---
_id: '7122'
abstract:
- lang: eng
text: Data-rich applications in machine-learning and control have motivated an intense
research on large-scale optimization. Novel algorithms have been proposed and
shown to have optimal convergence rates in terms of iteration counts. However,
their practical performance is severely degraded by the cost of exchanging high-dimensional
gradient vectors between computing nodes. Several gradient compression heuristics
have recently been proposed to reduce communications, but few theoretical results
exist that quantify how they impact algorithm convergence. This paper establishes
and strengthens the convergence guarantees for gradient descent under a family
of gradient compression techniques. For convex optimization problems, we derive
admissible step sizes and quantify both the number of iterations and the number
of bits that need to be exchanged to reach a target accuracy. Finally, we validate
the performance of different gradient compression techniques in simulations. The
numerical results highlight the properties of different gradient compression algorithms
and confirm that fast convergence with limited information exchange is possible.
article_number: '8619625'
article_processing_charge: No
author:
- first_name: Sarit
full_name: Khirirat, Sarit
last_name: Khirirat
- first_name: Mikael
full_name: Johansson, Mikael
last_name: Johansson
- first_name: Dan-Adrian
full_name: Alistarh, Dan-Adrian
id: 4A899BFC-F248-11E8-B48F-1D18A9856A87
last_name: Alistarh
orcid: 0000-0003-3650-940X
citation:
ama: 'Khirirat S, Johansson M, Alistarh D-A. Gradient compression for communication-limited
convex optimization. In: 2018 IEEE Conference on Decision and Control.
IEEE; 2019. doi:10.1109/cdc.2018.8619625'
apa: 'Khirirat, S., Johansson, M., & Alistarh, D.-A. (2019). Gradient compression
for communication-limited convex optimization. In 2018 IEEE Conference on Decision
and Control. Miami Beach, FL, United States: IEEE. https://doi.org/10.1109/cdc.2018.8619625'
chicago: Khirirat, Sarit, Mikael Johansson, and Dan-Adrian Alistarh. “Gradient Compression
for Communication-Limited Convex Optimization.” In 2018 IEEE Conference on
Decision and Control. IEEE, 2019. https://doi.org/10.1109/cdc.2018.8619625.
ieee: S. Khirirat, M. Johansson, and D.-A. Alistarh, “Gradient compression for communication-limited
convex optimization,” in 2018 IEEE Conference on Decision and Control,
Miami Beach, FL, United States, 2019.
ista: 'Khirirat S, Johansson M, Alistarh D-A. 2019. Gradient compression for communication-limited
convex optimization. 2018 IEEE Conference on Decision and Control. CDC: Conference
on Decision and Control, 8619625.'
mla: Khirirat, Sarit, et al. “Gradient Compression for Communication-Limited Convex
Optimization.” 2018 IEEE Conference on Decision and Control, 8619625, IEEE,
2019, doi:10.1109/cdc.2018.8619625.
short: S. Khirirat, M. Johansson, D.-A. Alistarh, in:, 2018 IEEE Conference on Decision
and Control, IEEE, 2019.
conference:
end_date: 2018-12-19
location: Miami Beach, FL, United States
name: 'CDC: Conference on Decision and Control'
start_date: 2018-12-17
date_created: 2019-11-26T15:07:49Z
date_published: 2019-01-21T00:00:00Z
date_updated: 2023-09-06T11:14:55Z
day: '21'
department:
- _id: DaAl
doi: 10.1109/cdc.2018.8619625
external_id:
isi:
- '000458114800023'
isi: 1
language:
- iso: eng
month: '01'
oa_version: None
publication: 2018 IEEE Conference on Decision and Control
publication_identifier:
isbn:
- '9781538613955'
issn:
- 0743-1546
publication_status: published
publisher: IEEE
quality_controlled: '1'
scopus_import: '1'
status: public
title: Gradient compression for communication-limited convex optimization
type: conference
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2019'
...
