---
_id: '4360'
abstract:
- lang: ger
  text: Die Erfindung betrifft ein Verfahren zur Präparation einer Besetzungsinversion
    in einem Quantensystem (Q) mittels Mehrpulsanregung, wobei ein Quantensystem (Q)
    umfassend wenigstens einen Quantenpunkt mit zwei orthogonalen Zuständen (/X>,
    /Y>), insbesondere die mit zueinander orthogonalen Polarisationen (P1, P2) optisch
    anregbar sind, mit einem ersten Laserpuls (L1) beleuchtet wird, welcher zur resonanten
    Anregung des ersten (/Y>) der zwei Zustände (/X>, /Y>) eingestellt wird und zeitlich
    nachfolgend mit einem zweiten Laserpuls (L2) beleuchtet wird, der zur resonanten
    Anregung des zweiten (/X>) der zwei Zustände (/X>, /Y>) eingestellt wird.
- lang: eng
  text: The invention relates to a process for the preparation of a population inversion
    in a quantum system (Q) by means of multi-pulse excitation, wherein a quantum
    system (Q) comprising at least one quantum dot with two orthogonal states (/ X>
    / Y>), particularly the (mutually orthogonal polarizations P1 , P2) are optically
    excitable, is illuminated with a first laser pulse (L1) which is (for resonant
    excitation of the first (/ Y>) of the two states of / X, / Y>) is set> and temporally
    below (with a second laser pulse of (for resonant excitation of the second (/
    X>) of the two states of / X, / Y>) is set> L2) is illuminated.
application_date: 2013-07-31
application_number: '102013012682'
author:
- first_name: Artur
  full_name: Zrenner, Artur
  id: '606'
  last_name: Zrenner
  orcid: 0000-0002-5190-0944
- first_name: Jens
  full_name: Förstner, Jens
  id: '158'
  last_name: Förstner
  orcid: 0000-0001-7059-9862
- first_name: Dirk
  full_name: Mantei, Dirk
  last_name: Mantei
citation:
  ama: Zrenner A, Förstner J, Mantei D. A process for the preparation of a population
    inversion in a quantum system using multi-pulse excitation. Published online 2015.
  apa: Zrenner, A., Förstner, J., &#38; Mantei, D. (2015). <i>A process for the preparation
    of a population inversion in a quantum system using multi-pulse excitation</i>.
  bibtex: '@article{Zrenner_Förstner_Mantei_2015, title={A process for the preparation
    of a population inversion in a quantum system using multi-pulse excitation}, author={Zrenner,
    Artur and Förstner, Jens and Mantei, Dirk}, year={2015} }'
  chicago: Zrenner, Artur, Jens Förstner, and Dirk Mantei. “A Process for the Preparation
    of a Population Inversion in a Quantum System Using Multi-Pulse Excitation,” 2015.
  ieee: A. Zrenner, J. Förstner, and D. Mantei, “A process for the preparation of
    a population inversion in a quantum system using multi-pulse excitation.” 2015.
  mla: Zrenner, Artur, et al. <i>A Process for the Preparation of a Population Inversion
    in a Quantum System Using Multi-Pulse Excitation</i>. 2015.
  short: A. Zrenner, J. Förstner, D. Mantei, (2015).
date_created: 2018-09-06T09:48:18Z
date_updated: 2022-04-26T18:01:56Z
department:
- _id: '61'
- _id: '43'
ipc: 'H01S 3/09  '
ipn: DE102013012682B4
keyword:
- tet_topic_qd
main_file_link:
- url: https://patents.google.com/patent/DE102013012682A1/en
publication_date: 2022-03-03
status: public
title: A process for the preparation of a population inversion in a quantum system
  using multi-pulse excitation
type: patent
user_id: '158'
year: '2015'
...
---
_id: '14876'
author:
- first_name: Mei-Hua
  full_name: Chen, Mei-Hua
  last_name: Chen
- first_name: Wei-Fan
  full_name: Chen, Wei-Fan
  id: '82920'
  last_name: Chen
- first_name: Lun-Wei
  full_name: Ku, Lun-Wei
  last_name: Ku
citation:
  ama: 'Chen M-H, Chen W-F, Ku L-W. Technology Enhanced Emotion Expression Learning.
    In: <i>Proceedings of the Sixth Joint Foreign Language Education and Technology
    Conference (FLEAT VI)</i>. ; 2015.'
  apa: Chen, M.-H., Chen, W.-F., &#38; Ku, L.-W. (2015). Technology Enhanced Emotion
    Expression Learning. <i>Proceedings of the Sixth Joint Foreign Language Education
    and Technology Conference (FLEAT VI)</i>.
  bibtex: '@inproceedings{Chen_Chen_Ku_2015, title={Technology Enhanced Emotion Expression
    Learning}, booktitle={Proceedings of the sixth joint Foreign Language Education
    and Technology Conference (FLEAT VI)}, author={Chen, Mei-Hua and Chen, Wei-Fan
    and Ku, Lun-Wei}, year={2015} }'
  chicago: Chen, Mei-Hua, Wei-Fan Chen, and Lun-Wei Ku. “Technology Enhanced Emotion
    Expression Learning.” In <i>Proceedings of the Sixth Joint Foreign Language Education
    and Technology Conference (FLEAT VI)</i>, 2015.
  ieee: M.-H. Chen, W.-F. Chen, and L.-W. Ku, “Technology Enhanced Emotion Expression
    Learning,” 2015.
  mla: Chen, Mei-Hua, et al. “Technology Enhanced Emotion Expression Learning.” <i>Proceedings
    of the Sixth Joint Foreign Language Education and Technology Conference (FLEAT
    VI)</i>, 2015.
  short: 'M.-H. Chen, W.-F. Chen, L.-W. Ku, in: Proceedings of the Sixth Joint Foreign
    Language Education and Technology Conference (FLEAT VI), 2015.'
date_created: 2019-11-11T12:23:45Z
date_updated: 2022-11-10T09:17:00Z
department:
- _id: '600'
extern: '1'
language:
- iso: eng
publication: Proceedings of the sixth joint Foreign Language Education and Technology
  Conference (FLEAT VI)
status: public
title: Technology Enhanced Emotion Expression Learning
type: conference
user_id: '82920'
year: '2015'
...
---
_id: '29402'
author:
- first_name: K.
  full_name: Flaßkamp, K.
  last_name: Flaßkamp
- first_name: S.
  full_name: Hage-Packhäuser, S.
  last_name: Hage-Packhäuser
- first_name: Sina
  full_name: Ober-Blöbaum, Sina
  id: '16494'
  last_name: Ober-Blöbaum
citation:
  ama: Flaßkamp K, Hage-Packhäuser S, Ober-Blöbaum S. Symmetry exploiting control
    of hybrid mechanical systems. <i>Journal of Computational Dynamics</i>. 2015;2(1):25-50.
  apa: Flaßkamp, K., Hage-Packhäuser, S., &#38; Ober-Blöbaum, S. (2015). Symmetry
    exploiting control of hybrid mechanical systems. <i>Journal of Computational Dynamics</i>,
    <i>2(1)</i>, 25–50.
  bibtex: '@article{Flaßkamp_Hage-Packhäuser_Ober-Blöbaum_2015, title={Symmetry exploiting
    control of hybrid mechanical systems}, volume={2(1)}, journal={Journal of Computational
    Dynamics}, author={Flaßkamp, K. and Hage-Packhäuser, S. and Ober-Blöbaum, Sina},
    year={2015}, pages={25–50} }'
  chicago: 'Flaßkamp, K., S. Hage-Packhäuser, and Sina Ober-Blöbaum. “Symmetry Exploiting
    Control of Hybrid Mechanical Systems.” <i>Journal of Computational Dynamics</i>
    2(1) (2015): 25–50.'
  ieee: K. Flaßkamp, S. Hage-Packhäuser, and S. Ober-Blöbaum, “Symmetry exploiting
    control of hybrid mechanical systems,” <i>Journal of Computational Dynamics</i>,
    vol. 2(1), pp. 25–50, 2015.
  mla: Flaßkamp, K., et al. “Symmetry Exploiting Control of Hybrid Mechanical Systems.”
    <i>Journal of Computational Dynamics</i>, vol. 2(1), 2015, pp. 25–50.
  short: K. Flaßkamp, S. Hage-Packhäuser, S. Ober-Blöbaum, Journal of Computational
    Dynamics 2(1) (2015) 25–50.
date_created: 2022-01-18T11:41:57Z
date_updated: 2022-01-21T08:26:14Z
department:
- _id: '636'
language:
- iso: eng
page: 25-50
publication: Journal of Computational Dynamics
status: public
title: Symmetry exploiting control of hybrid mechanical systems
type: journal_article
user_id: '15694'
volume: 2(1)
year: '2015'
...
