---
_id: '14184'
abstract:
- lang: eng
text: "Learning disentangled representations is considered a cornerstone problem
in\r\nrepresentation learning. Recently, Locatello et al. (2019) demonstrated
that\r\nunsupervised disentanglement learning without inductive biases is theoretically\r\nimpossible
and that existing inductive biases and unsupervised methods do not\r\nallow to
consistently learn disentangled representations. However, in many\r\npractical
settings, one might have access to a limited amount of supervision,\r\nfor example
through manual labeling of (some) factors of variation in a few\r\ntraining examples.
In this paper, we investigate the impact of such supervision\r\non state-of-the-art
disentanglement methods and perform a large scale study,\r\ntraining over 52000
models under well-defined and reproducible experimental\r\nconditions. We observe
that a small number of labeled examples (0.01--0.5\\% of\r\nthe data set), with
potentially imprecise and incomplete labels, is sufficient\r\nto perform model
selection on state-of-the-art unsupervised models. Further, we\r\ninvestigate
the benefit of incorporating supervision into the training process.\r\nOverall,
we empirically validate that with little and imprecise supervision it\r\nis possible
to reliably learn disentangled representations."
article_processing_charge: No
arxiv: 1
author:
- first_name: Francesco
full_name: Locatello, Francesco
id: 26cfd52f-2483-11ee-8040-88983bcc06d4
last_name: Locatello
orcid: 0000-0002-4850-0683
- first_name: Michael
full_name: Tschannen, Michael
last_name: Tschannen
- first_name: Stefan
full_name: Bauer, Stefan
last_name: Bauer
- first_name: Gunnar
full_name: Rätsch, Gunnar
last_name: Rätsch
- first_name: Bernhard
full_name: Schölkopf, Bernhard
last_name: Schölkopf
- first_name: Olivier
full_name: Bachem, Olivier
last_name: Bachem
citation:
ama: 'Locatello F, Tschannen M, Bauer S, Rätsch G, Schölkopf B, Bachem O. Disentangling
factors of variation using few labels. In: 8th International Conference on
Learning Representations. ; 2019.'
apa: Locatello, F., Tschannen, M., Bauer, S., Rätsch, G., Schölkopf, B., & Bachem,
O. (2019). Disentangling factors of variation using few labels. In 8th International
Conference on Learning Representations. Virtual.
chicago: Locatello, Francesco, Michael Tschannen, Stefan Bauer, Gunnar Rätsch, Bernhard
Schölkopf, and Olivier Bachem. “Disentangling Factors of Variation Using Few Labels.”
In 8th International Conference on Learning Representations, 2019.
ieee: F. Locatello, M. Tschannen, S. Bauer, G. Rätsch, B. Schölkopf, and O. Bachem,
“Disentangling factors of variation using few labels,” in 8th International
Conference on Learning Representations, Virtual, 2019.
ista: 'Locatello F, Tschannen M, Bauer S, Rätsch G, Schölkopf B, Bachem O. 2019.
Disentangling factors of variation using few labels. 8th International Conference
on Learning Representations. ICLR: International Conference on Learning Representations.'
mla: Locatello, Francesco, et al. “Disentangling Factors of Variation Using Few
Labels.” 8th International Conference on Learning Representations, 2019.
short: F. Locatello, M. Tschannen, S. Bauer, G. Rätsch, B. Schölkopf, O. Bachem,
in:, 8th International Conference on Learning Representations, 2019.
conference:
end_date: 2020-05-01
location: Virtual
name: 'ICLR: International Conference on Learning Representations'
start_date: 2020-04-26
date_created: 2023-08-22T14:06:37Z
date_published: 2019-12-20T00:00:00Z
date_updated: 2023-09-12T07:01:34Z
day: '20'
department:
- _id: FrLo
extern: '1'
external_id:
arxiv:
- '1905.01258'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1905.01258
month: '12'
oa: 1
oa_version: Preprint
publication: 8th International Conference on Learning Representations
publication_status: published
quality_controlled: '1'
scopus_import: '1'
status: public
title: Disentangling factors of variation using few labels
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2019'
...
---
_id: '14189'
abstract:
- lang: eng
text: "We consider the problem of recovering a common latent source with independent\r\ncomponents
from multiple views. This applies to settings in which a variable is\r\nmeasured
with multiple experimental modalities, and where the goal is to\r\nsynthesize
the disparate measurements into a single unified representation. We\r\nconsider
the case that the observed views are a nonlinear mixing of\r\ncomponent-wise corruptions
of the sources. When the views are considered\r\nseparately, this reduces to nonlinear
Independent Component Analysis (ICA) for\r\nwhich it is provably impossible to
undo the mixing. We present novel\r\nidentifiability proofs that this is possible
when the multiple views are\r\nconsidered jointly, showing that the mixing can
theoretically be undone using\r\nfunction approximators such as deep neural networks.
In contrast to known\r\nidentifiability results for nonlinear ICA, we prove that
independent latent\r\nsources with arbitrary mixing can be recovered as long as
multiple,\r\nsufficiently different noisy views are available."
alternative_title:
- PMLR
article_processing_charge: No
arxiv: 1
author:
- first_name: Luigi
full_name: Gresele, Luigi
last_name: Gresele
- first_name: Paul K.
full_name: Rubenstein, Paul K.
last_name: Rubenstein
- first_name: Arash
full_name: Mehrjou, Arash
last_name: Mehrjou
- first_name: Francesco
full_name: Locatello, Francesco
id: 26cfd52f-2483-11ee-8040-88983bcc06d4
last_name: Locatello
orcid: 0000-0002-4850-0683
- first_name: Bernhard
full_name: Schölkopf, Bernhard
last_name: Schölkopf
citation:
ama: 'Gresele L, Rubenstein PK, Mehrjou A, Locatello F, Schölkopf B. The incomplete
Rosetta Stone problem: Identifiability results for multi-view nonlinear ICA. In:
Proceedings of the 35th Conference on Uncertainty in Artificial Intelligence.
Vol 115. ML Research Press; 2019:217-227.'
apa: 'Gresele, L., Rubenstein, P. K., Mehrjou, A., Locatello, F., & Schölkopf,
B. (2019). The incomplete Rosetta Stone problem: Identifiability results for multi-view
nonlinear ICA. In Proceedings of the 35th Conference on Uncertainty in Artificial
Intelligence (Vol. 115, pp. 217–227). Tel Aviv, Israel: ML Research Press.'
chicago: 'Gresele, Luigi, Paul K. Rubenstein, Arash Mehrjou, Francesco Locatello,
and Bernhard Schölkopf. “The Incomplete Rosetta Stone Problem: Identifiability
Results for Multi-View Nonlinear ICA.” In Proceedings of the 35th Conference
on Uncertainty in Artificial Intelligence, 115:217–27. ML Research Press,
2019.'
ieee: 'L. Gresele, P. K. Rubenstein, A. Mehrjou, F. Locatello, and B. Schölkopf,
“The incomplete Rosetta Stone problem: Identifiability results for multi-view
nonlinear ICA,” in Proceedings of the 35th Conference on Uncertainty in Artificial
Intelligence, Tel Aviv, Israel, 2019, vol. 115, pp. 217–227.'
ista: 'Gresele L, Rubenstein PK, Mehrjou A, Locatello F, Schölkopf B. 2019. The
incomplete Rosetta Stone problem: Identifiability results for multi-view nonlinear
ICA. Proceedings of the 35th Conference on Uncertainty in Artificial Intelligence.
UAI: Uncertainty in Artificial Intelligence, PMLR, vol. 115, 217–227.'
mla: 'Gresele, Luigi, et al. “The Incomplete Rosetta Stone Problem: Identifiability
Results for Multi-View Nonlinear ICA.” Proceedings of the 35th Conference on
Uncertainty in Artificial Intelligence, vol. 115, ML Research Press, 2019,
pp. 217–27.'
short: L. Gresele, P.K. Rubenstein, A. Mehrjou, F. Locatello, B. Schölkopf, in:,
Proceedings of the 35th Conference on Uncertainty in Artificial Intelligence,
ML Research Press, 2019, pp. 217–227.
conference:
end_date: 2019-07-25
location: Tel Aviv, Israel
name: 'UAI: Uncertainty in Artificial Intelligence'
start_date: 2019-07-22
date_created: 2023-08-22T14:08:35Z
date_published: 2019-05-16T00:00:00Z
date_updated: 2023-09-12T08:07:38Z
day: '16'
department:
- _id: FrLo
extern: '1'
external_id:
arxiv:
- '1905.06642'
intvolume: ' 115'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1905.06642
month: '05'
oa: 1
oa_version: Preprint
page: 217-227
publication: Proceedings of the 35th Conference on Uncertainty in Artificial Intelligence
publication_status: published
publisher: ML Research Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'The incomplete Rosetta Stone problem: Identifiability results for multi-view
nonlinear ICA'
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 115
year: '2019'
...
---
_id: '14190'
abstract:
- lang: eng
text: "Learning meaningful and compact representations with disentangled semantic\r\naspects
is considered to be of key importance in representation learning. Since\r\nreal-world
data is notoriously costly to collect, many recent state-of-the-art\r\ndisentanglement
models have heavily relied on synthetic toy data-sets. In this\r\npaper, we propose
a novel data-set which consists of over one million images of\r\nphysical 3D objects
with seven factors of variation, such as object color,\r\nshape, size and position.
In order to be able to control all the factors of\r\nvariation precisely, we built
an experimental platform where the objects are\r\nbeing moved by a robotic arm.
