---
_id: '1001'
abstract:
- lang: eng
text: We present a computational approach for designing CurveUps, curvy shells that
form from an initially flat state. They consist of small rigid tiles that are
tightly held together by two pre-stretched elastic sheets attached to them. Our
method allows the realization of smooth, doubly curved surfaces that can be fabricated
as a flat piece. Once released, the restoring forces of the pre-stretched sheets
support the object to take shape in 3D. CurveUps are structurally stable in their
target configuration. The design process starts with a target surface. Our method
generates a tile layout in 2D and optimizes the distribution, shape, and attachment
areas of the tiles to obtain a configuration that is fabricable and in which the
curved up state closely matches the target. Our approach is based on an efficient
approximate model and a local optimization strategy for an otherwise intractable
nonlinear optimization problem. We demonstrate the effectiveness of our approach
for a wide range of shapes, all realized as physical prototypes.
alternative_title:
- ACM Transactions on Graphics
article_number: '64'
article_processing_charge: No
author:
- first_name: Ruslan
full_name: Guseinov, Ruslan
id: 3AB45EE2-F248-11E8-B48F-1D18A9856A87
last_name: Guseinov
orcid: 0000-0001-9819-5077
- first_name: Eder
full_name: Miguel, Eder
last_name: Miguel
- first_name: Bernd
full_name: Bickel, Bernd
id: 49876194-F248-11E8-B48F-1D18A9856A87
last_name: Bickel
orcid: 0000-0001-6511-9385
citation:
ama: 'Guseinov R, Miguel E, Bickel B. CurveUps: Shaping objects from flat plates
with tension-actuated curvature. In: Vol 36. ACM; 2017. doi:10.1145/3072959.3073709'
apa: 'Guseinov, R., Miguel, E., & Bickel, B. (2017). CurveUps: Shaping objects
from flat plates with tension-actuated curvature (Vol. 36). Presented at the SIGGRAPH:
Special Interest Group on Computer Graphics and Interactive Techniques, Los Angeles,
CA, United States: ACM. https://doi.org/10.1145/3072959.3073709'
chicago: 'Guseinov, Ruslan, Eder Miguel, and Bernd Bickel. “CurveUps: Shaping Objects
from Flat Plates with Tension-Actuated Curvature,” Vol. 36. ACM, 2017. https://doi.org/10.1145/3072959.3073709.'
ieee: 'R. Guseinov, E. Miguel, and B. Bickel, “CurveUps: Shaping objects from flat
plates with tension-actuated curvature,” presented at the SIGGRAPH: Special Interest
Group on Computer Graphics and Interactive Techniques, Los Angeles, CA, United
States, 2017, vol. 36, no. 4.'
ista: 'Guseinov R, Miguel E, Bickel B. 2017. CurveUps: Shaping objects from flat
plates with tension-actuated curvature. SIGGRAPH: Special Interest Group on Computer
Graphics and Interactive Techniques, ACM Transactions on Graphics, vol. 36, 64.'
mla: 'Guseinov, Ruslan, et al. CurveUps: Shaping Objects from Flat Plates with
Tension-Actuated Curvature. Vol. 36, no. 4, 64, ACM, 2017, doi:10.1145/3072959.3073709.'
short: R. Guseinov, E. Miguel, B. Bickel, in:, ACM, 2017.
conference:
end_date: 2017-08-25
location: Los Angeles, CA, United States
name: 'SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques'
start_date: 2017-08-19
date_created: 2018-12-11T11:49:38Z
date_published: 2017-01-01T00:00:00Z
date_updated: 2023-09-22T09:49:58Z
day: '01'
ddc:
- '003'
- '004'
department:
- _id: BeBi
doi: 10.1145/3072959.3073709
ec_funded: 1
external_id:
isi:
- '000406432100032'
file:
- access_level: open_access
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:10:24Z
date_updated: 2018-12-12T10:10:24Z
file_id: '4811'
file_name: IST-2018-1053-v1+1_CurveUp.pdf
file_size: 36159696
relation: main_file
file_date_updated: 2018-12-12T10:10:24Z
has_accepted_license: '1'
intvolume: ' 36'
isi: 1
issue: '4'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Submitted Version
project:
- _id: 25082902-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '645599'
name: Soft-bodied intelligence for Manipulation
- _id: 24F9549A-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '715767'
name: 'MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and
Modeling'
publication_status: published
publisher: ACM
publist_id: '6397'
pubrep_id: '1053'
quality_controlled: '1'
related_material:
record:
- id: '8366'
relation: dissertation_contains
status: public
status: public
title: 'CurveUps: Shaping objects from flat plates with tension-actuated curvature'
type: conference
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 36
year: '2017'
...
---
_id: '1003'
abstract:
- lang: eng
text: Network games (NGs) are played on directed graphs and are extensively used
in network design and analysis. Search problems for NGs include finding special
strategy profiles such as a Nash equilibrium and a globally optimal solution.