---
_id: '29403'
author:
- first_name: C. M.
  full_name: Campos, C. M.
  last_name: Campos
- first_name: Sina
  full_name: Ober-Blöbaum, Sina
  id: '16494'
  last_name: Ober-Blöbaum
- first_name: E.
  full_name: Trélat, E.
  last_name: Trélat
citation:
  ama: Campos CM, Ober-Blöbaum S, Trélat E. High order variational integrators in
    the optimal control of mechanical systems. <i>Discrete and Continuous Dynamical
    Systems</i>. 2015;35(9):4193-4223.
  apa: Campos, C. M., Ober-Blöbaum, S., &#38; Trélat, E. (2015). High order variational
    integrators in the optimal control of mechanical systems. <i>Discrete and Continuous
    Dynamical Systems</i>, <i>35(9)</i>, 4193–4223.
  bibtex: '@article{Campos_Ober-Blöbaum_Trélat_2015, title={High order variational
    integrators in the optimal control of mechanical systems}, volume={35(9)}, journal={Discrete
    and Continuous Dynamical Systems}, author={Campos, C. M. and Ober-Blöbaum, Sina
    and Trélat, E.}, year={2015}, pages={4193–4223} }'
  chicago: 'Campos, C. M., Sina Ober-Blöbaum, and E. Trélat. “High Order Variational
    Integrators in the Optimal Control of Mechanical Systems.” <i>Discrete and Continuous
    Dynamical Systems</i> 35(9) (2015): 4193–4223.'
  ieee: C. M. Campos, S. Ober-Blöbaum, and E. Trélat, “High order variational integrators
    in the optimal control of mechanical systems,” <i>Discrete and Continuous Dynamical
    Systems</i>, vol. 35(9), pp. 4193–4223, 2015.
  mla: Campos, C. M., et al. “High Order Variational Integrators in the Optimal Control
    of Mechanical Systems.” <i>Discrete and Continuous Dynamical Systems</i>, vol.
    35(9), 2015, pp. 4193–223.
  short: C.M. Campos, S. Ober-Blöbaum, E. Trélat, Discrete and Continuous Dynamical
    Systems 35(9) (2015) 4193–4223.
date_created: 2022-01-18T11:45:51Z
date_updated: 2022-01-21T10:28:48Z
department:
- _id: '636'
language:
- iso: eng
page: 4193-4223
publication: Discrete and Continuous Dynamical Systems
status: public
title: High order variational integrators in the optimal control of mechanical systems
type: journal_article
user_id: '15694'
volume: 35(9)
year: '2015'
...
---
_id: '31291'
abstract:
- lang: eng
  text: <jats:p>We consider a simple model of an open partially expanding map. Its
    trapped set <jats:inline-formula><jats:alternatives><jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink"
    mime-subtype="gif" xlink:type="simple" xlink:href="S0143385715000346_inline1"
    /><jats:tex-math>${\mathcal{K}}$</jats:tex-math></jats:alternatives></jats:inline-formula>
    in phase space is a fractal set. We first show that there is a well-defined discrete
    spectrum of Ruelle resonances which describes the asymptotic of correlation functions
    for large time and which is parametrized by the Fourier component <jats:inline-formula><jats:alternatives><jats:inline-graphic
    xmlns:xlink="http://www.w3.org/1999/xlink" mime-subtype="gif" xlink:type="simple"
    xlink:href="S0143385715000346_inline2" /><jats:tex-math>$\unicode[STIX]{x1D708}$</jats:tex-math></jats:alternatives></jats:inline-formula>
    in the neutral direction of the dynamics. We introduce a specific hypothesis on
    the dynamics that we call ‘minimal captivity’. This hypothesis is stable under
    perturbations and means that the dynamics is univalued in a neighborhood of <jats:inline-formula><jats:alternatives><jats:inline-graphic
    xmlns:xlink="http://www.w3.org/1999/xlink" mime-subtype="gif" xlink:type="simple"
    xlink:href="S0143385715000346_inline3" /><jats:tex-math>${\mathcal{K}}$</jats:tex-math></jats:alternatives></jats:inline-formula>.
    Under this hypothesis we show the existence of an asymptotic spectral gap and
    a fractal Weyl law for the upper bound of density of Ruelle resonances in the
    semiclassical limit <jats:inline-formula><jats:alternatives><jats:inline-graphic
    xmlns:xlink="http://www.w3.org/1999/xlink" mime-subtype="gif" xlink:type="simple"
    xlink:href="S0143385715000346_inline4" /><jats:tex-math>$\unicode[STIX]{x1D708}\rightarrow
    \infty$</jats:tex-math></jats:alternatives></jats:inline-formula>. Some numerical
    computations with the truncated Gauss map and Bowen–Series maps illustrate these
    results.</jats:p>
author:
- first_name: JEAN FRANCOIS
  full_name: ARNOLDI, JEAN FRANCOIS
  last_name: ARNOLDI
- first_name: FRÉDÉRIC
  full_name: FAURE, FRÉDÉRIC
  last_name: FAURE
- first_name: Tobias
  full_name: Weich, Tobias
  id: '49178'
  last_name: Weich
  orcid: 0000-0002-9648-6919
citation:
  ama: ARNOLDI JF, FAURE F, Weich T. Asymptotic spectral gap and Weyl law for Ruelle
    resonances of open partially expanding maps. <i>Ergodic Theory and Dynamical Systems</i>.
    2015;37(1):1-58. doi:<a href="https://doi.org/10.1017/etds.2015.34">10.1017/etds.2015.34</a>
  apa: ARNOLDI, J. F., FAURE, F., &#38; Weich, T. (2015). Asymptotic spectral gap
    and Weyl law for Ruelle resonances of open partially expanding maps. <i>Ergodic
    Theory and Dynamical Systems</i>, <i>37</i>(1), 1–58. <a href="https://doi.org/10.1017/etds.2015.34">https://doi.org/10.1017/etds.2015.34</a>
  bibtex: '@article{ARNOLDI_FAURE_Weich_2015, title={Asymptotic spectral gap and Weyl
    law for Ruelle resonances of open partially expanding maps}, volume={37}, DOI={<a
    href="https://doi.org/10.1017/etds.2015.34">10.1017/etds.2015.34</a>}, number={1},
    journal={Ergodic Theory and Dynamical Systems}, publisher={Cambridge University
    Press (CUP)}, author={ARNOLDI, JEAN FRANCOIS and FAURE, FRÉDÉRIC and Weich, Tobias},
    year={2015}, pages={1–58} }'
  chicago: 'ARNOLDI, JEAN FRANCOIS, FRÉDÉRIC FAURE, and Tobias Weich. “Asymptotic
    Spectral Gap and Weyl Law for Ruelle Resonances of Open Partially Expanding Maps.”
    <i>Ergodic Theory and Dynamical Systems</i> 37, no. 1 (2015): 1–58. <a href="https://doi.org/10.1017/etds.2015.34">https://doi.org/10.1017/etds.2015.34</a>.'
  ieee: 'J. F. ARNOLDI, F. FAURE, and T. Weich, “Asymptotic spectral gap and Weyl
    law for Ruelle resonances of open partially expanding maps,” <i>Ergodic Theory
    and Dynamical Systems</i>, vol. 37, no. 1, pp. 1–58, 2015, doi: <a href="https://doi.org/10.1017/etds.2015.34">10.1017/etds.2015.34</a>.'
  mla: ARNOLDI, JEAN FRANCOIS, et al. “Asymptotic Spectral Gap and Weyl Law for Ruelle
    Resonances of Open Partially Expanding Maps.” <i>Ergodic Theory and Dynamical
    Systems</i>, vol. 37, no. 1, Cambridge University Press (CUP), 2015, pp. 1–58,
    doi:<a href="https://doi.org/10.1017/etds.2015.34">10.1017/etds.2015.34</a>.
  short: J.F. ARNOLDI, F. FAURE, T. Weich, Ergodic Theory and Dynamical Systems 37
    (2015) 1–58.
date_created: 2022-05-17T12:55:26Z
date_updated: 2022-05-19T10:15:54Z
department:
- _id: '10'
- _id: '623'
- _id: '548'
doi: 10.1017/etds.2015.34
external_id:
  arxiv:
  - '1302.3087'
intvolume: '        37'
issue: '1'
keyword:
- Applied Mathematics
- General Mathematics
language:
- iso: eng
page: 1-58
publication: Ergodic Theory and Dynamical Systems
publication_identifier:
  issn:
  - 0143-3857
  - 1469-4417
publication_status: published
publisher: Cambridge University Press (CUP)
status: public
title: Asymptotic spectral gap and Weyl law for Ruelle resonances of open partially
  expanding maps
type: journal_article
user_id: '49178'
volume: 37
year: '2015'
...
---
_id: '31293'
author:
- first_name: Tobias
  full_name: Weich, Tobias
  id: '49178'
  last_name: Weich
  orcid: 0000-0002-9648-6919
citation:
  ama: Weich T. Resonance Chains and Geometric Limits on Schottky Surfaces. <i>Communications
    in Mathematical Physics</i>. 2015;337(2):727-765. doi:<a href="https://doi.org/10.1007/s00220-015-2359-z">10.1007/s00220-015-2359-z</a>
  apa: Weich, T. (2015). Resonance Chains and Geometric Limits on Schottky Surfaces.
