---
_id: '2912'
article_processing_charge: No
author:
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
- first_name: Nataliya
  full_name: Strelkova, Nataliya
  last_name: Strelkova
citation:
  ama: Edelsbrunner H, Strelkova N. On the configuration space for the shortest networks.
    <i>Russian Mathematical Surveys</i>. 2012;67(6):1167–1168. doi:<a href="https://doi.org/10.4213/rm9503">10.4213/rm9503</a>
  apa: Edelsbrunner, H., &#38; Strelkova, N. (2012). On the configuration space for
    the shortest networks. <i>Russian Mathematical Surveys</i>. Russian Academy of
    Sciences. <a href="https://doi.org/10.4213/rm9503">https://doi.org/10.4213/rm9503</a>
  chicago: Edelsbrunner, Herbert, and Nataliya Strelkova. “On the Configuration Space
    for the Shortest Networks.” <i>Russian Mathematical Surveys</i>. Russian Academy
    of Sciences, 2012. <a href="https://doi.org/10.4213/rm9503">https://doi.org/10.4213/rm9503</a>.
  ieee: H. Edelsbrunner and N. Strelkova, “On the configuration space for the shortest
    networks,” <i>Russian Mathematical Surveys</i>, vol. 67, no. 6. Russian Academy
    of Sciences, pp. 1167–1168, 2012.
  ista: Edelsbrunner H, Strelkova N. 2012. On the configuration space for the shortest
    networks. Russian Mathematical Surveys. 67(6), 1167–1168.
  mla: Edelsbrunner, Herbert, and Nataliya Strelkova. “On the Configuration Space
    for the Shortest Networks.” <i>Russian Mathematical Surveys</i>, vol. 67, no.
    6, Russian Academy of Sciences, 2012, pp. 1167–1168, doi:<a href="https://doi.org/10.4213/rm9503">10.4213/rm9503</a>.
  short: H. Edelsbrunner, N. Strelkova, Russian Mathematical Surveys 67 (2012) 1167–1168.
date_created: 2018-12-11T12:00:18Z
date_published: 2012-10-01T00:00:00Z
date_updated: 2023-10-17T11:40:39Z
day: '01'
department:
- _id: HeEd
doi: 10.4213/rm9503
intvolume: '        67'
issue: '6'
language:
- iso: eng
month: '10'
oa_version: None
page: 1167–1168
publication: Russian Mathematical Surveys
publication_status: published
publisher: Russian Academy of Sciences
publist_id: '3831'
quality_controlled: '1'
status: public
title: On the configuration space for the shortest networks
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 67
year: '2012'
...
---
_id: '2941'
article_processing_charge: No
author:
- first_name: Nikolai
  full_name: Dolbilin, Nikolai
  last_name: Dolbilin
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
- first_name: Oleg
  full_name: Musin, Oleg
  last_name: Musin
citation:
  ama: Dolbilin N, Edelsbrunner H, Musin O. On the optimality of functionals over
    triangulations of Delaunay sets. <i>Russian Mathematical Surveys</i>. 2012;67(4):781-783.
    doi:<a href="https://doi.org/10.1070/RM2012v067n04ABEH004807">10.1070/RM2012v067n04ABEH004807</a>
  apa: Dolbilin, N., Edelsbrunner, H., &#38; Musin, O. (2012). On the optimality of
    functionals over triangulations of Delaunay sets. <i>Russian Mathematical Surveys</i>.
    IOP Publishing. <a href="https://doi.org/10.1070/RM2012v067n04ABEH004807">https://doi.org/10.1070/RM2012v067n04ABEH004807</a>
  chicago: Dolbilin, Nikolai, Herbert Edelsbrunner, and Oleg Musin. “On the Optimality
    of Functionals over Triangulations of Delaunay Sets.” <i>Russian Mathematical
    Surveys</i>. IOP Publishing, 2012. <a href="https://doi.org/10.1070/RM2012v067n04ABEH004807">https://doi.org/10.1070/RM2012v067n04ABEH004807</a>.
  ieee: N. Dolbilin, H. Edelsbrunner, and O. Musin, “On the optimality of functionals
    over triangulations of Delaunay sets,” <i>Russian Mathematical Surveys</i>, vol.
    67, no. 4. IOP Publishing, pp. 781–783, 2012.
  ista: Dolbilin N, Edelsbrunner H, Musin O. 2012. On the optimality of functionals
    over triangulations of Delaunay sets. Russian Mathematical Surveys. 67(4), 781–783.
  mla: Dolbilin, Nikolai, et al. “On the Optimality of Functionals over Triangulations
    of Delaunay Sets.” <i>Russian Mathematical Surveys</i>, vol. 67, no. 4, IOP Publishing,
    2012, pp. 781–83, doi:<a href="https://doi.org/10.1070/RM2012v067n04ABEH004807">10.1070/RM2012v067n04ABEH004807</a>.
  short: N. Dolbilin, H. Edelsbrunner, O. Musin, Russian Mathematical Surveys 67 (2012)
    781–783.
date_created: 2018-12-11T12:00:28Z
date_published: 2012-11-01T00:00:00Z
date_updated: 2025-09-30T08:13:48Z
day: '01'
ddc:
- '510'
department:
- _id: HeEd
doi: 10.1070/RM2012v067n04ABEH004807
external_id:
  isi:
  - '000310789000005'
file:
- access_level: open_access
  checksum: 389a5ae53d6347de36c3468034f2821d
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:16:49Z
  date_updated: 2020-07-14T12:45:55Z
  file_id: '5239'
  file_name: IST-2013-132-v1+1_2012-J-04-Functional-E.pdf
  file_size: 253816
  relation: main_file
file_date_updated: 2020-07-14T12:45:55Z
has_accepted_license: '1'
intvolume: '        67'
isi: 1
issue: '4'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Submitted Version
page: 781 - 783
publication: Russian Mathematical Surveys
publication_status: published
publisher: IOP Publishing
publist_id: '3792'
pubrep_id: '132'
quality_controlled: '1'
scopus_import: '1'
status: public
title: On the optimality of functionals over triangulations of Delaunay sets
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 67
year: '2012'
...
---
OA_type: closed access
_id: '2971'
abstract:
- lang: eng
  text: 'We study the task of interactive semantic labeling of a segmentation hierarchy.
    To this end we propose a framework interleaving two components: an automatic labeling
    step, based on a Conditional Random Field whose dependencies are defined by the
    inclusion tree of the segmentation hierarchy, and an interaction step that integrates
    incremental input from a human user. Evaluated on two distinct datasets, the proposed
    interactive approach efficiently integrates human interventions and illustrates
    the advantages of structured prediction in an interactive framework. '
alternative_title:
- LNCS
article_processing_charge: No
author:
- first_name: Georg
  full_name: Zankl, Georg
  last_name: Zankl
- first_name: Yll
  full_name: Haxhimusa, Yll
  last_name: Haxhimusa
- first_name: Adrian
  full_name: Ion, Adrian
  id: 29F89302-F248-11E8-B48F-1D18A9856A87
  last_name: Ion
citation:
  ama: 'Zankl G, Haxhimusa Y, Ion A. Interactive labeling of image segmentation hierarchies.
    In: <i>34th DAGM and 36th OAGM Symposium</i>. Vol 7476. Springer; 2012:11-20.
    doi:<a href="https://doi.org/10.1007/978-3-642-32717-9_2">10.1007/978-3-642-32717-9_2</a>'
  apa: 'Zankl, G., Haxhimusa, Y., &#38; Ion, A. (2012). Interactive labeling of image
    segmentation hierarchies. In <i>34th DAGM and 36th OAGM Symposium</i> (Vol. 7476,
    pp. 11–20). Graz, Austria: Springer. <a href="https://doi.org/10.1007/978-3-642-32717-9_2">https://doi.org/10.1007/978-3-642-32717-9_2</a>'
  chicago: Zankl, Georg, Yll Haxhimusa, and Adrian Ion. “Interactive Labeling of Image
    Segmentation Hierarchies.” In <i>34th DAGM and 36th OAGM Symposium</i>, 7476:11–20.
    Springer, 2012. <a href="https://doi.org/10.1007/978-3-642-32717-9_2">https://doi.org/10.1007/978-3-642-32717-9_2</a>.
  ieee: G. Zankl, Y. Haxhimusa, and A. Ion, “Interactive labeling of image segmentation
    hierarchies,” in <i>34th DAGM and 36th OAGM Symposium</i>, Graz, Austria, 2012,
    vol. 7476, pp. 11–20.
  ista: Zankl G, Haxhimusa Y, Ion A. 2012. Interactive labeling of image segmentation
    hierarchies. 34th DAGM and 36th OAGM Symposium. Pattern Recognition, LNCS, vol.
    7476, 11–20.
  mla: Zankl, Georg, et al. “Interactive Labeling of Image Segmentation Hierarchies.”
    <i>34th DAGM and 36th OAGM Symposium</i>, vol. 7476, Springer, 2012, pp. 11–20,
    doi:<a href="https://doi.org/10.1007/978-3-642-32717-9_2">10.1007/978-3-642-32717-9_2</a>.
  short: G. Zankl, Y. Haxhimusa, A. Ion, in:, 34th DAGM and 36th OAGM Symposium, Springer,
    2012, pp. 11–20.
conference:
  end_date: 2012-08-31
  location: Graz, Austria
  name: Pattern Recognition
  start_date: 2012-08-28
date_created: 2018-12-11T12:00:37Z
date_published: 2012-08-01T00:00:00Z
date_updated: 2025-05-20T07:21:42Z
day: '01'
department:
- _id: HeEd
doi: 10.1007/978-3-642-32717-9_2
intvolume: '      7476'
language:
- iso: eng
month: '08'
oa_version: None
page: 11 - 20
publication: 34th DAGM and 36th OAGM Symposium
publication_identifier:
  eisbn:
  - '9783642327179'
  eissn:
  - 1611-3349
publication_status: published
publisher: Springer
publist_id: '3737'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Interactive labeling of image segmentation hierarchies
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 7476
year: '2012'
...