The networks modeled by NGs may be huge. In formal verification, abstraction has
proven to be an extremely effective technique for reasoning about systems with
big and even infinite state spaces. We describe an abstraction-refinement methodology
for reasoning about NGs. Our methodology is based on an abstraction function that
maps the state space of an NG to a much smaller state space. We search for a global
optimum and a Nash equilibrium by reasoning on an under- and an overapproximation
defined on top of this smaller state space. When the approximations are too coarse
to find such profiles, we refine the abstraction function. Our experimental results
demonstrate the efficiency of the methodology.
article_processing_charge: No
author:
- first_name: Guy
full_name: Avni, Guy
id: 463C8BC2-F248-11E8-B48F-1D18A9856A87
last_name: Avni
orcid: 0000-0001-5588-8287
- first_name: Shibashis
full_name: Guha, Shibashis
last_name: Guha
- first_name: Orna
full_name: Kupferman, Orna
last_name: Kupferman
citation:
ama: 'Avni G, Guha S, Kupferman O. An abstraction-refinement methodology for reasoning
about network games. In: AAAI Press; 2017:70-76. doi:10.24963/ijcai.2017/11'
apa: 'Avni, G., Guha, S., & Kupferman, O. (2017). An abstraction-refinement
methodology for reasoning about network games (pp. 70–76). Presented at the IJCAI:
International Joint Conference on Artificial Intelligence , Melbourne, Australia:
AAAI Press. https://doi.org/10.24963/ijcai.2017/11'
chicago: Avni, Guy, Shibashis Guha, and Orna Kupferman. “An Abstraction-Refinement
Methodology for Reasoning about Network Games,” 70–76. AAAI Press, 2017. https://doi.org/10.24963/ijcai.2017/11.
ieee: 'G. Avni, S. Guha, and O. Kupferman, “An abstraction-refinement methodology
for reasoning about network games,” presented at the IJCAI: International Joint
Conference on Artificial Intelligence , Melbourne, Australia, 2017, pp. 70–76.'
ista: 'Avni G, Guha S, Kupferman O. 2017. An abstraction-refinement methodology
for reasoning about network games. IJCAI: International Joint Conference on Artificial
Intelligence , 70–76.'
mla: Avni, Guy, et al. An Abstraction-Refinement Methodology for Reasoning about
Network Games. AAAI Press, 2017, pp. 70–76, doi:10.24963/ijcai.2017/11.
short: G. Avni, S. Guha, O. Kupferman, in:, AAAI Press, 2017, pp. 70–76.
conference:
end_date: 2017-08-25
location: Melbourne, Australia
name: 'IJCAI: International Joint Conference on Artificial Intelligence '
start_date: 2017-08-19
date_created: 2018-12-11T11:49:38Z
date_published: 2017-05-30T00:00:00Z
date_updated: 2023-09-22T09:49:00Z
day: '30'
ddc:
- '004'
department:
- _id: ToHe
doi: 10.24963/ijcai.2017/11
external_id:
isi:
- '000764137500011'
file:
- access_level: open_access
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:16:58Z
date_updated: 2018-12-12T10:16:58Z
file_id: '5249'
file_name: IST-2017-818-v1+1_allIJCAI_CR.pdf
file_size: 365172
relation: main_file
file_date_updated: 2018-12-12T10:16:58Z
has_accepted_license: '1'
isi: 1
language:
- iso: eng
month: '05'
oa: 1
oa_version: Submitted Version
page: 70 - 76
project:
- _id: 25F5A88A-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S11402-N23
name: Moderne Concurrency Paradigms
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: Z211
name: The Wittgenstein Prize
publication_identifier:
issn:
- '10450823'
publication_status: published
publisher: AAAI Press
publist_id: '6395'
pubrep_id: '818'
quality_controlled: '1'
related_material:
record:
- id: '6006'
relation: later_version
status: public
scopus_import: '1'
status: public
title: An abstraction-refinement methodology for reasoning about network games
type: conference
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2017'
...
---
_id: '1000'
abstract:
- lang: eng
text: 'We study probabilistic models of natural images and extend the autoregressive
family of PixelCNN models by incorporating latent variables. Subsequently, we
describe two new generative image models that exploit different image transformations
as latent variables: a quantized grayscale view of the image or a multi-resolution
image pyramid. The proposed models tackle two known shortcomings of existing PixelCNN
models: 1) their tendency to focus on low-level image details, while largely ignoring
high-level image information, such as object shapes, and 2) their computationally
costly procedure for image sampling. We experimentally demonstrate benefits of
our LatentPixelCNN models, in particular showing that they produce much more realistically
looking image samples than previous state-of-the-art probabilistic models. '
acknowledgement: We thank Tim Salimans for spotting a mistake in our preliminary arXiv
manuscript. This work was funded by the European Research Council under the European
Unions Seventh Framework Programme (FP7/2007-2013)/ERC grant agreement no 308036.
article_processing_charge: No
author:
- first_name: Alexander
full_name: Kolesnikov, Alexander
id: 2D157DB6-F248-11E8-B48F-1D18A9856A87
last_name: Kolesnikov
- first_name: Christoph
full_name: Lampert, Christoph
id: 40C20FD2-F248-11E8-B48F-1D18A9856A87
last_name: Lampert
orcid: 0000-0001-8622-7887
citation:
ama: 'Kolesnikov A, Lampert C. PixelCNN models with auxiliary variables for natural
image modeling. In: 34th International Conference on Machine Learning.
