coherent alternative solutions, eliminating artifacts appearing in the particular processes. The additional accuracy increment is obtained by the parallel convex searches applied to the local scalarizations of the misfit vector. The strategy is dedicated for solving ill-conditioned problems, for which inverting the single physical process can lead to the ambiguous results. The skill of the selection in artifact elimination is shown on the benchmark problem, while the whole strategy was applied for identification of oil deposits, where the misfits are related to various frequencies of the magnetic and electric waves of the magnetotelluric measurements. 2016 Elsevier B.V."}],"status":"public","has_accepted_license":"1","external_id":{"isi":["000393528700009"]},"scopus_import":"1","oa_version":"Submitted Version","publication":"Journal of Computational Science","date_created":"2018-12-11T11:50:26Z","publist_id":"6206","type":"journal_article","citation":{"ama":"Gajda-Zagorska EP, Schaefer R, Smołka M, Pardo D, Alvarez Aramberri J. A multi objective memetic inverse solver reinforced by local optimization methods. <i>Journal of Computational Science</i>. 2017;18:85-94. doi:<a href=\"https://doi.org/10.1016/j.jocs.2016.06.007\">10.1016/j.jocs.2016.06.007</a>","ista":"Gajda-Zagorska EP, Schaefer R, Smołka M, Pardo D, Alvarez Aramberri J. 2017. A multi objective memetic inverse solver reinforced by local optimization methods. Journal of Computational Science. 18, 85–94.","ieee":"E. P. Gajda-Zagorska, R. Schaefer, M. Smołka, D. Pardo, and J. Alvarez Aramberri, “A multi objective memetic inverse solver reinforced by local optimization methods,” <i>Journal of Computational Science</i>, vol. 18. Elsevier, pp. 85–94, 2017.","apa":"Gajda-Zagorska, E. P., Schaefer, R., Smołka, M., Pardo, D., &#38; Alvarez Aramberri, J. (2017). A multi objective memetic inverse solver reinforced by local optimization methods. <i>Journal of Computational Science</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.jocs.2016.06.007\">https://doi.org/10.1016/j.jocs.2016.06.007</a>","short":"E.P. Gajda-Zagorska, R. Schaefer, M. Smołka, D. Pardo, J. Alvarez Aramberri, Journal of Computational Science 18 (2017) 85–94.","mla":"Gajda-Zagorska, Ewa P., et al. “A Multi Objective Memetic Inverse Solver Reinforced by Local Optimization Methods.” <i>Journal of Computational Science</i>, vol. 18, Elsevier, 2017, pp. 85–94, doi:<a href=\"https://doi.org/10.1016/j.jocs.2016.06.007\">10.1016/j.jocs.2016.06.007</a>.","chicago":"Gajda-Zagorska, Ewa P, Robert Schaefer, Maciej Smołka, David Pardo, and Julen Alvarez Aramberri. “A Multi Objective Memetic Inverse Solver Reinforced by Local Optimization Methods.” <i>Journal of Computational Science</i>. Elsevier, 2017. <a href=\"https://doi.org/10.1016/j.jocs.2016.06.007\">https://doi.org/10.1016/j.jocs.2016.06.007</a>."},"language":[{"iso":"eng"}],"date_updated":"2025-07-10T11:50:11Z","ddc":["000"],"intvolume":"        18","publication_identifier":{"issn":["1877-7503"]},"article_processing_charge":"No","oa":1,"title":"A multi objective memetic inverse solver reinforced by local optimization methods","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","department":[{"_id":"ChWo"}],"day":"01","_id":"1152","date_published":"2017-01-01T00:00:00Z","quality_controlled":"1","publisher":"Elsevier","file":[{"success":1,"file_name":"2016_jocs_ewa.pdf","file_id":"5842","date_updated":"2019-01-18T08:43:16Z","file_size":1083911,"content_type":"application/pdf","date_created":"2019-01-18T08:43:16Z","creator":"dernst","relation":"main_file","access_level":"open_access"}],"isi":1,"doi":"10.1016/j.jocs.2016.06.007"},{"month":"09","issue":"6","volume":36,"publication_status":"published","file_date_updated":"2020-07-14T12:44:47Z","year":"2017","page":"312 - 