---
_id: '18285'
author:
- first_name: Martin
full_name: Ziegler, Martin
last_name: Ziegler
citation:
ama: Ziegler M. Real Computability and Hypercomputation.; 2007.
apa: Ziegler, M. (2007). Real Computability and Hypercomputation.
bibtex: '@book{Ziegler_2007, title={Real Computability and Hypercomputation}, author={Ziegler,
Martin}, year={2007} }'
chicago: Ziegler, Martin. Real Computability and Hypercomputation, 2007.
ieee: M. Ziegler, Real Computability and Hypercomputation. 2007.
mla: Ziegler, Martin. Real Computability and Hypercomputation. 2007.
short: M. Ziegler, Real Computability and Hypercomputation, 2007.
date_created: 2020-08-25T13:11:38Z
date_updated: 2022-01-06T06:53:28Z
ddc:
- '000'
department:
- _id: '63'
file:
- access_level: closed
content_type: application/pdf
creator: koala
date_created: 2020-08-25T13:11:15Z
date_updated: 2020-08-25T13:11:15Z
file_id: '18286'
file_name: real-comp-2007.pdf
file_size: 2157961
relation: main_file
success: 1
file_date_updated: 2020-08-25T13:11:15Z
has_accepted_license: '1'
language:
- iso: eng
report_number: ' tr-ri-07-285'
status: public
title: Real Computability and Hypercomputation
type: report
user_id: '15415'
year: '2007'
...
---
_id: '18347'
abstract:
- lang: eng
text: "The validation of material flow models as well as the selection of promising
strategies for the generation of a successful experiment plan is a time-consuming
process. A new approach is presented, which supports the simulation expert in
his working process by giving him the opportunity to modify the simulated simulation
run and afterwards compare the effects of his modification with the original setting,
online and in one user interface, implemented by switching the visualizations
between the simulation runs or opening up to 5 parallel 3D windows. The method
developed therefore clones existing simulation runs online and allows the navigation
within these existing simulation runs. The method has been implemented and is
validated by a test model, which describes in detail the new working process of
a modeler. New research questions are derived from this work, which will define
following working steps.\r\n"
author:
- first_name: Matthias
full_name: Fischer, Matthias
id: '146'
last_name: Fischer
- first_name: 'Christoph '
full_name: 'Laroque, Christoph '
last_name: Laroque
- first_name: 'Daniel '
full_name: 'Huber, Daniel '
last_name: Huber
- first_name: 'Jens '
full_name: 'Krokowski, Jens '
last_name: Krokowski
- first_name: 'Bengt '
full_name: 'Mueck, Bengt '
last_name: Mueck
- first_name: 'Michael '
full_name: 'Kortenjan, Michael '
last_name: Kortenjan
- first_name: Mark
full_name: Aufenanger, Mark
last_name: Aufenanger
- first_name: Wilhelm
full_name: ' Dangelmaier, Wilhelm'
last_name: ' Dangelmaier'
citation:
ama: 'Fischer M, Laroque C, Huber D, et al. Interactive Refinement of a Material
Flow Simulation Model by Comparing Multiple Simulation Runs in one 3D Environment.
In: European Simulation and Modelling Conference (ESM 2007). ; 2007:499--505.'
apa: Fischer, M., Laroque, C., Huber, D., Krokowski, J., Mueck, B., Kortenjan, M.,
… Dangelmaier, W. (2007). Interactive Refinement of a Material Flow Simulation
Model by Comparing Multiple Simulation Runs in one 3D Environment. In European
Simulation and Modelling Conference (ESM 2007) (pp. 499--505).
bibtex: '@inproceedings{Fischer_Laroque_Huber_Krokowski_Mueck_Kortenjan_Aufenanger_
Dangelmaier_2007, title={Interactive Refinement of a Material Flow Simulation
Model by Comparing Multiple Simulation Runs in one 3D Environment}, booktitle={European
Simulation and Modelling Conference (ESM 2007)}, author={Fischer, Matthias and
Laroque, Christoph and Huber, Daniel and Krokowski, Jens and Mueck, Bengt and
Kortenjan, Michael and Aufenanger, Mark and Dangelmaier, Wilhelm}, year={2007},
pages={499--505} }'
chicago: Fischer, Matthias, Christoph Laroque, Daniel Huber, Jens Krokowski,
Bengt Mueck, Michael Kortenjan, Mark Aufenanger, and Wilhelm Dangelmaier. “Interactive
Refinement of a Material Flow Simulation Model by Comparing Multiple Simulation
Runs in One 3D Environment.” In European Simulation and Modelling Conference
(ESM 2007), 499--505, 2007.
ieee: M. Fischer et al., “Interactive Refinement of a Material Flow Simulation
Model by Comparing Multiple Simulation Runs in one 3D Environment,” in European
Simulation and Modelling Conference (ESM 2007), 2007, pp. 499--505.
mla: Fischer, Matthias, et al. “Interactive Refinement of a Material Flow Simulation
Model by Comparing Multiple Simulation Runs in One 3D Environment.” European
Simulation and Modelling Conference (ESM 2007), 2007, pp. 499--505.
short: 'M. Fischer, C. Laroque, D. Huber, J. Krokowski, B. Mueck, M. Kortenjan,
M. Aufenanger, W. Dangelmaier, in: European Simulation and Modelling Conference
(ESM 2007), 2007, pp. 499--505.'
date_created: 2020-08-26T09:23:24Z
date_updated: 2022-01-06T06:53:29Z
ddc:
- '004'
department:
- _id: '63'
file:
- access_level: closed
content_type: application/pdf
creator: koala
date_created: 2020-08-26T09:22:47Z
date_updated: 2020-08-26T09:22:47Z
file_id: '18348'
file_name: ESM07_final.pdf
file_size: 389588
relation: main_file
success: 1
file_date_updated: 2020-08-26T09:22:47Z
has_accepted_license: '1'
language:
- iso: eng
page: 499--505
publication: European Simulation and Modelling Conference (ESM 2007)
status: public
title: Interactive Refinement of a Material Flow Simulation Model by Comparing Multiple
Simulation Runs in one 3D Environment
type: conference
user_id: '15415'
year: '2007'
...
---
_id: '18349'
author:
- first_name: Wilhelm
full_name: Dangelmaier, Wilhelm
last_name: Dangelmaier
- first_name: 'Christoph '
full_name: ' Laroque, Christoph '
last_name: ' Laroque'
- first_name: Matthias
full_name: Fischer, Matthias
id: '146'
last_name: Fischer
citation:
ama: 'Dangelmaier W, Laroque C, Fischer M. Ein ganzheitlicher Ansatz zur immersiven
3D-Materialflusssimulation innerhalb der Digitalen Fabrik. In: Augmented &
Virtual Reality in Der Produktentstehung. Vol 209. Verlagsschriftenreihe des
Heinz Nixdorf Instituts, Paderborn. Verlagsschriftenreihe des Heinz Nixdorf Instituts,
Paderborn; 2007:95-110.'
apa: Dangelmaier, W., Laroque, C., & Fischer, M. (2007). Ein ganzheitlicher
Ansatz zur immersiven 3D-Materialflusssimulation innerhalb der Digitalen Fabrik.
Augmented & Virtual Reality in Der Produktentstehung, 209, 95–110.
bibtex: '@inproceedings{Dangelmaier_ Laroque_Fischer_2007, series={Verlagsschriftenreihe
des Heinz Nixdorf Instituts, Paderborn}, title={Ein ganzheitlicher Ansatz zur
immersiven 3D-Materialflusssimulation innerhalb der Digitalen Fabrik}, volume={209},
booktitle={Augmented & Virtual Reality in der Produktentstehung}, publisher={Verlagsschriftenreihe
des Heinz Nixdorf Instituts, Paderborn}, author={Dangelmaier, Wilhelm and Laroque,
Christoph and Fischer, Matthias}, year={2007}, pages={95–110}, collection={Verlagsschriftenreihe
des Heinz Nixdorf Instituts, Paderborn} }'
chicago: Dangelmaier, Wilhelm, Christoph Laroque, and Matthias Fischer. “Ein Ganzheitlicher
Ansatz Zur Immersiven 3D-Materialflusssimulation Innerhalb Der Digitalen Fabrik.”
In Augmented & Virtual Reality in Der Produktentstehung, 209:95–110.