Vol 70. JMLR; 2017:1905-1914.'
apa: 'Kolesnikov, A., & Lampert, C. (2017). PixelCNN models with auxiliary variables
for natural image modeling. In 34th International Conference on Machine Learning
(Vol. 70, pp. 1905–1914). Sydney, Australia: JMLR.'
chicago: Kolesnikov, Alexander, and Christoph Lampert. “PixelCNN Models with Auxiliary
Variables for Natural Image Modeling.” In 34th International Conference on
Machine Learning, 70:1905–14. JMLR, 2017.
ieee: A. Kolesnikov and C. Lampert, “PixelCNN models with auxiliary variables for
natural image modeling,” in 34th International Conference on Machine Learning,
Sydney, Australia, 2017, vol. 70, pp. 1905–1914.
ista: 'Kolesnikov A, Lampert C. 2017. PixelCNN models with auxiliary variables for
natural image modeling. 34th International Conference on Machine Learning. ICML:
International Conference on Machine Learning vol. 70, 1905–1914.'
mla: Kolesnikov, Alexander, and Christoph Lampert. “PixelCNN Models with Auxiliary
Variables for Natural Image Modeling.” 34th International Conference on Machine
Learning, vol. 70, JMLR, 2017, pp. 1905–14.
short: A. Kolesnikov, C. Lampert, in:, 34th International Conference on Machine
Learning, JMLR, 2017, pp. 1905–1914.
conference:
end_date: 2017-08-11
location: Sydney, Australia
name: 'ICML: International Conference on Machine Learning'
start_date: 2017-08-06
date_created: 2018-12-11T11:49:37Z
date_published: 2017-08-01T00:00:00Z
date_updated: 2023-09-22T09:50:41Z
day: '01'
department:
- _id: ChLa
ec_funded: 1
external_id:
arxiv:
- '1612.08185'
isi:
- '000683309501102'
has_accepted_license: '1'
intvolume: ' 70'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1612.08185
month: '08'
oa: 1
oa_version: Submitted Version
page: 1905 - 1914
project:
- _id: 2532554C-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '308036'
name: Lifelong Learning of Visual Scene Understanding
publication: 34th International Conference on Machine Learning
publication_identifier:
isbn:
- 978-151085514-4
publication_status: published
publisher: JMLR
publist_id: '6398'
quality_controlled: '1'
scopus_import: '1'
status: public
title: PixelCNN models with auxiliary variables for natural image modeling
type: conference
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 70
year: '2017'
...
---
_id: '998'
abstract:
- lang: eng
text: 'A major open problem on the road to artificial intelligence is the development
of incrementally learning systems that learn about more and more concepts over
time from a stream of data. In this work, we introduce a new training strategy,
iCaRL, that allows learning in such a class-incremental way: only the training
data for a small number of classes has to be present at the same time and new
classes can be added progressively. iCaRL learns strong classifiers and a data
representation simultaneously. This distinguishes it from earlier works that were
fundamentally limited to fixed data representations and therefore incompatible
with deep learning architectures. We show by experiments on CIFAR-100 and ImageNet
ILSVRC 2012 data that iCaRL can learn many classes incrementally over a long period
of time where other strategies quickly fail. '
article_processing_charge: No
author:
- first_name: Sylvestre Alvise
full_name: Rebuffi, Sylvestre Alvise
last_name: Rebuffi
- first_name: Alexander
full_name: Kolesnikov, Alexander
id: 2D157DB6-F248-11E8-B48F-1D18A9856A87
last_name: Kolesnikov
- first_name: Georg
full_name: Sperl, Georg
id: 4DD40360-F248-11E8-B48F-1D18A9856A87
last_name: Sperl
- first_name: Christoph
full_name: Lampert, Christoph
id: 40C20FD2-F248-11E8-B48F-1D18A9856A87
last_name: Lampert
orcid: 0000-0001-8622-7887
citation:
ama: 'Rebuffi SA, Kolesnikov A, Sperl G, Lampert C. iCaRL: Incremental classifier
and representation learning. In: Vol 2017. IEEE; 2017:5533-5542. doi:10.1109/CVPR.2017.587'
apa: 'Rebuffi, S. A., Kolesnikov, A., Sperl, G., & Lampert, C. (2017). iCaRL:
Incremental classifier and representation learning (Vol. 2017, pp. 5533–5542).
Presented at the CVPR: Computer Vision and Pattern Recognition, Honolulu, HA,
United States: IEEE. https://doi.org/10.1109/CVPR.2017.587'
chicago: 'Rebuffi, Sylvestre Alvise, Alexander Kolesnikov, Georg Sperl, and Christoph
Lampert. “ICaRL: Incremental Classifier and Representation Learning,” 2017:5533–42.
IEEE, 2017. https://doi.org/10.1109/CVPR.2017.587.'
ieee: 'S. A. Rebuffi, A. Kolesnikov, G. Sperl, and C. Lampert, “iCaRL: Incremental
classifier and representation learning,” presented at the CVPR: Computer Vision
and Pattern Recognition, Honolulu, HA, United States, 2017, vol. 2017, pp. 5533–5542.'
ista: 'Rebuffi SA, Kolesnikov A, Sperl G, Lampert C. 2017. iCaRL: Incremental classifier
and representation learning. CVPR: Computer Vision and Pattern Recognition vol.