In addition, we provide two more datasets which\r\nconsist of simulations of the
experimental setup. These datasets provide for\r\nthe first time the possibility
to systematically investigate how well different\r\ndisentanglement methods perform
on real data in comparison to simulation, and\r\nhow simulated data can be leveraged
to build better representations of the real\r\nworld. We provide a first experimental
study of these questions and our results\r\nindicate that learned models transfer
poorly, but that model and hyperparameter\r\nselection is an effective means of
transferring information to the real world."
article_processing_charge: No
arxiv: 1
author:
- first_name: Muhammad Waleed
full_name: Gondal, Muhammad Waleed
last_name: Gondal
- first_name: Manuel
full_name: Wüthrich, Manuel
last_name: Wüthrich
- first_name: Đorđe
full_name: Miladinović, Đorđe
last_name: Miladinović
- first_name: Francesco
full_name: Locatello, Francesco
id: 26cfd52f-2483-11ee-8040-88983bcc06d4
last_name: Locatello
orcid: 0000-0002-4850-0683
- first_name: Martin
full_name: Breidt, Martin
last_name: Breidt
- first_name: Valentin
full_name: Volchkov, Valentin
last_name: Volchkov
- first_name: Joel
full_name: Akpo, Joel
last_name: Akpo
- first_name: Olivier
full_name: Bachem, Olivier
last_name: Bachem
- first_name: Bernhard
full_name: Schölkopf, Bernhard
last_name: Schölkopf
- first_name: Stefan
full_name: Bauer, Stefan
last_name: Bauer
citation:
ama: 'Gondal MW, Wüthrich M, Miladinović Đ, et al. On the transfer of inductive
bias from simulation to the real world: a new disentanglement dataset. In: Advances
in Neural Information Processing Systems. Vol 32. ; 2019.'
apa: 'Gondal, M. W., Wüthrich, M., Miladinović, Đ., Locatello, F., Breidt, M., Volchkov,
V., … Bauer, S. (2019). On the transfer of inductive bias from simulation to the
real world: a new disentanglement dataset. In Advances in Neural Information
Processing Systems (Vol. 32). Vancouver, Canada.'
chicago: 'Gondal, Muhammad Waleed, Manuel Wüthrich, Đorđe Miladinović, Francesco
Locatello, Martin Breidt, Valentin Volchkov, Joel Akpo, Olivier Bachem, Bernhard
Schölkopf, and Stefan Bauer. “On the Transfer of Inductive Bias from Simulation
to the Real World: A New Disentanglement Dataset.” In Advances in Neural Information
Processing Systems, Vol. 32, 2019.'
ieee: 'M. W. Gondal et al., “On the transfer of inductive bias from simulation
to the real world: a new disentanglement dataset,” in Advances in Neural Information
Processing Systems, Vancouver, Canada, 2019, vol. 32.'
ista: 'Gondal MW, Wüthrich M, Miladinović Đ, Locatello F, Breidt M, Volchkov V,
Akpo J, Bachem O, Schölkopf B, Bauer S. 2019. On the transfer of inductive bias
from simulation to the real world: a new disentanglement dataset. Advances in
Neural Information Processing Systems. NeurIPS: Neural Information Processing
Systems vol. 32.'
mla: 'Gondal, Muhammad Waleed, et al. “On the Transfer of Inductive Bias from Simulation
to the Real World: A New Disentanglement Dataset.” Advances in Neural Information
Processing Systems, vol. 32, 2019.'
short: M.W. Gondal, M. Wüthrich, Đ. Miladinović, F. Locatello, M. Breidt, V. Volchkov,
J. Akpo, O. Bachem, B. Schölkopf, S. Bauer, in:, Advances in Neural Information
Processing Systems, 2019.
conference:
end_date: 2019-12-14
location: Vancouver, Canada
name: 'NeurIPS: Neural Information Processing Systems'
start_date: 2019-12-08
date_created: 2023-08-22T14:09:13Z
date_published: 2019-06-07T00:00:00Z
date_updated: 2023-09-13T09:46:38Z
day: '07'
department:
- _id: FrLo
extern: '1'
external_id:
arxiv:
- '1906.03292'
intvolume: ' 32'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1906.03292
month: '06'
oa: 1
oa_version: Preprint
publication: Advances in Neural Information Processing Systems
publication_identifier:
isbn:
- '9781713807933'
publication_status: published
quality_controlled: '1'
status: public
title: 'On the transfer of inductive bias from simulation to the real world: a new
disentanglement dataset'
type: conference
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 32
year: '2019'
...
---
_id: '14191'
abstract:
- lang: eng
text: A broad class of convex optimization problems can be formulated as a semidefinite
program (SDP), minimization of a convex function over the positive-semidefinite
cone subject to some affine constraints. The majority of classical SDP solvers
are designed for the deterministic setting where problem data is readily available.
In this setting, generalized conditional gradient methods (aka Frank-Wolfe-type
methods) provide scalable solutions by leveraging the so-called linear minimization
oracle instead of the projection onto the semidefinite cone. Most problems in
machine learning and modern engineering applications, however, contain some degree
of stochasticity. In this work, we propose the first conditional-gradient-type
method for solving stochastic optimization problems under affine constraints.
Our method guarantees O(k−1/3) convergence rate in expectation on the objective
residual and O(k−5/12) on the feasibility gap.
article_processing_charge: No
arxiv: 1
author:
- first_name: Francesco
full_name: Locatello, Francesco
id: 26cfd52f-2483-11ee-8040-88983bcc06d4
last_name: Locatello
orcid: 0000-0002-4850-0683
- first_name: Alp
full_name: Yurtsever, Alp
last_name: Yurtsever
- first_name: Olivier
full_name: Fercoq, Olivier
last_name: Fercoq
- first_name: Volkan
full_name: Cevher, Volkan
last_name: Cevher
citation:
ama: 'Locatello F, Yurtsever A, Fercoq O, Cevher V. Stochastic Frank-Wolfe for composite
convex minimization. In: Advances in Neural Information Processing Systems.
Vol 32. ; 2019:14291–14301.'
apa: Locatello, F., Yurtsever, A., Fercoq, O., & Cevher, V. (2019). Stochastic
Frank-Wolfe for composite convex minimization. In Advances in Neural Information
Processing Systems (Vol. 32, pp. 14291–14301). Vancouver, Canada.
chicago: Locatello, Francesco, Alp Yurtsever, Olivier Fercoq, and Volkan Cevher.
“Stochastic Frank-Wolfe for Composite Convex Minimization.” In Advances in
Neural Information Processing Systems, 32:14291–14301, 2019.
ieee: F. Locatello, A. Yurtsever, O. Fercoq, and V. Cevher, “Stochastic Frank-Wolfe
for composite convex minimization,” in Advances in Neural Information Processing
Systems, Vancouver, Canada, 2019, vol. 32, pp. 14291–14301.
ista: 'Locatello F, Yurtsever A, Fercoq O, Cevher V. 2019. Stochastic Frank-Wolfe
for composite convex minimization. Advances in Neural Information Processing Systems.
NeurIPS: Neural Information Processing Systems vol. 32, 14291–14301.'
mla: Locatello, Francesco, et al. “Stochastic Frank-Wolfe for Composite Convex Minimization.”
Advances in Neural Information Processing Systems, vol. 32, 2019, pp. 14291–14301.
short: F. Locatello, A. Yurtsever, O. Fercoq, V. Cevher, in:, Advances in Neural
Information Processing Systems, 2019, pp. 14291–14301.
conference:
end_date: 2019-12-14
location: Vancouver, Canada
name: 'NeurIPS: Neural Information Processing Systems'
start_date: 2019-12-08
date_created: 2023-08-22T14:09:35Z
date_published: 2019-12-29T00:00:00Z
date_updated: 2023-09-12T08:48:45Z
day: '29'
department:
- _id: FrLo
extern: '1'
external_id:
arxiv:
- '1901.10348'
intvolume: ' 32'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1901.10348
month: '12'
oa: 1
oa_version: Preprint
page: 14291–14301
publication: Advances in Neural Information Processing Systems
publication_identifier:
isbn:
- '9781713807933'
publication_status: published
quality_controlled: '1'
scopus_import: '1'
status: public
title: Stochastic Frank-Wolfe for composite convex minimization
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 32
year: '2019'
...
---
_id: '14193'
abstract:
- lang: eng
text: "A disentangled representation encodes information about the salient factors\r\nof
variation in the data independently. Although it is often argued that this\r\nrepresentational
format is useful in learning to solve many real-world\r\ndown-stream tasks, there
is little empirical evidence that supports this claim.\r\nIn this paper, we conduct
a large-scale study that investigates whether\r\ndisentangled representations
are more suitable for abstract reasoning tasks.\r\nUsing two new tasks similar
to Raven's Progressive Matrices, we evaluate the\r\nusefulness of the representations
learned by 360 state-of-the-art unsupervised\r\ndisentanglement models. Based
on these representations, we train 3600 abstract\r\nreasoning models and observe
that disentangled representations do in fact lead\r\nto better down-stream performance.
In particular, they enable quicker learning\r\nusing fewer samples."
article_processing_charge: No
arxiv: 1
author:
- first_name: Sjoerd van
full_name: Steenkiste, Sjoerd van
last_name: Steenkiste
- first_name: Francesco
full_name: Locatello, Francesco
id: 26cfd52f-2483-11ee-8040-88983bcc06d4
last_name: Locatello
orcid: 0000-0002-4850-0683
- first_name: Jürgen
full_name: Schmidhuber, Jürgen
last_name: Schmidhuber
- first_name: Olivier
full_name: Bachem, Olivier
last_name: Bachem
citation:
ama: 'Steenkiste S van, Locatello F, Schmidhuber J, Bachem O. Are disentangled representations
helpful for abstract visual reasoning? In: Advances in Neural Information Processing
Systems. Vol 32. ; 2019.'
apa: Steenkiste, S. van, Locatello, F., Schmidhuber, J., & Bachem, O. (2019).
Are disentangled representations helpful for abstract visual reasoning? In Advances
in Neural Information Processing Systems (Vol. 32). Vancouver, Canada.
chicago: Steenkiste, Sjoerd van, Francesco Locatello, Jürgen Schmidhuber, and Olivier
Bachem. “Are Disentangled Representations Helpful for Abstract Visual Reasoning?”
In Advances in Neural Information Processing Systems, Vol. 32, 2019.
ieee: S. van Steenkiste, F. Locatello, J. Schmidhuber, and O. Bachem, “Are disentangled
representations helpful for abstract visual reasoning?,” in Advances in Neural
Information Processing Systems, Vancouver, Canada, 2019, vol. 32.
ista: 'Steenkiste S van, Locatello F, Schmidhuber J, Bachem O. 2019. Are disentangled
representations helpful for abstract visual reasoning? Advances in Neural Information
Processing Systems. NeurIPS: Neural Information Processing Systems vol. 32.'
mla: Steenkiste, Sjoerd van, et al. “Are Disentangled Representations Helpful for
Abstract Visual Reasoning?” Advances in Neural Information Processing Systems,
vol. 32, 2019.
short: S. van Steenkiste, F. Locatello, J. Schmidhuber, O. Bachem, in:, Advances
in Neural Information Processing Systems, 2019.
conference:
end_date: 2019-12-14
location: Vancouver, Canada
name: 'NeurIPS: Neural Information Processing Systems'
start_date: 2019-12-08
date_created: 2023-08-22T14:09:53Z
date_published: 2019-05-29T00:00:00Z
date_updated: 2024-10-14T12:28:15Z
day: '29'
department:
- _id: FrLo
extern: '1'
external_id:
arxiv:
- '1905.12506'
intvolume: ' 32'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.1905.12506
month: '05'
oa: 1
oa_version: Preprint
publication: Advances in Neural Information Processing Systems
publication_identifier:
isbn:
- '9781713807933'
publication_status: published
quality_controlled: '1'
status: public
title: Are disentangled representations helpful for abstract visual reasoning?