    <i>Communications in Mathematical Physics</i>, <i>337</i>(2), 727–765. <a href="https://doi.org/10.1007/s00220-015-2359-z">https://doi.org/10.1007/s00220-015-2359-z</a>
  bibtex: '@article{Weich_2015, title={Resonance Chains and Geometric Limits on Schottky
    Surfaces}, volume={337}, DOI={<a href="https://doi.org/10.1007/s00220-015-2359-z">10.1007/s00220-015-2359-z</a>},
    number={2}, journal={Communications in Mathematical Physics}, publisher={Springer
    Science and Business Media LLC}, author={Weich, Tobias}, year={2015}, pages={727–765}
    }'
  chicago: 'Weich, Tobias. “Resonance Chains and Geometric Limits on Schottky Surfaces.”
    <i>Communications in Mathematical Physics</i> 337, no. 2 (2015): 727–65. <a href="https://doi.org/10.1007/s00220-015-2359-z">https://doi.org/10.1007/s00220-015-2359-z</a>.'
  ieee: 'T. Weich, “Resonance Chains and Geometric Limits on Schottky Surfaces,” <i>Communications
    in Mathematical Physics</i>, vol. 337, no. 2, pp. 727–765, 2015, doi: <a href="https://doi.org/10.1007/s00220-015-2359-z">10.1007/s00220-015-2359-z</a>.'
  mla: Weich, Tobias. “Resonance Chains and Geometric Limits on Schottky Surfaces.”
    <i>Communications in Mathematical Physics</i>, vol. 337, no. 2, Springer Science
    and Business Media LLC, 2015, pp. 727–65, doi:<a href="https://doi.org/10.1007/s00220-015-2359-z">10.1007/s00220-015-2359-z</a>.
  short: T. Weich, Communications in Mathematical Physics 337 (2015) 727–765.
date_created: 2022-05-17T12:56:21Z
date_updated: 2022-05-19T10:16:21Z
department:
- _id: '10'
- _id: '623'
- _id: '548'
doi: 10.1007/s00220-015-2359-z
external_id:
  arxiv:
  - '1403.7419 '
intvolume: '       337'
issue: '2'
keyword:
- Mathematical Physics
- Statistical and Nonlinear Physics
language:
- iso: eng
page: 727-765
publication: Communications in Mathematical Physics
publication_identifier:
  issn:
  - 0010-3616
  - 1432-0916
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Resonance Chains and Geometric Limits on Schottky Surfaces
type: journal_article
user_id: '49178'
volume: 337
year: '2015'
...
---
_id: '33012'
author:
- first_name: Thorsten
  full_name: Vogt, Thorsten
  last_name: Vogt
- first_name: Norbert
  full_name: Fröhleke, Norbert
  last_name: Fröhleke
- first_name: Joachim
  full_name: Böcker, Joachim
  id: '66'
  last_name: Böcker
  orcid: 0000-0002-8480-7295
- first_name: Stefan
  full_name: Kempen, Stefan
  last_name: Kempen
citation:
  ama: 'Vogt T, Fröhleke N, Böcker J, Kempen S. Multi-Objective Storage Operating
    Strategy for Industrial Microgrids. In: <i>German-Korean Symposium on Power Electronics</i>.
    ; 2015.'
  apa: Vogt, T., Fröhleke, N., Böcker, J., &#38; Kempen, S. (2015). Multi-Objective
    Storage Operating Strategy for Industrial Microgrids. <i>German-Korean Symposium
    on Power Electronics</i>.
  bibtex: '@inproceedings{Vogt_Fröhleke_Böcker_Kempen_2015, title={Multi-Objective
    Storage Operating Strategy for Industrial Microgrids}, booktitle={German-Korean
    Symposium on Power Electronics}, author={Vogt, Thorsten and Fröhleke, Norbert
    and Böcker, Joachim and Kempen, Stefan}, year={2015} }'
  chicago: Vogt, Thorsten, Norbert Fröhleke, Joachim Böcker, and Stefan Kempen. “Multi-Objective
    Storage Operating Strategy for Industrial Microgrids.” In <i>German-Korean Symposium
    on Power Electronics</i>, 2015.
  ieee: T. Vogt, N. Fröhleke, J. Böcker, and S. Kempen, “Multi-Objective Storage Operating
    Strategy for Industrial Microgrids,” Seoul, Korea, 2015.
  mla: Vogt, Thorsten, et al. “Multi-Objective Storage Operating Strategy for Industrial
    Microgrids.” <i>German-Korean Symposium on Power Electronics</i>, 2015.
  short: 'T. Vogt, N. Fröhleke, J. Böcker, S. Kempen, in: German-Korean Symposium
    on Power Electronics, 2015.'
conference:
  location: Seoul, Korea
  start_date: '2015'
date_created: 2022-08-18T15:26:07Z
date_updated: 2022-08-19T06:22:14Z
ddc:
- '620'
department:
- _id: '52'
file:
- access_level: closed
  content_type: application/pdf
  creator: boecker
  date_created: 2022-08-18T15:30:38Z
  date_updated: 2022-08-18T15:30:38Z
  file_id: '33013'
  file_name: Boecker_Storages_in_Microgrid.pdf
  file_size: 430334
  relation: main_file
  success: 1
file_date_updated: 2022-08-18T15:30:38Z
has_accepted_license: '1'
language:
- iso: eng
publication: German-Korean Symposium on Power Electronics
status: public
title: Multi-Objective Storage Operating Strategy for Industrial Microgrids
type: conference
user_id: '66'
year: '2015'
...
---
_id: '33030'
author:
- first_name: 'T. '
  full_name: 'Vogt, T. '
  last_name: Vogt
- first_name: N.
  full_name: Fröhleke, N.
  last_name: Fröhleke
- first_name: Joachim
  full_name: Böcker, Joachim
  id: '66'
  last_name: Böcker
  orcid: 0000-0002-8480-7295
- first_name: S.
  full_name: Kempen, S.
  last_name: Kempen
citation:
  ama: 'Vogt T, Fröhleke N, Böcker J, Kempen S. Mehrziel-Speicherbetriebsstrategie
    für industrielle Microgrids. In: ; 2015.'
  apa: Vogt, T., Fröhleke, N., Böcker, J., &#38; Kempen, S. (2015). <i>Mehrziel-Speicherbetriebsstrategie
    für industrielle Microgrids</i>. ETG-Fachtagung „Von Smart Grids zu Smart Markets“,
    Kassel.
  bibtex: '@inproceedings{Vogt_Fröhleke_Böcker_Kempen_2015, title={Mehrziel-Speicherbetriebsstrategie
    für industrielle Microgrids}, author={Vogt, T.  and Fröhleke, N. and Böcker, Joachim
    and Kempen, S.}, year={2015} }'
  chicago: Vogt, T. , N. Fröhleke, Joachim Böcker, and S. Kempen. “Mehrziel-Speicherbetriebsstrategie
    Für Industrielle Microgrids,” 2015.
  ieee: T. Vogt, N. Fröhleke, J. Böcker, and S. Kempen, “Mehrziel-Speicherbetriebsstrategie
    für industrielle Microgrids,” presented at the ETG-Fachtagung „Von Smart Grids
    zu Smart Markets“, Kassel, 2015.
  mla: Vogt, T., et al. <i>Mehrziel-Speicherbetriebsstrategie Für Industrielle Microgrids</i>.
    2015.
  short: 'T. Vogt, N. Fröhleke, J. Böcker, S. Kempen, in: 2015.'
conference:
  location: Kassel
  name: ETG-Fachtagung „Von Smart Grids zu Smart Markets“
date_created: 2022-08-19T09:04:44Z
date_updated: 2022-08-19T09:04:48Z
department:
- _id: '52'
language:
- iso: eng
status: public
title: Mehrziel-Speicherbetriebsstrategie für industrielle Microgrids
type: conference
user_id: '71353'
year: '2015'
...
---
_id: '33359'
abstract:
- lang: eng
  text: 'We consider Gibbs distributions on permutations of a locally finite infinite
    set X⊂R, where a permutation σ of X is assigned (formal) energy ∑x∈XV(σ(x)−x).