2017, 5533–5542.'
mla: 'Rebuffi, Sylvestre Alvise, et al. ICaRL: Incremental Classifier and Representation
Learning. Vol. 2017, IEEE, 2017, pp. 5533–42, doi:10.1109/CVPR.2017.587.'
short: S.A. Rebuffi, A. Kolesnikov, G. Sperl, C. Lampert, in:, IEEE, 2017, pp. 5533–5542.
conference:
end_date: 2017-07-26
location: Honolulu, HA, United States
name: 'CVPR: Computer Vision and Pattern Recognition'
start_date: 2017-07-21
date_created: 2018-12-11T11:49:37Z
date_published: 2017-04-14T00:00:00Z
date_updated: 2023-09-22T09:51:58Z
day: '14'
department:
- _id: ChLa
- _id: ChWo
doi: 10.1109/CVPR.2017.587
ec_funded: 1
external_id:
isi:
- '000418371405066'
intvolume: ' 2017'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1611.07725
month: '04'
oa: 1
oa_version: Submitted Version
page: 5533 - 5542
project:
- _id: 2532554C-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '308036'
name: Lifelong Learning of Visual Scene Understanding
publication_identifier:
isbn:
- 978-153860457-1
publication_status: published
publisher: IEEE
publist_id: '6400'
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'iCaRL: Incremental classifier and representation learning'
type: conference
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 2017
year: '2017'
...
---
_id: '990'
abstract:
- lang: eng
text: Assortative mating is an important driver of speciation in populations with
gene flow and is predicted to evolve under certain conditions in few-locus models.
However, the evolution of assortment is less understood for mating based on quantitative
traits, which are often characterized by high genetic variability and extensive
linkage disequilibrium between trait loci. We explore this scenario for a two-deme
model with migration, by considering a single polygenic trait subject to divergent
viability selection across demes, as well as assortative mating and sexual selection
within demes, and investigate how trait divergence is shaped by various evolutionary
forces. Our analysis reveals the existence of sharp thresholds of assortment strength,
at which divergence increases dramatically. We also study the evolution of assortment
via invasion of modifiers of mate discrimination and show that the ES assortment
strength has an intermediate value under a range of migration-selection parameters,
even in diverged populations, due to subtle effects which depend sensitively on
the extent of phenotypic variation within these populations. The evolutionary
dynamics of the polygenic trait is studied using the hypergeometric and infinitesimal
models. We further investigate the sensitivity of our results to the assumptions
of the hypergeometric model, using individual-based simulations.
article_processing_charge: No
author:
- first_name: Himani
full_name: Sachdeva, Himani
id: 42377A0A-F248-11E8-B48F-1D18A9856A87
last_name: Sachdeva
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
citation:
ama: Sachdeva H, Barton NH. Divergence and evolution of assortative mating in a
polygenic trait model of speciation with gene flow. Evolution; International
Journal of Organic Evolution. 2017;71(6):1478-1493. doi:10.1111/evo.13252
apa: Sachdeva, H., & Barton, N. H. (2017). Divergence and evolution of assortative
mating in a polygenic trait model of speciation with gene flow. Evolution;
International Journal of Organic Evolution. Wiley-Blackwell. https://doi.org/10.1111/evo.13252
chicago: Sachdeva, Himani, and Nicholas H Barton. “Divergence and Evolution of Assortative
Mating in a Polygenic Trait Model of Speciation with Gene Flow.” Evolution;
International Journal of Organic Evolution. Wiley-Blackwell, 2017. https://doi.org/10.1111/evo.13252.
ieee: H. Sachdeva and N. H. Barton, “Divergence and evolution of assortative mating
in a polygenic trait model of speciation with gene flow,” Evolution; International
Journal of Organic Evolution, vol. 71, no. 6. Wiley-Blackwell, pp. 1478–1493,
2017.
ista: Sachdeva H, Barton NH. 2017. Divergence and evolution of assortative mating
in a polygenic trait model of speciation with gene flow. Evolution; International
Journal of Organic Evolution. 71(6), 1478–1493.
mla: Sachdeva, Himani, and Nicholas H. Barton. “Divergence and Evolution of Assortative
Mating in a Polygenic Trait Model of Speciation with Gene Flow.” Evolution;
International Journal of Organic Evolution, vol. 71, no. 6, Wiley-Blackwell,
2017, pp. 1478–93, doi:10.1111/evo.13252.
short: H. Sachdeva, N.H. Barton, Evolution; International Journal of Organic Evolution
71 (2017) 1478–1493.
date_created: 2018-12-11T11:49:34Z
date_published: 2017-06-01T00:00:00Z
date_updated: 2023-09-22T09:55:13Z
day: '01'
ddc:
- '576'
department:
- _id: NiBa
doi: 10.1111/evo.13252
ec_funded: 1
external_id:
isi:
- '000403014800005'
pmid:
- '28419447'
file:
- access_level: open_access
checksum: 6d4c38cb1347fd43620d1736c6df5c79
content_type: application/pdf
creator: dernst
date_created: 2019-04-17T07:37:04Z
date_updated: 2020-07-14T12:48:18Z
file_id: '6329'
file_name: 2017_Evolution_Sachdeva_supplement.pdf
file_size: 625260
relation: main_file
- access_level: open_access
checksum: f1d90dd8831b44baf49b4dd176f263af
content_type: application/pdf
creator: dernst
date_created: 2019-04-17T07:37:04Z
date_updated: 2020-07-14T12:48:18Z
file_id: '6330'
file_name: 2017_Evolution_Sachdeva_article.pdf
file_size: 520110
relation: main_file
file_date_updated: 2020-07-14T12:48:18Z
has_accepted_license: '1'
intvolume: ' 71'
isi: 1
issue: '6'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Submitted Version
page: '1478 - 1493 '
pmid: 1
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '291734'
name: International IST Postdoc Fellowship Programme
- _id: 25B07788-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '250152'
name: Limits to selection in biology and in evolutionary computation
publication: Evolution; International Journal of Organic Evolution
publication_identifier:
issn:
- '00143820'
publication_status: published
publisher: Wiley-Blackwell
publist_id: '6409'
pubrep_id: '977'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Divergence and evolution of assortative mating in a polygenic trait model of
speciation with gene flow
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 71
year: '2017'
...