---
_id: '3115'
abstract:
- lang: eng
  text: 'We consider the offset-deconstruction problem: Given a polygonal shape Q
    with n vertices, can it be expressed, up to a tolerance ε in Hausdorff distance,
    as the Minkowski sum of another polygonal shape P with a disk of fixed radius?
    If it does, we also seek a preferably simple-looking solution P; then, P''s offset
    constitutes an accurate, vertex-reduced, and smoothened approximation of Q. We
    give an O(nlogn)-time exact decision algorithm that handles any polygonal shape,
    assuming the real-RAM model of computation. A variant of the algorithm, which
    we have implemented using the cgal library, is based on rational arithmetic and
    answers the same deconstruction problem up to an uncertainty parameter δ its running
    time additionally depends on δ. If the input shape is found to be approximable,
    this algorithm also computes an approximate solution for the problem. It also
    allows us to solve parameter-optimization problems induced by the offset-deconstruction
    problem. For convex shapes, the complexity of the exact decision algorithm drops
    to O(n), which is also the time required to compute a solution P with at most
    one more vertex than a vertex-minimal one.'
acknowledgement: "We thank Eyal Flato (Plataine Ltd.) for raising the offset-deconstruction
  problem in connection with wood cutting. We also thank Tim Bretl (UIUC) for suggesting
  the digital-pen offset-deconstruction problem. This work has been supported in part
  by the Israel Science Foundation (grant no. 1102/11), by the German–Israeli Foundation
  (grant no. 969/07), by the Hermann Minkowski–Minerva Center for Geometry at Tel
  Aviv University, and by the EU Project under Contract No. 255827 (CGL—Computational
  Geometry Learning).\r\n"
article_processing_charge: No
arxiv: 1
author:
- first_name: Eric
  full_name: Berberich, Eric
  last_name: Berberich
- first_name: Dan
  full_name: Halperin, Dan
  last_name: Halperin
- first_name: Michael
  full_name: Kerber, Michael
  id: 36E4574A-F248-11E8-B48F-1D18A9856A87
  last_name: Kerber
  orcid: 0000-0002-8030-9299
- first_name: Roza
  full_name: Pogalnikova, Roza
  last_name: Pogalnikova
citation:
  ama: Berberich E, Halperin D, Kerber M, Pogalnikova R. Deconstructing approximate
    offsets. <i>Discrete &#38; Computational Geometry</i>. 2012;48(4):964-989. doi:<a
    href="https://doi.org/10.1007/s00454-012-9441-5">10.1007/s00454-012-9441-5</a>
  apa: Berberich, E., Halperin, D., Kerber, M., &#38; Pogalnikova, R. (2012). Deconstructing
    approximate offsets. <i>Discrete &#38; Computational Geometry</i>. Springer. <a
    href="https://doi.org/10.1007/s00454-012-9441-5">https://doi.org/10.1007/s00454-012-9441-5</a>
  chicago: Berberich, Eric, Dan Halperin, Michael Kerber, and Roza Pogalnikova. “Deconstructing
    Approximate Offsets.” <i>Discrete &#38; Computational Geometry</i>. Springer,
    2012. <a href="https://doi.org/10.1007/s00454-012-9441-5">https://doi.org/10.1007/s00454-012-9441-5</a>.
  ieee: E. Berberich, D. Halperin, M. Kerber, and R. Pogalnikova, “Deconstructing
    approximate offsets,” <i>Discrete &#38; Computational Geometry</i>, vol. 48, no.
    4. Springer, pp. 964–989, 2012.
  ista: Berberich E, Halperin D, Kerber M, Pogalnikova R. 2012. Deconstructing approximate
    offsets. Discrete &#38; Computational Geometry. 48(4), 964–989.
  mla: Berberich, Eric, et al. “Deconstructing Approximate Offsets.” <i>Discrete &#38;
    Computational Geometry</i>, vol. 48, no. 4, Springer, 2012, pp. 964–89, doi:<a
    href="https://doi.org/10.1007/s00454-012-9441-5">10.1007/s00454-012-9441-5</a>.
  short: E. Berberich, D. Halperin, M. Kerber, R. Pogalnikova, Discrete &#38; Computational
    Geometry 48 (2012) 964–989.
corr_author: '1'
date_created: 2018-12-11T12:01:28Z
date_published: 2012-12-01T00:00:00Z
date_updated: 2025-09-30T08:01:36Z
day: '01'
department:
- _id: HeEd
doi: 10.1007/s00454-012-9441-5
external_id:
  arxiv:
  - '1109.2158'
  isi:
  - '000311503200006'
intvolume: '        48'
isi: 1
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://arxiv.org/abs/1109.2158
month: '12'
oa: 1
oa_version: Preprint
page: 964 - 989
publication: Discrete & Computational Geometry
publication_status: published
publisher: Springer
publist_id: '3584'
quality_controlled: '1'
related_material:
  record:
  - id: '3329'
    relation: earlier_version
    status: public
scopus_import: '1'
status: public
title: Deconstructing approximate offsets
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 48
year: '2012'
...
---
_id: '3120'
abstract:
- lang: eng
  text: We introduce a strategy based on Kustin-Miller unprojection that allows us
    to construct many hundreds of Gorenstein codimension 4 ideals with 9 × 16 resolutions
    (that is, nine equations and sixteen first syzygies). Our two basic games are
    called Tom and Jerry; the main application is the biregular construction of most
    of the anticanonically polarised Mori Fano 3-folds of Altinok's thesis. There
    are 115 cases whose numerical data (in effect, the Hilbert series) allow a Type
    I projection. In every case, at least one Tom and one Jerry construction works,
    providing at least two deformation families of quasismooth Fano 3-folds having
    the same numerics but different topology. © 2012 Copyright Foundation Compositio
    Mathematica.
acknowledgement: This research is supported by the Korean Government WCU Grant R33-2008-000-10101-0.
article_processing_charge: No
arxiv: 1
author:
- first_name: Gavin
  full_name: Brown, Gavin
  last_name: Brown
- first_name: Michael
  full_name: Kerber, Michael
  id: 36E4574A-F248-11E8-B48F-1D18A9856A87
  last_name: Kerber
  orcid: 0000-0002-8030-9299
- first_name: Miles
  full_name: Reid, Miles
  last_name: Reid
citation:
  ama: Brown G, Kerber M, Reid M. Fano 3 folds in codimension 4 Tom and Jerry Part
    I. <i>Compositio Mathematica</i>. 2012;148(4):1171-1194. doi:<a href="https://doi.org/10.1112/S0010437X11007226">10.1112/S0010437X11007226</a>
  apa: Brown, G., Kerber, M., &#38; Reid, M. (2012). Fano 3 folds in codimension 4
    Tom and Jerry Part I. <i>Compositio Mathematica</i>. Cambridge University Press.
    <a href="https://doi.org/10.1112/S0010437X11007226">https://doi.org/10.1112/S0010437X11007226</a>
  chicago: Brown, Gavin, Michael Kerber, and Miles Reid. “Fano 3 Folds in Codimension
    4 Tom and Jerry Part I.” <i>Compositio Mathematica</i>. Cambridge University Press,
    2012. <a href="https://doi.org/10.1112/S0010437X11007226">https://doi.org/10.1112/S0010437X11007226</a>.
  ieee: G. Brown, M. Kerber, and M. Reid, “Fano 3 folds in codimension 4 Tom and Jerry
    Part I,” <i>Compositio Mathematica</i>, vol. 148, no. 4. Cambridge University
    Press, pp. 1171–1194, 2012.
  ista: Brown G, Kerber M, Reid M. 2012. Fano 3 folds in codimension 4 Tom and Jerry
    Part I. Compositio Mathematica. 148(4), 1171–1194.
  mla: Brown, Gavin, et al. “Fano 3 Folds in Codimension 4 Tom and Jerry Part I.”
    <i>Compositio Mathematica</i>, vol. 148, no. 4, Cambridge University Press, 2012,
    pp. 1171–94, doi:<a href="https://doi.org/10.1112/S0010437X11007226">10.1112/S0010437X11007226</a>.
  short: G. Brown, M. Kerber, M. Reid, Compositio Mathematica 148 (2012) 1171–1194.
date_created: 2018-12-11T12:01:30Z
date_published: 2012-07-01T00:00:00Z
date_updated: 2025-09-30T07:59:55Z
day: '01'
department:
- _id: HeEd
doi: 10.1112/S0010437X11007226
external_id:
  arxiv:
  - '1009.4313'
  isi:
  - '000307176400007'
intvolume: '       148'
isi: 1
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://arxiv.org/abs/1009.4313
month: '07'
oa: 1
oa_version: Preprint
page: 1171 - 1194
publication: Compositio Mathematica
publication_status: published
publisher: Cambridge University Press
publist_id: '3579'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Fano 3 folds in codimension 4 Tom and Jerry Part I
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 148
year: '2012'
...
---
_id: '3127'
abstract:
- lang: eng
  text: "When searching for characteristic subpatterns in potentially noisy graph
    data, it appears self-evident that having multiple observations would be better
    than having just one. However, it turns out that the inconsistencies introduced
    when different graph instances have different edge sets pose a serious challenge.
    In this work we address this challenge for the problem of finding maximum weighted
    cliques.\r\n    We introduce the concept of most persistent soft-clique. This
    is subset of vertices, that 1) is almost fully or at least densely connected,
    2) occurs in all or almost all graph instances, and 3) has the maximum weight.