    This is motivated by Feynman’s path representation of the quantum Bose gas; the
    choice X:=Z and V(x):=αx2 is of principal interest. Under suitable regularity
    conditions on the set X and the potential V, we establish existence and a full
    classification of the infinite-volume Gibbs measures for this problem, including
    a result on the number of infinite cycles of typical permutations. Unlike earlier
    results, our conclusions are not limited to small densities and/or high temperatures. '
author:
- first_name: Thomas
  full_name: Richthammer, Thomas
  id: '62054'
  last_name: Richthammer
- first_name: Marek
  full_name: Biskup, Marek
  last_name: Biskup
citation:
  ama: Richthammer T, Biskup M. Gibbs measures on permutations over one-dimensional
    discrete point sets. <i>Communications in Mathematical Physics</i>. 2015;25(2):898-929.
    doi:<a href="https://doi.org/10.48550/arXiv.1310.0248">https://doi.org/10.48550/arXiv.1310.0248</a>
  apa: Richthammer, T., &#38; Biskup, M. (2015). Gibbs measures on permutations over
    one-dimensional discrete point sets. <i>Communications in Mathematical Physics</i>,
    <i>25</i>(2), 898–929. <a href="https://doi.org/10.48550/arXiv.1310.0248">https://doi.org/10.48550/arXiv.1310.0248</a>
  bibtex: '@article{Richthammer_Biskup_2015, title={Gibbs measures on permutations
    over one-dimensional discrete point sets}, volume={25}, DOI={<a href="https://doi.org/10.48550/arXiv.1310.0248">https://doi.org/10.48550/arXiv.1310.0248</a>},
    number={2}, journal={Communications in Mathematical Physics}, publisher={Springer
    Science+Business Media}, author={Richthammer, Thomas and Biskup, Marek}, year={2015},
    pages={898–929} }'
  chicago: 'Richthammer, Thomas, and Marek Biskup. “Gibbs Measures on Permutations
    over One-Dimensional Discrete Point Sets.” <i>Communications in Mathematical Physics</i>
    25, no. 2 (2015): 898–929. <a href="https://doi.org/10.48550/arXiv.1310.0248">https://doi.org/10.48550/arXiv.1310.0248</a>.'
  ieee: 'T. Richthammer and M. Biskup, “Gibbs measures on permutations over one-dimensional
    discrete point sets,” <i>Communications in Mathematical Physics</i>, vol. 25,
    no. 2, pp. 898–929, 2015, doi: <a href="https://doi.org/10.48550/arXiv.1310.0248">https://doi.org/10.48550/arXiv.1310.0248</a>.'
  mla: Richthammer, Thomas, and Marek Biskup. “Gibbs Measures on Permutations over
    One-Dimensional Discrete Point Sets.” <i>Communications in Mathematical Physics</i>,
    vol. 25, no. 2, Springer Science+Business Media, 2015, pp. 898–929, doi:<a href="https://doi.org/10.48550/arXiv.1310.0248">https://doi.org/10.48550/arXiv.1310.0248</a>.
  short: T. Richthammer, M. Biskup, Communications in Mathematical Physics 25 (2015)
    898–929.
date_created: 2022-09-14T04:57:58Z
date_updated: 2022-09-14T04:58:02Z
department:
- _id: '96'
doi: https://doi.org/10.48550/arXiv.1310.0248
intvolume: '        25'
issue: '2'
language:
- iso: eng
page: 898-929
publication: Communications in Mathematical Physics
publication_status: published
publisher: Springer Science+Business Media
status: public
title: Gibbs measures on permutations over one-dimensional discrete point sets
type: journal_article
user_id: '85821'
volume: 25
year: '2015'
...
---
_id: '33358'
abstract:
- lang: eng
  text: 'We study the workload processes of two M/G/1 queueing systems with restricted
    capacity: in Model 1 any service requirement that would exceed a certain capacity
    threshold is truncated; in Model 2 new arrivals do not enter the system if they
    have to wait more than a fixed threshold time in line. For Model 1 we obtain several
    results concerning the rate of convergence to equilibrium. In particular, we derive
    uniform bounds for geometric ergodicity with respect to certain subclasses. For
    Model 2 geometric ergodicity follows from the finiteness of the moment-generating
    function of the service time distribution. We derive bounds for the convergence
    rates in special cases. The proofs use the coupling method.'
author:
- first_name: Martin
  full_name: Kolb, Martin
  id: '48880'
  last_name: Kolb
- first_name: Wolfgang
  full_name: Stadje, Wolfgang
  last_name: Stadje
- first_name: Achim
  full_name: Wübker, Achim
  last_name: Wübker
citation:
  ama: Kolb M, Stadje W, Wübker A. The rate of convergence to stationarity for M/G/1
    models with admission controls via coupling. <i>Stochastic Models</i>. 2015;32(1):121-135.
    doi:<a href="http://dx.doi.org/10.1080/15326349.2015.1090322">http://dx.doi.org/10.1080/15326349.2015.1090322</a>
  apa: Kolb, M., Stadje, W., &#38; Wübker, A. (2015). The rate of convergence to stationarity
    for M/G/1 models with admission controls via coupling. <i>Stochastic Models</i>,
    <i>32</i>(1), 121–135. <a href="http://dx.doi.org/10.1080/15326349.2015.1090322">http://dx.doi.org/10.1080/15326349.2015.1090322</a>
  bibtex: '@article{Kolb_Stadje_Wübker_2015, title={The rate of convergence to stationarity
    for M/G/1 models with admission controls via coupling}, volume={32}, DOI={<a href="http://dx.doi.org/10.1080/15326349.2015.1090322">http://dx.doi.org/10.1080/15326349.2015.1090322</a>},
    number={1}, journal={Stochastic Models}, publisher={INFORMS}, author={Kolb, Martin
    and Stadje, Wolfgang and Wübker, Achim}, year={2015}, pages={121–135} }'
  chicago: 'Kolb, Martin, Wolfgang Stadje, and Achim Wübker. “The Rate of Convergence
    to Stationarity for M/G/1 Models with Admission Controls via Coupling.” <i>Stochastic
    Models</i> 32, no. 1 (2015): 121–35. <a href="http://dx.doi.org/10.1080/15326349.2015.1090322">http://dx.doi.org/10.1080/15326349.2015.1090322</a>.'
  ieee: 'M. Kolb, W. Stadje, and A. Wübker, “The rate of convergence to stationarity
    for M/G/1 models with admission controls via coupling,” <i>Stochastic Models</i>,
    vol. 32, no. 1, pp. 121–135, 2015, doi: <a href="http://dx.doi.org/10.1080/15326349.2015.1090322">http://dx.doi.org/10.1080/15326349.2015.1090322</a>.'
  mla: Kolb, Martin, et al. “The Rate of Convergence to Stationarity for M/G/1 Models
    with Admission Controls via Coupling.” <i>Stochastic Models</i>, vol. 32, no.
    1, INFORMS, 2015, pp. 121–35, doi:<a href="http://dx.doi.org/10.1080/15326349.2015.1090322">http://dx.doi.org/10.1080/15326349.2015.1090322</a>.
  short: M. Kolb, W. Stadje, A. Wübker, Stochastic Models 32 (2015) 121–135.
date_created: 2022-09-14T04:52:15Z
date_updated: 2022-09-14T04:52:19Z
department:
- _id: '96'
doi: http://dx.doi.org/10.1080/15326349.2015.1090322
intvolume: '        32'
issue: '1'
language:
- iso: eng
page: 121-135
publication: Stochastic Models
publication_status: published
publisher: INFORMS
status: public
title: The rate of convergence to stationarity for M/G/1 models with admission controls
  via coupling
type: journal_article
user_id: '85821'
volume: 32
year: '2015'
...
---
_id: '33360'
abstract:
- lang: eng
  text: We prove a local limit theorem for the area of the positive excursion of random
    walks with zero mean and finite variance. Our main result complements previous
    work of Caravenna and Chaumont; Sohier, as well as Kim and Pittel.
author:
- first_name: Martin
  full_name: Kolb, Martin
  id: '48880'
  last_name: Kolb
- first_name: Denis
  full_name: Denisov, Denis
  last_name: Denisov
- first_name: Vitali
  full_name: Wachtel, Vitali
  last_name: Wachtel
citation:
  ama: Kolb M, Denisov D, Wachtel V. Local asymptotics for the area of random walk
    excursions. <i>Journal of the London Mathematical Society</i>. 2015;91(2):495-513.
  apa: Kolb, M., Denisov, D., &#38; Wachtel, V. (2015). Local asymptotics for the
    area of random walk excursions. <i>Journal of the London Mathematical Society</i>,
    <i>91</i>(2), 495–513.
  bibtex: '@article{Kolb_Denisov_Wachtel_2015, title={Local asymptotics for the area
    of random walk excursions}, volume={91}, number={2}, journal={Journal of the London
    Mathematical Society}, publisher={London Mathematical Society}, author={Kolb,
    Martin and Denisov, Denis and Wachtel, Vitali}, year={2015}, pages={495–513} }'
  chicago: 'Kolb, Martin, Denis Denisov, and Vitali Wachtel. “Local Asymptotics for
    the Area of Random Walk Excursions.” <i>Journal of the London Mathematical Society</i>
    91, no. 2 (2015): 495–513.'
  ieee: M. Kolb, D. Denisov, and V. Wachtel, “Local asymptotics for the area of random
    walk excursions,” <i>Journal of the London Mathematical Society</i>, vol. 91,
    no. 2, pp. 495–513, 2015.
  mla: Kolb, Martin, et al. “Local Asymptotics for the Area of Random Walk Excursions.”
    <i>Journal of the London Mathematical Society</i>, vol. 91, no. 2, London Mathematical
    Society, 2015, pp. 495–513.
  short: M. Kolb, D. Denisov, V. Wachtel, Journal of the London Mathematical Society
    91 (2015) 495–513.
date_created: 2022-09-14T05:01:41Z
date_updated: 2022-09-14T05:01:45Z
department:
- _id: '96'
intvolume: '        91'
issue: '2'
language:
- iso: eng
page: 495-513
publication: Journal of the London Mathematical Society
publication_status: published
publisher: London Mathematical Society
status: public
title: Local asymptotics for the area of random walk excursions
type: journal_article
user_id: '85821'
volume: 91
year: '2015'
...