---
_id: '988'
abstract:
- lang: eng
text: The current-phase relation (CPR) of a Josephson junction (JJ) determines how
the supercurrent evolves with the superconducting phase difference across the
junction. Knowledge of the CPR is essential in order to understand the response
of a JJ to various external parameters. Despite the rising interest in ultraclean
encapsulated graphene JJs, the CPR of such junctions remains unknown. Here, we
use a fully gate-tunable graphene superconducting quantum intereference device
(SQUID) to determine the CPR of ballistic graphene JJs. Each of the two JJs in
the SQUID is made with graphene encapsulated in hexagonal boron nitride. By independently
controlling the critical current of the JJs, we can operate the SQUID either in
a symmetric or asymmetric configuration. The highly asymmetric SQUID allows us
to phase-bias one of the JJs and thereby directly obtain its CPR. The CPR is found
to be skewed, deviating significantly from a sinusoidal form. The skewness can
be tuned with the gate voltage and oscillates in antiphase with Fabry-Pérot resistance
oscillations of the ballistic graphene cavity. We compare our experiments with
tight-binding calculations that include realistic graphene-superconductor interfaces
and find a good qualitative agreement.
article_processing_charge: No
author:
- first_name: Gaurav
full_name: Nanda, Gaurav
last_name: Nanda
- first_name: Juan L
full_name: Aguilera Servin, Juan L
id: 2A67C376-F248-11E8-B48F-1D18A9856A87
last_name: Aguilera Servin
orcid: 0000-0002-2862-8372
- first_name: Péter
full_name: Rakyta, Péter
last_name: Rakyta
- first_name: Andor
full_name: Kormányos, Andor
last_name: Kormányos
- first_name: Reinhold
full_name: Kleiner, Reinhold
last_name: Kleiner
- first_name: Dieter
full_name: Koelle, Dieter
last_name: Koelle
- first_name: Kazuo
full_name: Watanabe, Kazuo
last_name: Watanabe
- first_name: Takashi
full_name: Taniguchi, Takashi
last_name: Taniguchi
- first_name: Lieven
full_name: Vandersypen, Lieven
last_name: Vandersypen
- first_name: Srijit
full_name: Goswami, Srijit
last_name: Goswami
citation:
ama: Nanda G, Aguilera Servin JL, Rakyta P, et al. Current-phase relation of ballistic
graphene Josephson junctions. Nano Letters. 2017;17(6):3396-3401. doi:10.1021/acs.nanolett.7b00097
apa: Nanda, G., Aguilera Servin, J. L., Rakyta, P., Kormányos, A., Kleiner, R.,
Koelle, D., … Goswami, S. (2017). Current-phase relation of ballistic graphene
Josephson junctions. Nano Letters. American Chemical Society. https://doi.org/10.1021/acs.nanolett.7b00097
chicago: Nanda, Gaurav, Juan L Aguilera Servin, Péter Rakyta, Andor Kormányos, Reinhold
Kleiner, Dieter Koelle, Kazuo Watanabe, Takashi Taniguchi, Lieven Vandersypen,
and Srijit Goswami. “Current-Phase Relation of Ballistic Graphene Josephson Junctions.”
Nano Letters. American Chemical Society, 2017. https://doi.org/10.1021/acs.nanolett.7b00097.
ieee: G. Nanda et al., “Current-phase relation of ballistic graphene Josephson
junctions,” Nano Letters, vol. 17, no. 6. American Chemical Society, pp.
3396–3401, 2017.
ista: Nanda G, Aguilera Servin JL, Rakyta P, Kormányos A, Kleiner R, Koelle D, Watanabe
K, Taniguchi T, Vandersypen L, Goswami S. 2017. Current-phase relation of ballistic
graphene Josephson junctions. Nano Letters. 17(6), 3396–3401.
mla: Nanda, Gaurav, et al. “Current-Phase Relation of Ballistic Graphene Josephson
Junctions.” Nano Letters, vol. 17, no. 6, American Chemical Society, 2017,
pp. 3396–401, doi:10.1021/acs.nanolett.7b00097.
short: G. Nanda, J.L. Aguilera Servin, P. Rakyta, A. Kormányos, R. Kleiner, D. Koelle,
K. Watanabe, T. Taniguchi, L. Vandersypen, S. Goswami, Nano Letters 17 (2017)
3396–3401.
date_created: 2018-12-11T11:49:33Z
date_published: 2017-05-05T00:00:00Z
date_updated: 2023-09-22T09:56:21Z
day: '05'
ddc:
- '621'
department:
- _id: NanoFab
doi: 10.1021/acs.nanolett.7b00097
external_id:
isi:
- '000403631600011'
file:
- access_level: open_access
checksum: 22021daa90cf13b01becd776838acb7b
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:13:50Z
date_updated: 2020-07-14T12:48:18Z
file_id: '5037'
file_name: IST-2017-826-v1+1_2017_Aguilera-Servin_Current.pdf
file_size: 508638
relation: main_file
file_date_updated: 2020-07-14T12:48:18Z
has_accepted_license: '1'
intvolume: ' 17'
isi: 1
issue: '6'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-nd/4.0/
month: '05'
oa: 1
oa_version: Published Version
page: 3396 - 3401
publication: Nano Letters
publication_identifier:
issn:
- '15306984'
publication_status: published
publisher: American Chemical Society
publist_id: '6412'
pubrep_id: '826'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Current-phase relation of ballistic graphene Josephson junctions
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: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 17
year: '2017'
...