---
_id: '7146'
abstract:
- lang: eng
text: Prevailing models of sex-chromosome evolution were largely inspired by the
stable and highly differentiated XY pairs of model organisms, such as those of
mammals and flies. Recent work has uncovered an incredible diversity of sex-determining
systems, bringing some of the assumptions of these traditional models into question.
One particular question that has arisen is what drives some sex chromosomes to
be maintained over millions of years and differentiate fully, while others are
replaced by new sex-determining chromosomes before differentiation has occurred.
Here, I review recent data on the variability of sex-determining genes and sex
chromosomes in different non-model vertebrates and invertebrates, and discuss
some theoretical models that have been put forward to account for this diversity.
article_processing_charge: No
article_type: original
author:
- first_name: Beatriz
full_name: Vicoso, Beatriz
id: 49E1C5C6-F248-11E8-B48F-1D18A9856A87
last_name: Vicoso
orcid: 0000-0002-4579-8306
citation:
ama: Vicoso B. Molecular and evolutionary dynamics of animal sex-chromosome turnover.
Nature Ecology & Evolution. 2019;3(12):1632-1641. doi:10.1038/s41559-019-1050-8
apa: Vicoso, B. (2019). Molecular and evolutionary dynamics of animal sex-chromosome
turnover. Nature Ecology & Evolution. Springer Nature. https://doi.org/10.1038/s41559-019-1050-8
chicago: Vicoso, Beatriz. “Molecular and Evolutionary Dynamics of Animal Sex-Chromosome
Turnover.” Nature Ecology & Evolution. Springer Nature, 2019. https://doi.org/10.1038/s41559-019-1050-8.
ieee: B. Vicoso, “Molecular and evolutionary dynamics of animal sex-chromosome turnover,”
Nature Ecology & Evolution, vol. 3, no. 12. Springer Nature, pp. 1632–1641,
2019.
ista: Vicoso B. 2019. Molecular and evolutionary dynamics of animal sex-chromosome
turnover. Nature Ecology & Evolution. 3(12), 1632–1641.
mla: Vicoso, Beatriz. “Molecular and Evolutionary Dynamics of Animal Sex-Chromosome
Turnover.” Nature Ecology & Evolution, vol. 3, no. 12, Springer Nature,
2019, pp. 1632–41, doi:10.1038/s41559-019-1050-8.
short: B. Vicoso, Nature Ecology & Evolution 3 (2019) 1632–1641.
date_created: 2019-12-04T16:05:25Z
date_published: 2019-11-25T00:00:00Z
date_updated: 2023-09-06T11:18:59Z
day: '25'
department:
- _id: BeVi
doi: 10.1038/s41559-019-1050-8
ec_funded: 1
external_id:
isi:
- '000500728800009'
intvolume: ' 3'
isi: 1
issue: '12'
language:
- iso: eng
month: '11'
oa_version: None
page: 1632-1641
project:
- _id: 250BDE62-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '715257'
name: Prevalence and Influence of Sexual Antagonism on Genome Evolution
publication: Nature Ecology & Evolution
publication_identifier:
issn:
- 2397-334X
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Molecular and evolutionary dynamics of animal sex-chromosome turnover
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 3
year: '2019'
...
---
_id: '7143'
abstract:
- lang: eng
text: Roots grow downwards parallel to the gravity vector, to anchor a plant in
soil and acquire water and nutrients, using a gravitropic mechanism dependent
on the asymmetric distribution of the phytohormone auxin. Recently, Chang et al.
demonstrate that asymmetric distribution of another phytohormone, cytokinin, directs
root growth towards higher water content.
article_processing_charge: No
article_type: original
author:
- first_name: Scott A
full_name: Sinclair, Scott A
id: 2D99FE6A-F248-11E8-B48F-1D18A9856A87
last_name: Sinclair
orcid: 0000-0002-4566-0593
- first_name: Jiří
full_name: Friml, Jiří
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: 'Sinclair SA, Friml J. Defying gravity: a plant’s quest for moisture. Cell
Research. 2019;29:965-966. doi:10.1038/s41422-019-0254-4'
apa: 'Sinclair, S. A., & Friml, J. (2019). Defying gravity: a plant’s quest
for moisture. Cell Research. Springer Nature. https://doi.org/10.1038/s41422-019-0254-4'
chicago: 'Sinclair, Scott A, and Jiří Friml. “Defying Gravity: A Plant’s Quest for
Moisture.” Cell Research. Springer Nature, 2019. https://doi.org/10.1038/s41422-019-0254-4.'