Verlagsschriftenreihe Des Heinz Nixdorf Instituts, Paderborn. Verlagsschriftenreihe
des Heinz Nixdorf Instituts, Paderborn, 2007.
ieee: W. Dangelmaier, C. Laroque, and M. Fischer, “Ein ganzheitlicher Ansatz zur
immersiven 3D-Materialflusssimulation innerhalb der Digitalen Fabrik,” in Augmented
& Virtual Reality in der Produktentstehung, 2007, vol. 209, pp. 95–110.
mla: Dangelmaier, Wilhelm, et al. “Ein Ganzheitlicher Ansatz Zur Immersiven 3D-Materialflusssimulation
Innerhalb Der Digitalen Fabrik.” Augmented & Virtual Reality in Der Produktentstehung,
vol. 209, Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn, 2007,
pp. 95–110.
short: 'W. Dangelmaier, C. Laroque, M. Fischer, in: Augmented & Virtual Reality
in Der Produktentstehung, Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn,
2007, pp. 95–110.'
date_created: 2020-08-26T09:30:58Z
date_updated: 2022-01-06T06:53:29Z
department:
- _id: '63'
- _id: '26'
intvolume: ' 209'
language:
- iso: eng
page: 95-110
publication: Augmented & Virtual Reality in der Produktentstehung
publisher: Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn
series_title: Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn
status: public
title: Ein ganzheitlicher Ansatz zur immersiven 3D-Materialflusssimulation innerhalb
der Digitalen Fabrik
type: conference
user_id: '5786'
volume: 209
year: '2007'
...
---
_id: '1840'
author:
- first_name: Dereje H.
full_name: Woldegebreal, Dereje H.
last_name: Woldegebreal
- first_name: Holger
full_name: Karl, Holger
id: '126'
last_name: Karl
citation:
ama: 'Woldegebreal DH, Karl H. Multiple-Access Relay Channel with Network Coding
and Non-Ideal Source-Relay Channels. In: 2007 4th International Symposium on
Wireless Communication Systems. IEEE; 2007. doi:10.1109/iswcs.2007.4392437'
apa: Woldegebreal, D. H., & Karl, H. (2007). Multiple-Access Relay Channel with
Network Coding and Non-Ideal Source-Relay Channels. In 2007 4th International
Symposium on Wireless Communication Systems. IEEE. https://doi.org/10.1109/iswcs.2007.4392437
bibtex: '@inproceedings{Woldegebreal_Karl_2007, title={Multiple-Access Relay Channel
with Network Coding and Non-Ideal Source-Relay Channels}, DOI={10.1109/iswcs.2007.4392437},
booktitle={2007 4th International Symposium on Wireless Communication Systems},
publisher={IEEE}, author={Woldegebreal, Dereje H. and Karl, Holger}, year={2007}
}'
chicago: Woldegebreal, Dereje H., and Holger Karl. “Multiple-Access Relay Channel
with Network Coding and Non-Ideal Source-Relay Channels.” In 2007 4th International
Symposium on Wireless Communication Systems. IEEE, 2007. https://doi.org/10.1109/iswcs.2007.4392437.
ieee: D. H. Woldegebreal and H. Karl, “Multiple-Access Relay Channel with Network
Coding and Non-Ideal Source-Relay Channels,” in 2007 4th International Symposium
on Wireless Communication Systems, 2007.
mla: Woldegebreal, Dereje H., and Holger Karl. “Multiple-Access Relay Channel with
Network Coding and Non-Ideal Source-Relay Channels.” 2007 4th International
Symposium on Wireless Communication Systems, IEEE, 2007, doi:10.1109/iswcs.2007.4392437.
short: 'D.H. Woldegebreal, H. Karl, in: 2007 4th International Symposium on Wireless
Communication Systems, IEEE, 2007.'
date_created: 2018-03-27T13:00:30Z
date_updated: 2022-01-06T06:53:32Z
department:
- _id: '75'
doi: 10.1109/iswcs.2007.4392437
publication: 2007 4th International Symposium on Wireless Communication Systems
publication_identifier:
isbn:
- '9781424409785'
- '9781424409792'
publication_status: published
publisher: IEEE
status: public
title: Multiple-Access Relay Channel with Network Coding and Non-Ideal Source-Relay
Channels
type: conference
user_id: '15572'
year: '2007'
...
---
_id: '1842'
author:
- first_name: Holger
full_name: Karl, Holger
id: '126'
last_name: Karl
citation:
ama: 'Karl H. Optimizing sleeping intervals in preamble sampling MAC for WSNs. In:
Bern / Switzerland: Communication in Distributed Systems (KiVS), 2007 ITG-GI Conference;
2007.'
apa: 'Karl, H. (2007). Optimizing sleeping intervals in preamble sampling MAC for
WSNs. Bern / Switzerland: Communication in Distributed Systems (KiVS), 2007 ITG-GI
Conference.'
bibtex: '@inproceedings{Karl_2007, place={Bern / Switzerland}, title={Optimizing
sleeping intervals in preamble sampling MAC for WSNs}, publisher={Communication
in Distributed Systems (KiVS), 2007 ITG-GI Conference}, author={Karl, Holger},
year={2007} }'
chicago: 'Karl, Holger. “Optimizing Sleeping Intervals in Preamble Sampling MAC
for WSNs.” Bern / Switzerland: Communication in Distributed Systems (KiVS), 2007
ITG-GI Conference, 2007.'
ieee: H. Karl, “Optimizing sleeping intervals in preamble sampling MAC for WSNs,”
2007.
mla: Karl, Holger. Optimizing Sleeping Intervals in Preamble Sampling MAC for
WSNs. Communication in Distributed Systems (KiVS), 2007 ITG-GI Conference,
2007.
short: 'H. Karl, in: Communication in Distributed Systems (KiVS), 2007 ITG-GI Conference,
Bern / Switzerland, 2007.'
date_created: 2018-03-27T13:11:08Z
date_updated: 2022-01-06T06:53:32Z
department:
- _id: '75'
place: Bern / Switzerland
publisher: Communication in Distributed Systems (KiVS), 2007 ITG-GI Conference
status: public
title: Optimizing sleeping intervals in preamble sampling MAC for WSNs
type: conference
user_id: '15572'
year: '2007'
...
---
_id: '18572'
abstract:
- lang: eng
text: "We present random sampling algorithms that with probability at least 1 − δ
compute a (1 ±ε)-approximation of the clustering coefficient and of the number
of bipartite clique subgraphs of a graph given as an incidence stream of edges.
The space used by our algorithm to estimate the clustering coefficient is inversely
related to the clustering coefficient of the network itself. The space used by
our algorithm to compute the number K 3,3 of bipartite cliques is proportional
to the ratio between the number of K 1,3 and K 3,3 in the graph.\r\n\r\nSince
the space complexity depends only on the structure of the input graph and not
on the number of nodes, our algorithms scale very well with increasing graph size.
Therefore they provide a basic tool to analyze the structure of dense clusters
in large graphs and have many applications in the discovery of web communities,
the analysis of the structure of large social networks and the probing of frequent
patterns in large graphs.\r\n\r\nWe implemented both algorithms and evaluated
their performance on networks from different application domains and of different
size; The largest instance is a webgraph consisting of more than 135 million nodes
and 1 billion edges. Both algorithms compute accurate results in reasonable time
on the tested instances."
author:
- first_name: Luciana S.
full_name: Buriol, Luciana S.
last_name: Buriol
- first_name: Gereon
full_name: Frahling, Gereon
last_name: Frahling
- first_name: Stefano
full_name: Leonardi, Stefano
last_name: Leonardi
- first_name: Christian
full_name: Sohler, Christian
last_name: Sohler
citation:
ama: 'Buriol LS, Frahling G, Leonardi S, Sohler C. Estimating Clustering Indexes
in Data Streams. In: Proceedings of the 15th European Symposium on Algorithms
(ESA). Vol 4698. Lecture Notes in Computer Science. Berlin, Heidelberg: Springer;
2007:618-632. doi:10.1007/978-3-540-75520-3_55'
apa: 'Buriol, L. S., Frahling, G., Leonardi, S., & Sohler, C. (2007). Estimating
Clustering Indexes in Data Streams. In Proceedings of the 15th European Symposium
on Algorithms (ESA) (Vol. 4698, pp. 618–632). Berlin, Heidelberg: Springer.
https://doi.org/10.1007/978-3-540-75520-3_55'
bibtex: '@inproceedings{Buriol_Frahling_Leonardi_Sohler_2007, place={Berlin, Heidelberg},
series={Lecture Notes in Computer Science}, title={Estimating Clustering Indexes
in Data Streams}, volume={4698}, DOI={10.1007/978-3-540-75520-3_55},
booktitle={Proceedings of the 15th European Symposium on Algorithms (ESA)}, publisher={Springer},
author={Buriol, Luciana S. and Frahling, Gereon and Leonardi, Stefano and Sohler,
Christian}, year={2007}, pages={618–632}, collection={Lecture Notes in Computer
Science} }'
chicago: 'Buriol, Luciana S., Gereon Frahling, Stefano Leonardi, and Christian Sohler.