    We present a measure of clique-ness, that essentially counts the number of edge
    missing to make a subset of vertices into a clique. With this measure, we show
    that the problem of finding the most persistent soft-clique problem can be cast
    either as: a) a max-min two person game optimization problem, or b) a min-min
    soft margin optimization problem. Both formulations lead to the same solution
    when using a partial Lagrangian method to solve the optimization problems. By
    experiments on synthetic data and on real social network data, we show that the
    proposed method is able to reliably find soft cliques in graph data, even if that
    is distorted by random noise or unreliable observations."
article_processing_charge: No
arxiv: 1
author:
- first_name: Novi
  full_name: Quadrianto, Novi
  last_name: Quadrianto
- first_name: Christoph
  full_name: Lampert, Christoph
  id: 40C20FD2-F248-11E8-B48F-1D18A9856A87
  last_name: Lampert
  orcid: 0000-0001-8622-7887
- first_name: Chao
  full_name: Chen, Chao
  id: 3E92416E-F248-11E8-B48F-1D18A9856A87
  last_name: Chen
citation:
  ama: 'Quadrianto N, Lampert C, Chen C. The most persistent soft-clique in a set
    of sampled graphs. In: <i>Proceedings of the 29th International Conference on
    Machine Learning</i>. ML Research Press; 2012:211-218.'
  apa: 'Quadrianto, N., Lampert, C., &#38; Chen, C. (2012). The most persistent soft-clique
    in a set of sampled graphs. In <i>Proceedings of the 29th International Conference
    on Machine Learning</i> (pp. 211–218). Edinburgh, United Kingdom: ML Research
    Press.'
  chicago: Quadrianto, Novi, Christoph Lampert, and Chao Chen. “The Most Persistent
    Soft-Clique in a Set of Sampled Graphs.” In <i>Proceedings of the 29th International
    Conference on Machine Learning</i>, 211–18. ML Research Press, 2012.
  ieee: N. Quadrianto, C. Lampert, and C. Chen, “The most persistent soft-clique in
    a set of sampled graphs,” in <i>Proceedings of the 29th International Conference
    on Machine Learning</i>, Edinburgh, United Kingdom, 2012, pp. 211–218.
  ista: 'Quadrianto N, Lampert C, Chen C. 2012. The most persistent soft-clique in
    a set of sampled graphs. Proceedings of the 29th International Conference on Machine
    Learning. ICML: International Conference on Machine Learning, 211–218.'
  mla: Quadrianto, Novi, et al. “The Most Persistent Soft-Clique in a Set of Sampled
    Graphs.” <i>Proceedings of the 29th International Conference on Machine Learning</i>,
    ML Research Press, 2012, pp. 211–18.
  short: N. Quadrianto, C. Lampert, C. Chen, in:, Proceedings of the 29th International
    Conference on Machine Learning, ML Research Press, 2012, pp. 211–218.
conference:
  end_date: 2012-07-01
  location: Edinburgh, United Kingdom
  name: 'ICML: International Conference on Machine Learning'
  start_date: 2012-06-26
date_created: 2018-12-11T12:01:33Z
date_published: 2012-06-01T00:00:00Z
date_updated: 2025-06-11T08:09:42Z
day: '01'
department:
- _id: ChLa
- _id: HeEd
external_id:
  arxiv:
  - '1206.4652'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://arxiv.org/abs/1206.4652
month: '06'
oa: 1
oa_version: Preprint
page: 211-218
publication: Proceedings of the 29th International Conference on Machine Learning
publication_status: published
publisher: ML Research Press
publist_id: '3572'
quality_controlled: '1'
scopus_import: '1'
status: public
title: The most persistent soft-clique in a set of sampled graphs
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2012'
...
---
_id: '3129'
abstract:
- lang: eng
  text: "Let K be a simplicial complex and g the rank of its p-th homology group Hp(K)
    defined with ℤ2 coefficients. We show that we can compute a basis H of Hp(K) and
    annotate each p-simplex of K with a binary vector of length g with the following
    property: the annotations, summed over all p-simplices in any p-cycle z, provide
    the coordinate vector of the homology class [z] in the basis H. The basis and
    the annotations for all simplices can be computed in O(n ω ) time, where n is
    the size of K and ω &lt; 2.376 is a quantity so that two n×n matrices can be multiplied
    in O(n ω ) time. The precomputed annotations permit answering queries about the
    independence or the triviality of p-cycles efficiently.\r\n\r\nUsing annotations
    of edges in 2-complexes, we derive better algorithms for computing optimal basis
    and optimal homologous cycles in 1 - dimensional homology. Specifically, for computing
    an optimal basis of H1(K) , we improve the previously known time complexity from
    O(n 4) to O(n ω  + n 2 g ω − 1). Here n denotes the size of the 2-skeleton of
    K and g the rank of H1(K) . Computing an optimal cycle homologous to a given 1-cycle
    is NP-hard even for surfaces and an algorithm taking 2 O(g) nlogn time is known
    for surfaces. We extend this algorithm to work with arbitrary 2-complexes in O(n
    ω ) + 2 O(g) n 2logn time using annotations.\r\n"
acknowledgement: Research was partially supported by the Slovenian Research Agency,
  program P1-0297 and NSF grant CCF 1064416.
alternative_title:
- LNCS
article_processing_charge: No
arxiv: 1
author:
- first_name: Oleksiy
  full_name: Busaryev, Oleksiy
  last_name: Busaryev
- first_name: Sergio
  full_name: Cabello, Sergio
  last_name: Cabello
- first_name: Chao
  full_name: Chen, Chao
  id: 3E92416E-F248-11E8-B48F-1D18A9856A87
  last_name: Chen
- first_name: Tamal
  full_name: Dey, Tamal
  last_name: Dey
- first_name: Yusu
  full_name: Wang, Yusu
  last_name: Wang
citation:
  ama: 'Busaryev O, Cabello S, Chen C, Dey T, Wang Y. Annotating simplices with a
    homology basis and its applications. In: Vol 7357. Springer; 2012:189-200. doi:<a
    href="https://doi.org/10.1007/978-3-642-31155-0_17">10.1007/978-3-642-31155-0_17</a>'
  apa: 'Busaryev, O., Cabello, S., Chen, C., Dey, T., &#38; Wang, Y. (2012). Annotating
    simplices with a homology basis and its applications (Vol. 7357, pp. 189–200).
    Presented at the SWAT: Symposium and Workshops on Algorithm Theory, Helsinki,
    Finland: Springer. <a href="https://doi.org/10.1007/978-3-642-31155-0_17">https://doi.org/10.1007/978-3-642-31155-0_17</a>'
  chicago: Busaryev, Oleksiy, Sergio Cabello, Chao Chen, Tamal Dey, and Yusu Wang.
    “Annotating Simplices with a Homology Basis and Its Applications,” 7357:189–200.
    Springer, 2012. <a href="https://doi.org/10.1007/978-3-642-31155-0_17">https://doi.org/10.1007/978-3-642-31155-0_17</a>.
  ieee: 'O. Busaryev, S. Cabello, C. Chen, T. Dey, and Y. Wang, “Annotating simplices
    with a homology basis and its applications,” presented at the SWAT: Symposium
    and Workshops on Algorithm Theory, Helsinki, Finland, 2012, vol. 7357, pp. 189–200.'
  ista: 'Busaryev O, Cabello S, Chen C, Dey T, Wang Y. 2012. Annotating simplices
    with a homology basis and its applications. SWAT: Symposium and Workshops on Algorithm
    Theory, LNCS, vol. 7357, 189–200.'
  mla: Busaryev, Oleksiy, et al. <i>Annotating Simplices with a Homology Basis and
    Its Applications</i>. Vol. 7357, Springer, 2012, pp. 189–200, doi:<a href="https://doi.org/10.1007/978-3-642-31155-0_17">10.1007/978-3-642-31155-0_17</a>.
  short: O. Busaryev, S. Cabello, C. Chen, T. Dey, Y. Wang, in:, Springer, 2012, pp.
    189–200.
conference:
  end_date: 2012-07-06
  location: Helsinki, Finland
  name: 'SWAT: Symposium and Workshops on Algorithm Theory'
  start_date: 2012-07-04
date_created: 2018-12-11T12:01:33Z
date_published: 2012-06-19T00:00:00Z
date_updated: 2025-06-26T08:59:21Z
day: '19'
department:
- _id: HeEd
doi: 10.1007/978-3-642-31155-0_17
external_id:
  arxiv:
  - '1107.3793'
intvolume: '      7357'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://arxiv.org/abs/1107.3793
month: '06'
oa: 1
oa_version: Preprint
page: 189 - 200
publication_status: published
publisher: Springer
publist_id: '3569'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Annotating simplices with a homology basis and its applications
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 7357
year: '2012'
...
---
_id: '3133'
abstract:
- lang: eng
  text: 'This note contributes to the point calculus of persistent homology by extending
    Alexander duality from spaces to real-valued functions. Given a perfect Morse
    function f: S n+1 →[0, 1 and a decomposition S n+1 = U ∪ V into two (n + 1)-manifolds
    with common boundary M, we prove elementary relationships between the persistence
    diagrams of f restricted to U, to V, and to M. '
acknowledgement: "his research is partially supported by the National Science Foundation
  (NSF) under grant DBI-0820624, the European Science Foundation under the Research
  Networking Programme, and the Russian Government Project 11.G34.31.0053.\r\nThe
  authors thank an anonymous referee for suggesting the simplified proof of the Contravariant
  PE Theorem given in this paper. They also thank Frederick Cohen, Yuriy Mileyko and
  Amit Patel for helpful discussions."
article_processing_charge: No
arxiv: 1
author:
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
- first_name: Michael
  full_name: Kerber, Michael
  id: 36E4574A-F248-11E8-B48F-1D18A9856A87
  last_name: Kerber
  orcid: 0000-0002-8030-9299
citation:
  ama: 'Edelsbrunner H, Kerber M. Alexander duality for functions: The persistent
    behavior of land and water and shore. In: <i>Proceedings of the Twenty-Eighth
    Annual Symposium on Computational Geometry </i>. ACM; 2012:249-258. doi:<a href="https://doi.org/10.1145/2261250.2261287">10.1145/2261250.2261287</a>'
  apa: 'Edelsbrunner, H., &#38; Kerber, M. (2012). Alexander duality for functions:
    The persistent behavior of land and water and shore. In <i>Proceedings of the
    twenty-eighth annual symposium on Computational geometry </i> (pp. 249–258). Chapel
    Hill, NC, USA: ACM. <a href="https://doi.org/10.1145/2261250.2261287">https://doi.org/10.1145/2261250.2261287</a>'
  chicago: 'Edelsbrunner, Herbert, and Michael Kerber. “Alexander Duality for Functions:
    The Persistent Behavior of Land and Water and Shore.” In <i>Proceedings of the
    Twenty-Eighth Annual Symposium on Computational Geometry </i>, 249–58. ACM, 2012.