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 32
year: '2019'
...
---
_id: '14197'
abstract:
- lang: eng
text: "Recently there has been a significant interest in learning disentangled\r\nrepresentations,
as they promise increased interpretability, generalization to\r\nunseen scenarios
and faster learning on downstream tasks. In this paper, we\r\ninvestigate the
usefulness of different notions of disentanglement for\r\nimproving the fairness
of downstream prediction tasks based on representations.\r\nWe consider the setting
where the goal is to predict a target variable based on\r\nthe learned representation
of high-dimensional observations (such as images)\r\nthat depend on both the target
variable and an \\emph{unobserved} sensitive\r\nvariable. We show that in this
setting both the optimal and empirical\r\npredictions can be unfair, even if the
target variable and the sensitive\r\nvariable are independent. Analyzing the representations
of more than\r\n\\num{12600} trained state-of-the-art disentangled models, we
observe that\r\nseveral disentanglement scores are consistently correlated with
increased\r\nfairness, suggesting that disentanglement may be a useful property
to encourage\r\nfairness when sensitive variables are not observed."
article_processing_charge: No
arxiv: 1
author:
- first_name: Francesco
full_name: Locatello, Francesco
id: 26cfd52f-2483-11ee-8040-88983bcc06d4
last_name: Locatello
orcid: 0000-0002-4850-0683
- first_name: Gabriele
full_name: Abbati, Gabriele
last_name: Abbati
- first_name: Tom
full_name: Rainforth, Tom
last_name: Rainforth
- first_name: Stefan
full_name: Bauer, Stefan
last_name: Bauer
- first_name: Bernhard
full_name: Schölkopf, Bernhard
last_name: Schölkopf
- first_name: Olivier
full_name: Bachem, Olivier
last_name: Bachem
citation:
ama: 'Locatello F, Abbati G, Rainforth T, Bauer S, Schölkopf B, Bachem O. On the
fairness of disentangled representations. In: Advances in Neural Information
Processing Systems. Vol 32. ; 2019:14611–14624.'
apa: Locatello, F., Abbati, G., Rainforth, T., Bauer, S., Schölkopf, B., & Bachem,
O. (2019). On the fairness of disentangled representations. In Advances in
Neural Information Processing Systems (Vol. 32, pp. 14611–14624). Vancouver,
Canada.
chicago: Locatello, Francesco, Gabriele Abbati, Tom Rainforth, Stefan Bauer, Bernhard
Schölkopf, and Olivier Bachem. “On the Fairness of Disentangled Representations.”
In Advances in Neural Information Processing Systems, 32:14611–14624, 2019.
ieee: F. Locatello, G. Abbati, T. Rainforth, S. Bauer, B. Schölkopf, and O. Bachem,
“On the fairness of disentangled representations,” in Advances in Neural Information
Processing Systems, Vancouver, Canada, 2019, vol. 32, pp. 14611–14624.
ista: 'Locatello F, Abbati G, Rainforth T, Bauer S, Schölkopf B, Bachem O. 2019.
On the fairness of disentangled representations. Advances in Neural Information
Processing Systems. NeurIPS: Neural Information Processing Systems vol. 32, 14611–14624.'
mla: Locatello, Francesco, et al. “On the Fairness of Disentangled Representations.”
Advances in Neural Information Processing Systems, vol. 32, 2019, pp. 14611–14624.
short: F. Locatello, G. Abbati, T. Rainforth, S. Bauer, B. Schölkopf, O. Bachem,
in:, Advances in Neural Information Processing Systems, 2019, pp. 14611–14624.
conference:
end_date: 2019-12-14
location: Vancouver, Canada
name: 'NeurIPS: Neural Information Processing Systems'
start_date: 2019-12-08
date_created: 2023-08-22T14:12:28Z
date_published: 2019-12-08T00:00:00Z
date_updated: 2024-10-14T12:29:05Z
day: '08'
department:
- _id: FrLo
extern: '1'
external_id:
arxiv:
- '1905.13662'
intvolume: ' 32'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1905.13662
month: '12'
oa: 1
oa_version: Preprint
page: 14611–14624
publication: Advances in Neural Information Processing Systems
publication_identifier:
isbn:
- '9781713807933'
publication_status: published
quality_controlled: '1'
scopus_import: '1'
status: public
title: On the fairness of disentangled representations
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 32
year: '2019'
...
---
_id: '14200'
abstract:
- lang: eng
text: "The key idea behind the unsupervised learning of disentangled representations\r\nis
that real-world data is generated by a few explanatory factors of variation\r\nwhich
can be recovered by unsupervised learning algorithms. In this paper, we\r\nprovide
a sober look at recent progress in the field and challenge some common\r\nassumptions.
We first theoretically show that the unsupervised learning of\r\ndisentangled
representations is fundamentally impossible without inductive\r\nbiases on both
the models and the data. Then, we train more than 12000 models\r\ncovering most
prominent methods and evaluation metrics in a reproducible\r\nlarge-scale experimental
study on seven different data sets. We observe that\r\nwhile the different methods
successfully enforce properties ``encouraged'' by\r\nthe corresponding losses,
well-disentangled models seemingly cannot be\r\nidentified without supervision.
Furthermore, increased disentanglement does not\r\nseem to lead to a decreased
sample complexity of learning for downstream tasks.\r\nOur results suggest that
future work on disentanglement learning should be\r\nexplicit about the role of
inductive biases and (implicit) supervision,\r\ninvestigate concrete benefits
of enforcing disentanglement of the learned\r\nrepresentations, and consider a
reproducible experimental setup covering\r\nseveral data sets."
article_processing_charge: No
arxiv: 1
author:
- first_name: Francesco
full_name: Locatello, Francesco
id: 26cfd52f-2483-11ee-8040-88983bcc06d4
last_name: Locatello
orcid: 0000-0002-4850-0683
- first_name: Stefan
full_name: Bauer, Stefan
last_name: Bauer
- first_name: Mario
full_name: Lucic, Mario
last_name: Lucic
- first_name: Gunnar
full_name: Rätsch, Gunnar
last_name: Rätsch
- first_name: Sylvain
full_name: Gelly, Sylvain
last_name: Gelly
- first_name: Bernhard
full_name: Schölkopf, Bernhard
last_name: Schölkopf
- first_name: Olivier
full_name: Bachem, Olivier
last_name: Bachem
citation:
ama: 'Locatello F, Bauer S, Lucic M, et al. Challenging common assumptions in the
unsupervised learning of disentangled representations. In: Proceedings of the
36th International Conference on Machine Learning. Vol 97. ML Research Press;
2019:4114-4124.'
apa: 'Locatello, F., Bauer, S., Lucic, M., Rätsch, G., Gelly, S., Schölkopf, B.,
& Bachem, O. (2019). Challenging common assumptions in the unsupervised learning
of disentangled representations. In Proceedings of the 36th International Conference
on Machine Learning (Vol. 97, pp. 4114–4124). Long Beach, CA, United States:
ML Research Press.'
chicago: Locatello, Francesco, Stefan Bauer, Mario Lucic, Gunnar Rätsch, Sylvain
Gelly, Bernhard Schölkopf, and Olivier Bachem. “Challenging Common Assumptions
in the Unsupervised Learning of Disentangled Representations.” In Proceedings
of the 36th International Conference on Machine Learning, 97:4114–24. ML Research
Press, 2019.
ieee: F. Locatello et al., “Challenging common assumptions in the unsupervised
learning of disentangled representations,” in Proceedings of the 36th International
Conference on Machine Learning, Long Beach, CA, United States, 2019, vol.
97, pp. 4114–4124.
ista: Locatello F, Bauer S, Lucic M, Rätsch G, Gelly S, Schölkopf B, Bachem O. 2019.
Challenging common assumptions in the unsupervised learning of disentangled representations.
Proceedings of the 36th International Conference on Machine Learning. International
Conference on Machine Learning vol. 97, 4114–4124.
mla: Locatello, Francesco, et al. “Challenging Common Assumptions in the Unsupervised
Learning of Disentangled Representations.” Proceedings of the 36th International
Conference on Machine Learning, vol. 97, ML Research Press, 2019, pp. 4114–24.
short: F. Locatello, S. Bauer, M. Lucic, G. Rätsch, S. Gelly, B. Schölkopf, O. Bachem,
in:, Proceedings of the 36th International Conference on Machine Learning, ML
Research Press, 2019, pp. 4114–4124.
conference:
end_date: 2019-06-15
location: Long Beach, CA, United States
name: International Conference on Machine Learning
start_date: 2019-06-10
date_created: 2023-08-22T14:13:08Z
date_published: 2019-06-09T00:00:00Z
date_updated: 2024-10-14T12:29:16Z
day: '09'
department:
- _id: FrLo
extern: '1'
external_id:
arxiv:
- '1811.12359'
intvolume: ' 97'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1811.12359
month: '06'
oa: 1
oa_version: Preprint
page: 4114-4124
publication: Proceedings of the 36th International Conference on Machine Learning
publication_status: published
publisher: ML Research Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Challenging common assumptions in the unsupervised learning of disentangled
representations
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 97
year: '2019'
...
---
_id: '14299'
abstract:
- lang: eng
text: DNA origami nano-objects are usually designed around generic single-stranded
“scaffolds”. Many properties of the target object are determined by details of
those generic scaffold sequences. Here, we enable designers to fully specify the
target structure not only in terms of desired 3D shape but also in terms of the
sequences used. To this end, we built design tools to construct scaffold sequences
de novo based on strand diagrams, and we developed scalable production methods
for creating design-specific scaffold strands with fully user-defined sequences.