“Estimating Clustering Indexes in Data Streams.” In Proceedings of the 15th
European Symposium on Algorithms (ESA), 4698:618–32. Lecture Notes in Computer
Science. Berlin, Heidelberg: Springer, 2007. https://doi.org/10.1007/978-3-540-75520-3_55.'
ieee: L. S. Buriol, G. Frahling, S. Leonardi, and C. Sohler, “Estimating Clustering
Indexes in Data Streams,” in Proceedings of the 15th European Symposium on
Algorithms (ESA), 2007, vol. 4698, pp. 618–632.
mla: Buriol, Luciana S., et al. “Estimating Clustering Indexes in Data Streams.”
Proceedings of the 15th European Symposium on Algorithms (ESA), vol. 4698,
Springer, 2007, pp. 618–32, doi:10.1007/978-3-540-75520-3_55.
short: 'L.S. Buriol, G. Frahling, S. Leonardi, C. Sohler, in: Proceedings of the
15th European Symposium on Algorithms (ESA), Springer, Berlin, Heidelberg, 2007,
pp. 618–632.'
date_created: 2020-08-28T12:46:05Z
date_updated: 2022-01-06T06:53:40Z
department:
- _id: '63'
doi: 10.1007/978-3-540-75520-3_55
intvolume: ' 4698'
language:
- iso: eng
page: 618-632
place: Berlin, Heidelberg
publication: Proceedings of the 15th European Symposium on Algorithms (ESA)
publication_identifier:
isbn:
- '9783540755197'
publication_status: published
publisher: Springer
series_title: Lecture Notes in Computer Science
status: public
title: Estimating Clustering Indexes in Data Streams
type: conference
user_id: '15415'
volume: 4698
year: '2007'
...
---
_id: '18588'
author:
- first_name: Arno
full_name: Schindlmayr, Arno
id: '458'
last_name: Schindlmayr
orcid: 0000-0002-4855-071X
citation:
ama: 'Schindlmayr A. Interaction of radiation with matter. Part II: Light and electrons.
In: Urban K, Schneider CM, Brückel T, Blügel S, eds. Probing the Nanoworld
. Vol 34. Matter and Materials. Jülich: Forschungszentrum Jülich; 2007:A1.21-A1.36.'
apa: 'Schindlmayr, A. (2007). Interaction of radiation with matter. Part II: Light
and electrons. In K. Urban, C. M. Schneider, T. Brückel, & S. Blügel (Eds.),
Probing the Nanoworld (Vol. 34, p. A1.21-A1.36). Jülich: Forschungszentrum
Jülich.'
bibtex: '@inbook{Schindlmayr_2007, place={Jülich}, series={Matter and Materials},
title={Interaction of radiation with matter. Part II: Light and electrons}, volume={34},
booktitle={Probing the Nanoworld }, publisher={Forschungszentrum Jülich}, author={Schindlmayr,
Arno}, editor={Urban, Knut and Schneider, Claus Michael and Brückel, Thomas and
Blügel, StefanEditors}, year={2007}, pages={A1.21-A1.36}, collection={Matter and
Materials} }'
chicago: 'Schindlmayr, Arno. “Interaction of Radiation with Matter. Part II: Light
and Electrons.” In Probing the Nanoworld , edited by Knut Urban, Claus
Michael Schneider, Thomas Brückel, and Stefan Blügel, 34:A1.21-A1.36. Matter and
Materials. Jülich: Forschungszentrum Jülich, 2007.'
ieee: 'A. Schindlmayr, “Interaction of radiation with matter. Part II: Light and
electrons,” in Probing the Nanoworld , vol. 34, K. Urban, C. M. Schneider,
T. Brückel, and S. Blügel, Eds. Jülich: Forschungszentrum Jülich, 2007, p. A1.21-A1.36.'
mla: 'Schindlmayr, Arno. “Interaction of Radiation with Matter. Part II: Light and
Electrons.” Probing the Nanoworld , edited by Knut Urban et al., vol. 34,
Forschungszentrum Jülich, 2007, p. A1.21-A1.36.'
short: 'A. Schindlmayr, in: K. Urban, C.M. Schneider, T. Brückel, S. Blügel (Eds.),
Probing the Nanoworld , Forschungszentrum Jülich, Jülich, 2007, p. A1.21-A1.36.'
conference:
end_date: 2007-03-23
location: Jülich
name: 38th Spring School of the Institute of Solid State Research
start_date: 2007-03-12
date_created: 2020-08-28T16:18:39Z
date_updated: 2022-01-06T06:53:40Z
ddc:
- '530'
editor:
- first_name: Knut
full_name: Urban, Knut
last_name: Urban
- first_name: Claus Michael
full_name: Schneider, Claus Michael
last_name: Schneider
- first_name: Thomas
full_name: Brückel, Thomas
last_name: Brückel
- first_name: Stefan
full_name: Blügel, Stefan
last_name: Blügel
extern: '1'
file:
- access_level: request
content_type: application/pdf
creator: schindlm
date_created: 2020-10-05T11:43:03Z
date_updated: 2022-01-06T06:53:40Z
description: © 2007 Forschungszentrum Jülich
file_id: '19878'
file_name: A01-Schindlmayr.pdf
file_size: 281378
relation: main_file
title: 'Interaction of radiation with matter: Part II: Light and electrons'
file_date_updated: 2022-01-06T06:53:40Z
has_accepted_license: '1'
intvolume: ' 34'
language:
- iso: eng
main_file_link:
- url: http://juser.fz-juelich.de/record/811870
page: A1.21-A1.36
place: Jülich
publication: 'Probing the Nanoworld '
publication_identifier:
isbn:
- 978-3-89336-462-6
issn:
- 1433-5506
publication_status: published
publisher: Forschungszentrum Jülich
series_title: Matter and Materials
status: public
title: 'Interaction of radiation with matter. Part II: Light and electrons'
type: book_chapter
user_id: '458'
volume: 34
year: '2007'
...
---
_id: '18589'
abstract:
- lang: eng
text: For the calculation of neutral excitations, time-dependent density functional
theory (TDDFT) is an exact reformulation of the many-body time-dependent Schrödinger
equation, based on knowledge of the density instead of the many-body wavefunction.
The density can be determined in an efficient scheme by solving one-particle non-interacting
Schrödinger equations—the Kohn–Sham equations. The complication of the problem
is hidden in the—unknown—time-dependent exchange and correlation potential that
appears in the Kohn–Sham equations and for which it is essential to find good
approximations. Many approximations have been suggested and tested for finite
systems, where even the very simple adiabatic local-density approximation (ALDA)
has often proved to be successful. In the case of solids, ALDA fails to reproduce
optical absorption spectra, which are instead well described by solving the Bethe–Salpeter
equation of many-body perturbation theory (MBPT). On the other hand, ALDA can
lead to excellent results for loss functions (at vanishing and finite momentum
transfer). In view of this and thanks to recent successful developments of improved
linear-response kernels derived from MBPT, TDDFT is today considered a promising
alternative to MBPT for the calculation of electronic spectra, even for solids.
After reviewing the fundamentals of TDDFT within linear response, we discuss different
approaches and a variety of applications to extended systems.
article_type: review
author:
- first_name: Silvana
full_name: Botti, Silvana
last_name: Botti
- first_name: Arno
full_name: Schindlmayr, Arno
id: '458'
last_name: Schindlmayr
orcid: 0000-0002-4855-071X
- first_name: Rodolfo
full_name: Del Sole, Rodolfo
last_name: Del Sole
- first_name: Lucia
full_name: Reining, Lucia
last_name: Reining
citation:
ama: Botti S, Schindlmayr A, Del Sole R, Reining L. Time-dependent density-functional
theory for extended systems. Reports on Progress in Physics. 2007;70(3):357-407.
doi:10.1088/0034-4885/70/3/r02
apa: Botti, S., Schindlmayr, A., Del Sole, R., & Reining, L. (2007). Time-dependent
density-functional theory for extended systems. Reports on Progress in Physics,
70(3), 357–407. https://doi.org/10.1088/0034-4885/70/3/r02
bibtex: '@article{Botti_Schindlmayr_Del Sole_Reining_2007, title={Time-dependent
density-functional theory for extended systems}, volume={70}, DOI={10.1088/0034-4885/70/3/r02},
number={3}, journal={Reports on Progress in Physics}, publisher={IOP Publishing},
author={Botti, Silvana and Schindlmayr, Arno and Del Sole, Rodolfo and Reining,
Lucia}, year={2007}, pages={357–407} }'
chicago: 'Botti, Silvana, Arno Schindlmayr, Rodolfo Del Sole, and Lucia Reining.