---
_id: '993'
abstract:
- lang: eng
text: In real-world applications, observations are often constrained to a small
fraction of a system. Such spatial subsampling can be caused by the inaccessibility
or the sheer size of the system, and cannot be overcome by longer sampling. Spatial
subsampling can strongly bias inferences about a system’s aggregated properties.
To overcome the bias, we derive analytically a subsampling scaling framework that
is applicable to different observables, including distributions of neuronal avalanches,
of number of people infected during an epidemic outbreak, and of node degrees.
We demonstrate how to infer the correct distributions of the underlying full system,
how to apply it to distinguish critical from subcritical systems, and how to disentangle
subsampling and finite size effects. Lastly, we apply subsampling scaling to neuronal
avalanche models and to recordings from developing neural networks. We show that
only mature, but not young networks follow power-law scaling, indicating self-organization
to criticality during development.
article_number: '15140'
article_processing_charge: Yes (in subscription journal)
author:
- first_name: Anna
full_name: Levina (Martius), Anna
id: 35AF8020-F248-11E8-B48F-1D18A9856A87
last_name: Levina (Martius)
- first_name: Viola
full_name: Priesemann, Viola
last_name: Priesemann
citation:
ama: Levina (Martius) A, Priesemann V. Subsampling scaling. Nature Communications.
2017;8. doi:10.1038/ncomms15140
apa: Levina (Martius), A., & Priesemann, V. (2017). Subsampling scaling. Nature
Communications. Nature Publishing Group. https://doi.org/10.1038/ncomms15140
chicago: Levina (Martius), Anna, and Viola Priesemann. “Subsampling Scaling.” Nature
Communications. Nature Publishing Group, 2017. https://doi.org/10.1038/ncomms15140.
ieee: A. Levina (Martius) and V. Priesemann, “Subsampling scaling,” Nature Communications,
vol. 8. Nature Publishing Group, 2017.
ista: Levina (Martius) A, Priesemann V. 2017. Subsampling scaling. Nature Communications.
8, 15140.
mla: Levina (Martius), Anna, and Viola Priesemann. “Subsampling Scaling.” Nature
Communications, vol. 8, 15140, Nature Publishing Group, 2017, doi:10.1038/ncomms15140.
short: A. Levina (Martius), V. Priesemann, Nature Communications 8 (2017).
date_created: 2018-12-11T11:49:35Z
date_published: 2017-05-04T00:00:00Z
date_updated: 2023-09-22T09:54:07Z
day: '04'
ddc:
- '005'
- '571'
department:
- _id: GaTk
- _id: JoCs
doi: 10.1038/ncomms15140
ec_funded: 1
external_id:
isi:
- '000400560700001'
file:
- access_level: open_access
checksum: 9880212f8c4c53404c7c6fbf9023c53a
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:15:05Z
date_updated: 2020-07-14T12:48:19Z
file_id: '5122'
file_name: IST-2017-819-v1+1_2017_Levina_SubsamplingScaling.pdf
file_size: 746224
relation: main_file
file_date_updated: 2020-07-14T12:48:19Z
has_accepted_license: '1'
intvolume: ' 8'
isi: 1
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '05'
oa: 1
oa_version: Published Version
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '291734'
name: International IST Postdoc Fellowship Programme
publication: Nature Communications
publication_identifier:
issn:
- '20411723'
publication_status: published
publisher: Nature Publishing Group
publist_id: '6406'
pubrep_id: '819'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Subsampling scaling
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: 8
year: '2017'
...
---
_id: '995'
abstract:
- lang: eng
text: Recently it was shown that an impurity exchanging orbital angular momentum
with a surrounding bath can be described in terms of the angulon quasiparticle
[Phys. Rev. Lett. 118, 095301 (2017)]. The angulon consists of a quantum rotor
dressed by a many-particle field of boson excitations, and can be formed out of,
for example, a molecule or a nonspherical atom in superfluid helium, or out of
an electron coupled to lattice phonons or a Bose condensate. Here we develop an
approach to the angulon based on the path-integral formalism, which sets the ground
for a systematic, perturbative treatment of the angulon problem. The resulting
perturbation series can be interpreted in terms of Feynman diagrams, from which,
in turn, one can derive a set of diagrammatic rules. These rules extend the machinery
of the graphical theory of angular momentum - well known from theoretical atomic
spectroscopy - to the case where an environment with an infinite number of degrees
of freedom is present. In particular, we show that each diagram can be interpreted
as a 'skeleton', which enforces angular momentum conservation, dressed by an additional
many-body contribution. This connection between the angulon theory and the graphical
theory of angular momentum is particularly important as it allows to systematically
and substantially simplify the analytical representation of each diagram. In order
to exemplify the technique, we calculate the 1- and 2-loop contributions to the
angulon self-energy, the spectral function, and the quasiparticle weight. The
diagrammatic theory we develop paves the way to investigate next-to-leading order
quantities in a more compact way compared to the variational approaches.