    <a href="https://doi.org/10.1145/2261250.2261287">https://doi.org/10.1145/2261250.2261287</a>.'
  ieee: 'H. Edelsbrunner and M. Kerber, “Alexander duality for functions: The persistent
    behavior of land and water and shore,” in <i>Proceedings of the twenty-eighth
    annual symposium on Computational geometry </i>, Chapel Hill, NC, USA, 2012, pp.
    249–258.'
  ista: 'Edelsbrunner H, Kerber M. 2012. Alexander duality for functions: The persistent
    behavior of land and water and shore. Proceedings of the twenty-eighth annual
    symposium on Computational geometry . SCG: Symposium on Computational Geometry,
    249–258.'
  mla: 'Edelsbrunner, Herbert, and Michael Kerber. “Alexander Duality for Functions:
    The Persistent Behavior of Land and Water and Shore.” <i>Proceedings of the Twenty-Eighth
    Annual Symposium on Computational Geometry </i>, ACM, 2012, pp. 249–58, doi:<a
    href="https://doi.org/10.1145/2261250.2261287">10.1145/2261250.2261287</a>.'
  short: H. Edelsbrunner, M. Kerber, in:, Proceedings of the Twenty-Eighth Annual
    Symposium on Computational Geometry , ACM, 2012, pp. 249–258.
conference:
  end_date: 2012-06-20
  location: Chapel Hill, NC, USA
  name: 'SCG: Symposium on Computational Geometry'
  start_date: 2012-06-17
corr_author: '1'
date_created: 2018-12-11T12:01:35Z
date_published: 2012-06-20T00:00:00Z
date_updated: 2025-06-11T08:10:04Z
day: '20'
department:
- _id: HeEd
doi: 10.1145/2261250.2261287
external_id:
  arxiv:
  - '1109.5052'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://arxiv.org/abs/1109.5052
month: '06'
oa: 1
oa_version: Preprint
page: 249 - 258
publication: 'Proceedings of the twenty-eighth annual symposium on Computational geometry '
publication_status: published
publisher: ACM
publist_id: '3564'
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Alexander duality for functions: The persistent behavior of land and water
  and shore'
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2012'
...
---
_id: '3134'
abstract:
- lang: eng
  text: 'It has been an open question whether the sum of finitely many isotropic Gaussian
    kernels in n ≥ 2 dimensions can have more modes than kernels, until in 2003 Carreira-Perpiñán
    and Williams exhibited n +1 isotropic Gaussian kernels in ℝ n with n + 2 modes.
    We give a detailed analysis of this example, showing that it has exponentially
    many critical points and that the resilience of the extra mode grows like √n.
    In addition, we exhibit finite configurations of isotropic Gaussian kernels with
    superlinearly many modes. '
acknowledgement: This research is partially supported by the National Science Foun-
  dation (NSF) under grant DBI-0820624, by the European Science Foundation under the
  Research Networking Programme, and the Russian Government Project 11.G34.31.0053.
author:
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
- first_name: Brittany
  full_name: Fasy, Brittany
  last_name: Fasy
- first_name: Günter
  full_name: Rote, Günter
  last_name: Rote
citation:
  ama: 'Edelsbrunner H, Fasy B, Rote G. Add isotropic Gaussian kernels at own risk:
    More and more resilient modes in higher dimensions. In: <i>Proceedings of the
    Twenty-Eighth Annual Symposium on Computational Geometry </i>. ACM; 2012:91-100.
    doi:<a href="https://doi.org/10.1145/2261250.2261265">10.1145/2261250.2261265</a>'
  apa: 'Edelsbrunner, H., Fasy, B., &#38; Rote, G. (2012). Add isotropic Gaussian
    kernels at own risk: More and more resilient modes in higher dimensions. In <i>Proceedings
    of the twenty-eighth annual symposium on Computational geometry </i> (pp. 91–100).
    Chapel Hill, NC, USA: ACM. <a href="https://doi.org/10.1145/2261250.2261265">https://doi.org/10.1145/2261250.2261265</a>'
  chicago: 'Edelsbrunner, Herbert, Brittany Fasy, and Günter Rote. “Add Isotropic
    Gaussian Kernels at Own Risk: More and More Resilient Modes in Higher Dimensions.”
    In <i>Proceedings of the Twenty-Eighth Annual Symposium on Computational Geometry
    </i>, 91–100. ACM, 2012. <a href="https://doi.org/10.1145/2261250.2261265">https://doi.org/10.1145/2261250.2261265</a>.'
  ieee: 'H. Edelsbrunner, B. Fasy, and G. Rote, “Add isotropic Gaussian kernels at
    own risk: More and more resilient modes in higher dimensions,” in <i>Proceedings
    of the twenty-eighth annual symposium on Computational geometry </i>, Chapel Hill,
    NC, USA, 2012, pp. 91–100.'
  ista: 'Edelsbrunner H, Fasy B, Rote G. 2012. Add isotropic Gaussian kernels at own
    risk: More and more resilient modes in higher dimensions. Proceedings of the twenty-eighth
    annual symposium on Computational geometry . SCG: Symposium on Computational Geometry,
    91–100.'
  mla: 'Edelsbrunner, Herbert, et al. “Add Isotropic Gaussian Kernels at Own Risk:
    More and More Resilient Modes in Higher Dimensions.” <i>Proceedings of the Twenty-Eighth
    Annual Symposium on Computational Geometry </i>, ACM, 2012, pp. 91–100, doi:<a
    href="https://doi.org/10.1145/2261250.2261265">10.1145/2261250.2261265</a>.'
  short: H. Edelsbrunner, B. Fasy, G. Rote, in:, Proceedings of the Twenty-Eighth
    Annual Symposium on Computational Geometry , ACM, 2012, pp. 91–100.
conference:
  end_date: 2012-06-20
  location: Chapel Hill, NC, USA
  name: 'SCG: Symposium on Computational Geometry'
  start_date: 2012-06-17
date_created: 2018-12-11T12:01:35Z
date_published: 2012-06-20T00:00:00Z
date_updated: 2025-09-29T14:02:00Z
day: '20'
department:
- _id: HeEd
doi: 10.1145/2261250.2261265
language:
- iso: eng
month: '06'
oa_version: None
page: 91 - 100
publication: 'Proceedings of the twenty-eighth annual symposium on Computational geometry '
publication_status: published
publisher: ACM
publist_id: '3563'
quality_controlled: '1'
related_material:
  record:
  - id: '2815'
    relation: later_version
    status: public
scopus_import: 1
status: public
title: 'Add isotropic Gaussian kernels at own risk: More and more resilient modes
  in higher dimensions'
type: conference
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
year: '2012'
...
---
_id: '3159'
abstract:
- lang: eng
  text: The structure of hierarchical networks in biological and physical systems
    has long been characterized using the Horton-Strahler ordering scheme. The scheme
    assigns an integer order to each edge in the network based on the topology of
    branching such that the order increases from distal parts of the network (e.g.,
    mountain streams or capillaries) to the &quot;root&quot; of the network (e.g.,
    the river outlet or the aorta). However, Horton-Strahler ordering cannot be applied
    to networks with loops because they they create a contradiction in the edge ordering
    in terms of which edge precedes another in the hierarchy. Here, we present a generalization
    of the Horton-Strahler order to weighted planar reticular networks, where weights
    are assumed to correlate with the importance of network edges, e.g., weights estimated
    from edge widths may correlate to flow capacity. Our method assigns hierarchical
    levels not only to edges of the network, but also to its loops, and classifies
    the edges into reticular edges, which are responsible for loop formation, and
    tree edges. In addition, we perform a detailed and rigorous theoretical analysis
    of the sensitivity of the hierarchical levels to weight perturbations. In doing
    so, we show that the ordering of the reticular edges is more robust to noise in
    weight estimation than is the ordering of the tree edges. We discuss applications
    of this generalized Horton-Strahler ordering to the study of leaf venation and
    other biological networks.
acknowledgement: "his work was supported by the National Science Foundation Plant
  Genome Research Program (grant 0820624 to H.E. and J.S.W.), the Defense Advanced
  Projects Research Agency (grant HR0011-09-1-0055 to H.E. and J.S.W.), and the European
  Science Foundation (under the Research Networking Programme on “Applied and Computational
  Algebraic Topology” run by H.E.). Joshua S. Weitz, Ph.D., holds a Career Award at
  the Scientific Interface from the Burroughs Wellcome Fund.\r\n\r\n\r\n\r\nDuring
  preparation of this manuscript the authors became aware of a related work by Katifori
  and Magnasco (arXiv:1110.1412v1), concurrently submitted and accepted for publication
  in PLoS ONE."
article_number: e36715
article_processing_charge: No
author:
- first_name: Yuriy
  full_name: Mileyko, Yuriy
  last_name: Mileyko
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
- first_name: Charles
  full_name: Price, Charles
  last_name: Price
- first_name: Joshua
  full_name: Weitz, Joshua
  last_name: Weitz
citation:
  ama: Mileyko Y, Edelsbrunner H, Price C, Weitz J. Hierarchical ordering of reticular
    networks. <i>PLoS One</i>. 2012;7(6). doi:<a href="https://doi.org/10.1371/journal.pone.0036715">10.1371/journal.pone.0036715</a>
  apa: Mileyko, Y., Edelsbrunner, H., Price, C., &#38; Weitz, J. (2012). Hierarchical
    ordering of reticular networks. <i>PLoS One</i>. Public Library of Science. <a
    href="https://doi.org/10.1371/journal.pone.0036715">https://doi.org/10.1371/journal.pone.0036715</a>
  chicago: Mileyko, Yuriy, Herbert Edelsbrunner, Charles Price, and Joshua Weitz.