“Time-Dependent Density-Functional Theory for Extended Systems.” Reports on
Progress in Physics 70, no. 3 (2007): 357–407. https://doi.org/10.1088/0034-4885/70/3/r02.'
ieee: S. Botti, A. Schindlmayr, R. Del Sole, and L. Reining, “Time-dependent density-functional
theory for extended systems,” Reports on Progress in Physics, vol. 70,
no. 3, pp. 357–407, 2007.
mla: Botti, Silvana, et al. “Time-Dependent Density-Functional Theory for Extended
Systems.” Reports on Progress in Physics, vol. 70, no. 3, IOP Publishing,
2007, pp. 357–407, doi:10.1088/0034-4885/70/3/r02.
short: S. Botti, A. Schindlmayr, R. Del Sole, L. Reining, Reports on Progress in
Physics 70 (2007) 357–407.
date_created: 2020-08-28T16:30:06Z
date_updated: 2022-01-06T06:53:40Z
ddc:
- '530'
doi: 10.1088/0034-4885/70/3/r02
extern: '1'
external_id:
isi:
- '000244875800003'
file:
- access_level: closed
content_type: application/pdf
creator: schindlm
date_created: 2020-08-28T16:32:12Z
date_updated: 2020-08-30T15:37:17Z
description: © 2007 IOP Publishing Ltd
file_id: '18590'
file_name: Botti_2007_Rep._Prog._Phys._70_R02.pdf
file_size: 1166692
relation: main_file
title: Time-dependent density-functional theory for extended systems
file_date_updated: 2020-08-30T15:37:17Z
has_accepted_license: '1'
intvolume: ' 70'
isi: '1'
issue: '3'
language:
- iso: eng
page: 357-407
publication: Reports on Progress in Physics
publication_identifier:
eissn:
- 1361-6633
issn:
- 0034-4885
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
status: public
title: Time-dependent density-functional theory for extended systems
type: journal_article
user_id: '458'
volume: 70
year: '2007'
...
---
_id: '18591'
abstract:
- lang: eng
text: Using density-functional theory, we investigate the stability of the half-metallic
ground state of magnetite under different strain conditions. The effects of volume
relaxation and internal degrees of freedom are fully taken into account. For hydrostatic
compression, planar strain in the (001) plane and uniaxial strain along the [001]
direction, we derive quantitative limits beyond which magnetite becomes metallic.
As a major new result, we identify the bond length between the octahedrally coordinated
iron atoms and their neighbouring oxygen atoms as the main characteristic parameter,
and we show that the transition occurs if external strain reduces this interatomic
distance from 2.06 Å in equilibrium to below a critical value of 1.99 Å. Based
on this criterion, we also argue that planar strain due to epitaxial growth does
not lead to a metallic state for magnetite films grown on (111)-oriented substrates.
article_number: '5'
article_type: original
author:
- first_name: Martin
full_name: Friák, Martin
last_name: Friák
- first_name: Arno
full_name: Schindlmayr, Arno
id: '458'
last_name: Schindlmayr
orcid: 0000-0002-4855-071X
- first_name: Matthias
full_name: Scheffler, Matthias
last_name: Scheffler
citation:
ama: Friák M, Schindlmayr A, Scheffler M. Ab initio study of the half-metal to metal
transition in strained magnetite. New Journal of Physics. 2007;9(1). doi:10.1088/1367-2630/9/1/005
apa: Friák, M., Schindlmayr, A., & Scheffler, M. (2007). Ab initio study of
the half-metal to metal transition in strained magnetite. New Journal of Physics,
9(1). https://doi.org/10.1088/1367-2630/9/1/005
bibtex: '@article{Friák_Schindlmayr_Scheffler_2007, title={Ab initio study of the
half-metal to metal transition in strained magnetite}, volume={9}, DOI={10.1088/1367-2630/9/1/005},
number={15}, journal={New Journal of Physics}, publisher={IOP Publishing and Deutsche
Physikalische Gesellschaft}, author={Friák, Martin and Schindlmayr, Arno and Scheffler,
Matthias}, year={2007} }'
chicago: Friák, Martin, Arno Schindlmayr, and Matthias Scheffler. “Ab Initio Study
of the Half-Metal to Metal Transition in Strained Magnetite.” New Journal of
Physics 9, no. 1 (2007). https://doi.org/10.1088/1367-2630/9/1/005.
ieee: M. Friák, A. Schindlmayr, and M. Scheffler, “Ab initio study of the half-metal
to metal transition in strained magnetite,” New Journal of Physics, vol.
9, no. 1, 2007.
mla: Friák, Martin, et al. “Ab Initio Study of the Half-Metal to Metal Transition
in Strained Magnetite.” New Journal of Physics, vol. 9, no. 1, 5, IOP Publishing
and Deutsche Physikalische Gesellschaft, 2007, doi:10.1088/1367-2630/9/1/005.
short: M. Friák, A. Schindlmayr, M. Scheffler, New Journal of Physics 9 (2007).
date_created: 2020-08-28T16:34:37Z
date_updated: 2022-01-06T06:53:41Z
ddc:
- '530'
doi: 10.1088/1367-2630/9/1/005
extern: '1'
external_id:
isi:
- '000243590400002'
file:
- access_level: open_access
content_type: application/pdf
creator: schindlm
date_created: 2020-08-28T16:40:11Z
date_updated: 2020-08-30T15:40:54Z
description: © 2007 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft
file_id: '18592'
file_name: Friák_2007_New_J._Phys._9_005.pdf
file_size: 573804
relation: main_file
title: Ab initio study of the half-metal to metal transition in strained magnetite
file_date_updated: 2020-08-30T15:40:54Z
has_accepted_license: '1'
intvolume: ' 9'
isi: '1'
issue: '1'
language:
- iso: eng
oa: '1'
publication: New Journal of Physics
publication_identifier:
eissn:
- 1361-6633
issn:
- 0034-4885
publication_status: published
publisher: IOP Publishing and Deutsche Physikalische Gesellschaft
quality_controlled: '1'
status: public
title: Ab initio study of the half-metal to metal transition in strained magnetite
type: journal_article
user_id: '458'
volume: 9
year: '2007'
...
---
_id: '18593'
abstract:
- lang: eng
text: We present a quantitative parameter-free method for calculating defect states
and charge-transition levels of point defects in semiconductors. It combines the
strength of density-functional theory for ground-state total energies with quasiparticle
corrections to the excitation spectrum obtained from many-body perturbation theory.
The latter is implemented within the G0W0 approximation, in which the electronic
self-energy is constructed non-self-consistently from the Green’s function of
the underlying Kohn–Sham system. The method is general and applicable to arbitrary
bulk or surface defects. As an example we consider anion vacancies at the (110)
surfaces of III–V semiconductors. Relative to the Kohn–Sham eigenvalues in the
local-density approximation, the quasiparticle corrections open the fundamental
band gap and raise the position of defect states inside the gap. As a consequence,
the charge-transition levels are also pushed to higher energies, leading to close
agreement with the available experimental data.