337","author":[{"full_name":"Manteaux, Pierre","first_name":"Pierre","last_name":"Manteaux"},{"last_name":"Wojtan","orcid":"0000-0001-6646-5546","first_name":"Christopher J","full_name":"Wojtan, Christopher J","id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Narain, Rahul","first_name":"Rahul","last_name":"Narain"},{"full_name":"Redon, Stéphane","last_name":"Redon","first_name":"Stéphane"},{"first_name":"François","last_name":"Faure","full_name":"Faure, François"},{"last_name":"Cani","first_name":"Marie","full_name":"Cani, Marie"}],"date_updated":"2023-09-20T11:05:36Z","pubrep_id":"634","ddc":["000"],"intvolume":"        36","citation":{"ieee":"P. Manteaux, C. Wojtan, R. Narain, S. Redon, F. Faure, and M. Cani, “Adaptive physically based models in computer graphics,” <i>Computer Graphics Forum</i>, vol. 36, no. 6. Wiley-Blackwell, pp. 312–337, 2017.","ama":"Manteaux P, Wojtan C, Narain R, Redon S, Faure F, Cani M. Adaptive physically based models in computer graphics. <i>Computer Graphics Forum</i>. 2017;36(6):312-337. doi:<a href=\"https://doi.org/10.1111/cgf.12941\">10.1111/cgf.12941</a>","ista":"Manteaux P, Wojtan C, Narain R, Redon S, Faure F, Cani M. 2017. Adaptive physically based models in computer graphics. Computer Graphics Forum. 36(6), 312–337.","apa":"Manteaux, P., Wojtan, C., Narain, R., Redon, S., Faure, F., &#38; Cani, M. (2017). Adaptive physically based models in computer graphics. <i>Computer Graphics Forum</i>. Wiley-Blackwell. <a href=\"https://doi.org/10.1111/cgf.12941\">https://doi.org/10.1111/cgf.12941</a>","short":"P. Manteaux, C. Wojtan, R. Narain, S. Redon, F. Faure, M. Cani, Computer Graphics Forum 36 (2017) 312–337.","mla":"Manteaux, Pierre, et al. “Adaptive Physically Based Models in Computer Graphics.” <i>Computer Graphics Forum</i>, vol. 36, no. 6, Wiley-Blackwell, 2017, pp. 312–37, doi:<a href=\"https://doi.org/10.1111/cgf.12941\">10.1111/cgf.12941</a>.","chicago":"Manteaux, Pierre, Chris Wojtan, Rahul Narain, Stéphane Redon, François Faure, and Marie Cani. “Adaptive Physically Based Models in Computer Graphics.” <i>Computer Graphics Forum</i>. Wiley-Blackwell, 2017. <a href=\"https://doi.org/10.1111/cgf.12941\">https://doi.org/10.1111/cgf.12941</a>."},"language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"One of the major challenges in physically based modelling is making simulations efficient. Adaptive models provide an essential solution to these efficiency goals. These models are able to self-adapt in space and time, attempting to provide the best possible compromise between accuracy and speed. This survey reviews the adaptive solutions proposed so far in computer graphics. Models are classified according to the strategy they use for adaptation, from time-stepping and freezing techniques to geometric adaptivity in the form of structured grids, meshes and particles. Applications range from fluids, through deformable bodies, to articulated solids."}],"status":"public","external_id":{"isi":["000408634200019"]},"has_accepted_license":"1","date_created":"2018-12-11T11:51:37Z","scopus_import":"1","publist_id":"5873","oa_version":"Submitted Version","publication":"Computer Graphics Forum","type":"journal_article","department":[{"_id":"ChWo"}],"day":"01","oa":1,"title":"Adaptive physically based models in computer graphics","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","publication_identifier":{"issn":["01677055"]},"article_processing_charge":"No","publisher":"Wiley-Blackwell","isi":1,"file":[{"checksum":"7676e9a9ead6d58c3000988c97deb2ef","date_updated":"2020-07-14T12:44:47Z","file_name":"IST-2016-634-v1+1_starAdaptivity-cgf.pdf","file_id":"5208","file_size":1434439,"date_created":"2018-12-12T10:16:21Z","content_type":"application/pdf","relation":"main_file","creator":"system","access_level":"open_access"}],"acknowledgement":"This