---
_id: '6719'
author:
- first_name: Stefan
  full_name: Heindorf, Stefan
  id: '11871'
  last_name: Heindorf
  orcid: 0000-0002-4525-6865
- first_name: Martin
  full_name: Potthast, Martin
  last_name: Potthast
- first_name: Benno
  full_name: Stein, Benno
  last_name: Stein
- first_name: Gregor
  full_name: Engels, Gregor
  id: '107'
  last_name: Engels
citation:
  ama: 'Heindorf S, Potthast M, Stein B, Engels G. Towards Vandalism Detection in
    Knowledge Bases. In: <i>SIGIR</i>. ACM; 2015:831-834. doi:<a href="https://doi.org/10.1145/2766462.2767804">10.1145/2766462.2767804</a>'
  apa: Heindorf, S., Potthast, M., Stein, B., &#38; Engels, G. (2015). Towards Vandalism
    Detection in Knowledge Bases. <i>SIGIR</i>, 831–834. <a href="https://doi.org/10.1145/2766462.2767804">https://doi.org/10.1145/2766462.2767804</a>
  bibtex: '@inproceedings{Heindorf_Potthast_Stein_Engels_2015, title={Towards Vandalism
    Detection in Knowledge Bases}, DOI={<a href="https://doi.org/10.1145/2766462.2767804">10.1145/2766462.2767804</a>},
    booktitle={SIGIR}, publisher={ACM}, author={Heindorf, Stefan and Potthast, Martin
    and Stein, Benno and Engels, Gregor}, year={2015}, pages={831–834} }'
  chicago: Heindorf, Stefan, Martin Potthast, Benno Stein, and Gregor Engels. “Towards
    Vandalism Detection in Knowledge Bases.” In <i>SIGIR</i>, 831–34. ACM, 2015. <a
    href="https://doi.org/10.1145/2766462.2767804">https://doi.org/10.1145/2766462.2767804</a>.
  ieee: 'S. Heindorf, M. Potthast, B. Stein, and G. Engels, “Towards Vandalism Detection
    in Knowledge Bases,” in <i>SIGIR</i>, 2015, pp. 831–834, doi: <a href="https://doi.org/10.1145/2766462.2767804">10.1145/2766462.2767804</a>.'
  mla: Heindorf, Stefan, et al. “Towards Vandalism Detection in Knowledge Bases.”
    <i>SIGIR</i>, ACM, 2015, pp. 831–34, doi:<a href="https://doi.org/10.1145/2766462.2767804">10.1145/2766462.2767804</a>.
  short: 'S. Heindorf, M. Potthast, B. Stein, G. Engels, in: SIGIR, ACM, 2015, pp.
    831–834.'
date_created: 2019-01-15T08:45:08Z
date_updated: 2022-10-17T15:07:08Z
ddc:
- '000'
department:
- _id: '66'
doi: 10.1145/2766462.2767804
file:
- access_level: closed
  content_type: application/pdf
  creator: heindorf
  date_created: 2019-04-27T06:06:08Z
  date_updated: 2019-04-27T06:06:08Z
  file_id: '9517'
  file_name: heindorf2015_SIGIR.pdf
  file_size: 322456
  relation: main_file
  success: 1
file_date_updated: 2019-04-27T06:06:08Z
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://groups.uni-paderborn.de/fg-engels/publications_pdfs/Konferenzbeitraege/heindorf2015_SIGIR.pdf
oa: '1'
page: 831-834
publication: SIGIR
publication_identifier:
  isbn:
  - '9781450336215'
publication_status: published
publisher: ACM
status: public
title: Towards Vandalism Detection in Knowledge Bases
type: conference
user_id: '11871'
year: '2015'
...
---
_id: '24290'
abstract:
- lang: eng
  text: "The recent rapid development of silicon photonics technology has spurred
    the process of on-chip \r\nintegration of all kinds of opto-electronic components.
    One of the most common components of such type \r\nis the opto-electrical receiver.
    The monolithic implementation of the receiver could potentially have lower \r\npower
    consumption, higher sensitivity and bandwidth due to very short diode to amplifier
    connection \r\nlength, which has very low parasitic capacitance and series resistance.
    The SiGe photodiode itself is also \r\nvery compact, thus lowering the junction
    capacitance and improving its bandwidth. Among the different optical communication
    systems, coherent transmission lately received a lot of \r\nattention due to the
    rising requirements of the optical link capacity, and it was shown that this particular
    \r\napproach could benefit greatly from the monolithic integration, since the
    major component required for the \r\ndemodulation on the receiver side – 90° optical
    hybrid – could be implemented fully passive and directly \r\non the same chip
    as the receiver itself, together with digital post-processing circuitry. Despite
    the initial \r\ncomplexity of the modulation scheme, advanced silicon photonics
    components like this optical hybrid \r\ncould make coherent transmission attractive
    even for short-range optical links. I would like to present the actual designs,
    implementation and measurement results of 90° fully passive \r\noptical hybrids,
    implemented in the IHP SG25PIC (passive photonics IC) technology. One of the designs
    \r\nis based on 4x4 multimode interferometer (MMI). The other one is based on
    two separate 2x2 MMIs with \r\nadditional delay element. The final designs didn’t
    require any additional tuning after fabrication and have \r\nshown sufficient
    precision and performance for a coherent system design. The results of this work
    were \r\nlater used for the design of monolithic coherent receiver."
author:
- first_name: Sergiy
  full_name: Gudyriev, Sergiy
  last_name: Gudyriev
- first_name: Christoph
  full_name: Scheytt, Christoph
  id: '37144'
  last_name: Scheytt
  orcid: https://orcid.org/0000-0002-5950-6618
citation:
  ama: 'Gudyriev S, Scheytt C. Silicon photonics 90° optical hybrid design for coherent
    receivers. In: <i>Kleinheubacher Tagung 2015</i>. ; 2015:18.'
  apa: Gudyriev, S., &#38; Scheytt, C. (2015). Silicon photonics 90° optical hybrid
    design for coherent receivers. <i>Kleinheubacher Tagung 2015</i>, 18.
  bibtex: '@inproceedings{Gudyriev_Scheytt_2015, place={Miltenberg; Germany}, title={Silicon
    photonics 90° optical hybrid design for coherent receivers}, booktitle={Kleinheubacher
    Tagung 2015}, author={Gudyriev, Sergiy and Scheytt, Christoph}, year={2015}, pages={18}
    }'
  chicago: Gudyriev, Sergiy, and Christoph Scheytt. “Silicon Photonics 90° Optical
    Hybrid Design for Coherent Receivers.” In <i>Kleinheubacher Tagung 2015</i>, 18.
    Miltenberg; Germany, 2015.
  ieee: S. Gudyriev and C. Scheytt, “Silicon photonics 90° optical hybrid design for
    coherent receivers,” in <i>Kleinheubacher Tagung 2015</i>, 2015, p. 18.
  mla: Gudyriev, Sergiy, and Christoph Scheytt. “Silicon Photonics 90° Optical Hybrid
    Design for Coherent Receivers.” <i>Kleinheubacher Tagung 2015</i>, 2015, p. 18.
  short: 'S. Gudyriev, C. Scheytt, in: Kleinheubacher Tagung 2015, Miltenberg; Germany,
    2015, p. 18.'
date_created: 2021-09-14T07:06:32Z
date_updated: 2023-01-10T12:50:06Z
department:
- _id: '58'
- _id: '230'
language:
- iso: eng
page: '18'
place: Miltenberg; Germany
publication: Kleinheubacher Tagung 2015
related_material:
  link:
  - relation: confirmation
    url: https://www.kh2015.de/KH2015_book_of_abstracts.pdf
status: public
title: Silicon photonics 90° optical hybrid design for coherent receivers
type: conference
user_id: '15931'
year: '2015'
...