article_number: '085410'
article_processing_charge: No
author:
- first_name: Giacomo
full_name: Bighin, Giacomo
id: 4CA96FD4-F248-11E8-B48F-1D18A9856A87
last_name: Bighin
orcid: 0000-0001-8823-9777
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
citation:
ama: Bighin G, Lemeshko M. Diagrammatic approach to orbital quantum impurities interacting
with a many-particle environment. Physical Review B - Condensed Matter and
Materials Physics. 2017;96(8). doi:10.1103/PhysRevB.96.085410
apa: Bighin, G., & Lemeshko, M. (2017). Diagrammatic approach to orbital quantum
impurities interacting with a many-particle environment. Physical Review B
- Condensed Matter and Materials Physics. American Physical Society. https://doi.org/10.1103/PhysRevB.96.085410
chicago: Bighin, Giacomo, and Mikhail Lemeshko. “Diagrammatic Approach to Orbital
Quantum Impurities Interacting with a Many-Particle Environment.” Physical
Review B - Condensed Matter and Materials Physics. American Physical Society,
2017. https://doi.org/10.1103/PhysRevB.96.085410.
ieee: G. Bighin and M. Lemeshko, “Diagrammatic approach to orbital quantum impurities
interacting with a many-particle environment,” Physical Review B - Condensed
Matter and Materials Physics, vol. 96, no. 8. American Physical Society, 2017.
ista: Bighin G, Lemeshko M. 2017. Diagrammatic approach to orbital quantum impurities
interacting with a many-particle environment. Physical Review B - Condensed Matter
and Materials Physics. 96(8), 085410.
mla: Bighin, Giacomo, and Mikhail Lemeshko. “Diagrammatic Approach to Orbital Quantum
Impurities Interacting with a Many-Particle Environment.” Physical Review B
- Condensed Matter and Materials Physics, vol. 96, no. 8, 085410, American
Physical Society, 2017, doi:10.1103/PhysRevB.96.085410.
short: G. Bighin, M. Lemeshko, Physical Review B - Condensed Matter and Materials
Physics 96 (2017).
date_created: 2018-12-11T11:49:36Z
date_published: 2017-08-07T00:00:00Z
date_updated: 2023-09-22T09:53:17Z
day: '07'
department:
- _id: MiLe
doi: 10.1103/PhysRevB.96.085410
external_id:
isi:
- '000407017100009'
intvolume: ' 96'
isi: 1
issue: '8'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1704.02616
month: '08'
oa: 1
oa_version: Submitted Version
project:
- _id: 26031614-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P29902
name: Quantum rotations in the presence of a many-body environment
publication: Physical Review B - Condensed Matter and Materials Physics
publication_identifier:
issn:
- '24699950'
publication_status: published
publisher: American Physical Society
publist_id: '6404'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Diagrammatic approach to orbital quantum impurities interacting with a many-particle
environment
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 96
year: '2017'
...
---
_id: '989'
abstract:
- lang: eng
text: We present a generalized optimal transport model in which the mass-preserving
constraint for the L2-Wasserstein distance is relaxed by introducing a source
term in the continuity equation. The source term is also incorporated in the path
energy by means of its squared L2-norm in time of a functional with linear growth
in space. This extension of the original transport model enables local density
modulations, which is a desirable feature in applications such as image warping
and blending. A key advantage of the use of a functional with linear growth in
space is that it allows for singular sources and sinks, which can be supported
on points or lines. On a technical level, the L2-norm in time ensures a disintegration
of the source in time, which we use to obtain the well-posedness of the model
and the existence of geodesic paths. The numerical discretization is based on
the proximal splitting approach [18] and selected numerical test cases show the
potential of the proposed approach. Furthermore, the approach is applied to the
warping and blending of textures.
alternative_title:
- LNCS
article_processing_charge: No
author:
- first_name: Jan
full_name: Maas, Jan
id: 4C5696CE-F248-11E8-B48F-1D18A9856A87
last_name: Maas
orcid: 0000-0002-0845-1338
- first_name: Martin
full_name: Rumpf, Martin
last_name: Rumpf
- first_name: Stefan
full_name: Simon, Stefan
last_name: Simon
citation:
ama: 'Maas J, Rumpf M, Simon S. Transport based image morphing with intensity modulation.
In: Lauze F, Dong Y, Bjorholm Dahl A, eds. Vol 10302. Springer; 2017:563-577.
doi:10.1007/978-3-319-58771-4_45'
apa: 'Maas, J., Rumpf, M., & Simon, S. (2017). Transport based image morphing
with intensity modulation. In F. Lauze, Y. Dong, & A. Bjorholm Dahl (Eds.)
(Vol. 10302, pp. 563–577). Presented at the SSVM: Scale Space and Variational
Methods in Computer Vision, Kolding, Denmark: Springer. https://doi.org/10.1007/978-3-319-58771-4_45'
chicago: Maas, Jan, Martin Rumpf, and Stefan Simon. “Transport Based Image Morphing
with Intensity Modulation.” edited by François Lauze, Yiqiu Dong, and Anders Bjorholm
Dahl, 10302:563–77. Springer, 2017. https://doi.org/10.1007/978-3-319-58771-4_45.
ieee: J. Maas, M. Rumpf, and S. Simon, “Transport based image morphing with intensity
modulation,” presented at the SSVM: Scale Space and Variational Methods in Computer
Vision, Kolding, Denmark, 2017, vol. 10302, pp. 563–577.
ista: Maas J, Rumpf M, Simon S. 2017. Transport based image morphing with intensity
modulation. SSVM: Scale Space and Variational Methods in Computer Vision, LNCS,
vol. 10302, 563–577.
mla: Maas, Jan, et al. Transport Based Image Morphing with Intensity Modulation.