ieee: 'S. A. Sinclair and J. Friml, “Defying gravity: a plant’s quest for moisture,”
Cell Research, vol. 29. Springer Nature, pp. 965–966, 2019.'
ista: 'Sinclair SA, Friml J. 2019. Defying gravity: a plant’s quest for moisture.
Cell Research. 29, 965–966.'
mla: 'Sinclair, Scott A., and Jiří Friml. “Defying Gravity: A Plant’s Quest for
Moisture.” Cell Research, vol. 29, Springer Nature, 2019, pp. 965–66, doi:10.1038/s41422-019-0254-4.'
short: S.A. Sinclair, J. Friml, Cell Research 29 (2019) 965–966.
date_created: 2019-12-02T12:30:48Z
date_published: 2019-12-01T00:00:00Z
date_updated: 2023-09-06T11:20:58Z
day: '01'
department:
- _id: JiFr
doi: 10.1038/s41422-019-0254-4
external_id:
isi:
- '000500749600001'
pmid:
- '31745287'
intvolume: ' 29'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1038/s41422-019-0254-4
month: '12'
oa: 1
oa_version: Published Version
page: 965-966
pmid: 1
publication: Cell Research
publication_identifier:
eissn:
- 1748-7838
issn:
- 1001-0602
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Defying gravity: a plant''s quest for moisture'
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 29
year: '2019'
...
---
_id: '7156'
abstract:
- lang: eng
text: We propose an efficient microwave-photonic modulator as a resource for stationary
entangled microwave-optical fields and develop the theory for deterministic entanglement
generation and quantum state transfer in multi-resonant electro-optic systems.
The device is based on a single crystal whispering gallery mode resonator integrated
into a 3D-microwave cavity. The specific design relies on a new combination of
thin-film technology and conventional machining that is optimized for the lowest
dissipation rates in the microwave, optical, and mechanical domains. We extract
important device properties from finite-element simulations and predict continuous
variable entanglement generation rates on the order of a Mebit/s for optical pump
powers of only a few tens of microwatts. We compare the quantum state transfer
fidelities of coherent, squeezed, and non-Gaussian cat states for both teleportation
and direct conversion protocols under realistic conditions. Combining the unique
capabilities of circuit quantum electrodynamics with the resilience of fiber optic
communication could facilitate long-distance solid-state qubit networks, new methods
for quantum signal synthesis, quantum key distribution, and quantum enhanced detection,
as well as more power-efficient classical sensing and modulation.
article_number: '108'
article_processing_charge: No
article_type: original
author:
- first_name: Alfredo R
full_name: Rueda Sanchez, Alfredo R
id: 3B82B0F8-F248-11E8-B48F-1D18A9856A87
last_name: Rueda Sanchez
orcid: 0000-0001-6249-5860
- first_name: William J
full_name: Hease, William J
id: 29705398-F248-11E8-B48F-1D18A9856A87
last_name: Hease
orcid: 0000-0001-9868-2166
- first_name: Shabir
full_name: Barzanjeh, Shabir
id: 2D25E1F6-F248-11E8-B48F-1D18A9856A87
last_name: Barzanjeh
orcid: 0000-0003-0415-1423
- first_name: Johannes M
full_name: Fink, Johannes M
id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
last_name: Fink
orcid: 0000-0001-8112-028X
citation:
ama: Rueda Sanchez AR, Hease WJ, Barzanjeh S, Fink JM. Electro-optic entanglement
source for microwave to telecom quantum state transfer. npj Quantum Information.
2019;5. doi:10.1038/s41534-019-0220-5
apa: Rueda Sanchez, A. R., Hease, W. J., Barzanjeh, S., & Fink, J. M. (2019).
Electro-optic entanglement source for microwave to telecom quantum state transfer.