---
_id: '47607'
author:
- first_name: Christian
  full_name: Salinga, Christian
  last_name: Salinga
- first_name: Heidrun
  full_name: Heinke, Heidrun
  last_name: Heinke
- first_name: Gabriela
  full_name: Jonas-Ahrend, Gabriela
  id: '77633'
  last_name: Jonas-Ahrend
  orcid: 0000-0003-3898-954X
- first_name: 'Heike '
  full_name: 'Theyßen, Heike '
  last_name: Theyßen
- first_name: Ursula
  full_name: Bahr, Ursula
  last_name: Bahr
- first_name: Roger
  full_name: Erb, Roger
  last_name: Erb
citation:
  ama: 'Salinga C, Heinke H, Jonas-Ahrend G, Theyßen H, Bahr U, Erb R. MiLeNa – ein
    überregionales Programm zur MINT-Lehrernachwuchsförderung. In: ; 2015.'
  apa: Salinga, C., Heinke, H., Jonas-Ahrend, G., Theyßen, H., Bahr, U., &#38; Erb,
    R. (2015). <i>MiLeNa – ein überregionales Programm zur MINT-Lehrernachwuchsförderung</i>.
    Jahrestagung der Gesellschaft für Didaktik der Chemie und Physik (GDCP), Bremen.
  bibtex: '@inproceedings{Salinga_Heinke_Jonas-Ahrend_Theyßen_Bahr_Erb_2015, title={MiLeNa
    – ein überregionales Programm zur MINT-Lehrernachwuchsförderung}, author={Salinga,
    Christian and Heinke, Heidrun and Jonas-Ahrend, Gabriela and Theyßen, Heike  and
    Bahr, Ursula and Erb, Roger}, year={2015} }'
  chicago: Salinga, Christian, Heidrun Heinke, Gabriela Jonas-Ahrend, Heike  Theyßen,
    Ursula Bahr, and Roger Erb. “MiLeNa – Ein Überregionales Programm Zur MINT-Lehrernachwuchsförderung,”
    2015.
  ieee: C. Salinga, H. Heinke, G. Jonas-Ahrend, H. Theyßen, U. Bahr, and R. Erb, “MiLeNa
    – ein überregionales Programm zur MINT-Lehrernachwuchsförderung,” presented at
    the Jahrestagung der Gesellschaft für Didaktik der Chemie und Physik (GDCP), Bremen,
    2015.
  mla: Salinga, Christian, et al. <i>MiLeNa – Ein Überregionales Programm Zur MINT-Lehrernachwuchsförderung</i>.
    2015.
  short: 'C. Salinga, H. Heinke, G. Jonas-Ahrend, H. Theyßen, U. Bahr, R. Erb, in:
    2015.'
conference:
  location: Bremen
  name: Jahrestagung der Gesellschaft für Didaktik der Chemie und Physik (GDCP)
  start_date: '2014'
date_created: 2023-10-04T22:01:46Z
date_updated: 2023-10-04T22:01:53Z
ddc:
- '370'
department:
- _id: '300'
extern: '1'
language:
- iso: eng
status: public
title: MiLeNa – ein überregionales Programm zur MINT-Lehrernachwuchsförderung
type: conference
user_id: '77633'
year: '2015'
...
---
_id: '11874'
author:
- first_name: Manh Kha
  full_name: Hoang, Manh Kha
  last_name: Hoang
- first_name: Joerg
  full_name: Schmalenstroeer, Joerg
  id: '460'
  last_name: Schmalenstroeer
- first_name: Reinhold
  full_name: Haeb-Umbach, Reinhold
  id: '242'
  last_name: Haeb-Umbach
citation:
  ama: 'Hoang MK, Schmalenstroeer J, Haeb-Umbach R. Aligning training models with
    smartphone properties in WiFi fingerprinting based indoor localization. In: <i>40th
    International Conference on Acoustics, Speech and Signal Processing (ICASSP 2015)</i>.
    ; 2015.'
  apa: Hoang, M. K., Schmalenstroeer, J., &#38; Haeb-Umbach, R. (2015). Aligning training
    models with smartphone properties in WiFi fingerprinting based indoor localization.
    <i>40th International Conference on Acoustics, Speech and Signal Processing (ICASSP
    2015)</i>.
  bibtex: '@inproceedings{Hoang_Schmalenstroeer_Haeb-Umbach_2015, title={Aligning
    training models with smartphone properties in WiFi fingerprinting based indoor
    localization}, booktitle={40th International Conference on Acoustics, Speech and
    Signal Processing (ICASSP 2015)}, author={Hoang, Manh Kha and Schmalenstroeer,
    Joerg and Haeb-Umbach, Reinhold}, year={2015} }'
  chicago: Hoang, Manh Kha, Joerg Schmalenstroeer, and Reinhold Haeb-Umbach. “Aligning
    Training Models with Smartphone Properties in WiFi Fingerprinting Based Indoor
    Localization.” In <i>40th International Conference on Acoustics, Speech and Signal
    Processing (ICASSP 2015)</i>, 2015.
  ieee: M. K. Hoang, J. Schmalenstroeer, and R. Haeb-Umbach, “Aligning training models
    with smartphone properties in WiFi fingerprinting based indoor localization,”
    2015.
  mla: Hoang, Manh Kha, et al. “Aligning Training Models with Smartphone Properties
    in WiFi Fingerprinting Based Indoor Localization.” <i>40th International Conference
    on Acoustics, Speech and Signal Processing (ICASSP 2015)</i>, 2015.
  short: 'M.K. Hoang, J. Schmalenstroeer, R. Haeb-Umbach, in: 40th International Conference
    on Acoustics, Speech and Signal Processing (ICASSP 2015), 2015.'
date_created: 2019-07-12T05:29:55Z
date_updated: 2023-10-26T08:11:43Z
department:
- _id: '54'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://groups.uni-paderborn.de/nt/pubs/2015/HoSchHa2015.pdf
oa: '1'
publication: 40th International Conference on Acoustics, Speech and Signal Processing
  (ICASSP 2015)
quality_controlled: '1'
status: public
title: Aligning training models with smartphone properties in WiFi fingerprinting
  based indoor localization
type: conference
user_id: '460'
year: '2015'
...
---
_id: '46373'
abstract:
- lang: eng
  text: The need for automatic methods of topic discovery in the Internet grows exponentially
    with the amount of available textual information. Nowadays it becomes impossible
    to manually read even a small part of the information in order to reveal the underlying
    topics. Social media provide us with a great pool of user generated content, where
    topic discovery may be extremely useful for businesses, politicians, researchers,
    and other stakeholders. However, conventional topic discovery methods, which are
    widely used in large text corpora, face several challenges when they are applied
    in social media and particularly in Twitter – the most popular microblogging platform.
    To the best of our knowledge no comprehensive overview of these challenges and
    of the methods dedicated to address these challenges does exist in IS literature
    until now. Therefore, this paper provides an overview of these challenges, matching
    methods and their expected usefulness for social media analytics.
author:
- first_name: Andrey
  full_name: Chinnov, Andrey
  last_name: Chinnov
- first_name: Pascal
  full_name: Kerschke, Pascal
  last_name: Kerschke
- first_name: Christian
  full_name: Meske, Christian
  last_name: Meske
- first_name: Stefan
  full_name: Stieglitz, Stefan
  last_name: Stieglitz
- first_name: Heike
  full_name: Trautmann, Heike
  id: '100740'
  last_name: Trautmann
  orcid: 0000-0002-9788-8282
citation:
  ama: 'Chinnov A, Kerschke P, Meske C, Stieglitz S, Trautmann H. An Overview of Topic
    Discovery in Twitter Communication through Social Media Analytics. In: <i>Proceedings
    of the 20$^th$ Americas Conference on Information Systems (AMCIS ’15)</i>. ; 2015:1–10.'
  apa: Chinnov, A., Kerschke, P., Meske, C., Stieglitz, S., &#38; Trautmann, H. (2015).
    An Overview of Topic Discovery in Twitter Communication through Social Media Analytics.
    <i>Proceedings of the 20$^th$ Americas Conference on Information Systems (AMCIS
    ’15)</i>, 1–10.
  bibtex: '@inproceedings{Chinnov_Kerschke_Meske_Stieglitz_Trautmann_2015, place={Puerto
    Rico}, title={An Overview of Topic Discovery in Twitter Communication through
    Social Media Analytics}, booktitle={Proceedings of the 20$^th$ Americas Conference
    on Information Systems (AMCIS ’15)}, author={Chinnov, Andrey and Kerschke, Pascal
    and Meske, Christian and Stieglitz, Stefan and Trautmann, Heike}, year={2015},
    pages={1–10} }'
  chicago: Chinnov, Andrey, Pascal Kerschke, Christian Meske, Stefan Stieglitz, and
    Heike Trautmann. “An Overview of Topic Discovery in Twitter Communication through
    Social Media Analytics.” In <i>Proceedings of the 20$^th$ Americas Conference
    on Information Systems (AMCIS ’15)</i>, 1–10. Puerto Rico, 2015.
  ieee: A. Chinnov, P. Kerschke, C. Meske, S. Stieglitz, and H. Trautmann, “An Overview
    of Topic Discovery in Twitter Communication through Social Media Analytics,” in
    <i>Proceedings of the 20$^th$ Americas Conference on Information Systems (AMCIS
    ’15)</i>, 2015, pp. 1–10.
  mla: Chinnov, Andrey, et al. “An Overview of Topic Discovery in Twitter Communication
    through Social Media Analytics.” <i>Proceedings of the 20$^th$ Americas Conference
    on Information Systems (AMCIS ’15)</i>, 2015, pp. 1–10.
  short: 'A. Chinnov, P. Kerschke, C. Meske, S. Stieglitz, H. Trautmann, in: Proceedings
    of the 20$^th$ Americas Conference on Information Systems (AMCIS ’15), Puerto
    Rico, 2015, pp. 1–10.'
date_created: 2023-08-04T15:20:52Z
date_updated: 2023-10-16T13:41:00Z
department:
- _id: '34'
- _id: '819'
language:
- iso: eng
page: 1–10
place: Puerto Rico
publication: Proceedings of the 20$^th$ Americas Conference on Information Systems
  (AMCIS ’15)
publication_identifier:
  isbn:
  - 978-0-9966831-0-4
status: public
title: An Overview of Topic Discovery in Twitter Communication through Social Media
  Analytics
type: conference
user_id: '15504'
year: '2015'
...