author:
- first_name: Arno
full_name: Schindlmayr, Arno
id: '458'
last_name: Schindlmayr
orcid: 0000-0002-4855-071X
- first_name: Matthias
full_name: Scheffler, Matthias
last_name: Scheffler
citation:
ama: 'Schindlmayr A, Scheffler M. Quasiparticle calculations for point defects at
semiconductor surfaces. In: Drabold DA, Estreicher SK, eds. Theory of Defects
in Semiconductors. Vol 104. Topics in Applied Physics. Berlin, Heidelberg:
Springer; 2007:165-192. doi:10.1007/11690320_8'
apa: 'Schindlmayr, A., & Scheffler, M. (2007). Quasiparticle calculations for
point defects at semiconductor surfaces. In D. A. Drabold & S. K. Estreicher
(Eds.), Theory of Defects in Semiconductors (Vol. 104, pp. 165–192). Berlin,
Heidelberg: Springer. https://doi.org/10.1007/11690320_8'
bibtex: '@inbook{Schindlmayr_Scheffler_2007, place={Berlin, Heidelberg}, series={Topics
in Applied Physics}, title={Quasiparticle calculations for point defects at semiconductor
surfaces}, volume={104}, DOI={10.1007/11690320_8},
booktitle={Theory of Defects in Semiconductors}, publisher={Springer}, author={Schindlmayr,
Arno and Scheffler, Matthias}, editor={Drabold, David A. and Estreicher, Stefan
K.Editors}, year={2007}, pages={165–192}, collection={Topics in Applied Physics}
}'
chicago: 'Schindlmayr, Arno, and Matthias Scheffler. “Quasiparticle Calculations
for Point Defects at Semiconductor Surfaces.” In Theory of Defects in Semiconductors,
edited by David A. Drabold and Stefan K. Estreicher, 104:165–92. Topics in Applied
Physics. Berlin, Heidelberg: Springer, 2007. https://doi.org/10.1007/11690320_8.'
ieee: 'A. Schindlmayr and M. Scheffler, “Quasiparticle calculations for point defects
at semiconductor surfaces,” in Theory of Defects in Semiconductors, vol.
104, D. A. Drabold and S. K. Estreicher, Eds. Berlin, Heidelberg: Springer, 2007,
pp. 165–192.'
mla: Schindlmayr, Arno, and Matthias Scheffler. “Quasiparticle Calculations for
Point Defects at Semiconductor Surfaces.” Theory of Defects in Semiconductors,
edited by David A. Drabold and Stefan K. Estreicher, vol. 104, Springer, 2007,
pp. 165–92, doi:10.1007/11690320_8.
short: 'A. Schindlmayr, M. Scheffler, in: D.A. Drabold, S.K. Estreicher (Eds.),
Theory of Defects in Semiconductors, Springer, Berlin, Heidelberg, 2007, pp. 165–192.'
date_created: 2020-08-28T16:43:51Z
date_updated: 2022-01-06T06:53:41Z
ddc:
- '530'
doi: 10.1007/11690320_8
editor:
- first_name: David A.
full_name: Drabold, David A.
last_name: Drabold
- first_name: Stefan K.
full_name: Estreicher, Stefan K.
last_name: Estreicher
extern: '1'
external_id:
isi:
- '000241944900008'
file:
- access_level: closed
content_type: application/pdf
creator: schindlm
date_created: 2020-08-28T16:49:56Z
date_updated: 2020-08-30T15:42:34Z
description: © 2007 Springer-Verlag, Berlin, Heidelberg
file_id: '18594'
file_name: Schindlmayr-Scheffler2007_Chapter_QuasiparticleCalculationsForPo.pdf
file_size: 649066
relation: main_file
title: Quasiparticle calculations for point defects at semiconductor surfaces
file_date_updated: 2020-08-30T15:42:34Z
has_accepted_license: '1'
intvolume: ' 104'
isi: '1'
language:
- iso: eng
page: 165-192
place: Berlin, Heidelberg
publication: Theory of Defects in Semiconductors
publication_identifier:
eisbn:
- 978-3-540-33401-9
eissn:
- 1437-0859
isbn:
- 978-3-540-33400-2
issn:
- 0303-4216
publication_status: published
publisher: Springer
quality_controlled: '1'
series_title: Topics in Applied Physics
status: public
title: Quasiparticle calculations for point defects at semiconductor surfaces
type: book_chapter
user_id: '458'
volume: 104
year: '2007'
...
---
_id: '18655'
abstract:
- lang: eng
text: We study graph properties which are testable for bounded degree graphs in
time independent of the input size. Our goal is to distinguish between graphs
having a predetermined graph property and graphs that are far from every graph
having that property. It is believed that almost all, even very simple graph properties
require a large complexity to be tested for arbitrary (bounded degree) graphs.
Therefore in this paper we focus our attention on testing graph properties for
special classes of graphs. We call a graph family non-expanding if every graph
in this family is not a weak expander (its expansion is O(1/log2 n), where n is
the graph size). A graph family is hereditary if it is closed under vertex removal.
Similarly, a graph property is hereditary if it is closed under vertex removal.
Next, we call a graph property Π to be testable for a graph family F if for every
graph G ε F, in time independent of the size of G we can distinguish between the
case when G satisfies property Π and when it is far from every graph satisfying
property Π. In this paper we prove thatIn the bounded degree graph model, any
hereditary property is testable if the input graph belongs to a hereditary and
non-expanding family of graphs.As an application, our result implies that, for
example, any hereditary property (e.g., k-colorability, H-freeness, etc.) is testable
in the bounded degree graph model for planar graphs, graphs with bounded genus,
interval graphs, etc. No such results have been known before and prior to our
work, in the bounded degree graph model very few graph properties have been known
to be testable for any graph classes.
author:
- first_name: Christian
full_name: Sohler, Christian
last_name: Sohler
- first_name: Artur
full_name: Czumaj, Artur
last_name: Czumaj
citation:
ama: 'Sohler C, Czumaj A. On Testable Properties in Bounded Degree Graphs. In: Proceedings
of the 17th ACM-SIAM Symposium on Discrete Algorithms (SODA’07). ; 2007:494-501.'
apa: Sohler, C., & Czumaj, A. (2007). On Testable Properties in Bounded Degree
Graphs. In Proceedings of the 17th ACM-SIAM Symposium on Discrete Algorithms
(SODA’07) (pp. 494–501).
bibtex: '@inproceedings{Sohler_Czumaj_2007, title={On Testable Properties in Bounded
Degree Graphs}, booktitle={Proceedings of the 17th ACM-SIAM Symposium on Discrete
Algorithms (SODA’07)}, author={Sohler, Christian and Czumaj, Artur}, year={2007},
pages={494–501} }'
chicago: Sohler, Christian, and Artur Czumaj. “On Testable Properties in Bounded
Degree Graphs.” In Proceedings of the 17th ACM-SIAM Symposium on Discrete Algorithms
(SODA’07), 494–501, 2007.
ieee: C. Sohler and A. Czumaj, “On Testable Properties in Bounded Degree Graphs,”
in Proceedings of the 17th ACM-SIAM Symposium on Discrete Algorithms (SODA’07),
2007, pp. 494–501.
mla: Sohler, Christian, and Artur Czumaj. “On Testable Properties in Bounded Degree
Graphs.” Proceedings of the 17th ACM-SIAM Symposium on Discrete Algorithms
(SODA’07), 2007, pp. 494–501.
short: 'C. Sohler, A. Czumaj, in: Proceedings of the 17th ACM-SIAM Symposium on
Discrete Algorithms (SODA’07), 2007, pp. 494–501.'
date_created: 2020-08-31T07:40:36Z
date_updated: 2022-01-06T06:53:50Z
department:
- _id: '63'
language:
- iso: eng
page: 494-501
publication: Proceedings of the 17th ACM-SIAM Symposium on Discrete Algorithms (SODA'07)
publication_identifier:
isbn:
- '9780898716245'
status: public
title: On Testable Properties in Bounded Degree Graphs
type: conference
user_id: '15415'
year: '2007'
...
---
_id: '18656'
abstract:
- lang: eng
text: In the StrSort model [2], the input is given as a stream, e.g. a sequence
of points, and an algorithm can perform (a) streaming and (b) sorting passes to
process the stream. A streaming pass reads the input stream from left to right
and writes an output stream, which is the input of the next pass. A sorting pass
is a black box operation that sorts a stream according to some partial order.
In this paper, we develop algorithms for two basic geometric problems in the StrSort
model. At first, we propose a divide-and-conquer algorithm that computes the convex
hull of a point set in 2D in O(log2 n) passes using O(1) memory. Then we give
a StrSort algorithm to compute a (1+ε)-spanner for a point set in Rd for constant
d and constant epsilon that uses O(logd-1 n) passes and O(log n) space. This result
implies a (1+ε)-approximation of the Euclidean minimum spanning tree in Rd, for
constant d and ε.
author:
- first_name: Christian
full_name: Sohler, Christian
last_name: Sohler
- first_name: Christiane
full_name: Lammersen, Christiane
last_name: Lammersen
citation:
ama: 'Sohler C, Lammersen C. StrSort Algorithms for Geometric Problems. In: Proceedings
of the 23rd European Workshop on Computational Geometry (EWCG). ; 2007:69-72.'
apa: Sohler, C., & Lammersen, C. (2007). StrSort Algorithms for Geometric Problems.