    “Hierarchical Ordering of Reticular Networks.” <i>PLoS One</i>. Public Library
    of Science, 2012. <a href="https://doi.org/10.1371/journal.pone.0036715">https://doi.org/10.1371/journal.pone.0036715</a>.
  ieee: Y. Mileyko, H. Edelsbrunner, C. Price, and J. Weitz, “Hierarchical ordering
    of reticular networks,” <i>PLoS One</i>, vol. 7, no. 6. Public Library of Science,
    2012.
  ista: Mileyko Y, Edelsbrunner H, Price C, Weitz J. 2012. Hierarchical ordering of
    reticular networks. PLoS One. 7(6), e36715.
  mla: Mileyko, Yuriy, et al. “Hierarchical Ordering of Reticular Networks.” <i>PLoS
    One</i>, vol. 7, no. 6, e36715, Public Library of Science, 2012, doi:<a href="https://doi.org/10.1371/journal.pone.0036715">10.1371/journal.pone.0036715</a>.
  short: Y. Mileyko, H. Edelsbrunner, C. Price, J. Weitz, PLoS One 7 (2012).
date_created: 2018-12-11T12:01:44Z
date_published: 2012-06-06T00:00:00Z
date_updated: 2025-09-30T07:53:26Z
day: '06'
ddc:
- '510'
department:
- _id: HeEd
doi: 10.1371/journal.pone.0036715
external_id:
  isi:
  - '000305348400006'
file:
- access_level: open_access
  checksum: 515a98ad72e470752f03f13663dcaff8
  content_type: application/pdf
  creator: kschuh
  date_created: 2019-02-05T12:38:43Z
  date_updated: 2020-07-14T12:46:01Z
  file_id: '5922'
  file_name: 2012_PLoS_Mileyko.PDF
  file_size: 541583
  relation: main_file
file_date_updated: 2020-07-14T12:46:01Z
has_accepted_license: '1'
intvolume: '         7'
isi: 1
issue: '6'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
publication: PLoS One
publication_status: published
publisher: Public Library of Science
publist_id: '3530'
pubrep_id: '385'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Hierarchical ordering of reticular networks
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 7
year: '2012'
...
---
_id: '3256'
abstract:
- lang: eng
  text: We use a distortion to define the dual complex of a cubical subdivision of
    ℝ n as an n-dimensional subcomplex of the nerve of the set of n-cubes. Motivated
    by the topological analysis of high-dimensional digital image data, we consider
    such subdivisions defined by generalizations of quad- and oct-trees to n dimensions.
    Assuming the subdivision is balanced, we show that mapping each vertex to the
    center of the corresponding n-cube gives a geometric realization of the dual complex
    in ℝ n.
acknowledgement: This research is partially supported by the Defense Advanced Research
  Projects Agency (DARPA) under grants HR0011-05-1-0057 and HR0011-09-0065 as well
  as the National Science Foundation (NSF) under grant DBI-0820624.
article_processing_charge: No
author:
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
- first_name: Michael
  full_name: Kerber, Michael
  id: 36E4574A-F248-11E8-B48F-1D18A9856A87
  last_name: Kerber
  orcid: 0000-0002-8030-9299
citation:
  ama: Edelsbrunner H, Kerber M. Dual complexes of cubical subdivisions of ℝn. <i>Discrete
    &#38; Computational Geometry</i>. 2012;47(2):393-414. doi:<a href="https://doi.org/10.1007/s00454-011-9382-4">10.1007/s00454-011-9382-4</a>
  apa: Edelsbrunner, H., &#38; Kerber, M. (2012). Dual complexes of cubical subdivisions
    of ℝn. <i>Discrete &#38; Computational Geometry</i>. Springer. <a href="https://doi.org/10.1007/s00454-011-9382-4">https://doi.org/10.1007/s00454-011-9382-4</a>
  chicago: Edelsbrunner, Herbert, and Michael Kerber. “Dual Complexes of Cubical Subdivisions
    of ℝn.” <i>Discrete &#38; Computational Geometry</i>. Springer, 2012. <a href="https://doi.org/10.1007/s00454-011-9382-4">https://doi.org/10.1007/s00454-011-9382-4</a>.
  ieee: H. Edelsbrunner and M. Kerber, “Dual complexes of cubical subdivisions of
    ℝn,” <i>Discrete &#38; Computational Geometry</i>, vol. 47, no. 2. Springer, pp.
    393–414, 2012.
  ista: Edelsbrunner H, Kerber M. 2012. Dual complexes of cubical subdivisions of
    ℝn. Discrete &#38; Computational Geometry. 47(2), 393–414.
  mla: Edelsbrunner, Herbert, and Michael Kerber. “Dual Complexes of Cubical Subdivisions
    of ℝn.” <i>Discrete &#38; Computational Geometry</i>, vol. 47, no. 2, Springer,
    2012, pp. 393–414, doi:<a href="https://doi.org/10.1007/s00454-011-9382-4">10.1007/s00454-011-9382-4</a>.
  short: H. Edelsbrunner, M. Kerber, Discrete &#38; Computational Geometry 47 (2012)
    393–414.
corr_author: '1'
date_created: 2018-12-11T12:02:17Z
date_published: 2012-03-01T00:00:00Z
date_updated: 2025-09-30T07:43:46Z
day: '01'
ddc:
- '000'
department:
- _id: HeEd
doi: 10.1007/s00454-011-9382-4
external_id:
  isi:
  - '000299057200010'
file:
- access_level: open_access
  checksum: 76486f3b2c9e7fd81342f3832ca387e7
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:08:15Z
  date_updated: 2020-07-14T12:46:05Z
  file_id: '4675'
  file_name: IST-2016-543-v1+1_2012-J-08-HierarchyCubeComplex.pdf
  file_size: 203636
  relation: main_file
file_date_updated: 2020-07-14T12:46:05Z
has_accepted_license: '1'
intvolume: '        47'
isi: 1
issue: '2'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Submitted Version
page: 393 - 414
publication: Discrete & Computational Geometry
publication_status: published
publisher: Springer
publist_id: '3398'
pubrep_id: '543'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Dual complexes of cubical subdivisions of ℝn
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 47
year: '2012'
...
---
_id: '3265'
abstract:
- lang: eng
  text: We propose a mid-level statistical model for image segmentation that composes
    multiple figure-ground hypotheses (FG) obtained by applying constraints at different
    locations and scales, into larger interpretations (tilings) of the entire image.
    Inference is cast as optimization over sets of maximal cliques sampled from a
    graph connecting all non-overlapping figure-ground segment hypotheses. Potential
    functions over cliques combine unary, Gestalt-based figure qualities, and pairwise
    compatibilities among spatially neighboring segments, constrained by T-junctions
    and the boundary interface statistics of real scenes. Learning the model parameters
    is based on maximum likelihood, alternating between sampling image tilings and
    optimizing their potential function parameters. State of the art results are reported
    on the Berkeley and Stanford segmentation datasets, as well as VOC2009, where
    a 28% improvement was achieved.
article_number: '6126486'
author:
- first_name: Adrian
  full_name: Ion, Adrian
  id: 29F89302-F248-11E8-B48F-1D18A9856A87
  last_name: Ion
- first_name: Joao
  full_name: Carreira, Joao
  last_name: Carreira
- first_name: Cristian
  full_name: Sminchisescu, Cristian
  last_name: Sminchisescu
citation:
  ama: 'Ion A, Carreira J, Sminchisescu C. Image segmentation by figure-ground composition
    into maximal cliques. In: IEEE; 2012. doi:<a href="https://doi.org/10.1109/ICCV.2011.6126486">10.1109/ICCV.2011.6126486</a>'
  apa: 'Ion, A., Carreira, J., &#38; Sminchisescu, C. (2012). Image segmentation by
    figure-ground composition into maximal cliques. Presented at the ICCV: International
    Conference on Computer Vision, Barcelona, Spain: IEEE. <a href="https://doi.org/10.1109/ICCV.2011.6126486">https://doi.org/10.1109/ICCV.2011.6126486</a>'
  chicago: Ion, Adrian, Joao Carreira, and Cristian Sminchisescu. “Image Segmentation
    by Figure-Ground Composition into Maximal Cliques.” IEEE, 2012. <a href="https://doi.org/10.1109/ICCV.2011.6126486">https://doi.org/10.1109/ICCV.2011.6126486</a>.
  ieee: 'A. Ion, J. Carreira, and C. Sminchisescu, “Image segmentation by figure-ground
    composition into maximal cliques,” presented at the ICCV: International Conference
    on Computer Vision, Barcelona, Spain, 2012.'
  ista: 'Ion A, Carreira J, Sminchisescu C. 2012. Image segmentation by figure-ground
    composition into maximal cliques. ICCV: International Conference on Computer Vision,
    6126486.'
  mla: Ion, Adrian, et al. <i>Image Segmentation by Figure-Ground Composition into
    Maximal Cliques</i>. 6126486, IEEE, 2012, doi:<a href="https://doi.org/10.1109/ICCV.2011.6126486">10.1109/ICCV.2011.6126486</a>.
  short: A. Ion, J. Carreira, C. Sminchisescu, in:, IEEE, 2012.
conference:
  end_date: 2011-11-13
  location: Barcelona, Spain
  name: 'ICCV: International Conference on Computer Vision'
  start_date: 2011-11-06
date_created: 2018-12-11T12:02:21Z
date_published: 2012-01-12T00:00:00Z
date_updated: 2021-01-12T07:42:15Z
day: '12'
department:
- _id: HeEd
doi: 10.1109/ICCV.2011.6126486
language:
- iso: eng
month: '01'
oa_version: None
publication_status: published
publisher: IEEE
publist_id: '3382'
quality_controlled: '1'
status: public
title: Image segmentation by figure-ground composition into maximal cliques
type: conference
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
year: '2012'
...