---
_id: '46375'
abstract:
- lang: eng
  text: In single-objective optimization different optimization strategies exist depending
    on the structure and characteristics of the underlying problem. In particular,
    the presence of so-called funnels in multimodal problems offers the possibility
    of applying techniques exploiting the global structure of the function. The recently
    proposed Exploratory Landscape Analysis approach automatically identifies problem
    characteristics based on a moderately small initial sample of the objective function
    and proved to be effective for algorithm selection problems in continuous black-box
    optimization. In this paper, specific features for detecting funnel structures
    are introduced and combined with the existing ones in order to classify optimization
    problems regarding the funnel property. The effectiveness of the approach is shown
    by experiments on specifically generated test instances and validation experiments
    on standard benchmark problems.
author:
- first_name: Pascal
  full_name: Kerschke, Pascal
  last_name: Kerschke
- first_name: Mike
  full_name: Preuss, Mike
  last_name: Preuss
- first_name: Simon
  full_name: Wessing, Simon
  last_name: Wessing
- first_name: Heike
  full_name: Trautmann, Heike
  id: '100740'
  last_name: Trautmann
  orcid: 0000-0002-9788-8282
citation:
  ama: 'Kerschke P, Preuss M, Wessing S, Trautmann H. Detecting Funnel Structures
    by Means of Exploratory Landscape Analysis. In: Silva S, ed. <i>Proceedings of
    the Genetic and Evolutionary Computation Conference (GECCO ’15)</i>. ACM; 2015:265–272.
    doi:<a href="https://doi.org/10.1145/2739480.2754642">10.1145/2739480.2754642</a>'
  apa: Kerschke, P., Preuss, M., Wessing, S., &#38; Trautmann, H. (2015). Detecting
    Funnel Structures by Means of Exploratory Landscape Analysis. In S. Silva (Ed.),
    <i>Proceedings of the Genetic and Evolutionary Computation Conference (GECCO ’15)</i>
    (pp. 265–272). ACM. <a href="https://doi.org/10.1145/2739480.2754642">https://doi.org/10.1145/2739480.2754642</a>
  bibtex: '@inproceedings{Kerschke_Preuss_Wessing_Trautmann_2015, place={New York,
    NY, USA}, title={Detecting Funnel Structures by Means of Exploratory Landscape
    Analysis}, DOI={<a href="https://doi.org/10.1145/2739480.2754642">10.1145/2739480.2754642</a>},
    booktitle={Proceedings of the Genetic and Evolutionary Computation Conference
    (GECCO ’15)}, publisher={ACM}, author={Kerschke, Pascal and Preuss, Mike and Wessing,
    Simon and Trautmann, Heike}, editor={Silva, Sara}, year={2015}, pages={265–272}
    }'
  chicago: 'Kerschke, Pascal, Mike Preuss, Simon Wessing, and Heike Trautmann. “Detecting
    Funnel Structures by Means of Exploratory Landscape Analysis.” In <i>Proceedings
    of the Genetic and Evolutionary Computation Conference (GECCO ’15)</i>, edited
    by Sara Silva, 265–272. New York, NY, USA: ACM, 2015. <a href="https://doi.org/10.1145/2739480.2754642">https://doi.org/10.1145/2739480.2754642</a>.'
  ieee: 'P. Kerschke, M. Preuss, S. Wessing, and H. Trautmann, “Detecting Funnel Structures
    by Means of Exploratory Landscape Analysis,” in <i>Proceedings of the Genetic
    and Evolutionary Computation Conference (GECCO ’15)</i>, 2015, pp. 265–272, doi:
    <a href="https://doi.org/10.1145/2739480.2754642">10.1145/2739480.2754642</a>.'
  mla: Kerschke, Pascal, et al. “Detecting Funnel Structures by Means of Exploratory
    Landscape Analysis.” <i>Proceedings of the Genetic and Evolutionary Computation
    Conference (GECCO ’15)</i>, edited by Sara Silva, ACM, 2015, pp. 265–272, doi:<a
    href="https://doi.org/10.1145/2739480.2754642">10.1145/2739480.2754642</a>.
  short: 'P. Kerschke, M. Preuss, S. Wessing, H. Trautmann, in: S. Silva (Ed.), Proceedings
    of the Genetic and Evolutionary Computation Conference (GECCO ’15), ACM, New York,
    NY, USA, 2015, pp. 265–272.'
date_created: 2023-08-04T15:22:39Z
date_updated: 2023-10-16T13:41:38Z
department:
- _id: '34'
- _id: '819'
doi: 10.1145/2739480.2754642
editor:
- first_name: Sara
  full_name: Silva, Sara
  last_name: Silva
language:
- iso: eng
page: 265–272
place: New York, NY, USA
publication: Proceedings of the Genetic and Evolutionary Computation Conference (GECCO
  ’15)
publication_identifier:
  isbn:
  - 978-1-4503-3472-3
publisher: ACM
status: public
title: Detecting Funnel Structures by Means of Exploratory Landscape Analysis
type: conference
user_id: '15504'
year: '2015'
...
---
_id: '46376'
abstract:
- lang: eng
  text: We investigate per-instance algorithm selection techniques for solving the
    Travelling Salesman Problem (TSP), based on the two state-of-the-art inexact TSP
    solvers, LKH and EAX. Our comprehensive experiments demonstrate that the solvers
    exhibit complementary performance across a diverse set of instances, and the potential
    for improving the state of the art by selecting between them is significant. Using
    TSP features from the literature as well as a set of novel features, we show that
    we can capitalise on this potential by building an efficient selector that achieves
    significant performance improvements in practice. Our selectors represent a significant
    improvement in the state-of-the-art in inexact TSP solving, and hence in the ability
    to find optimal solutions (without proof of optimality) for challenging TSP instances
    in practice.
author:
- first_name: Lars
  full_name: Kotthoff, Lars
  last_name: Kotthoff
- first_name: Pascal
  full_name: Kerschke, Pascal
  last_name: Kerschke
- first_name: Holger
  full_name: Hoos, Holger
  last_name: Hoos
- first_name: Heike
  full_name: Trautmann, Heike
  id: '100740'
  last_name: Trautmann
  orcid: 0000-0002-9788-8282
citation:
  ama: 'Kotthoff L, Kerschke P, Hoos H, Trautmann H. Improving the State of the Art
    in Inexact TSP Solving Using Per-Instance Algorithm Selection. In: Dhaenens C,
    Jourdan L, Marmion M-E, eds. <i>Learning and Intelligent Optimization</i>. Springer
    International Publishing; 2015:202–217.'
  apa: Kotthoff, L., Kerschke, P., Hoos, H., &#38; Trautmann, H. (2015). Improving
    the State of the Art in Inexact TSP Solving Using Per-Instance Algorithm Selection.
    In C. Dhaenens, L. Jourdan, &#38; M.-E. Marmion (Eds.), <i>Learning and Intelligent
    Optimization</i> (pp. 202–217). Springer International Publishing.
  bibtex: '@inproceedings{Kotthoff_Kerschke_Hoos_Trautmann_2015, place={Cham}, title={Improving
    the State of the Art in Inexact TSP Solving Using Per-Instance Algorithm Selection},
    booktitle={Learning and Intelligent Optimization}, publisher={Springer International
    Publishing}, author={Kotthoff, Lars and Kerschke, Pascal and Hoos, Holger and
    Trautmann, Heike}, editor={Dhaenens, Clarisse and Jourdan, Laetitia and Marmion,
    Marie-Eléonore}, year={2015}, pages={202–217} }'
  chicago: 'Kotthoff, Lars, Pascal Kerschke, Holger Hoos, and Heike Trautmann. “Improving
    the State of the Art in Inexact TSP Solving Using Per-Instance Algorithm Selection.”
    In <i>Learning and Intelligent Optimization</i>, edited by Clarisse Dhaenens,
    Laetitia Jourdan, and Marie-Eléonore Marmion, 202–217. Cham: Springer International
    Publishing, 2015.'
  ieee: L. Kotthoff, P. Kerschke, H. Hoos, and H. Trautmann, “Improving the State
    of the Art in Inexact TSP Solving Using Per-Instance Algorithm Selection,” in
    <i>Learning and Intelligent Optimization</i>, 2015, pp. 202–217.
  mla: Kotthoff, Lars, et al. “Improving the State of the Art in Inexact TSP Solving
    Using Per-Instance Algorithm Selection.” <i>Learning and Intelligent Optimization</i>,
    edited by Clarisse Dhaenens et al., Springer International Publishing, 2015, pp.