We used 17 custom scaffolds having different lengths and sequence properties to
study the influence of sequence redundancy and sequence composition on multilayer
DNA origami assembly and to realize efficient one-pot assembly of multiscaffold
DNA origami objects. Furthermore, as examples for functionalized scaffolds, we
created a scaffold that enables direct, covalent cross-linking of DNA origami
via UV irradiation, and we built DNAzyme-containing scaffolds that allow postfolding
DNA origami domain separation.
article_processing_charge: No
article_type: original
author:
- first_name: Engelhardt
full_name: FAS, Engelhardt
last_name: FAS
- first_name: Florian M
full_name: Praetorius, Florian M
id: dfec9381-4341-11ee-8fd8-faa02bba7d62
last_name: Praetorius
- first_name: CH
full_name: Wachauf, CH
last_name: Wachauf
- first_name: G
full_name: Brüggenthies, G
last_name: Brüggenthies
- first_name: F
full_name: Kohler, F
last_name: Kohler
- first_name: B
full_name: Kick, B
last_name: Kick
- first_name: KL
full_name: Kadletz, KL
last_name: Kadletz
- first_name: PN
full_name: Pham, PN
last_name: Pham
- first_name: KL
full_name: Behler, KL
last_name: Behler
- first_name: T
full_name: Gerling, T
last_name: Gerling
- first_name: H
full_name: Dietz, H
last_name: Dietz
citation:
ama: FAS E, Praetorius FM, Wachauf C, et al. Custom-size, functional, and durable
DNA origami with design-specific scaffolds. ACS Nano. 2019;13(5):5015-5027.
doi:10.1021/acsnano.9b01025
apa: FAS, E., Praetorius, F. M., Wachauf, C., Brüggenthies, G., Kohler, F., Kick,
B., … Dietz, H. (2019). Custom-size, functional, and durable DNA origami with
design-specific scaffolds. ACS Nano. ACS Publications. https://doi.org/10.1021/acsnano.9b01025
chicago: FAS, Engelhardt, Florian M Praetorius, CH Wachauf, G Brüggenthies, F Kohler,
B Kick, KL Kadletz, et al. “Custom-Size, Functional, and Durable DNA Origami with
Design-Specific Scaffolds.” ACS Nano. ACS Publications, 2019. https://doi.org/10.1021/acsnano.9b01025.
ieee: E. FAS et al., “Custom-size, functional, and durable DNA origami with
design-specific scaffolds,” ACS Nano, vol. 13, no. 5. ACS Publications,
pp. 5015–5027, 2019.
ista: FAS E, Praetorius FM, Wachauf C, Brüggenthies G, Kohler F, Kick B, Kadletz
K, Pham P, Behler K, Gerling T, Dietz H. 2019. Custom-size, functional, and durable
DNA origami with design-specific scaffolds. ACS Nano. 13(5), 5015–5027.
mla: FAS, Engelhardt, et al. “Custom-Size, Functional, and Durable DNA Origami with
Design-Specific Scaffolds.” ACS Nano, vol. 13, no. 5, ACS Publications,
2019, pp. 5015–27, doi:10.1021/acsnano.9b01025.
short: E. FAS, F.M. Praetorius, C. Wachauf, G. Brüggenthies, F. Kohler, B. Kick,
K. Kadletz, P. Pham, K. Behler, T. Gerling, H. Dietz, ACS Nano 13 (2019) 5015–5027.
date_created: 2023-09-06T12:48:47Z
date_published: 2019-04-16T00:00:00Z
date_updated: 2023-11-07T12:17:31Z
day: '16'
doi: 10.1021/acsnano.9b01025
extern: '1'
external_id:
pmid:
- '30990672'
intvolume: ' 13'
issue: '5'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1021/acsnano.9b01025
month: '04'
oa: 1
oa_version: Published Version
page: 5015-5027
pmid: 1
publication: ACS Nano
publication_identifier:
eissn:
- 1936-086x
issn:
- 1936-0851
publication_status: published
publisher: ACS Publications
quality_controlled: '1'
scopus_import: '1'
status: public
title: Custom-size, functional, and durable DNA origami with design-specific scaffolds
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 13
year: '2019'
...
---
_id: '151'
abstract:
- lang: eng
text: We construct planar bi-Sobolev mappings whose local volume distortion is bounded
from below by a given function f∈Lp with p>1. More precisely, for any 1<q<(p+1)/2
we construct W1,q-bi-Sobolev maps with identity boundary conditions; for f∈L∞,
we provide bi-Lipschitz maps. The basic building block of our construction are
bi-Lipschitz maps which stretch a given compact subset of the unit square by a
given factor while preserving the boundary. The construction of these stretching
maps relies on a slight strengthening of the celebrated covering result of Alberti,
Csörnyei, and Preiss for measurable planar sets in the case of compact sets. We
apply our result to a model functional in nonlinear elasticity, the integrand
of which features fast blowup as the Jacobian determinant of the deformation becomes
small. For such functionals, the derivation of the equilibrium equations for minimizers
requires an additional regularization of test functions, which our maps provide.
article_processing_charge: No
arxiv: 1
author:
- first_name: Julian L
full_name: Fischer, Julian L
id: 2C12A0B0-F248-11E8-B48F-1D18A9856A87
last_name: Fischer
orcid: 0000-0002-0479-558X
- first_name: Olivier
full_name: Kneuss, Olivier
last_name: Kneuss
citation:
ama: Fischer JL, Kneuss O. Bi-Sobolev solutions to the prescribed Jacobian inequality
in the plane with L p data and applications to nonlinear elasticity. Journal
of Differential Equations. 2019;266(1):257-311. doi:10.1016/j.jde.2018.07.045
apa: Fischer, J. L., & Kneuss, O. (2019). Bi-Sobolev solutions to the prescribed
Jacobian inequality in the plane with L p data and applications to nonlinear elasticity.
Journal of Differential Equations. Elsevier. https://doi.org/10.1016/j.jde.2018.07.045
chicago: Fischer, Julian L, and Olivier Kneuss. “Bi-Sobolev Solutions to the Prescribed
Jacobian Inequality in the Plane with L p Data and Applications to Nonlinear Elasticity.”
Journal of Differential Equations. Elsevier, 2019. https://doi.org/10.1016/j.jde.2018.07.045.
ieee: J. L. Fischer and O. Kneuss, “Bi-Sobolev solutions to the prescribed Jacobian
inequality in the plane with L p data and applications to nonlinear elasticity,”
Journal of Differential Equations, vol. 266, no. 1. Elsevier, pp. 257–311,
2019.
ista: Fischer JL, Kneuss O. 2019. Bi-Sobolev solutions to the prescribed Jacobian
inequality in the plane with L p data and applications to nonlinear elasticity.
Journal of Differential Equations. 266(1), 257–311.
mla: Fischer, Julian L., and Olivier Kneuss. “Bi-Sobolev Solutions to the Prescribed
Jacobian Inequality in the Plane with L p Data and Applications to Nonlinear Elasticity.”
Journal of Differential Equations, vol. 266, no. 1, Elsevier, 2019, pp.
257–311, doi:10.1016/j.jde.2018.07.045.
short: J.L. Fischer, O. Kneuss, Journal of Differential Equations 266 (2019) 257–311.
date_created: 2018-12-11T11:44:54Z
date_published: 2019-01-05T00:00:00Z
date_updated: 2023-09-08T13:25:35Z
day: '05'
department:
- _id: JuFi
doi: 10.1016/j.jde.2018.07.045
external_id:
arxiv:
- '1408.1587'
isi:
- '000449108500010'
intvolume: ' 266'
isi: 1
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1408.1587
month: '01'
oa: 1
oa_version: Preprint
page: 257 - 311
publication: Journal of Differential Equations
publication_status: published
publisher: Elsevier
publist_id: '7770'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Bi-Sobolev solutions to the prescribed Jacobian inequality in the plane with
L p data and applications to nonlinear elasticity
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 266
year: '2019'
...
---
_id: '15147'
abstract:
- lang: eng
text: Circadian rhythms are generated by a transcription-based feedback loop where
CLOCK:BMAL1 drive transcription of their repressors (PER1/2, CRY1/2), which bind
to CLOCK:BMAL1 to close the feedback loop with ~24-hour periodicity. Here we identify
a key biochemical and structural difference between CRY1 and CRY2 that underlies
their differential strengths as transcriptional repressors. While both cryptochromes
bind the BMAL1 transactivation domain with similar affinity to sequester it from
coactivators, CRY1 is recruited with much higher affinity to the PAS domain core
of CLOCK:BMAL1, allowing it to serve as a stronger repressor that lengthens circadian
period. We identify a dynamic loop in the secondary pocket that regulates differential
binding of cryptochromes to the PAS domain core. Notably, PER2 binding remodels
this loop in CRY2 to enhance its affinity for CLOCK:BMAL1, explaining why CRY2
forms an obligate heterodimer with PER2, while CRY1 is capable of repressing CLOCK:BMAL1
both with and without PER2.
article_processing_charge: No
author:
- first_name: Jennifer L.
full_name: Fribourgh, Jennifer L.
last_name: Fribourgh
- first_name: Ashutosh
full_name: Srivastava, Ashutosh
last_name: Srivastava
- first_name: Colby R.
full_name: Sandate, Colby R.
last_name: Sandate
- first_name: Alicia
full_name: Michael, Alicia
id: 6437c950-2a03-11ee-914d-d6476dd7b75c
last_name: Michael
orcid: 0000-0002-6080-839X
- first_name: Peter L.
full_name: Hsu, Peter L.
last_name: Hsu
- first_name: Christin
full_name: Rakers, Christin
last_name: Rakers
- first_name: Leslee T.
full_name: Nguyen, Leslee T.
last_name: Nguyen
- first_name: Megan R.
full_name: Torgrimson, Megan R.
last_name: Torgrimson
- first_name: Gian Carlo G.
full_name: Parico, Gian Carlo G.
last_name: Parico
- first_name: Sarvind
full_name: Tripathi, Sarvind
last_name: Tripathi
- first_name: Ning
full_name: Zheng, Ning
last_name: Zheng
- first_name: Gabriel C.
full_name: Lander, Gabriel C.
last_name: Lander
- first_name: Tsuyoshi
full_name: Hirota, Tsuyoshi
last_name: Hirota
- first_name: Florence
full_name: Tama, Florence
last_name: Tama
- first_name: Carrie L.
full_name: Partch, Carrie L.
last_name: Partch
citation:
ama: Fribourgh JL, Srivastava A, Sandate CR, et al. Protein dynamics regulate distinct
biochemical properties of cryptochromes in mammalian circadian rhythms. bioRxiv.
2019. doi:10.1101/740464
apa: Fribourgh, J. L., Srivastava, A., Sandate, C. R., Michael, A. K., Hsu, P. L.,
Rakers, C., … Partch, C. L. (2019). Protein dynamics regulate distinct biochemical
properties of cryptochromes in mammalian circadian rhythms. bioRxiv. https://doi.org/10.1101/740464
chicago: Fribourgh, Jennifer L., Ashutosh Srivastava, Colby R. Sandate, Alicia K.