---
_id: '3310'
abstract:
- lang: eng
  text: The theory of persistent homology opens up the possibility to reason about
    topological features of a space or a function quantitatively and in combinatorial
    terms. We refer to this new angle at a classical subject within algebraic topology
    as a point calculus, which we present for the family of interlevel sets of a real-valued
    function. Our account of the subject is expository, devoid of proofs, and written
    for non-experts in algebraic topology.
acknowledgement: Research by the third author is partially supported by the National
  Science Foundation (NSF) under grant DBI-0820624.
article_processing_charge: No
author:
- first_name: Paul
  full_name: Bendich, Paul
  id: 43F6EC54-F248-11E8-B48F-1D18A9856A87
  last_name: Bendich
- first_name: Sergio
  full_name: Cabello, Sergio
  last_name: Cabello
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
citation:
  ama: Bendich P, Cabello S, Edelsbrunner H. A point calculus for interlevel set homology.
    <i>Pattern Recognition Letters</i>. 2012;33(11):1436-1444. doi:<a href="https://doi.org/10.1016/j.patrec.2011.10.007">10.1016/j.patrec.2011.10.007</a>
  apa: Bendich, P., Cabello, S., &#38; Edelsbrunner, H. (2012). A point calculus for
    interlevel set homology. <i>Pattern Recognition Letters</i>. Elsevier. <a href="https://doi.org/10.1016/j.patrec.2011.10.007">https://doi.org/10.1016/j.patrec.2011.10.007</a>
  chicago: Bendich, Paul, Sergio Cabello, and Herbert Edelsbrunner. “A Point Calculus
    for Interlevel Set Homology.” <i>Pattern Recognition Letters</i>. Elsevier, 2012.
    <a href="https://doi.org/10.1016/j.patrec.2011.10.007">https://doi.org/10.1016/j.patrec.2011.10.007</a>.
  ieee: P. Bendich, S. Cabello, and H. Edelsbrunner, “A point calculus for interlevel
    set homology,” <i>Pattern Recognition Letters</i>, vol. 33, no. 11. Elsevier,
    pp. 1436–1444, 2012.
  ista: Bendich P, Cabello S, Edelsbrunner H. 2012. A point calculus for interlevel
    set homology. Pattern Recognition Letters. 33(11), 1436–1444.
  mla: Bendich, Paul, et al. “A Point Calculus for Interlevel Set Homology.” <i>Pattern
    Recognition Letters</i>, vol. 33, no. 11, Elsevier, 2012, pp. 1436–44, doi:<a
    href="https://doi.org/10.1016/j.patrec.2011.10.007">10.1016/j.patrec.2011.10.007</a>.
  short: P. Bendich, S. Cabello, H. Edelsbrunner, Pattern Recognition Letters 33 (2012)
    1436–1444.
date_created: 2018-12-11T12:02:36Z
date_published: 2012-08-01T00:00:00Z
date_updated: 2025-09-30T07:39:47Z
day: '01'
ddc:
- '000'
department:
- _id: HeEd
doi: 10.1016/j.patrec.2011.10.007
external_id:
  isi:
  - '000307204300002'
file:
- access_level: open_access
  checksum: d65f79775b51258a604ca5ec741297cc
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:15:00Z
  date_updated: 2020-07-14T12:46:06Z
  file_id: '5116'
  file_name: IST-2016-542-v1+1_2012-J-01-Poinculus.pdf
  file_size: 280280
  relation: main_file
file_date_updated: 2020-07-14T12:46:06Z
has_accepted_license: '1'
intvolume: '        33'
isi: 1
issue: '11'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Submitted Version
page: 1436 - 1444
publication: Pattern Recognition Letters
publication_status: published
publisher: Elsevier
publist_id: '3330'
pubrep_id: '542'
quality_controlled: '1'
scopus_import: '1'
status: public
title: A point calculus for interlevel set homology
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 33
year: '2012'
...
---
_id: '3331'
abstract:
- lang: eng
  text: Computing the topology of an algebraic plane curve C means computing a combinatorial
    graph that is isotopic to C and thus represents its topology in R2. We prove that,
    for a polynomial of degree n with integer coefficients bounded by 2ρ, the topology
    of the induced curve can be computed with  bit operations ( indicates that we
    omit logarithmic factors). Our analysis improves the previous best known complexity
    bounds by a factor of n2. The improvement is based on new techniques to compute
    and refine isolating intervals for the real roots of polynomials, and on the consequent
    amortized analysis of the critical fibers of the algebraic curve.
article_processing_charge: No
arxiv: 1
author:
- first_name: Michael
  full_name: Kerber, Michael
  id: 36E4574A-F248-11E8-B48F-1D18A9856A87
  last_name: Kerber
  orcid: 0000-0002-8030-9299
- first_name: Michael
  full_name: Sagraloff, Michael
  last_name: Sagraloff
citation:
  ama: Kerber M, Sagraloff M. A worst case bound for topology computation of algebraic
    curves. <i> Journal of Symbolic Computation</i>. 2012;47(3):239-258. doi:<a href="https://doi.org/10.1016/j.jsc.2011.11.001">10.1016/j.jsc.2011.11.001</a>
  apa: Kerber, M., &#38; Sagraloff, M. (2012). A worst case bound for topology computation
    of algebraic curves. <i> Journal of Symbolic Computation</i>. Elsevier. <a href="https://doi.org/10.1016/j.jsc.2011.11.001">https://doi.org/10.1016/j.jsc.2011.11.001</a>
  chicago: Kerber, Michael, and Michael Sagraloff. “A Worst Case Bound for Topology
    Computation of Algebraic Curves.” <i> Journal of Symbolic Computation</i>. Elsevier,
    2012. <a href="https://doi.org/10.1016/j.jsc.2011.11.001">https://doi.org/10.1016/j.jsc.2011.11.001</a>.
  ieee: M. Kerber and M. Sagraloff, “A worst case bound for topology computation of
    algebraic curves,” <i> Journal of Symbolic Computation</i>, vol. 47, no. 3. Elsevier,
    pp. 239–258, 2012.
  ista: Kerber M, Sagraloff M. 2012. A worst case bound for topology computation of
    algebraic curves.  Journal of Symbolic Computation. 47(3), 239–258.
  mla: Kerber, Michael, and Michael Sagraloff. “A Worst Case Bound for Topology Computation
    of Algebraic Curves.” <i> Journal of Symbolic Computation</i>, vol. 47, no. 3,
    Elsevier, 2012, pp. 239–58, doi:<a href="https://doi.org/10.1016/j.jsc.2011.11.001">10.1016/j.jsc.2011.11.001</a>.
  short: M. Kerber, M. Sagraloff,  Journal of Symbolic Computation 47 (2012) 239–258.
corr_author: '1'
date_created: 2018-12-11T12:02:43Z
date_published: 2012-03-01T00:00:00Z
date_updated: 2025-09-30T07:33:48Z
day: '01'
department:
- _id: HeEd
doi: 10.1016/j.jsc.2011.11.001
external_id:
  arxiv:
  - '1104.1510'
  isi:
  - '000300115300002'
intvolume: '        47'
isi: 1
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://arxiv.org/abs/1104.1510
month: '03'
oa: 1
oa_version: Preprint
page: 239 - 258
publication: ' Journal of Symbolic Computation'
publication_status: published
publisher: Elsevier
publist_id: '3303'
quality_controlled: '1'
scopus_import: '1'
status: public
title: A worst case bound for topology computation of algebraic curves
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 47
year: '2012'
...
---
OA_place: publisher
_id: '6588'
abstract:
- lang: eng
  text: First we note that the best polynomial approximation to vertical bar x vertical
    bar on the set, which consists of an interval on the positive half-axis and a
    point on the negative half-axis, can be given by means of the classical Chebyshev
    polynomials. Then we explore the cases when a solution of the related problem
    on two intervals can be given in elementary functions.
acknowledgement: "This work is supported by the Austrian Science Fund (FWF), Project
  P22025-N18.\r\n"
article_processing_charge: No
article_type: original
author:
- first_name: Florian
  full_name: Pausinger, Florian
  id: 2A77D7A2-F248-11E8-B48F-1D18A9856A87
  last_name: Pausinger
  orcid: 0000-0002-8379-3768
citation:
  ama: Pausinger F. Elementary solutions of the Bernstein problem on two intervals.
    <i>Journal of Mathematical Physics, Analysis, Geometry</i>. 2012;8(1):63-78.
  apa: Pausinger, F. (2012). Elementary solutions of the Bernstein problem on two
    intervals. <i>Journal of Mathematical Physics, Analysis, Geometry</i>. B. Verkin
    Institute for Low Temperature Physics and Engineering.
  chicago: Pausinger, Florian. “Elementary Solutions of the Bernstein Problem on Two
    Intervals.” <i>Journal of Mathematical Physics, Analysis, Geometry</i>. B. Verkin
    Institute for Low Temperature Physics and Engineering, 2012.
  ieee: F. Pausinger, “Elementary solutions of the Bernstein problem on two intervals,”
    <i>Journal of Mathematical Physics, Analysis, Geometry</i>, vol. 8, no. 1. B.
    Verkin Institute for Low Temperature Physics and Engineering, pp. 63–78, 2012.
  ista: Pausinger F. 2012. Elementary solutions of the Bernstein problem on two intervals.
    Journal of Mathematical Physics, Analysis, Geometry. 8(1), 63–78.
  mla: Pausinger, Florian. “Elementary Solutions of the Bernstein Problem on Two Intervals.”
    <i>Journal of Mathematical Physics, Analysis, Geometry</i>, vol. 8, no. 1, B.