Npj Quantum Information. Springer Nature. https://doi.org/10.1038/s41534-019-0220-5
chicago: Rueda Sanchez, Alfredo R, William J Hease, Shabir Barzanjeh, and Johannes
M Fink. “Electro-Optic Entanglement Source for Microwave to Telecom Quantum State
Transfer.” Npj Quantum Information. Springer Nature, 2019. https://doi.org/10.1038/s41534-019-0220-5.
ieee: A. R. Rueda Sanchez, W. J. Hease, S. Barzanjeh, and J. M. Fink, “Electro-optic
entanglement source for microwave to telecom quantum state transfer,” npj Quantum
Information, vol. 5. Springer Nature, 2019.
ista: Rueda Sanchez AR, Hease WJ, Barzanjeh S, Fink JM. 2019. Electro-optic entanglement
source for microwave to telecom quantum state transfer. npj Quantum Information.
5, 108.
mla: Rueda Sanchez, Alfredo R., et al. “Electro-Optic Entanglement Source for Microwave
to Telecom Quantum State Transfer.” Npj Quantum Information, vol. 5, 108,
Springer Nature, 2019, doi:10.1038/s41534-019-0220-5.
short: A.R. Rueda Sanchez, W.J. Hease, S. Barzanjeh, J.M. Fink, Npj Quantum Information
5 (2019).
date_created: 2019-12-09T08:18:56Z
date_published: 2019-12-01T00:00:00Z
date_updated: 2023-09-06T11:22:39Z
day: '01'
ddc:
- '530'
department:
- _id: JoFi
doi: 10.1038/s41534-019-0220-5
ec_funded: 1
external_id:
arxiv:
- '1909.01470'
isi:
- '000502996200003'
file:
- access_level: open_access
checksum: 13e0ea1d4f9b5f5710780d9473364f58
content_type: application/pdf
creator: dernst
date_created: 2019-12-09T08:25:06Z
date_updated: 2020-07-14T12:47:50Z
file_id: '7157'
file_name: 2019_NPJ_Rueda.pdf
file_size: 1580132
relation: main_file
file_date_updated: 2020-07-14T12:47:50Z
has_accepted_license: '1'
intvolume: ' 5'
isi: 1
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
project:
- _id: 26336814-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '758053'
name: A Fiber Optic Transceiver for Superconducting Qubits
- _id: 258047B6-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '707438'
name: 'Microwave-to-Optical Quantum Link: Quantum Teleportation and Quantum Illumination
with cavity Optomechanics SUPEREOM'
- _id: 257EB838-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '732894'
name: Hybrid Optomechanical Technologies
- _id: 26927A52-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: F07105
name: Integrating superconducting quantum circuits
publication: npj Quantum Information
publication_identifier:
issn:
- 2056-6387
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Electro-optic entanglement source for microwave to telecom quantum state transfer
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: 5
year: '2019'
...
---
_id: '7165'
abstract:
- lang: eng
text: Cell division, movement and differentiation contribute to pattern formation
in developing tissues. This is the case in the vertebrate neural tube, in which
neurons differentiate in a characteristic pattern from a highly dynamic proliferating
pseudostratified epithelium. To investigate how progenitor proliferation and differentiation
affect cell arrangement and growth of the neural tube, we used experimental measurements
to develop a mechanical model of the apical surface of the neuroepithelium that
incorporates the effect of interkinetic nuclear movement and spatially varying
rates of neuronal differentiation. Simulations predict that tissue growth and
the shape of lineage-related clones of cells differ with the rate of differentiation.
Growth is isotropic in regions of high differentiation, but dorsoventrally biased
in regions of low differentiation. This is consistent with experimental observations.
The absence of directional signalling in the simulations indicates that global
mechanical constraints are sufficient to explain the observed differences in anisotropy.