Michael, Peter L. Hsu, Christin Rakers, Leslee T. Nguyen, et al. “Protein Dynamics
Regulate Distinct Biochemical Properties of Cryptochromes in Mammalian Circadian
Rhythms.” BioRxiv, 2019. https://doi.org/10.1101/740464.
ieee: J. L. Fribourgh et al., “Protein dynamics regulate distinct biochemical
properties of cryptochromes in mammalian circadian rhythms,” bioRxiv. 2019.
ista: Fribourgh JL, Srivastava A, Sandate CR, Michael AK, Hsu PL, Rakers C, Nguyen
LT, Torgrimson MR, Parico GCG, Tripathi S, Zheng N, Lander GC, Hirota T, Tama
F, Partch CL. 2019. Protein dynamics regulate distinct biochemical properties
of cryptochromes in mammalian circadian rhythms. bioRxiv, 10.1101/740464.
mla: Fribourgh, Jennifer L., et al. “Protein Dynamics Regulate Distinct Biochemical
Properties of Cryptochromes in Mammalian Circadian Rhythms.” BioRxiv, 2019,
doi:10.1101/740464.
short: J.L. Fribourgh, A. Srivastava, C.R. Sandate, A.K. Michael, P.L. Hsu, C. Rakers,
L.T. Nguyen, M.R. Torgrimson, G.C.G. Parico, S. Tripathi, N. Zheng, G.C. Lander,
T. Hirota, F. Tama, C.L. Partch, BioRxiv (2019).
date_created: 2024-03-21T07:51:10Z
date_published: 2019-08-20T00:00:00Z
date_updated: 2025-09-24T09:00:03Z
day: '20'
doi: 10.1101/740464
extern: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1101/740464
month: '08'
oa: 1
oa_version: Preprint
publication: bioRxiv
publication_status: published
status: public
title: Protein dynamics regulate distinct biochemical properties of cryptochromes
in mammalian circadian rhythms
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2019'
...
---
_id: '15230'
abstract:
- lang: eng
text: 'We have searched the Gaia DR2 catalog for previously unknown hot white dwarfs
in the direction of young open star clusters. The aim of this experiment was to
try and extend the initial–final mass relation (IFMR) to somewhat higher masses,
potentially challenging the Chandrasekhar limit currently thought to be around
1.38 M⊙. We discovered a particularly interesting white dwarf in the direction
of the young ∼150 Myr old cluster Messier 47 (NGC 2422). All Gaia indicators (proper
motion, parallax, location in the Gaia color–magnitude diagram) suggest that it
is a cluster member. Its spectrum, obtained from Gemini-South, yields a number
of anomalies: it is a DB (helium-rich atmosphere) white dwarf, it has a large
magnetic field (2.5 MG), is of high mass (∼1.06 M⊙), and its colors are very peculiar—particularly
the redder ones (r, i, z and y), which suggests that it may have a late-type companion.
This may be the only magnetized, detached binary white dwarf with a non-degenerate
companion of any spectral type known in or out of a star cluster. If the white
dwarf is a cluster member, as all indicators suggest, its progenitor had a mass
just over 6 M⊙. It may, however, be telling an even more interesting story than
the one related to the IFMR, one about the origin of stellar magnetic fields,
SNe I, and gravitational waves from low-mass stellar systems.'
article_number: '75'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Harvey B.
full_name: Richer, Harvey B.
last_name: Richer
- first_name: Ronan
full_name: Kerr, Ronan
last_name: Kerr
- first_name: Jeremy
full_name: Heyl, Jeremy
last_name: Heyl
- first_name: Ilaria
full_name: Caiazzo, Ilaria
id: 8ae5b6e7-2a03-11ee-914d-b58ed7a3b47d
last_name: Caiazzo
orcid: 0000-0002-4770-5388
- first_name: Jeffrey
full_name: Cummings, Jeffrey
last_name: Cummings
- first_name: Pierre
full_name: Bergeron, Pierre
last_name: Bergeron
- first_name: Patrick
full_name: Dufour, Patrick
last_name: Dufour
citation:
ama: Richer HB, Kerr R, Heyl J, et al. A massive magnetic helium atmosphere white
dwarf binary in a young star cluster. The Astrophysical Journal. 2019;880(2).
doi:10.3847/1538-4357/ab2874
apa: Richer, H. B., Kerr, R., Heyl, J., Caiazzo, I., Cummings, J., Bergeron, P.,
& Dufour, P. (2019). A massive magnetic helium atmosphere white dwarf binary
in a young star cluster. The Astrophysical Journal. American Astronomical
Society. https://doi.org/10.3847/1538-4357/ab2874
chicago: Richer, Harvey B., Ronan Kerr, Jeremy Heyl, Ilaria Caiazzo, Jeffrey Cummings,
Pierre Bergeron, and Patrick Dufour. “A Massive Magnetic Helium Atmosphere White
Dwarf Binary in a Young Star Cluster.” The Astrophysical Journal. American
Astronomical Society, 2019. https://doi.org/10.3847/1538-4357/ab2874.
ieee: H. B. Richer et al., “A massive magnetic helium atmosphere white dwarf
binary in a young star cluster,” The Astrophysical Journal, vol. 880, no.
2. American Astronomical Society, 2019.
ista: Richer HB, Kerr R, Heyl J, Caiazzo I, Cummings J, Bergeron P, Dufour P. 2019.
A massive magnetic helium atmosphere white dwarf binary in a young star cluster.
The Astrophysical Journal. 880(2), 75.
mla: Richer, Harvey B., et al. “A Massive Magnetic Helium Atmosphere White Dwarf
Binary in a Young Star Cluster.” The Astrophysical Journal, vol. 880, no.
2, 75, American Astronomical Society, 2019, doi:10.3847/1538-4357/ab2874.
short: H.B. Richer, R. Kerr, J. Heyl, I. Caiazzo, J. Cummings, P. Bergeron, P. Dufour,
The Astrophysical Journal 880 (2019).
date_created: 2024-03-26T10:37:01Z
date_published: 2019-07-26T00:00:00Z
date_updated: 2024-04-04T14:06:08Z
day: '26'
doi: 10.3847/1538-4357/ab2874
extern: '1'
external_id:
arxiv:
- '1906.04727'
intvolume: ' 880'
issue: '2'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.1906.04727
month: '07'
oa: 1
oa_version: Preprint
publication: The Astrophysical Journal
publication_identifier:
eissn:
- 1538-4357
issn:
- 0004-637X
publication_status: published
publisher: American Astronomical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: A massive magnetic helium atmosphere white dwarf binary in a young star cluster
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 880
year: '2019'
...
---
_id: '15231'
abstract:
- lang: eng
text: In this paper, we analyze stellar proper motions in the core of the globular
cluster 47 Tucanae to explore the possibility of an intermediate-mass black hole
(IMBH) influence on the stellar dynamics. Our use of short-wavelength photometry
affords us an exceedingly clear view of stellar motions into the very center of
the crowded core, yielding proper motions for >50,000 stars in the central 2′.
We model the velocity dispersion profile of the cluster using an isotropic Jeans
model. The density distribution is taken as a central IMBH point mass added to
a combination of King templates. We individually model the general low-mass cluster
objects (main sequence/giant stars), as well as the concentrated populations of
heavy binary systems and dark stellar remnants. Using unbinned likelihood model
fitting, we find that the inclusion of the concentrated populations in our model
plays a crucial role in fitting for an IMBH mass. The concentrated binaries and
stellar-mass black holes (BHs) produce a sufficient velocity dispersion signal
in the core so as to make an IMBH unnecessary to fit the observations. We additionally
determine that a stellar-mass BH retention fraction of 8.5% becomes incompatible
with our observed velocities in the core.
article_number: '1'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Christopher R.
full_name: Mann, Christopher R.
last_name: Mann
- first_name: Harvey
full_name: Richer, Harvey
last_name: Richer
- first_name: Jeremy
full_name: Heyl, Jeremy
last_name: Heyl
- first_name: Jay
full_name: Anderson, Jay
last_name: Anderson
- first_name: Jason
full_name: Kalirai, Jason
last_name: Kalirai
- first_name: Ilaria
full_name: Caiazzo, Ilaria
id: 8ae5b6e7-2a03-11ee-914d-b58ed7a3b47d
last_name: Caiazzo
orcid: 0000-0002-4770-5388
- first_name: Swantje D.
full_name: Möhle, Swantje D.
last_name: Möhle
- first_name: Alan
full_name: Knee, Alan
last_name: Knee
- first_name: Holger
full_name: Baumgardt, Holger
last_name: Baumgardt
citation:
ama: Mann CR, Richer H, Heyl J, et al. A multimass velocity dispersion model of
47 Tucanae indicates no evidence for an intermediate-mass black hole. The Astrophysical
Journal. 2019;875(1). doi:10.3847/1538-4357/ab0e6d
apa: Mann, C. R., Richer, H., Heyl, J., Anderson, J., Kalirai, J., Caiazzo, I.,
… Baumgardt, H. (2019). A multimass velocity dispersion model of 47 Tucanae indicates
no evidence for an intermediate-mass black hole. The Astrophysical Journal.
American Astronomical Society. https://doi.org/10.3847/1538-4357/ab0e6d
chicago: Mann, Christopher R., Harvey Richer, Jeremy Heyl, Jay Anderson, Jason Kalirai,
Ilaria Caiazzo, Swantje D. Möhle, Alan Knee, and Holger Baumgardt. “A Multimass
Velocity Dispersion Model of 47 Tucanae Indicates No Evidence for an Intermediate-Mass
Black Hole.” The Astrophysical Journal. American Astronomical Society,
2019. https://doi.org/10.3847/1538-4357/ab0e6d.
ieee: C. R. Mann et al., “A multimass velocity dispersion model of 47 Tucanae
indicates no evidence for an intermediate-mass black hole,” The Astrophysical
Journal, vol. 875, no. 1. American Astronomical Society, 2019.
ista: Mann CR, Richer H, Heyl J, Anderson J, Kalirai J, Caiazzo I, Möhle SD, Knee
A, Baumgardt H. 2019. A multimass velocity dispersion model of 47 Tucanae indicates
no evidence for an intermediate-mass black hole. The Astrophysical Journal. 875(1),
1.
mla: Mann, Christopher R., et al. “A Multimass Velocity Dispersion Model of 47 Tucanae
Indicates No Evidence for an Intermediate-Mass Black Hole.” The Astrophysical
Journal, vol. 875, no. 1, 1, American Astronomical Society, 2019, doi:10.3847/1538-4357/ab0e6d.
short: C.R. Mann, H. Richer, J. Heyl, J. Anderson, J. Kalirai, I. Caiazzo, S.D.
Möhle, A. Knee, H. Baumgardt, The Astrophysical Journal 875 (2019).
date_created: 2024-03-26T10:37:20Z
date_published: 2019-04-08T00:00:00Z
date_updated: 2024-04-08T07:07:38Z
day: '08'
doi: 10.3847/1538-4357/ab0e6d
extern: '1'
external_id:
arxiv:
- '1807.03307'
intvolume: ' 875'
issue: '1'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.1807.03307
month: '04'
oa: 1
oa_version: Preprint
publication: The Astrophysical Journal
publication_identifier:
eissn:
- 1538-4357
issn:
- 0004-637X
publication_status: published
publisher: American Astronomical Society
quality_controlled: '1'
related_material:
link:
- relation: erratum
url: https://iopscience.iop.org/article/10.3847/1538-4357/ab84ea
scopus_import: '1'
status: public
title: A multimass velocity dispersion model of 47 Tucanae indicates no evidence for
an intermediate-mass black hole
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 875
year: '2019'
...