work was partly supported by the starting grants ADAPT and BigSplash, as well as the advanced grant EXPRESSIVE from the European Research Council (ERC-2012-StG_20111012, ERC-2014-StG_638176 and ERC-2011-ADG_20110209).","doi":"10.1111/cgf.12941","quality_controlled":"1","_id":"1367","date_published":"2017-09-01T00:00:00Z"},{"publication_identifier":{"issn":["0730-0301"]},"article_processing_charge":"Yes (in subscription journal)","oa":1,"title":"Water wave packets","user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","department":[{"_id":"ChWo"}],"day":"01","article_number":"103","_id":"470","date_published":"2017-07-01T00:00:00Z","quality_controlled":"1","publisher":"ACM","file":[{"checksum":"82a3b2bfeee4ddef16ecc21675d1a48a","date_updated":"2020-07-14T12:46:34Z","file_id":"7359","file_name":"wavepackets_final.pdf","file_size":13131683,"content_type":"application/pdf","date_created":"2020-01-24T09:32:35Z","relation":"main_file","creator":"wojtan","access_level":"open_access"}],"doi":"10.1145/3072959.3073678","isi":1,"acknowledged_ssus":[{"_id":"ScienComp"}],"author":[{"orcid":"0000-0003-4330-8884","first_name":"Stefan","last_name":"Jeschke","full_name":"Jeschke, Stefan","id":"44D6411A-F248-11E8-B48F-1D18A9856A87"},{"id":"3C61F1D2-F248-11E8-B48F-1D18A9856A87","full_name":"Wojtan, Christopher J","first_name":"Christopher J","orcid":"0000-0001-6646-5546","last_name":"Wojtan"}],"publication_status":"published","file_date_updated":"2020-07-14T12:46:34Z","year":"2017","month":"07","issue":"4","volume":36,"abstract":[{"lang":"eng","text":"This paper presents a method for simulating water surface waves as a displacement field on a 2D domain. Our method relies on Lagrangian particles that carry packets of water wave energy; each packet carries information about an entire group of wave trains, as opposed to only a single wave crest. Our approach is unconditionally stable and can simulate high resolution geometric details. This approach also presents a straightforward interface for artistic control, because it is essentially a particle system with intuitive parameters like wavelength and amplitude. Our implementation parallelizes well and runs in real time for moderately challenging scenarios."}],"status":"public","has_accepted_license":"1","external_id":{"isi":["000406432100071"]},"publist_id":"7350","date_created":"2018-12-11T11:46:39Z","publication":"ACM Transactions on Graphics","oa_version":"Published Version","scopus_import":"1","type":"journal_article","article_type":"original","ec_funded":1,"citation":{"ista":"Jeschke S, Wojtan C. 2017. Water wave packets. ACM Transactions on Graphics. 36(4), 103.","ieee":"S. Jeschke and C. Wojtan, “Water wave packets,” <i>ACM Transactions on Graphics</i>, vol. 36, no. 4. ACM, 2017.","ama":"Jeschke S, Wojtan C. Water wave packets. <i>ACM Transactions on Graphics</i>. 2017;36(4). doi:<a href=\"https://doi.org/10.1145/3072959.3073678\">10.1145/3072959.3073678</a>","apa":"Jeschke, S., &#38; Wojtan, C. (2017). Water wave packets. <i>ACM Transactions on Graphics</i>. ACM. <a href=\"https://doi.org/10.1145/3072959.3073678\">https://doi.org/10.1145/3072959.3073678</a>","short":"S. Jeschke, C. Wojtan, ACM Transactions on Graphics 36 (2017).","mla":"Jeschke, Stefan, and Chris Wojtan. “Water Wave Packets.” <i>ACM Transactions on Graphics</i>, vol. 36, no. 4, 103, ACM, 2017, doi:<a href=\"https://doi.org/10.1145/3072959.3073678\">10.1145/3072959.3073678</a>.","chicago":"Jeschke, Stefan, and Chris Wojtan. “Water Wave Packets.” <i>ACM Transactions on Graphics</i>. ACM, 2017. <a href=\"https://doi.org/10.1145/3072959.3073678\">https://doi.org/10.1145/3072959.3073678</a>."