In Proceedings of the 23rd European Workshop on Computational Geometry (EWCG)
(pp. 69–72).
bibtex: '@inproceedings{Sohler_Lammersen_2007, title={StrSort Algorithms for Geometric
Problems}, booktitle={Proceedings of the 23rd European Workshop on Computational
Geometry (EWCG)}, author={Sohler, Christian and Lammersen, Christiane}, year={2007},
pages={69–72} }'
chicago: Sohler, Christian, and Christiane Lammersen. “StrSort Algorithms for Geometric
Problems.” In Proceedings of the 23rd European Workshop on Computational Geometry
(EWCG), 69–72, 2007.
ieee: C. Sohler and C. Lammersen, “StrSort Algorithms for Geometric Problems,” in
Proceedings of the 23rd European Workshop on Computational Geometry (EWCG),
2007, pp. 69–72.
mla: Sohler, Christian, and Christiane Lammersen. “StrSort Algorithms for Geometric
Problems.” Proceedings of the 23rd European Workshop on Computational Geometry
(EWCG), 2007, pp. 69–72.
short: 'C. Sohler, C. Lammersen, in: Proceedings of the 23rd European Workshop on
Computational Geometry (EWCG), 2007, pp. 69–72.'
date_created: 2020-08-31T07:49:02Z
date_updated: 2022-01-06T06:53:50Z
department:
- _id: '63'
language:
- iso: eng
page: 69-72
publication: Proceedings of the 23rd European Workshop on Computational Geometry (EWCG)
status: public
title: StrSort Algorithms for Geometric Problems
type: conference
user_id: '15415'
year: '2007'
...
---
_id: '18660'
author:
- first_name: 'Christian '
full_name: 'Sohler, Christian '
last_name: Sohler
- first_name: Artur
full_name: Czumaj, Artur
last_name: Czumaj
citation:
ama: 'Sohler C, Czumaj A. Testing Expansion in Bounded-Degree Graphs. In: Proceedings
of the 48th Annual IEEE Symposium on Foundations of Computer Science (FOCS).
; 2007:570-578.'
apa: Sohler, C., & Czumaj, A. (2007). Testing Expansion in Bounded-Degree Graphs.
In Proceedings of the 48th Annual IEEE Symposium on Foundations of Computer
Science (FOCS) (pp. 570–578).
bibtex: '@inproceedings{Sohler_Czumaj_2007, title={Testing Expansion in Bounded-Degree
Graphs}, booktitle={Proceedings of the 48th Annual IEEE Symposium on Foundations
of Computer Science (FOCS)}, author={Sohler, Christian and Czumaj, Artur}, year={2007},
pages={570–578} }'
chicago: Sohler, Christian , and Artur Czumaj. “Testing Expansion in Bounded-Degree
Graphs.” In Proceedings of the 48th Annual IEEE Symposium on Foundations of
Computer Science (FOCS), 570–78, 2007.
ieee: C. Sohler and A. Czumaj, “Testing Expansion in Bounded-Degree Graphs,” in
Proceedings of the 48th Annual IEEE Symposium on Foundations of Computer Science
(FOCS), 2007, pp. 570–578.
mla: Sohler, Christian, and Artur Czumaj. “Testing Expansion in Bounded-Degree Graphs.”
Proceedings of the 48th Annual IEEE Symposium on Foundations of Computer Science
(FOCS), 2007, pp. 570–78.
short: 'C. Sohler, A. Czumaj, in: Proceedings of the 48th Annual IEEE Symposium
on Foundations of Computer Science (FOCS), 2007, pp. 570–578.'
date_created: 2020-08-31T07:55:45Z
date_updated: 2022-01-06T06:53:50Z
department:
- _id: '63'
language:
- iso: eng
page: 570 - 578
publication: Proceedings of the 48th Annual IEEE Symposium on Foundations of Computer
Science (FOCS)
status: public
title: Testing Expansion in Bounded-Degree Graphs
type: conference
user_id: '15415'
year: '2007'
...
---
_id: '18662'
author:
- first_name: Christian
full_name: Sohler, Christian
last_name: Sohler
- first_name: Artur
full_name: Czumaj, Artur
last_name: Czumaj
citation:
ama: 'Sohler C, Czumaj A. Small Space Representations for Metric Min-Sum k-Clustering
and their Applications. In: Proceedings of the 24th International Symposium
on Theoretical Aspects of Computer Science (STACS’07). ; 2007:536-548.'
apa: Sohler, C., & Czumaj, A. (2007). Small Space Representations for Metric
Min-Sum k-Clustering and their Applications. In Proceedings of the 24th International
Symposium on Theoretical Aspects of Computer Science (STACS’07) (pp. 536–548).
bibtex: '@inproceedings{Sohler_Czumaj_2007, title={Small Space Representations for
Metric Min-Sum k-Clustering and their Applications}, booktitle={Proceedings of
the 24th International Symposium on Theoretical Aspects of Computer Science (STACS’07)},
author={Sohler, Christian and Czumaj, Artur}, year={2007}, pages={536–548} }'
chicago: Sohler, Christian, and Artur Czumaj. “Small Space Representations for Metric
Min-Sum k-Clustering and Their Applications.” In Proceedings of the 24th International
Symposium on Theoretical Aspects of Computer Science (STACS’07), 536–48, 2007.
ieee: C. Sohler and A. Czumaj, “Small Space Representations for Metric Min-Sum k-Clustering
and their Applications,” in Proceedings of the 24th International Symposium
on Theoretical Aspects of Computer Science (STACS’07), 2007, pp. 536–548.
mla: Sohler, Christian, and Artur Czumaj. “Small Space Representations for Metric
Min-Sum k-Clustering and Their Applications.” Proceedings of the 24th International
Symposium on Theoretical Aspects of Computer Science (STACS’07), 2007, pp.
536–48.
short: 'C. Sohler, A. Czumaj, in: Proceedings of the 24th International Symposium
on Theoretical Aspects of Computer Science (STACS’07), 2007, pp. 536–548.'
date_created: 2020-08-31T07:59:05Z
date_updated: 2022-01-06T06:53:50Z
department:
- _id: '63'
language:
- iso: eng
page: 536-548
publication: Proceedings of the 24th International Symposium on Theoretical Aspects
of Computer Science (STACS'07)
status: public
title: Small Space Representations for Metric Min-Sum k-Clustering and their Applications
type: conference
user_id: '15415'
year: '2007'
...
---
_id: '18665'
abstract:
- lang: eng
text: 'We present a novel analysis of a random sampling approach for four clustering
problems in metric spaces: k-median, k-means, min-sum k-clustering, and balanced
k-median. For all these problems, we consider the following simple sampling scheme:
select a small sample set of input points uniformly at random and then run some
approximation algorithm on this sample set to compute an approximation of the
best possible clustering of this set. Our main technical contribution is a significantly
strengthened analysis of the approximation guarantee by this scheme for the clustering
problems.The main motivation behind our analyses was to design sublinear-time
algorithms for clustering problems. Our second contribution is the development
of new approximation algorithms for the aforementioned clustering problems. Using
our random sampling approach, we obtain for these problems the first time approximation
algorithms that have running time independent of the input size, and depending
on k and the diameter of the metric space only. © 2006 Wiley Periodicals, Inc.
Random Struct. Alg., 2007A preliminary extended abstract of this work appeared
in Proceedings of the 31st Annual International Colloquium on Automata, Languages
and Programming (ICALP), pp. 396407, 2004.'
author:
- first_name: Christian
full_name: Sohler, Christian
last_name: Sohler
- first_name: Artur
full_name: Czumaj, Artur
last_name: Czumaj
citation:
ama: Sohler C, Czumaj A. Sublinear-time approximation algorithms for clustering
via random sampling. Random Structures & Algorithms. 2007;30(1-2):226--
256.
apa: Sohler, C., & Czumaj, A. (2007). Sublinear-time approximation algorithms
for clustering via random sampling. Random Structures & Algorithms,
30(1–2), 226-- 256.
bibtex: '@article{Sohler_Czumaj_2007, title={Sublinear-time approximation algorithms
for clustering via random sampling}, volume={30}, number={1–2}, journal={Random
Structures & Algorithms}, author={Sohler, Christian and Czumaj, Artur}, year={2007},
pages={226-- 256} }'
chicago: 'Sohler, Christian, and Artur Czumaj. “Sublinear-Time Approximation Algorithms
for Clustering via Random Sampling.” Random Structures & Algorithms
30, no. 1–2 (2007): 226-- 256.'
ieee: C. Sohler and A. Czumaj, “Sublinear-time approximation algorithms for clustering
via random sampling,” Random Structures & Algorithms, vol. 30, no.