---
_id: '170'
abstract:
- lang: eng
text: Upper and lower bounds, of the expected order of magnitude, are obtained for
the number of rational points of bounded height on any quartic del Pezzo surface
over ℚ that contains a conic defined over ℚ .
arxiv: 1
author:
- first_name: Timothy D
full_name: Browning, Timothy D
id: 35827D50-F248-11E8-B48F-1D18A9856A87
last_name: Browning
orcid: 0000-0002-8314-0177
- first_name: Efthymios
full_name: Sofos, Efthymios
last_name: Sofos
citation:
ama: Browning TD, Sofos E. Counting rational points on quartic del Pezzo surfaces
with a rational conic. Mathematische Annalen. 2019;373(3-4):977-1016. doi:10.1007/s00208-018-1716-6
apa: Browning, T. D., & Sofos, E. (2019). Counting rational points on quartic
del Pezzo surfaces with a rational conic. Mathematische Annalen. Springer
Nature. https://doi.org/10.1007/s00208-018-1716-6
chicago: Browning, Timothy D, and Efthymios Sofos. “Counting Rational Points on
Quartic Del Pezzo Surfaces with a Rational Conic.” Mathematische Annalen.
Springer Nature, 2019. https://doi.org/10.1007/s00208-018-1716-6.
ieee: T. D. Browning and E. Sofos, “Counting rational points on quartic del Pezzo
surfaces with a rational conic,” Mathematische Annalen, vol. 373, no. 3–4.
Springer Nature, pp. 977–1016, 2019.
ista: Browning TD, Sofos E. 2019. Counting rational points on quartic del Pezzo
surfaces with a rational conic. Mathematische Annalen. 373(3–4), 977–1016.
mla: Browning, Timothy D., and Efthymios Sofos. “Counting Rational Points on Quartic
Del Pezzo Surfaces with a Rational Conic.” Mathematische Annalen, vol.
373, no. 3–4, Springer Nature, 2019, pp. 977–1016, doi:10.1007/s00208-018-1716-6.
short: T.D. Browning, E. Sofos, Mathematische Annalen 373 (2019) 977–1016.
date_created: 2018-12-11T11:44:59Z
date_published: 2019-04-01T00:00:00Z
date_updated: 2021-01-12T06:52:37Z
day: '01'
ddc:
- '510'
doi: 10.1007/s00208-018-1716-6
extern: '1'
external_id:
arxiv:
- '1609.09057'
file:
- access_level: open_access
checksum: 4061dc2fe99bee25d9adf2d2018cf608
content_type: application/pdf
creator: dernst
date_created: 2019-05-23T07:53:27Z
date_updated: 2020-07-14T12:45:12Z
file_id: '6479'
file_name: 2019_MathAnnalen_Browning.pdf
file_size: 712847
relation: main_file
file_date_updated: 2020-07-14T12:45:12Z
has_accepted_license: '1'
intvolume: ' 373'
issue: 3-4
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: 977-1016
publication: Mathematische Annalen
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Counting rational points on quartic del Pezzo surfaces with a rational conic
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: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 373
year: '2019'
...
---
OA_place: publisher
OA_type: hybrid
_id: '19473'
abstract:
- lang: eng
text: Leptin informs the brain about sufficiency of fuel stores. When insufficient,
leptin levels fall, triggering compensatory increases in appetite. Falling leptin
is first sensed by hypothalamic neurons, which then initiate adaptive responses.
With regard to hunger, it is thought that leptin-sensing neurons work entirely
via circuits within the central nervous system (CNS). Very unexpectedly, however,
we now show this is not the case. Instead, stimulation of hunger requires an intervening
endocrine step, namely activation of the hypothalamic–pituitary–adrenocortical
(HPA) axis. Increased corticosterone then activates AgRP neurons to fully increase
hunger. Importantly, this is true for 2 forms of low leptin-induced hunger, fasting
and poorly controlled type 1 diabetes. Hypoglycemia, which also stimulates hunger
by activating CNS neurons, albeit independently of leptin, similarly recruits
and requires this pathway by which HPA axis activity stimulates AgRP neurons.
Thus, HPA axis regulation of AgRP neurons is a previously underappreciated step
in homeostatic regulation of hunger.
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Rachel J.
full_name: Perry, Rachel J.
last_name: Perry
- first_name: Jon M.
full_name: Resch, Jon M.
last_name: Resch
- first_name: Amelia May Barnett
full_name: Douglass, Amelia May Barnett
id: de5f6fda-80fb-11ef-996f-a8c4ecd8e289
last_name: Douglass
orcid: 0000-0001-5398-6473
- first_name: Joseph C.
full_name: Madara, Joseph C.
last_name: Madara
- first_name: Aviva
full_name: Rabin-Court, Aviva
last_name: Rabin-Court
- first_name: Hakan
full_name: Kucukdereli, Hakan
last_name: Kucukdereli
- first_name: Chen
full_name: Wu, Chen
last_name: Wu
- first_name: Joongyu D.
full_name: Song, Joongyu D.
last_name: Song
- first_name: Bradford B.
full_name: Lowell, Bradford B.
last_name: Lowell
- first_name: Gerald I.
full_name: Shulman, Gerald I.
last_name: Shulman
citation:
ama: Perry RJ, Resch JM, Douglass AM, et al. Leptin’s hunger-suppressing effects
are mediated by the hypothalamic–pituitary–adrenocortical axis in rodents. Proceedings
of the National Academy of Sciences. 2019;116(27):13670-13679. doi:10.1073/pnas.1901795116
apa: Perry, R. J., Resch, J. M., Douglass, A. M., Madara, J. C., Rabin-Court, A.,
Kucukdereli, H., … Shulman, G. I. (2019). Leptin’s hunger-suppressing effects
are mediated by the hypothalamic–pituitary–adrenocortical axis in rodents. Proceedings
of the National Academy of Sciences. National Academy of Sciences. https://doi.org/10.1073/pnas.1901795116
chicago: Perry, Rachel J., Jon M. Resch, Amelia M. Douglass, Joseph C. Madara, Aviva
Rabin-Court, Hakan Kucukdereli, Chen Wu, Joongyu D. Song, Bradford B. Lowell,
and Gerald I. Shulman. “Leptin’s Hunger-Suppressing Effects Are Mediated by the
Hypothalamic–Pituitary–Adrenocortical Axis in Rodents.” Proceedings of the
National Academy of Sciences. National Academy of Sciences, 2019. https://doi.org/10.1073/pnas.1901795116.
ieee: R. J. Perry et al., “Leptin’s hunger-suppressing effects are mediated
by the hypothalamic–pituitary–adrenocortical axis in rodents,” Proceedings
of the National Academy of Sciences, vol. 116, no. 27. National Academy of
Sciences, pp. 13670–13679, 2019.
ista: Perry RJ, Resch JM, Douglass AM, Madara JC, Rabin-Court A, Kucukdereli H,
Wu C, Song JD, Lowell BB, Shulman GI. 2019. Leptin’s hunger-suppressing effects
are mediated by the hypothalamic–pituitary–adrenocortical axis in rodents. Proceedings
of the National Academy of Sciences. 116(27), 13670–13679.
mla: Perry, Rachel J., et al. “Leptin’s Hunger-Suppressing Effects Are Mediated
by the Hypothalamic–Pituitary–Adrenocortical Axis in Rodents.” Proceedings
of the National Academy of Sciences, vol. 116, no. 27, National Academy of
Sciences, 2019, pp. 13670–79, doi:10.1073/pnas.1901795116.
short: R.J. Perry, J.M. Resch, A.M. Douglass, J.C. Madara, A. Rabin-Court, H. Kucukdereli,
C. Wu, J.D. Song, B.B. Lowell, G.I. Shulman, Proceedings of the National Academy
of Sciences 116 (2019) 13670–13679.
date_created: 2025-04-03T12:30:19Z
date_published: 2019-07-02T00:00:00Z
date_updated: 2025-07-10T11:51:42Z
day: '02'
ddc:
- '570'
doi: 10.1073/pnas.1901795116
extern: '1'
external_id:
pmid:
- '31213533'
has_accepted_license: '1'
intvolume: ' 116'
issue: '27'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1073/pnas.1901795116
month: '07'
oa: 1
oa_version: Published Version
page: 13670-13679
pmid: 1
publication: Proceedings of the National Academy of Sciences
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Leptin’s hunger-suppressing effects are mediated by the hypothalamic–pituitary–adrenocortical
axis in rodents
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 116
year: '2019'
...
---
OA_place: repository
OA_type: green
_id: '19493'
abstract:
- lang: eng
text: "In 2016, Balakrishnan, Ho, Kaplan, Spicer, Stein and Weigandt produced a
database of elliptic curves over Q ordered by height in which they computed the
rank, the size of the 2-Selmer group, and other arithmetic invariants. They observed
that after a certain point, the average rank seemed to decrease as the height
increased. Here we consider the family of elliptic curves over \r\nQ whose rational
torsion subgroup is isomorphic to Z∕2Z×Z∕8Z. Conditional on GRH and BSD, we compute
the rank of 92% of the 202,461 curves with parameter height less than 103. We
also compute the size of the 2-Selmer group and the Tamagawa product, and prove
that their averages tend to infinity for this family."
article_processing_charge: No
article_type: original
author:
- first_name: Yik Tung
full_name: Chan, Yik Tung
id: c4c0afc8-9262-11ed-9231-d8b0bc743af1
last_name: Chan
orcid: 0000-0001-8467-4106
- first_name: Jeroen
full_name: Hanselman, Jeroen
last_name: Hanselman
- first_name: Wanlin
full_name: Li, Wanlin
last_name: Li
citation:
ama: Chan S, Hanselman J, Li W. Ranks, 2-Selmer groups, and Tamagawa numbers of
elliptic curves with ℤ∕2ℤ × ℤ∕8ℤ-torsion. The Open Book Series. 2019;2:173-189.
doi:10.2140/obs.2019.2.173
apa: Chan, S., Hanselman, J., & Li, W. (2019). Ranks, 2-Selmer groups, and Tamagawa
numbers of elliptic curves with ℤ∕2ℤ × ℤ∕8ℤ-torsion. The Open Book Series.
Mathematical Sciences Publishers. https://doi.org/10.2140/obs.2019.2.173
chicago: Chan, Stephanie, Jeroen Hanselman, and Wanlin Li. “Ranks, 2-Selmer Groups,
and Tamagawa Numbers of Elliptic Curves with ℤ∕2ℤ × ℤ∕8ℤ-Torsion.” The Open
Book Series. Mathematical Sciences Publishers, 2019. https://doi.org/10.2140/obs.2019.2.173.
ieee: S. Chan, J. Hanselman, and W. Li, “Ranks, 2-Selmer groups, and Tamagawa numbers
of elliptic curves with ℤ∕2ℤ × ℤ∕8ℤ-torsion,” The Open Book Series, vol.