},"language":[{"iso":"eng"}],"date_updated":"2026-04-16T09:58:39Z","ddc":["006"],"intvolume":"        36","project":[{"grant_number":"638176","_id":"2533E772-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"Big Splash: Efficient Simulation of Natural Phenomena at Extremely Large Scales"}]},{"citation":{"chicago":"Schreck, Camille, Damien Rohmer, and Stefanie Hahmann. “Interactive Paper Tearing.” <i>Computer Graphics Forum</i>. Wiley, 2017. <a href=\"https://doi.org/10.1111/cgf.13110\">https://doi.org/10.1111/cgf.13110</a>.","ama":"Schreck C, Rohmer D, Hahmann S. Interactive paper tearing. <i>Computer Graphics Forum</i>. 2017;36(2):95-106. doi:<a href=\"https://doi.org/10.1111/cgf.13110\">10.1111/cgf.13110</a>","ista":"Schreck C, Rohmer D, Hahmann S. 2017. Interactive paper tearing. Computer Graphics Forum. 36(2), 95–106.","ieee":"C. Schreck, D. Rohmer, and S. Hahmann, “Interactive paper tearing,” <i>Computer Graphics Forum</i>, vol. 36, no. 2. Wiley, pp. 95–106, 2017.","apa":"Schreck, C., Rohmer, D., &#38; Hahmann, S. (2017). Interactive paper tearing. <i>Computer Graphics Forum</i>. Wiley. <a href=\"https://doi.org/10.1111/cgf.13110\">https://doi.org/10.1111/cgf.13110</a>","short":"C. Schreck, D. Rohmer, S. Hahmann, Computer Graphics Forum 36 (2017) 95–106.","mla":"Schreck, Camille, et al. “Interactive Paper Tearing.” <i>Computer Graphics Forum</i>, vol. 36, no. 2, Wiley, 2017, pp. 95–106, doi:<a href=\"https://doi.org/10.1111/cgf.13110\">10.1111/cgf.13110</a>."},"article_type":"original","language":[{"iso":"eng"}],"publist_id":"7056","scopus_import":"1","date_created":"2018-12-11T11:47:49Z","publication":"Computer Graphics Forum","oa_version":"Published Version","type":"journal_article","main_file_link":[{"url":"https://hal.inria.fr/hal-01647113/file/eg_2017_schreck_paper_tearing.pdf","open_access":"1"}],"abstract":[{"lang":"eng","text":"We propose an efficient method to model paper tearing in the context of interactive modeling. The method uses geometrical information to automatically detect potential starting points of tears. We further introduce a new hybrid geometrical and physical-based method to compute the trajectory of tears while procedurally synthesizing high resolution details of the tearing path using a texture based approach. The results obtained are compared with real paper and with previous studies on the expected geometric paths of paper that tears."}],"external_id":{"isi":["000404474000011"]},"status":"public","project":[{"grant_number":"P 24352-N23","call_identifier":"FWF","name":"Deep Pictures: Creating Visual and Haptic Vector Images","_id":"25357BD2-B435-11E9-9278-68D0E5697425"}],"intvolume":"        36","date_updated":"2025-09-11T07:02:03Z","ddc":["000"],"page":"95 - 106","author":[{"id":"2B14B676-F248-11E8-B48F-1D18A9856A87","full_name":"Schreck, Camille","first_name":"Camille","last_name":"Schreck"},{"full_name":"Rohmer, Damien","last_name":"Rohmer","first_name":"Damien"},{"full_name":"Hahmann, Stefanie","first_name":"Stefanie","last_name":"Hahmann"}],"issue":"2","volume":36,"month":"05","year":"2017","publication_status":"published","date_published":"2017-05-01T00:00:00Z","_id":"670","quality_controlled":"1","isi":1,"doi":"10.1111/cgf.13110","publisher":"Wiley","article_processing_charge":"No","publication_identifier":{"issn":["01677055"]},"day":"01","department":[{"_id":"ChWo"}],"user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","oa":1,"title":"Interactive paper tearing"},{"department":[{"_id":"ChLa"},{"_id":"ChWo"}],"day":"14","title":"iCaRL: Incremental classifier and representation learning","oa":1,"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publication_identifier":{"isbn":["978-153860457-1"]},"article_processing_charge":"No","publisher":"IEEE","doi":"10.1109/CVPR.2017.587","isi":1,"conference":{"start_date":"2017-07-21","location":"Honolulu, HA, United States","end_date":"2017-07-26","name":"CVPR: Computer Vision and Pattern Recognition"},"date_published":"2017-04-14T00:00:00Z","_id":"998","quality_controlled":"1","month":"04","volume":2017,"publication_status":"published","year":"2017","page":"5533 - 5542","author":[{"full_name":"Rebuffi, Sylvestre Alvise","first_name":"Sylvestre Alvise","last_name":"Rebuffi"},{"first_name":"Alexander","last_name":"Kolesnikov","full_name":"Kolesnikov, Alexander","id":"2D157DB6-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Georg","last_name":"Sperl","id":"4DD40360-F248-11E8-B48F-1D18A9856A87","full_name":"Sperl, Georg"},{"last_name":"Lampert","first_name":"Christoph","orcid":"0000-0001-8622-7887","id":"40C20FD2-F248-11E8-B48F-1D18A9856A87","full_name":"Lampert, Christoph"}],"project":[{"call_identifier":"FP7","name":"Lifelong Learning of Visual Scene Understanding","_id":"2532554C-B435-11E9-9278-68D0E5697425","grant_number":"308036"}],"arxiv":1,"date_updated":"2025-06-04T08:18:32Z","intvolume":"      2017","language":[{"iso":"eng"}],"ec_funded":1,"citation":{"ista":"Rebuffi SA, Kolesnikov A, Sperl G, Lampert C. 2017. iCaRL: Incremental classifier and representation learning. CVPR: Computer Vision and Pattern Recognition vol. 2017, 5533–5542.","ama":"Rebuffi SA, Kolesnikov A, Sperl G, Lampert C. iCaRL: Incremental classifier and representation learning. In: Vol 2017. IEEE; 2017:5533-5542. doi:<a href=\"https://doi.org/10.1109/CVPR.2017.587\">10.1109/CVPR.2017.587</a>","ieee":"S. A. Rebuffi, A. Kolesnikov, G. Sperl, and C. Lampert, “iCaRL: Incremental classifier and representation learning,” presented at the CVPR: Computer Vision and Pattern Recognition, Honolulu, HA, United States, 2017, vol. 2017, pp. 5533–5542.","apa":"Rebuffi, S. A., Kolesnikov, A., Sperl, G., &#38; Lampert, C. (2017). iCaRL: Incremental classifier and representation learning (Vol. 2017, pp. 5533–5542). Presented at the CVPR: Computer Vision and Pattern Recognition, Honolulu, HA, United States: IEEE. <a href=\"https://doi.org/10.1109/CVPR.2017.587\">https://doi.org/10.1109/CVPR.2017.587</a>","short":"S.A. Rebuffi, A. Kolesnikov, G. Sperl, C. Lampert, in:, IEEE, 2017, pp. 5533–5542.","mla":"Rebuffi, Sylvestre Alvise, et al. <i>ICaRL: Incremental Classifier and Representation Learning</i>. Vol. 2017, IEEE, 2017, pp. 5533–42, doi:<a href=\"https://doi.org/10.1109/CVPR.2017.587\">10.1109/CVPR.2017.587</a>.","chicago":"Rebuffi, Sylvestre Alvise, Alexander Kolesnikov, Georg Sperl, and Christoph Lampert. “ICaRL: Incremental Classifier and Representation Learning,” 2017:5533–42. IEEE, 2017. <a href=\"https://doi.org/10.1109/CVPR.2017.587\">https://doi.org/10.1109/CVPR.2017.587</a>."},"external_id":{"isi":["000418371405066"],"arxiv":["1611.07725"]},"status":"public","abstract":[{"lang":"eng","text":"A major open problem on the road to artificial intelligence is the development of incrementally learning systems that learn about more and more concepts over time from a stream of data. In this work, we introduce a new training strategy, iCaRL, that allows learning in such a class-incremental way: only the training data for a small number of classes has to be present at the same time and new classes can be added progressively. iCaRL learns strong classifiers and a data representation simultaneously. This distinguishes it from earlier works that were fundamentally limited to fixed data representations and therefore incompatible with deep learning architectures. We show by experiments on CIFAR-100 and ImageNet ILSVRC 2012 data that iCaRL can learn many classes incrementally over a long period of time where other strategies quickly fail. "}],"type":"conference","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1611.07725"}],"date_created":"2018-12-11T11:49:37Z","oa_version":"Submitted Version","publist_id":"6400","scopus_import":"1"}]