    Verkin Institute for Low Temperature Physics and Engineering, 2012, pp. 63–78.
  short: F. Pausinger, Journal of Mathematical Physics, Analysis, Geometry 8 (2012)
    63–78.
corr_author: '1'
date_created: 2019-06-27T08:16:56Z
date_published: 2012-01-01T00:00:00Z
date_updated: 2025-06-26T12:10:42Z
day: '01'
department:
- _id: HeEd
external_id:
  isi:
  - '000301173600004'
intvolume: '         8'
isi: 1
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.mathnet.ru/eng/jmag525
month: '01'
oa: 1
oa_version: Published Version
page: 63-78
publication: Journal of Mathematical Physics, Analysis, Geometry
publication_identifier:
  issn:
  - 1812-9471
publication_status: published
publisher: B. Verkin Institute for Low Temperature Physics and Engineering
quality_controlled: '1'
scopus_import: '1'
status: public
title: Elementary solutions of the Bernstein problem on two intervals
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 8
year: '2012'
...
---
_id: '3266'
abstract:
- lang: eng
  text: We present a joint image segmentation and labeling model (JSL) which, given
    a bag of figure-ground segment hypotheses extracted at multiple image locations
    and scales, constructs a joint probability distribution over both the compatible
    image interpretations (tilings or image segmentations) composed from those segments,
    and over their labeling into categories. The process of drawing samples from the
    joint distribution can be interpreted as first sampling tilings, modeled as maximal
    cliques, from a graph connecting spatially non-overlapping segments in the bag
    [1], followed by sampling labels for those segments, conditioned on the choice
    of a particular tiling. We learn the segmentation and labeling parameters jointly,
    based on Maximum Likelihood with a novel Incremental Saddle Point estimation procedure.
    The partition function over tilings and labelings is increasingly more accurately
    approximated by including incorrect configurations that a not-yet-competent model
    rates probable during learning. We show that the proposed methodologymatches the
    current state of the art in the Stanford dataset [2], as well as in VOC2010, where
    41.7% accuracy on the test set is achieved.
author:
- first_name: Adrian
  full_name: Ion, Adrian
  id: 29F89302-F248-11E8-B48F-1D18A9856A87
  last_name: Ion
- first_name: Joao
  full_name: Carreira, Joao
  last_name: Carreira
- first_name: Cristian
  full_name: Sminchisescu, Cristian
  last_name: Sminchisescu
citation:
  ama: 'Ion A, Carreira J, Sminchisescu C. Probabilistic joint image segmentation
    and labeling. In: <i>NIPS Proceedings</i>. Vol 24. Neural Information Processing
    Systems Foundation; 2011:1827-1835.'
  apa: 'Ion, A., Carreira, J., &#38; Sminchisescu, C. (2011). Probabilistic joint
    image segmentation and labeling. In <i>NIPS Proceedings</i> (Vol. 24, pp. 1827–1835).
    Granada, Spain: Neural Information Processing Systems Foundation.'
  chicago: Ion, Adrian, Joao Carreira, and Cristian Sminchisescu. “Probabilistic Joint
    Image Segmentation and Labeling.” In <i>NIPS Proceedings</i>, 24:1827–35. Neural
    Information Processing Systems Foundation, 2011.
  ieee: A. Ion, J. Carreira, and C. Sminchisescu, “Probabilistic joint image segmentation
    and labeling,” in <i>NIPS Proceedings</i>, Granada, Spain, 2011, vol. 24, pp.
    1827–1835.
  ista: 'Ion A, Carreira J, Sminchisescu C. 2011. Probabilistic joint image segmentation
    and labeling. NIPS Proceedings. NIPS: Neural Information Processing Systems vol.
    24, 1827–1835.'
  mla: Ion, Adrian, et al. “Probabilistic Joint Image Segmentation and Labeling.”
    <i>NIPS Proceedings</i>, vol. 24, Neural Information Processing Systems Foundation,
    2011, pp. 1827–35.
  short: A. Ion, J. Carreira, C. Sminchisescu, in:, NIPS Proceedings, Neural Information
    Processing Systems Foundation, 2011, pp. 1827–1835.
conference:
  end_date: 2011-12-14
  location: Granada, Spain
  name: 'NIPS: Neural Information Processing Systems'
  start_date: 2011-12-12
date_created: 2018-12-11T12:02:21Z
date_published: 2011-12-01T00:00:00Z
date_updated: 2021-01-12T07:42:15Z
day: '01'
department:
- _id: HeEd
intvolume: '        24'
language:
- iso: eng
month: '12'
oa_version: None
page: 1827 - 1835
publication: NIPS Proceedings
publication_status: published
publisher: Neural Information Processing Systems Foundation
publist_id: '3381'
quality_controlled: '1'
scopus_import: 1
status: public
title: Probabilistic joint image segmentation and labeling
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 24
year: '2011'
...
---
_id: '3267'
abstract:
- lang: eng
  text: 'We address the problem of localizing homology classes, namely, finding the
    cycle representing a given class with the most concise geometric measure. We study
    the problem with different measures: volume, diameter and radius. For volume,
    that is, the 1-norm of a cycle, two main results are presented. First, we prove
    that the problem is NP-hard to approximate within any constant factor. Second,
    we prove that for homology of dimension two or higher, the problem is NP-hard
    to approximate even when the Betti number is O(1). The latter result leads to
    the inapproximability of the problem of computing the nonbounding cycle with the
    smallest volume and computing cycles representing a homology basis with the minimal
    total volume. As for the other two measures defined by pairwise geodesic distance,
    diameter and radius, we show that the localization problem is NP-hard for diameter
    but is polynomial for radius. Our work is restricted to homology over the ℤ2 field.'
article_processing_charge: No
author:
- first_name: Chao
  full_name: Chen, Chao
  id: 3E92416E-F248-11E8-B48F-1D18A9856A87
  last_name: Chen
- first_name: Daniel
  full_name: Freedman, Daniel
  last_name: Freedman
citation:
  ama: Chen C, Freedman D. Hardness results for homology localization. <i>Discrete
    &#38; Computational Geometry</i>. 2011;45(3):425-448. doi:<a href="https://doi.org/10.1007/s00454-010-9322-8">10.1007/s00454-010-9322-8</a>
  apa: Chen, C., &#38; Freedman, D. (2011). Hardness results for homology localization.
    <i>Discrete &#38; Computational Geometry</i>. Springer. <a href="https://doi.org/10.1007/s00454-010-9322-8">https://doi.org/10.1007/s00454-010-9322-8</a>
  chicago: Chen, Chao, and Daniel Freedman. “Hardness Results for Homology Localization.”
    <i>Discrete &#38; Computational Geometry</i>. Springer, 2011. <a href="https://doi.org/10.1007/s00454-010-9322-8">https://doi.org/10.1007/s00454-010-9322-8</a>.
  ieee: C. Chen and D. Freedman, “Hardness results for homology localization,” <i>Discrete
    &#38; Computational Geometry</i>, vol. 45, no. 3. Springer, pp. 425–448, 2011.
  ista: Chen C, Freedman D. 2011. Hardness results for homology localization. Discrete
    &#38; Computational Geometry. 45(3), 425–448.
  mla: Chen, Chao, and Daniel Freedman. “Hardness Results for Homology Localization.”
    <i>Discrete &#38; Computational Geometry</i>, vol. 45, no. 3, Springer, 2011,
    pp. 425–48, doi:<a href="https://doi.org/10.1007/s00454-010-9322-8">10.1007/s00454-010-9322-8</a>.
  short: C. Chen, D. Freedman, Discrete &#38; Computational Geometry 45 (2011) 425–448.
corr_author: '1'
date_created: 2018-12-11T12:02:21Z
date_published: 2011-01-14T00:00:00Z
date_updated: 2025-09-30T09:22:32Z
day: '14'
department:
- _id: HeEd
doi: 10.1007/s00454-010-9322-8
external_id:
  isi:
  - '000287146600005'
intvolume: '        45'
isi: 1
issue: '3'
language:
- iso: eng
month: '01'
oa_version: None
page: 425 - 448
publication: Discrete & Computational Geometry
publication_status: published
publisher: Springer
publist_id: '3379'
quality_controlled: '1'
related_material:
  record:
  - id: '10909'
    relation: earlier_version
    status: public
scopus_import: '1'
status: public
title: Hardness results for homology localization
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 45
year: '2011'
...
---
_id: '3269'
abstract:
- lang: eng
  text: The unintentional scattering of light between neighboring surfaces in complex
    projection environments increases the brightness and decreases the contrast, disrupting
    the appearance of the desired imagery. To achieve satisfactory projection results,
    the inverse problem of global illumination must be solved to cancel this secondary
    scattering. In this paper, we propose a global illumination cancellation method
    that minimizes the perceptual difference between the desired imagery and the actual
    total illumination in the resulting physical environment. Using Gauss-Newton and
    active set methods, we design a fast solver for the bound constrained nonlinear
    least squares problem raised by the perceptual error metrics. Our solver is further
    accelerated with a CUDA implementation and multi-resolution method to achieve
    1–2 fps for problems with approximately 3000 variables. We demonstrate the global
    illumination cancellation algorithm with our multi-projector system. Results show
    that our method preserves the color fidelity of the desired imagery significantly
    better than previous methods.
article_processing_charge: No
article_type: original
author:
- first_name: Yu
  full_name: Sheng, Yu
  last_name: Sheng
- first_name: Barbara
  full_name: Cutler, Barbara
  last_name: Cutler
- first_name: Chao
  full_name: Chen, Chao
  id: 3E92416E-F248-11E8-B48F-1D18A9856A87
  last_name: Chen
- first_name: Joshua
  full_name: Nasman, Joshua
  last_name: Nasman
citation:
  ama: Sheng Y, Cutler B, Chen C, Nasman J. Perceptual global illumination cancellation
    in complex projection environments. <i>Computer Graphics Forum</i>. 2011;30(4):1261-1268.