Edited by François Lauze et al., vol. 10302, Springer, 2017, pp. 563–77, doi:10.1007/978-3-319-58771-4_45.
short: J. Maas, M. Rumpf, S. Simon, in:, F. Lauze, Y. Dong, A. Bjorholm Dahl (Eds.),
Springer, 2017, pp. 563–577.
conference:
end_date: 2017-06-08
location: Kolding, Denmark
name: 'SSVM: Scale Space and Variational Methods in Computer Vision'
start_date: 2017-06-04
date_created: 2018-12-11T11:49:34Z
date_published: 2017-05-18T00:00:00Z
date_updated: 2023-09-22T09:55:50Z
day: '18'
department:
- _id: JaMa
doi: 10.1007/978-3-319-58771-4_45
editor:
- first_name: François
full_name: Lauze, François
last_name: Lauze
- first_name: Yiqiu
full_name: Dong, Yiqiu
last_name: Dong
- first_name: Anders
full_name: Bjorholm Dahl, Anders
last_name: Bjorholm Dahl
external_id:
isi:
- '000432210900045'
intvolume: ' 10302'
isi: 1
language:
- iso: eng
month: '05'
oa_version: None
page: 563 - 577
publication_identifier:
issn:
- '03029743'
publication_status: published
publisher: Springer
publist_id: '6410'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Transport based image morphing with intensity modulation
type: conference
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 10302
year: '2017'
...
---
_id: '994'
abstract:
- lang: eng
text: The formation of vortices is usually considered to be the main mechanism of
angular momentum disposal in superfluids. Recently, it was predicted that a superfluid
can acquire angular momentum via an alternative, microscopic route -- namely,
through interaction with rotating impurities, forming so-called `angulon quasiparticles'
[Phys. Rev. Lett. 114, 203001 (2015)]. The angulon instabilities correspond to
transfer of a small number of angular momentum quanta from the impurity to the
superfluid, as opposed to vortex instabilities, where angular momentum is quantized
in units of ℏ per atom. Furthermore, since conventional impurities (such as molecules)
represent three-dimensional (3D) rotors, the angular momentum transferred is intrinsically
3D as well, as opposed to a merely planar rotation which is inherent to vortices.
Herein we show that the angulon theory can explain the anomalous broadening of
the spectroscopic lines observed for CH 3 and NH 3 molecules in superfluid
helium nanodroplets, thereby providing a fingerprint of the emerging angulon instabilities
in experiment.
article_processing_charge: No
author:
- first_name: Igor
full_name: Cherepanov, Igor
id: 339C7E5A-F248-11E8-B48F-1D18A9856A87
last_name: Cherepanov
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
citation:
ama: Cherepanov I, Lemeshko M. Fingerprints of angulon instabilities in the spectra
of matrix-isolated molecules. Physical Review Materials. 2017;1(3). doi:10.1103/PhysRevMaterials.1.035602
apa: Cherepanov, I., & Lemeshko, M. (2017). Fingerprints of angulon instabilities
in the spectra of matrix-isolated molecules. Physical Review Materials.
American Physical Society. https://doi.org/10.1103/PhysRevMaterials.1.035602
chicago: Cherepanov, Igor, and Mikhail Lemeshko. “Fingerprints of Angulon Instabilities
in the Spectra of Matrix-Isolated Molecules.” Physical Review Materials.
American Physical Society, 2017. https://doi.org/10.1103/PhysRevMaterials.1.035602.
ieee: I. Cherepanov and M. Lemeshko, “Fingerprints of angulon instabilities in the
spectra of matrix-isolated molecules,” Physical Review Materials, vol.
1, no. 3. American Physical Society, 2017.
ista: Cherepanov I, Lemeshko M. 2017. Fingerprints of angulon instabilities in the
spectra of matrix-isolated molecules. Physical Review Materials. 1(3).
mla: Cherepanov, Igor, and Mikhail Lemeshko. “Fingerprints of Angulon Instabilities
in the Spectra of Matrix-Isolated Molecules.” Physical Review Materials,
vol. 1, no. 3, American Physical Society, 2017, doi:10.1103/PhysRevMaterials.1.035602.
short: I. Cherepanov, M. Lemeshko, Physical Review Materials 1 (2017).
date_created: 2018-12-11T11:49:35Z
date_published: 2017-08-08T00:00:00Z
date_updated: 2023-09-22T09:53:42Z
day: '08'
department:
- _id: MiLe
doi: 10.1103/PhysRevMaterials.1.035602
ec_funded: 1
external_id:
isi:
- '000416564000004'
intvolume: ' 1'
isi: 1
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1705.09220
month: '08'
oa: 1
oa_version: Submitted Version
project:
- _id: 26031614-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P29902
name: Quantum rotations in the presence of a many-body environment
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '665385'
name: International IST Doctoral Program
publication: Physical Review Materials
publication_status: published
publisher: American Physical Society
publist_id: '6405'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Fingerprints of angulon instabilities in the spectra of matrix-isolated molecules
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 1
year: '2017'
...