2. Mathematical Sciences Publishers, pp. 173–189, 2019.
ista: Chan S, Hanselman J, Li W. 2019. Ranks, 2-Selmer groups, and Tamagawa numbers
of elliptic curves with ℤ∕2ℤ × ℤ∕8ℤ-torsion. The Open Book Series. 2, 173–189.
mla: Chan, Stephanie, et al. “Ranks, 2-Selmer Groups, and Tamagawa Numbers of Elliptic
Curves with ℤ∕2ℤ × ℤ∕8ℤ-Torsion.” The Open Book Series, vol. 2, Mathematical
Sciences Publishers, 2019, pp. 173–89, doi:10.2140/obs.2019.2.173.
short: S. Chan, J. Hanselman, W. Li, The Open Book Series 2 (2019) 173–189.
date_created: 2025-04-05T10:51:07Z
date_published: 2019-02-13T00:00:00Z
date_updated: 2025-07-10T11:51:49Z
day: '13'
doi: 10.2140/obs.2019.2.173
extern: '1'
external_id:
unknown:
- '1805.10709'
intvolume: ' 2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.1805.10709
month: '02'
oa: 1
oa_version: Preprint
page: 173-189
publication: The Open Book Series
publication_identifier:
eissn:
- 2329-907X
issn:
- 2329-9061
publication_status: published
publisher: Mathematical Sciences Publishers
quality_controlled: '1'
scopus_import: '1'
status: public
title: Ranks, 2-Selmer groups, and Tamagawa numbers of elliptic curves with ℤ∕2ℤ ×
ℤ∕8ℤ-torsion
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 2
year: '2019'
...
---
_id: '196'
abstract:
- lang: eng
text: 'The abelian sandpile serves as a model to study self-organized criticality,
a phenomenon occurring in biological, physical and social processes. The identity
of the abelian group is a fractal composed of self-similar patches, and its limit
is subject of extensive collaborative research. Here, we analyze the evolution
of the sandpile identity under harmonic fields of different orders. We show that
this evolution corresponds to periodic cycles through the abelian group characterized
by the smooth transformation and apparent conservation of the patches constituting
the identity. The dynamics induced by second and third order harmonics resemble
smooth stretchings, respectively translations, of the identity, while the ones
induced by fourth order harmonics resemble magnifications and rotations. Starting
with order three, the dynamics pass through extended regions of seemingly random
configurations which spontaneously reassemble into accentuated patterns. We show
that the space of harmonic functions projects to the extended analogue of the
sandpile group, thus providing a set of universal coordinates identifying configurations
between different domains. Since the original sandpile group is a subgroup of
the extended one, this directly implies that it admits a natural renormalization.
Furthermore, we show that the harmonic fields can be induced by simple Markov
processes, and that the corresponding stochastic dynamics show remarkable robustness
over hundreds of periods. Finally, we encode information into seemingly random
configurations, and decode this information with an algorithm requiring minimal
prior knowledge. Our results suggest that harmonic fields might split the sandpile
group into sub-sets showing different critical coefficients, and that it might
be possible to extend the fractal structure of the identity beyond the boundaries
of its domain. '
acknowledgement: "M.L. is grateful to the members of the C Guet and G Tkacik groups
for valuable comments and support. M.S. is grateful to Nikita Kalinin for inspiring
communications.\r\n"
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Moritz
full_name: Lang, Moritz
id: 29E0800A-F248-11E8-B48F-1D18A9856A87
last_name: Lang
- first_name: Mikhail
full_name: Shkolnikov, Mikhail
id: 35084A62-F248-11E8-B48F-1D18A9856A87
last_name: Shkolnikov
orcid: 0000-0002-4310-178X
citation:
ama: Lang M, Shkolnikov M. Harmonic dynamics of the Abelian sandpile. Proceedings
of the National Academy of Sciences of the United States of America. 2019;116(8):2821-2830.
doi:10.1073/pnas.1812015116
apa: Lang, M., & Shkolnikov, M. (2019). Harmonic dynamics of the Abelian sandpile.
Proceedings of the National Academy of Sciences of the United States of America.
National Academy of Sciences. https://doi.org/10.1073/pnas.1812015116
chicago: Lang, Moritz, and Mikhail Shkolnikov. “Harmonic Dynamics of the Abelian
Sandpile.” Proceedings of the National Academy of Sciences of the United States
of America. National Academy of Sciences, 2019. https://doi.org/10.1073/pnas.1812015116.
ieee: M. Lang and M. Shkolnikov, “Harmonic dynamics of the Abelian sandpile,” Proceedings
of the National Academy of Sciences of the United States of America, vol.
116, no. 8. National Academy of Sciences, pp. 2821–2830, 2019.
ista: Lang M, Shkolnikov M. 2019. Harmonic dynamics of the Abelian sandpile. Proceedings
of the National Academy of Sciences of the United States of America. 116(8), 2821–2830.
mla: Lang, Moritz, and Mikhail Shkolnikov. “Harmonic Dynamics of the Abelian Sandpile.”
Proceedings of the National Academy of Sciences of the United States of America,
vol. 116, no. 8, National Academy of Sciences, 2019, pp. 2821–30, doi:10.1073/pnas.1812015116.
short: M. Lang, M. Shkolnikov, Proceedings of the National Academy of Sciences of
the United States of America 116 (2019) 2821–2830.
corr_author: '1'
date_created: 2018-12-11T11:45:08Z
date_published: 2019-02-19T00:00:00Z
date_updated: 2026-06-18T18:17:35Z
day: '19'
ddc:
- '500'
- '570'
department:
- _id: CaGu
- _id: GaTk
- _id: TaHa
doi: 10.1073/pnas.1812015116
external_id:
arxiv:
- '1806.10823'
isi:
- '000459074400013'
pmid:
- ' 30728300'
intvolume: ' 116'
isi: 1
issue: '8'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1073/pnas.1812015116
month: '02'
oa: 1
oa_version: Published Version
page: 2821-2830
pmid: 1
publication: Proceedings of the National Academy of Sciences of the United States
of America
publication_identifier:
eissn:
- 1091-6490
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
related_material:
link:
- description: News on IST Webpage
relation: press_release
url: https://ist.ac.at/en/news/famous-sandpile-model-shown-to-move-like-a-traveling-sand-dune/
scopus_import: '1'
status: public
title: Harmonic dynamics of the Abelian sandpile
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 116
year: '2019'
...
---
_id: '441'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Nikita
full_name: Kalinin, Nikita
last_name: Kalinin
- first_name: Mikhail
full_name: Shkolnikov, Mikhail
id: 35084A62-F248-11E8-B48F-1D18A9856A87
last_name: Shkolnikov
orcid: 0000-0002-4310-178X
citation:
ama: Kalinin N, Shkolnikov M. Tropical formulae for summation over a part of SL(2,Z).
European Journal of Mathematics. 2019;5(3):909–928. doi:10.1007/s40879-018-0218-0
apa: Kalinin, N., & Shkolnikov, M. (2019). Tropical formulae for summation over
a part of SL(2,Z). European Journal of Mathematics. Springer Nature. https://doi.org/10.1007/s40879-018-0218-0
chicago: Kalinin, Nikita, and Mikhail Shkolnikov. “Tropical Formulae for Summation
over a Part of SL(2,Z).” European Journal of Mathematics. Springer Nature,
2019. https://doi.org/10.1007/s40879-018-0218-0.
ieee: N. Kalinin and M. Shkolnikov, “Tropical formulae for summation over a part
of SL(2,Z),” European Journal of Mathematics, vol. 5, no. 3. Springer Nature,
pp. 909–928, 2019.
ista: Kalinin N, Shkolnikov M. 2019. Tropical formulae for summation over a part
of SL(2,Z). European Journal of Mathematics. 5(3), 909–928.
mla: Kalinin, Nikita, and Mikhail Shkolnikov. “Tropical Formulae for Summation over
a Part of SL(2,Z).” European Journal of Mathematics, vol. 5, no. 3, Springer
Nature, 2019, pp. 909–928, doi:10.1007/s40879-018-0218-0.
short: N. Kalinin, M. Shkolnikov, European Journal of Mathematics 5 (2019) 909–928.
date_created: 2018-12-11T11:46:29Z
date_published: 2019-09-15T00:00:00Z
date_updated: 2021-01-12T07:56:46Z
day: '15'
department:
- _id: TaHa
doi: 10.1007/s40879-018-0218-0
ec_funded: 1
external_id:
arxiv:
- '1711.02089'
intvolume: ' 5'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1711.02089
month: '09'
oa: 1
oa_version: Preprint
page: 909–928
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '291734'
name: International IST Postdoc Fellowship Programme
publication: European Journal of Mathematics
publication_identifier:
eissn:
- 2199-6768
issn:
- 2199-675X
publication_status: published
publisher: Springer Nature
publist_id: '7382'
quality_controlled: '1'
scopus_import: 1
status: public
title: Tropical formulae for summation over a part of SL(2,Z)
type: journal_article
user_id: D865714E-FA4E-11E9-B85B-F5C5E5697425
volume: 5
year: '2019'
...
---
_id: '5'
abstract:
- lang: eng
text: In this paper, we introduce a quantum version of the wonderful compactification
of a group as a certain noncommutative projective scheme. Our approach stems from
the fact that the wonderful compactification encodes the asymptotics of matrix
coefficients, and from its realization as a GIT quotient of the Vinberg semigroup.