This provides insight into how the tissue growth rate affects cell dynamics and
growth anisotropy and opens up possibilities to study the coupling between mechanics,
pattern formation and growth in the neural tube.
article_number: dev176297
article_processing_charge: No
article_type: original
author:
- first_name: Pilar
full_name: Guerrero, Pilar
last_name: Guerrero
- first_name: Ruben
full_name: Perez-Carrasco, Ruben
last_name: Perez-Carrasco
- first_name: Marcin P
full_name: Zagórski, Marcin P
id: 343DA0DC-F248-11E8-B48F-1D18A9856A87
last_name: Zagórski
orcid: 0000-0001-7896-7762
- first_name: David
full_name: Page, David
last_name: Page
- first_name: Anna
full_name: Kicheva, Anna
id: 3959A2A0-F248-11E8-B48F-1D18A9856A87
last_name: Kicheva
orcid: 0000-0003-4509-4998
- first_name: James
full_name: Briscoe, James
last_name: Briscoe
- first_name: Karen M.
full_name: Page, Karen M.
last_name: Page
citation:
ama: Guerrero P, Perez-Carrasco R, Zagórski MP, et al. Neuronal differentiation
influences progenitor arrangement in the vertebrate neuroepithelium. Development.
2019;146(23). doi:10.1242/dev.176297
apa: Guerrero, P., Perez-Carrasco, R., Zagórski, M. P., Page, D., Kicheva, A., Briscoe,
J., & Page, K. M. (2019). Neuronal differentiation influences progenitor arrangement
in the vertebrate neuroepithelium. Development. The Company of Biologists.
https://doi.org/10.1242/dev.176297
chicago: Guerrero, Pilar, Ruben Perez-Carrasco, Marcin P Zagórski, David Page, Anna
Kicheva, James Briscoe, and Karen M. Page. “Neuronal Differentiation Influences
Progenitor Arrangement in the Vertebrate Neuroepithelium.” Development.
The Company of Biologists, 2019. https://doi.org/10.1242/dev.176297.
ieee: P. Guerrero et al., “Neuronal differentiation influences progenitor
arrangement in the vertebrate neuroepithelium,” Development, vol. 146,
no. 23. The Company of Biologists, 2019.
ista: Guerrero P, Perez-Carrasco R, Zagórski MP, Page D, Kicheva A, Briscoe J, Page
KM. 2019. Neuronal differentiation influences progenitor arrangement in the vertebrate
neuroepithelium. Development. 146(23), dev176297.
mla: Guerrero, Pilar, et al. “Neuronal Differentiation Influences Progenitor Arrangement
in the Vertebrate Neuroepithelium.” Development, vol. 146, no. 23, dev176297,
The Company of Biologists, 2019, doi:10.1242/dev.176297.
short: P. Guerrero, R. Perez-Carrasco, M.P. Zagórski, D. Page, A. Kicheva, J. Briscoe,
K.M. Page, Development 146 (2019).
date_created: 2019-12-10T14:39:50Z
date_published: 2019-12-04T00:00:00Z
date_updated: 2023-09-06T11:26:36Z
day: '04'
ddc:
- '570'
department:
- _id: AnKi
doi: 10.1242/dev.176297
ec_funded: 1
external_id:
isi:
- '000507575700004'
pmid:
- '31784457'
file:
- access_level: open_access
checksum: b6533c37dc8fbd803ffeca216e0a8b8a
content_type: application/pdf
creator: dernst
date_created: 2019-12-13T07:34:06Z
date_updated: 2020-07-14T12:47:50Z
file_id: '7177'
file_name: 2019_Development_Guerrero.pdf
file_size: 7797881
relation: main_file
file_date_updated: 2020-07-14T12:47:50Z
has_accepted_license: '1'
intvolume: ' 146'
isi: 1
issue: '23'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: B6FC0238-B512-11E9-945C-1524E6697425
call_identifier: H2020
grant_number: '680037'
name: Coordination of Patterning And Growth In the Spinal Cord
publication: Development
publication_identifier:
eissn:
- 1477-9129
issn:
- 0950-1991
publication_status: published
publisher: The Company of Biologists
quality_controlled: '1'
scopus_import: '1'
status: public
title: Neuronal differentiation influences progenitor arrangement in the vertebrate
neuroepithelium
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: 146
year: '2019'
...