    doi:<a href="https://doi.org/10.1111/j.1467-8659.2011.01985.x">10.1111/j.1467-8659.2011.01985.x</a>
  apa: Sheng, Y., Cutler, B., Chen, C., &#38; Nasman, J. (2011). Perceptual global
    illumination cancellation in complex projection environments. <i>Computer Graphics
    Forum</i>. Wiley-Blackwell. <a href="https://doi.org/10.1111/j.1467-8659.2011.01985.x">https://doi.org/10.1111/j.1467-8659.2011.01985.x</a>
  chicago: Sheng, Yu, Barbara Cutler, Chao Chen, and Joshua Nasman. “Perceptual Global
    Illumination Cancellation in Complex Projection Environments.” <i>Computer Graphics
    Forum</i>. Wiley-Blackwell, 2011. <a href="https://doi.org/10.1111/j.1467-8659.2011.01985.x">https://doi.org/10.1111/j.1467-8659.2011.01985.x</a>.
  ieee: Y. Sheng, B. Cutler, C. Chen, and J. Nasman, “Perceptual global illumination
    cancellation in complex projection environments,” <i>Computer Graphics Forum</i>,
    vol. 30, no. 4. Wiley-Blackwell, pp. 1261–1268, 2011.
  ista: Sheng Y, Cutler B, Chen C, Nasman J. 2011. Perceptual global illumination
    cancellation in complex projection environments. Computer Graphics Forum. 30(4),
    1261–1268.
  mla: Sheng, Yu, et al. “Perceptual Global Illumination Cancellation in Complex Projection
    Environments.” <i>Computer Graphics Forum</i>, vol. 30, no. 4, Wiley-Blackwell,
    2011, pp. 1261–68, doi:<a href="https://doi.org/10.1111/j.1467-8659.2011.01985.x">10.1111/j.1467-8659.2011.01985.x</a>.
  short: Y. Sheng, B. Cutler, C. Chen, J. Nasman, Computer Graphics Forum 30 (2011)
    1261–1268.
date_created: 2018-12-11T12:02:22Z
date_published: 2011-07-19T00:00:00Z
date_updated: 2025-09-30T09:22:04Z
day: '19'
department:
- _id: HeEd
doi: 10.1111/j.1467-8659.2011.01985.x
external_id:
  isi:
  - '000292884700011'
intvolume: '        30'
isi: 1
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://www.cs.cmu.edu/%7Eshengyu/download/egsr2011_paper.pdf
month: '07'
oa: 1
oa_version: Published Version
page: 1261 - 1268
publication: Computer Graphics Forum
publication_status: published
publisher: Wiley-Blackwell
publist_id: '3377'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Perceptual global illumination cancellation in complex projection environments
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 30
year: '2011'
...
---
_id: '3270'
abstract:
- lang: eng
  text: 'The persistence diagram of a filtered simplicial com- plex is usually computed
    by reducing the boundary matrix of the complex. We introduce a simple op- timization
    technique: by processing the simplices of the complex in decreasing dimension,
    we can “kill” columns (i.e., set them to zero) without reducing them. This technique
    completely avoids reduction on roughly half of the columns. We demonstrate that
    this idea significantly improves the running time of the reduction algorithm in
    practice. We also give an output-sensitive complexity analysis for the new al-
    gorithm which yields to sub-cubic asymptotic bounds under certain assumptions.'
author:
- first_name: Chao
  full_name: Chen, Chao
  id: 3E92416E-F248-11E8-B48F-1D18A9856A87
  last_name: Chen
- first_name: Michael
  full_name: Kerber, Michael
  id: 36E4574A-F248-11E8-B48F-1D18A9856A87
  last_name: Kerber
  orcid: 0000-0002-8030-9299
citation:
  ama: 'Chen C, Kerber M. Persistent homology computation with a twist. In: TU Dortmund;
    2011:197-200.'
  apa: 'Chen, C., &#38; Kerber, M. (2011). Persistent homology computation with a
    twist (pp. 197–200). Presented at the EuroCG: European Workshop on Computational
    Geometry, Morschach, Switzerland: TU Dortmund.'
  chicago: Chen, Chao, and Michael Kerber. “Persistent Homology Computation with a
    Twist,” 197–200. TU Dortmund, 2011.
  ieee: 'C. Chen and M. Kerber, “Persistent homology computation with a twist,” presented
    at the EuroCG: European Workshop on Computational Geometry, Morschach, Switzerland,
    2011, pp. 197–200.'
  ista: 'Chen C, Kerber M. 2011. Persistent homology computation with a twist. EuroCG:
    European Workshop on Computational Geometry, 197–200.'
  mla: Chen, Chao, and Michael Kerber. <i>Persistent Homology Computation with a Twist</i>.
    TU Dortmund, 2011, pp. 197–200.
  short: C. Chen, M. Kerber, in:, TU Dortmund, 2011, pp. 197–200.
conference:
  end_date: 2011-03-30
  location: Morschach, Switzerland
  name: 'EuroCG: European Workshop on Computational Geometry'
  start_date: 2011-03-28
corr_author: '1'
date_created: 2018-12-11T12:02:22Z
date_published: 2011-01-01T00:00:00Z
date_updated: 2024-10-09T20:54:35Z
day: '01'
department:
- _id: HeEd
language:
- iso: eng
month: '01'
oa_version: None
page: 197 - 200
publication_status: published
publisher: TU Dortmund
publist_id: '3376'
quality_controlled: '1'
status: public
title: Persistent homology computation with a twist
type: conference
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '3271'
abstract:
- lang: eng
  text: In this paper we present an efficient framework for computation of persis-
    tent homology of cubical data in arbitrary dimensions. An existing algorithm using
    simplicial complexes is adapted to the setting of cubical complexes. The proposed
    approach enables efficient application of persistent homology in domains where
    the data is naturally given in a cubical form. By avoiding triangulation of the
    data, we significantly reduce the size of the complex. We also present a data-structure
    de- signed to compactly store and quickly manipulate cubical complexes. By means
    of numerical experiments, we show high speed and memory efficiency of our ap-
    proach. We compare our framework to other available implementations, showing its
    superiority. Finally, we report performance on selected 3D and 4D data-sets.
alternative_title:
- Theory, Algorithms, and Applications
author:
- first_name: Hubert
  full_name: Wagner, Hubert
  last_name: Wagner
- first_name: Chao
  full_name: Chen, Chao
  id: 3E92416E-F248-11E8-B48F-1D18A9856A87
  last_name: Chen
- first_name: Erald
  full_name: Vuçini, Erald
  last_name: Vuçini
citation:
  ama: 'Wagner H, Chen C, Vuçini E. Efficient computation of persistent homology for
    cubical data. In: Peikert R, Hauser H, Carr H, Fuchs R, eds. <i>Topological Methods
    in Data Analysis and Visualization II</i>. Springer; 2011:91-106. doi:<a href="https://doi.org/10.1007/978-3-642-23175-9_7">10.1007/978-3-642-23175-9_7</a>'
  apa: Wagner, H., Chen, C., &#38; Vuçini, E. (2011). Efficient computation of persistent
    homology for cubical data. In R. Peikert, H. Hauser, H. Carr, &#38; R. Fuchs (Eds.),
    <i>Topological Methods in Data Analysis and Visualization II</i> (pp. 91–106).
    Springer. <a href="https://doi.org/10.1007/978-3-642-23175-9_7">https://doi.org/10.1007/978-3-642-23175-9_7</a>
  chicago: Wagner, Hubert, Chao Chen, and Erald Vuçini. “Efficient Computation of
    Persistent Homology for Cubical Data.” In <i>Topological Methods in Data Analysis
    and Visualization II</i>, edited by Ronald Peikert, Helwig Hauser, Hamish Carr,
    and Raphael Fuchs, 91–106. Springer, 2011. <a href="https://doi.org/10.1007/978-3-642-23175-9_7">https://doi.org/10.1007/978-3-642-23175-9_7</a>.
  ieee: H. Wagner, C. Chen, and E. Vuçini, “Efficient computation of persistent homology
    for cubical data,” in <i>Topological Methods in Data Analysis and Visualization
    II</i>, R. Peikert, H. Hauser, H. Carr, and R. Fuchs, Eds. Springer, 2011, pp.
    91–106.
  ista: 'Wagner H, Chen C, Vuçini E. 2011.Efficient computation of persistent homology
    for cubical data. In: Topological Methods in Data Analysis and Visualization II.
    Theory, Algorithms, and Applications, , 91–106.'
  mla: Wagner, Hubert, et al. “Efficient Computation of Persistent Homology for Cubical
    Data.” <i>Topological Methods in Data Analysis and Visualization II</i>, edited
    by Ronald Peikert et al., Springer, 2011, pp. 91–106, doi:<a href="https://doi.org/10.1007/978-3-642-23175-9_7">10.1007/978-3-642-23175-9_7</a>.
  short: H. Wagner, C. Chen, E. Vuçini, in:, R. Peikert, H. Hauser, H. Carr, R. Fuchs
    (Eds.), Topological Methods in Data Analysis and Visualization II, Springer, 2011,
    pp. 91–106.
date_created: 2018-12-11T12:02:23Z
date_published: 2011-11-14T00:00:00Z
date_updated: 2021-01-12T07:42:18Z
day: '14'
department:
- _id: HeEd
doi: 10.1007/978-3-642-23175-9_7
editor:
- first_name: Ronald
  full_name: Peikert, Ronald
  last_name: Peikert
- first_name: Helwig
  full_name: Hauser, Helwig
  last_name: Hauser
- first_name: Hamish
  full_name: Carr, Hamish
  last_name: Carr
- first_name: Raphael
  full_name: Fuchs, Raphael
  last_name: Fuchs
language:
- iso: eng
month: '11'
oa_version: None
page: 91 - 106
publication: Topological Methods in Data Analysis and Visualization II
publication_status: published
publisher: Springer
publist_id: '3375'
quality_controlled: '1'
scopus_import: 1
status: public
title: Efficient computation of persistent homology for cubical data
type: book_chapter
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