In order to define the wonderful compactification for a quantum group, we adopt
a generalized formalism of Proj categories in the spirit of Artin and Zhang. Key
to our construction is a quantum version of the Vinberg semigroup, which we define
as a q-deformation of a certain Rees algebra, compatible with a standard Poisson
structure. Furthermore, we discuss quantum analogues of the stratification of
the wonderful compactification by orbits for a certain group action, and provide
explicit computations in the case of SL2.
article_processing_charge: Yes (via OA deal)
author:
- first_name: Iordan V
full_name: Ganev, Iordan V
id: 447491B8-F248-11E8-B48F-1D18A9856A87
last_name: Ganev
citation:
ama: Ganev IV. The wonderful compactification for quantum groups. Journal of
the London Mathematical Society. 2019;99(3):778-806. doi:10.1112/jlms.12193
apa: Ganev, I. V. (2019). The wonderful compactification for quantum groups. Journal
of the London Mathematical Society. Wiley. https://doi.org/10.1112/jlms.12193
chicago: Ganev, Iordan V. “The Wonderful Compactification for Quantum Groups.” Journal
of the London Mathematical Society. Wiley, 2019. https://doi.org/10.1112/jlms.12193.
ieee: I. V. Ganev, “The wonderful compactification for quantum groups,” Journal
of the London Mathematical Society, vol. 99, no. 3. Wiley, pp. 778–806, 2019.
ista: Ganev IV. 2019. The wonderful compactification for quantum groups. Journal
of the London Mathematical Society. 99(3), 778–806.
mla: Ganev, Iordan V. “The Wonderful Compactification for Quantum Groups.” Journal
of the London Mathematical Society, vol. 99, no. 3, Wiley, 2019, pp. 778–806,
doi:10.1112/jlms.12193.
short: I.V. Ganev, Journal of the London Mathematical Society 99 (2019) 778–806.
date_created: 2018-12-11T11:44:06Z
date_published: 2019-06-01T00:00:00Z
date_updated: 2023-09-19T10:13:08Z
day: '01'
ddc:
- '510'
department:
- _id: TaHa
doi: 10.1112/jlms.12193
external_id:
isi:
- '000470025900008'
file:
- access_level: open_access
checksum: 1be56239b2cd740a0e9a084f773c22f6
content_type: application/pdf
creator: kschuh
date_created: 2020-01-07T13:31:53Z
date_updated: 2020-07-14T12:46:35Z
file_id: '7238'
file_name: 2019_Wiley_Ganev.pdf
file_size: 431754
relation: main_file
file_date_updated: 2020-07-14T12:46:35Z
has_accepted_license: '1'
intvolume: ' 99'
isi: 1
issue: '3'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: 778-806
publication: Journal of the London Mathematical Society
publication_status: published
publisher: Wiley
publist_id: '8052'
quality_controlled: '1'
scopus_import: '1'
status: public
title: The wonderful compactification for quantum groups
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: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 99
year: '2019'
...
---
_id: '5789'
abstract:
- lang: eng
text: Tissue morphogenesis is driven by mechanical forces that elicit changes in
cell size, shape and motion. The extent by which forces deform tissues critically
depends on the rheological properties of the recipient tissue. Yet, whether and
how dynamic changes in tissue rheology affect tissue morphogenesis and how they
are regulated within the developing organism remain unclear. Here, we show that
blastoderm spreading at the onset of zebrafish morphogenesis relies on a rapid,
pronounced and spatially patterned tissue fluidization. Blastoderm fluidization
is temporally controlled by mitotic cell rounding-dependent cell–cell contact
disassembly during the last rounds of cell cleavages. Moreover, fluidization is
spatially restricted to the central blastoderm by local activation of non-canonical
Wnt signalling within the blastoderm margin, increasing cell cohesion and thereby
counteracting the effect of mitotic rounding on contact disassembly. Overall,
our results identify a fluidity transition mediated by loss of cell cohesion as
a critical regulator of embryo morphogenesis.
acknowledged_ssus:
- _id: Bio
article_processing_charge: No
article_type: original
author:
- first_name: Nicoletta
full_name: Petridou, Nicoletta
id: 2A003F6C-F248-11E8-B48F-1D18A9856A87
last_name: Petridou
orcid: 0000-0002-8451-1195
- first_name: Silvia
full_name: Grigolon, Silvia
last_name: Grigolon
- first_name: Guillaume
full_name: Salbreux, Guillaume
last_name: Salbreux
- first_name: Edouard B
full_name: Hannezo, Edouard B
id: 3A9DB764-F248-11E8-B48F-1D18A9856A87
last_name: Hannezo
orcid: 0000-0001-6005-1561
- first_name: Carl-Philipp J
full_name: Heisenberg, Carl-Philipp J
id: 39427864-F248-11E8-B48F-1D18A9856A87
last_name: Heisenberg
orcid: 0000-0002-0912-4566
citation:
ama: Petridou N, Grigolon S, Salbreux G, Hannezo EB, Heisenberg C-PJ. Fluidization-mediated
tissue spreading by mitotic cell rounding and non-canonical Wnt signalling. Nature
Cell Biology. 2019;21:169–178. doi:10.1038/s41556-018-0247-4
apa: Petridou, N., Grigolon, S., Salbreux, G., Hannezo, E. B., & Heisenberg,
C.-P. J. (2019). Fluidization-mediated tissue spreading by mitotic cell rounding
and non-canonical Wnt signalling. Nature Cell Biology. Nature Publishing
Group. https://doi.org/10.1038/s41556-018-0247-4
chicago: Petridou, Nicoletta, Silvia Grigolon, Guillaume Salbreux, Edouard B Hannezo,
and Carl-Philipp J Heisenberg. “Fluidization-Mediated Tissue Spreading by Mitotic
Cell Rounding and Non-Canonical Wnt Signalling.” Nature Cell Biology. Nature
Publishing Group, 2019. https://doi.org/10.1038/s41556-018-0247-4.
ieee: N. Petridou, S. Grigolon, G. Salbreux, E. B. Hannezo, and C.-P. J. Heisenberg,
“Fluidization-mediated tissue spreading by mitotic cell rounding and non-canonical
Wnt signalling,” Nature Cell Biology, vol. 21. Nature Publishing Group,
pp. 169–178, 2019.
ista: Petridou N, Grigolon S, Salbreux G, Hannezo EB, Heisenberg C-PJ. 2019. Fluidization-mediated
tissue spreading by mitotic cell rounding and non-canonical Wnt signalling. Nature
Cell Biology. 21, 169–178.
mla: Petridou, Nicoletta, et al. “Fluidization-Mediated Tissue Spreading by Mitotic
Cell Rounding and Non-Canonical Wnt Signalling.” Nature Cell Biology, vol.
21, Nature Publishing Group, 2019, pp. 169–178, doi:10.1038/s41556-018-0247-4.
short: N. Petridou, S. Grigolon, G. Salbreux, E.B. Hannezo, C.-P.J. Heisenberg,
Nature Cell Biology 21 (2019) 169–178.
date_created: 2018-12-30T22:59:15Z
date_published: 2019-02-01T00:00:00Z
date_updated: 2025-07-10T11:52:59Z
day: '01'
ddc:
- '570'
department:
- _id: CaHe
- _id: EdHa
doi: 10.1038/s41556-018-0247-4
ec_funded: 1
external_id:
isi:
- '000457468300011'
pmid:
- '30559456'
file:
- access_level: open_access
checksum: e38523787b3bc84006f2793de99ad70f
content_type: application/pdf
creator: dernst
date_created: 2020-10-21T07:18:35Z
date_updated: 2020-10-21T07:18:35Z
file_id: '8685'
file_name: 2018_NatureCellBio_Petridou_accepted.pdf
file_size: 71590590
relation: main_file
success: 1
file_date_updated: 2020-10-21T07:18:35Z
has_accepted_license: '1'
intvolume: ' 21'
isi: 1
language:
- iso: eng
month: '02'
oa: 1
oa_version: Submitted Version
page: 169–178
pmid: 1
project:
- _id: 260F1432-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '742573'
name: Interaction and feedback between cell mechanics and fate specification in
vertebrate gastrulation
- _id: 253E54C8-B435-11E9-9278-68D0E5697425
grant_number: ALTF710-2016
name: Molecular mechanism of auxindriven formative divisions delineating lateral
root organogenesis in plants
publication: Nature Cell Biology
publication_identifier:
issn:
- 1465-7392
publication_status: published
publisher: Nature Publishing Group
quality_controlled: '1'
related_material:
link:
- description: News on IST Homepage
relation: press_release
url: https://ist.ac.at/en/news/when-a-fish-becomes-fluid/
scopus_import: '1'
status: public
title: Fluidization-mediated tissue spreading by mitotic cell rounding and non-canonical
Wnt signalling
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 21
year: '2019'
...
---
_id: '5790'
abstract:
- lang: eng
text: The partial representation extension problem is a recently introduced generalization
of the recognition problem. A circle graph is an intersection graph of chords
of a circle. We study the partial representation extension problem for circle
graphs, where the input consists of a graph G and a partial representation R′
giving some predrawn chords that represent an induced subgraph of G. The question
is whether one can extend R′ to a representation R of the entire graph G, that
is, whether one can draw the remaining chords into a partially predrawn representation
to obtain a representation of G. Our main result is an O(n3) time algorithm for
partial representation extension of circle graphs, where n is the number of vertices.
To show this, we describe the structure of all representations of a circle graph
using split decomposition. This can be of independent interest.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Steven
full_name: Chaplick, Steven
last_name: Chaplick
- first_name: Radoslav
full_name: Fulek, Radoslav
id: 39F3FFE4-F248-11E8-B48F-1D18A9856A87
last_name: Fulek
orcid: 0000-0001-8485-1774
- first_name: Pavel
full_name: Klavík, Pavel
last_name: Klavík
citation:
ama: Chaplick S, Fulek R, Klavík P. Extending partial representations of circle
graphs. Journal of Graph Theory. 2019;91(4):365-394. doi:10.1002/jgt.22436
apa: Chaplick, S., Fulek, R., & Klavík, P. (2019). Extending partial representations
of circle graphs. Journal of Graph Theory. Wiley. https://doi.org/10.1002/jgt.22436
chicago: Chaplick, Steven, Radoslav Fulek, and Pavel Klavík. “Extending Partial
Representations of Circle Graphs.” Journal of Graph Theory. Wiley, 2019.
https://doi.org/10.1002/jgt.22436.
ieee: S. Chaplick, R. Fulek, and P. Klavík, “Extending partial representations of
circle graphs,” Journal of Graph Theory, vol. 91, no. 4. Wiley, pp. 365–394,
2019.
ista: Chaplick S, Fulek R, Klavík P. 2019. Extending partial representations of
circle graphs. Journal of Graph Theory. 91(4), 365–394.
mla: Chaplick, Steven, et al. “Extending Partial Representations of Circle Graphs.”
Journal of Graph Theory, vol. 91, no. 4, Wiley, 2019, pp. 365–94, doi:10.1002/jgt.22436.
short: S. Chaplick, R. Fulek, P. Klavík, Journal of Graph Theory 91 (2019) 365–394.
date_created: 2018-12-30T22:59:15Z
date_published: 2019-08-01T00:00:00Z
date_updated: 2026-04-16T09:47:19Z
day: '01'
department:
- _id: UlWa
doi: 10.1002/jgt.22436
ec_funded: 1
external_id:
arxiv:
- '1309.2399'
isi:
- '000485392800004'
intvolume: ' 91'
isi: 1
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1309.2399
month: '08'
oa: 1
oa_version: Preprint
page: 365-394
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '291734'
name: International IST Postdoc Fellowship Programme
publication: Journal of Graph Theory
publication_identifier:
issn:
- 0364-9024
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: Extending partial representations of circle graphs
type: journal_article
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
volume: 91
year: '2019'
...