1–2, pp. 226-- 256, 2007.
mla: Sohler, Christian, and Artur Czumaj. “Sublinear-Time Approximation Algorithms
for Clustering via Random Sampling.” Random Structures & Algorithms,
vol. 30, no. 1–2, 2007, pp. 226-- 256.
short: C. Sohler, A. Czumaj, Random Structures & Algorithms 30 (2007) 226--
256.
date_created: 2020-08-31T08:03:52Z
date_updated: 2022-01-06T06:53:50Z
department:
- _id: '63'
intvolume: ' 30'
issue: 1-2
language:
- iso: eng
page: 226 -- 256
publication: Random Structures & Algorithms
status: public
title: Sublinear-time approximation algorithms for clustering via random sampling
type: journal_article
user_id: '15415'
volume: 30
year: '2007'
...
---
_id: '18668'
author:
- first_name: Christian
full_name: Sohler, Christian
last_name: Sohler
- first_name: Morteza
full_name: Monemizahdeh, Morteza
last_name: Monemizahdeh
- first_name: Dan
full_name: Feldman, Dan
last_name: Feldman
citation:
ama: 'Sohler C, Monemizahdeh M, Feldman D. A PTAS for k-means clustering based on
weak coresets. In: Proceedings of the 23rd Annual Symposium on Computational
Geometry (SoCG’07). ; 2007:11-18.'
apa: Sohler, C., Monemizahdeh, M., & Feldman, D. (2007). A PTAS for k-means
clustering based on weak coresets. In Proceedings of the 23rd annual symposium
on computational geometry (SoCG’07) (pp. 11–18).
bibtex: '@inproceedings{Sohler_Monemizahdeh_Feldman_2007, title={A PTAS for k-means
clustering based on weak coresets}, booktitle={Proceedings of the 23rd annual
symposium on computational geometry (SoCG’07)}, author={Sohler, Christian and
Monemizahdeh, Morteza and Feldman, Dan}, year={2007}, pages={11–18} }'
chicago: Sohler, Christian, Morteza Monemizahdeh, and Dan Feldman. “A PTAS for K-Means
Clustering Based on Weak Coresets.” In Proceedings of the 23rd Annual Symposium
on Computational Geometry (SoCG’07), 11–18, 2007.
ieee: C. Sohler, M. Monemizahdeh, and D. Feldman, “A PTAS for k-means clustering
based on weak coresets,” in Proceedings of the 23rd annual symposium on computational
geometry (SoCG’07), 2007, pp. 11–18.
mla: Sohler, Christian, et al. “A PTAS for K-Means Clustering Based on Weak Coresets.”
Proceedings of the 23rd Annual Symposium on Computational Geometry (SoCG’07),
2007, pp. 11–18.
short: 'C. Sohler, M. Monemizahdeh, D. Feldman, in: Proceedings of the 23rd Annual
Symposium on Computational Geometry (SoCG’07), 2007, pp. 11–18.'
date_created: 2020-08-31T08:10:11Z
date_updated: 2022-01-06T06:53:50Z
department:
- _id: '63'
language:
- iso: eng
page: 11-18
publication: Proceedings of the 23rd annual symposium on computational geometry (SoCG'07)
status: public
title: A PTAS for k-means clustering based on weak coresets
type: conference
user_id: '15415'
year: '2007'
...
---
_id: '18669'
author:
- first_name: Christian
full_name: Sohler, Christian
last_name: Sohler
- first_name: Artur
full_name: Czumaj, Artur
last_name: Czumaj
- first_name: Gereon
full_name: Frahling, Gereon
last_name: Frahling
citation:
ama: 'Sohler C, Czumaj A, Frahling G. Efficient kinetic data structures for MaxCut.
In: Proceedings of the 19th Canadian Conference on Computational Geometry (CCCG).
; 2007:157-160.'
apa: Sohler, C., Czumaj, A., & Frahling, G. (2007). Efficient kinetic data structures
for MaxCut. In Proceedings of the 19th Canadian Conference on Computational
Geometry (CCCG) (pp. 157–160).
bibtex: '@inproceedings{Sohler_Czumaj_Frahling_2007, title={Efficient kinetic data
structures for MaxCut}, booktitle={Proceedings of the 19th Canadian Conference
on Computational Geometry (CCCG)}, author={Sohler, Christian and Czumaj, Artur
and Frahling, Gereon}, year={2007}, pages={157–160} }'
chicago: Sohler, Christian, Artur Czumaj, and Gereon Frahling. “Efficient Kinetic
Data Structures for MaxCut.” In Proceedings of the 19th Canadian Conference
on Computational Geometry (CCCG), 157–60, 2007.
ieee: C. Sohler, A. Czumaj, and G. Frahling, “Efficient kinetic data structures
for MaxCut,” in Proceedings of the 19th Canadian Conference on Computational
Geometry (CCCG), 2007, pp. 157–160.
mla: Sohler, Christian, et al. “Efficient Kinetic Data Structures for MaxCut.” Proceedings
of the 19th Canadian Conference on Computational Geometry (CCCG), 2007, pp.
157–60.
short: 'C. Sohler, A. Czumaj, G. Frahling, in: Proceedings of the 19th Canadian
Conference on Computational Geometry (CCCG), 2007, pp. 157–160.'
date_created: 2020-08-31T08:12:53Z
date_updated: 2022-01-06T06:53:50Z
department:
- _id: '63'
language:
- iso: eng
page: 157-160
publication: Proceedings of the 19th Canadian Conference on Computational Geometry
(CCCG)
status: public
title: Efficient kinetic data structures for MaxCut
type: conference
user_id: '15415'
year: '2007'
...
---
_id: '2214'
abstract:
- lang: eng
text: We present a randomized block-level storage virtualization for arbitrary heterogeneous
storage systems that can distribute data in a fair and redundant way and can adapt
this distribution in an efficient way as storage devices enter or leave the system.
More precisely, our virtualization strategies can distribute a set of data blocks
among a set of storage devices of arbitrary non-uniform capacities so that a storage
device representing x% of the capacity in the system will get x% of the data (as
long as this is in principle possible) and the different copies of each data block
are stored so that no two copies of a data block are located in the same device.
Achieving these two properties is not easy, and no virtualization strategy has
been presented so far that has been formally shown to satisfy fairness and redundancy
while being time- and space-eflcient and allowing an efficient adaptation to a
changing set of devices.
author:
- first_name: André
full_name: Brinkmann, André
last_name: Brinkmann
- first_name: Sascha
full_name: Effert, Sascha
last_name: Effert
- first_name: Friedhelm
full_name: Meyer auf der Heide, Friedhelm
id: '15523'
last_name: Meyer auf der Heide
- first_name: Christian
full_name: Scheideler, Christian
id: '20792'
last_name: Scheideler
citation:
ama: 'Brinkmann A, Effert S, Meyer auf der Heide F, Scheideler C. Dynamic and redundant
data placement. In: IEEE International Conference on Distributed Computing
Systems (ICDCS). ; 2007.'
apa: Brinkmann, A., Effert, S., Meyer auf der Heide, F., & Scheideler, C. (2007).