    202–217.
  short: 'L. Kotthoff, P. Kerschke, H. Hoos, H. Trautmann, in: C. Dhaenens, L. Jourdan,
    M.-E. Marmion (Eds.), Learning and Intelligent Optimization, Springer International
    Publishing, Cham, 2015, pp. 202–217.'
date_created: 2023-08-04T15:24:20Z
date_updated: 2023-10-16T13:41:54Z
department:
- _id: '34'
- _id: '819'
editor:
- first_name: Clarisse
  full_name: Dhaenens, Clarisse
  last_name: Dhaenens
- first_name: Laetitia
  full_name: Jourdan, Laetitia
  last_name: Jourdan
- first_name: Marie-Eléonore
  full_name: Marmion, Marie-Eléonore
  last_name: Marmion
language:
- iso: eng
page: 202–217
place: Cham
publication: Learning and Intelligent Optimization
publication_identifier:
  isbn:
  - 978-3-319-19084-6
publisher: Springer International Publishing
status: public
title: Improving the State of the Art in Inexact TSP Solving Using Per-Instance Algorithm
  Selection
type: conference
user_id: '15504'
year: '2015'
...
---
_id: '46379'
abstract:
- lang: eng
  text: In multiobjective optimization, set-based performance indicators are commonly
    used to assess the quality of a Pareto front approximation. Based on the scalarization
    obtained by these indicators, a performance comparison of multiobjective optimization
    algorithms becomes possible. The R2 and the Hypervolume (HV) indicator represent
    two recommended approaches which have shown a correlated behavior in recent empirical
    studies. Whereas the HV indicator has been comprehensively analyzed in the last
    years, almost no studies on the R2 indicator exist. In this extended version of
    our previous conference paper, we thus perform a comprehensive investigation of
    the properties of the R2 indicator in a theoretical and empirical way. The influence
    of the number and distribution of the weight vectors on the optimal distribution
    of µ solutions is analyzed. Based on a comparative analysis, specific characteristics
    and differences of the R2 and HV indicator are presented. Furthermore, the R2
    indicator is integrated into an indicator-based steady-state evolutionary multiobjective
    optimization algorithm (EMOA). It is shown that the so-called R2-EMOA can accurately
    approximate the optimal distribution of µ solutions regarding R2.
author:
- first_name: D
  full_name: Brockhoff, D
  last_name: Brockhoff
- first_name: T
  full_name: Wagner, T
  last_name: Wagner
- first_name: Heike
  full_name: Trautmann, Heike
  id: '100740'
  last_name: Trautmann
  orcid: 0000-0002-9788-8282
citation:
  ama: Brockhoff D, Wagner T, Trautmann H. R2 Indicator Based Multiobjective Search.
    <i>Evolutionary Computation Journal</i>. 2015;23(3):369–395. doi:<a href="https://doi.org/10.1162/EVCO_a_00135">10.1162/EVCO_a_00135</a>
  apa: Brockhoff, D., Wagner, T., &#38; Trautmann, H. (2015). R2 Indicator Based Multiobjective
    Search. <i>Evolutionary Computation Journal</i>, <i>23</i>(3), 369–395. <a href="https://doi.org/10.1162/EVCO_a_00135">https://doi.org/10.1162/EVCO_a_00135</a>
  bibtex: '@article{Brockhoff_Wagner_Trautmann_2015, title={R2 Indicator Based Multiobjective
    Search}, volume={23}, DOI={<a href="https://doi.org/10.1162/EVCO_a_00135">10.1162/EVCO_a_00135</a>},
    number={3}, journal={Evolutionary Computation Journal}, author={Brockhoff, D and
    Wagner, T and Trautmann, Heike}, year={2015}, pages={369–395} }'
  chicago: 'Brockhoff, D, T Wagner, and Heike Trautmann. “R2 Indicator Based Multiobjective
    Search.” <i>Evolutionary Computation Journal</i> 23, no. 3 (2015): 369–395. <a
    href="https://doi.org/10.1162/EVCO_a_00135">https://doi.org/10.1162/EVCO_a_00135</a>.'
  ieee: 'D. Brockhoff, T. Wagner, and H. Trautmann, “R2 Indicator Based Multiobjective
    Search,” <i>Evolutionary Computation Journal</i>, vol. 23, no. 3, pp. 369–395,
    2015, doi: <a href="https://doi.org/10.1162/EVCO_a_00135">10.1162/EVCO_a_00135</a>.'
  mla: Brockhoff, D., et al. “R2 Indicator Based Multiobjective Search.” <i>Evolutionary
    Computation Journal</i>, vol. 23, no. 3, 2015, pp. 369–395, doi:<a href="https://doi.org/10.1162/EVCO_a_00135">10.1162/EVCO_a_00135</a>.
  short: D. Brockhoff, T. Wagner, H. Trautmann, Evolutionary Computation Journal 23
    (2015) 369–395.
date_created: 2023-08-04T15:28:25Z
date_updated: 2023-10-16T13:42:47Z
department:
- _id: '34'
- _id: '819'
doi: 10.1162/EVCO_a_00135
intvolume: '        23'
issue: '3'
language:
- iso: eng
page: 369–395
publication: Evolutionary Computation Journal
status: public
title: R2 Indicator Based Multiobjective Search
type: journal_article
user_id: '15504'
volume: 23
year: '2015'
...
---
_id: '46374'
abstract:
- lang: eng
  text: "We consider a routing problem for a single vehicle serving customer Locations
    in the course of time. A subset of these customers must necessarily be served,
    while the complement of this subset contains dynamic customers which request for
    service over time, and which do not necessarily need to be served. The decision
    maker’s conflicting goals are serving as many customers as possible as well as
    minimizing total travel distance. We solve this bi-objective Problem with an evolutionary
    multi-objective algorithm in order to provide an a-posteriori evaluation tool
    for enabling decision makers to assess the single objective solution strategies
    that they actually use in real-time. We present the modifications to be applied
    to the evolutionary multi-objective algorithm NSGA2 in order to solve the routing
    problem, we describe a number of real-time single-objective solution strategies,
    and we finally use the gained efficient trade-off solutions of NSGA2 to exemplarily
    evaluate the real-time strategies. Our results show that the evolutionary multi-objective
    approach is well-suited to generate benchmarks for assessing dynamic heuristic
    strategies. Our findings point into future directions for designing dynamic multi-objective
    approaches for the vehicle routing problem with time windows.\r\n"
author:
- first_name: C
  full_name: Grimme, C
  last_name: Grimme
- first_name: S
  full_name: Meisel, S
  last_name: Meisel
- first_name: Heike
  full_name: Trautmann, Heike
  id: '100740'
  last_name: Trautmann
  orcid: 0000-0002-9788-8282
- first_name: G
  full_name: Rudolph, G
  last_name: Rudolph
- first_name: M
  full_name: Wölck, M
  last_name: Wölck
citation:
  ama: 'Grimme C, Meisel S, Trautmann H, Rudolph G, Wölck M. Multi-Objective Analysis
    of Approaches to Dynamic Routing Of a Vehicle. In: <i>Proceedings of the European
    Conference On Information Systems</i>. ; 2015.'
  apa: Grimme, C., Meisel, S., Trautmann, H., Rudolph, G., &#38; Wölck, M. (2015).
    Multi-Objective Analysis of Approaches to Dynamic Routing Of a Vehicle. <i>Proceedings
    of the European Conference On Information Systems</i>.
  bibtex: '@inproceedings{Grimme_Meisel_Trautmann_Rudolph_Wölck_2015, place={Münster,
    Germany}, title={Multi-Objective Analysis of Approaches to Dynamic Routing Of
    a Vehicle}, booktitle={Proceedings of the European Conference On Information Systems},
    author={Grimme, C and Meisel, S and Trautmann, Heike and Rudolph, G and Wölck,
    M}, year={2015} }'
  chicago: Grimme, C, S Meisel, Heike Trautmann, G Rudolph, and M Wölck. “Multi-Objective
    Analysis of Approaches to Dynamic Routing Of a Vehicle.” In <i>Proceedings of
    the European Conference On Information Systems</i>. Münster, Germany, 2015.
  ieee: C. Grimme, S. Meisel, H. Trautmann, G. Rudolph, and M. Wölck, “Multi-Objective
    Analysis of Approaches to Dynamic Routing Of a Vehicle,” 2015.
  mla: Grimme, C., et al. “Multi-Objective Analysis of Approaches to Dynamic Routing
    Of a Vehicle.” <i>Proceedings of the European Conference On Information Systems</i>,
    2015.
  short: 'C. Grimme, S. Meisel, H. Trautmann, G. Rudolph, M. Wölck, in: Proceedings
    of the European Conference On Information Systems, Münster, Germany, 2015.'
date_created: 2023-08-04T15:21:44Z
date_updated: 2023-10-16T13:41:16Z
department:
- _id: '34'
- _id: '819'
language:
- iso: eng
place: Münster, Germany
publication: Proceedings of the European Conference On Information Systems
status: public
title: Multi-Objective Analysis of Approaches to Dynamic Routing Of a Vehicle
type: conference
user_id: '15504'
year: '2015'
...