Dynamic and redundant data placement. IEEE International Conference on Distributed
Computing Systems (ICDCS).
bibtex: '@inproceedings{Brinkmann_Effert_Meyer auf der Heide_Scheideler_2007, title={Dynamic
and redundant data placement}, booktitle={IEEE International Conference on Distributed
Computing Systems (ICDCS)}, author={Brinkmann, André and Effert, Sascha and Meyer
auf der Heide, Friedhelm and Scheideler, Christian}, year={2007} }'
chicago: Brinkmann, André, Sascha Effert, Friedhelm Meyer auf der Heide, and Christian
Scheideler. “Dynamic and Redundant Data Placement.” In IEEE International Conference
on Distributed Computing Systems (ICDCS), 2007.
ieee: A. Brinkmann, S. Effert, F. Meyer auf der Heide, and C. Scheideler, “Dynamic
and redundant data placement,” 2007.
mla: Brinkmann, André, et al. “Dynamic and Redundant Data Placement.” IEEE International
Conference on Distributed Computing Systems (ICDCS), 2007.
short: 'A. Brinkmann, S. Effert, F. Meyer auf der Heide, C. Scheideler, in: IEEE
International Conference on Distributed Computing Systems (ICDCS), 2007.'
date_created: 2018-04-05T07:08:35Z
date_updated: 2022-01-06T06:55:27Z
ddc:
- '040'
department:
- _id: '79'
- _id: '63'
file:
- access_level: open_access
content_type: application/pdf
creator: florida
date_created: 2018-04-13T10:01:42Z
date_updated: 2018-04-13T10:01:42Z
file_id: '2339'
file_name: ICDCS07.pdf
file_size: 164121
relation: main_file
file_date_updated: 2018-04-13T10:01:42Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
publication: IEEE International Conference on Distributed Computing Systems (ICDCS)
status: public
title: Dynamic and redundant data placement
type: conference
urn: '22147'
user_id: '15415'
year: '2007'
...
---
_id: '22330'
author:
- first_name: Ursula
full_name: Frank, Ursula
last_name: Frank
- first_name: Jürgen
full_name: Gausemeier, Jürgen
last_name: Gausemeier
- first_name: Alexander
full_name: Schmidt, Alexander
last_name: Schmidt
- first_name: Detmar
full_name: Zimmer, Detmar
id: '604'
last_name: Zimmer
citation:
ama: 'Frank U, Gausemeier J, Schmidt A, Zimmer D. Von der Mechatronik zur Selbstoptimierung.
In: Internationales Forum Mechatronik. Intelligente Systeme Und Module.
Züricher Hochschule für Angewandte Wissenschaften Institut für Mechatronische
Systeme; 2007.'
apa: Frank, U., Gausemeier, J., Schmidt, A., & Zimmer, D. (2007). Von der Mechatronik
zur Selbstoptimierung. In Internationales Forum Mechatronik. Intelligente Systeme
und Module. Züricher Hochschule für Angewandte Wissenschaften Institut für
Mechatronische Systeme.
bibtex: '@inproceedings{Frank_Gausemeier_Schmidt_Zimmer_2007, title={Von der Mechatronik
zur Selbstoptimierung}, booktitle={Internationales Forum Mechatronik. Intelligente
Systeme und Module}, publisher={Züricher Hochschule für Angewandte Wissenschaften
Institut für Mechatronische Systeme}, author={Frank, Ursula and Gausemeier, Jürgen
and Schmidt, Alexander and Zimmer, Detmar}, year={2007} }'
chicago: Frank, Ursula, Jürgen Gausemeier, Alexander Schmidt, and Detmar Zimmer.
“Von Der Mechatronik Zur Selbstoptimierung.” In Internationales Forum Mechatronik.
Intelligente Systeme Und Module. Züricher Hochschule für Angewandte Wissenschaften
Institut für Mechatronische Systeme, 2007.
ieee: U. Frank, J. Gausemeier, A. Schmidt, and D. Zimmer, “Von der Mechatronik zur
Selbstoptimierung,” in Internationales Forum Mechatronik. Intelligente Systeme
und Module, 2007.
mla: Frank, Ursula, et al. “Von Der Mechatronik Zur Selbstoptimierung.” Internationales
Forum Mechatronik. Intelligente Systeme Und Module, Züricher Hochschule für
Angewandte Wissenschaften Institut für Mechatronische Systeme, 2007.
short: 'U. Frank, J. Gausemeier, A. Schmidt, D. Zimmer, in: Internationales Forum
Mechatronik. Intelligente Systeme Und Module, Züricher Hochschule für Angewandte
Wissenschaften Institut für Mechatronische Systeme, 2007.'
date_created: 2021-06-15T11:08:05Z
date_updated: 2022-01-06T06:55:31Z
department:
- _id: '9'
- _id: '146'
language:
- iso: eng
publication: Internationales Forum Mechatronik. Intelligente Systeme und Module
publication_identifier:
isbn:
- 978-3-033-01192-2
publisher: Züricher Hochschule für Angewandte Wissenschaften Institut für Mechatronische
Systeme
status: public
title: Von der Mechatronik zur Selbstoptimierung
type: conference
user_id: '38077'
year: '2007'
...
---
_id: '22331'
author:
- first_name: Jürgen
full_name: Gausemeier, Jürgen
last_name: Gausemeier
- first_name: Wilhelm
full_name: Dangelmaier, Wilhelm
last_name: Dangelmaier
- first_name: Detmar
full_name: Zimmer, Detmar
id: '604'
last_name: Zimmer
- first_name: Alexander
full_name: Schmidt, Alexander
last_name: Schmidt
- first_name: Ursula
full_name: Frank, Ursula
last_name: Frank
- first_name: Benjamin
full_name: Klöpper, Benjamin
last_name: Klöpper
citation:
ama: 'Gausemeier J, Dangelmaier W, Zimmer D, Schmidt A, Frank U, Klöpper B. Using
Active Patterns for the Conceptual Design of Self-Optimizing Systems Exemplified
by an Air Gap Adjustment System. In: Computers and Information in Engineering
Conference, Parts A and B. Vol 27. American Society of Mechanical Engineers;
2007:935-944. doi:10.1115/DETC2007-34642'
apa: Gausemeier, J., Dangelmaier, W., Zimmer, D., Schmidt, A., Frank, U., &
Klöpper, B. (2007). Using Active Patterns for the Conceptual Design of Self-Optimizing
Systems Exemplified by an Air Gap Adjustment System. In Computers and Information
in Engineering Conference, Parts A and B (Vol. 27, pp. 935–944). American
Society of Mechanical Engineers. https://doi.org/10.1115/DETC2007-34642
bibtex: '@inproceedings{Gausemeier_Dangelmaier_Zimmer_Schmidt_Frank_Klöpper_2007,
title={Using Active Patterns for the Conceptual Design of Self-Optimizing Systems
Exemplified by an Air Gap Adjustment System}, volume={27}, DOI={10.1115/DETC2007-34642},
booktitle={Computers and Information in Engineering Conference, Parts A and B},
publisher={American Society of Mechanical Engineers}, author={Gausemeier, Jürgen
and Dangelmaier, Wilhelm and Zimmer, Detmar and Schmidt, Alexander and Frank,
Ursula and Klöpper, Benjamin}, year={2007}, pages={935–944} }'
chicago: Gausemeier, Jürgen, Wilhelm Dangelmaier, Detmar Zimmer, Alexander Schmidt,
Ursula Frank, and Benjamin Klöpper. “Using Active Patterns for the Conceptual
Design of Self-Optimizing Systems Exemplified by an Air Gap Adjustment System.”
In Computers and Information in Engineering Conference, Parts A and B,
27:935–44. American Society of Mechanical Engineers, 2007. https://doi.org/10.1115/DETC2007-34642.
ieee: J. Gausemeier, W. Dangelmaier, D. Zimmer, A. Schmidt, U. Frank, and B. Klöpper,
“Using Active Patterns for the Conceptual Design of Self-Optimizing Systems Exemplified
by an Air Gap Adjustment System,” in Computers and Information in Engineering
Conference, Parts A and B, 2007, vol. 27, pp. 935–944.
mla: Gausemeier, Jürgen, et al. “Using Active Patterns for the Conceptual Design
of Self-Optimizing Systems Exemplified by an Air Gap Adjustment System.” Computers
and Information in Engineering Conference, Parts A and B, vol. 27, American
Society of Mechanical Engineers, 2007, pp. 935–44, doi:10.1115/DETC2007-34642.
short: 'J. Gausemeier, W. Dangelmaier, D. Zimmer, A. Schmidt, U. Frank, B. Klöpper,
in: Computers and Information in Engineering Conference, Parts A and B, American
Society of Mechanical Engineers, 2007, pp. 935–944.'
date_created: 2021-06-15T11:08:06Z
date_updated: 2022-01-06T06:55:31Z
department:
- _id: '9'
- _id: '146'
doi: 10.1115/DETC2007-34642
intvolume: ' 27'
language:
- iso: eng
page: 935-944
publication: Computers and Information in Engineering Conference, Parts A and B
publication_identifier:
isbn:
- 0-7918-3806-4
publisher: American Society of Mechanical Engineers
status: public
title: Using Active Patterns for the Conceptual Design of Self-Optimizing Systems
Exemplified by an Air Gap Adjustment System
type: conference
user_id: '38077'
volume: 27
year: '2007'
...