---
_id: '46316'
abstract:
- lang: eng
  text: ' Computational social science uses computational and statistical methods
    in order to evaluate social interaction. The public availability of data sets
    is thus a necessary precondition for reliable and replicable research. These data
    allow researchers to benchmark the computational methods they develop, test the
    generalizability of their findings, and build confidence in their results. When
    social media data are concerned, data sharing is often restricted for legal or
    privacy reasons, which makes the comparison of methods and the replicability of
    research results infeasible. Social media analytics research, consequently, faces
    an integrity crisis. How is it possible to create trust in computational or statistical
    analyses, when they cannot be validated by third parties? In this work, we explore
    this well-known, yet little discussed, problem for social media analytics. We
    investigate how this problem can be solved by looking at related computational
    research areas. Moreover, we propose and implement a prototype to address the
    problem in the form of a new evaluation framework that enables the comparison
    of algorithms without the need to exchange data directly, while maintaining flexibility
    for the algorithm design. '
author:
- first_name: Dennis
  full_name: Assenmacher, Dennis
  last_name: Assenmacher
- first_name: Derek
  full_name: Weber, Derek
  last_name: Weber
- first_name: Mike
  full_name: Preuss, Mike
  last_name: Preuss
- first_name: André Calero
  full_name: Valdez, André Calero
  last_name: Valdez
- first_name: Alison
  full_name: Bradshaw, Alison
  last_name: Bradshaw
- first_name: Björn
  full_name: Ross, Björn
  last_name: Ross
- first_name: Stefano
  full_name: Cresci, Stefano
  last_name: Cresci
- first_name: Heike
  full_name: Trautmann, Heike
  id: '100740'
  last_name: Trautmann
  orcid: 0000-0002-9788-8282
- first_name: Frank
  full_name: Neumann, Frank
  last_name: Neumann
- first_name: Christian
  full_name: Grimme, Christian
  last_name: Grimme
citation:
  ama: 'Assenmacher D, Weber D, Preuss M, et al. Benchmarking Crisis in Social Media
    Analytics: A Solution for the Data-Sharing Problem. <i>Social Science Computer
    Review</i>. 2022;40(6):1496-1522. doi:<a href="https://doi.org/10.1177/08944393211012268">10.1177/08944393211012268</a>'
  apa: 'Assenmacher, D., Weber, D., Preuss, M., Valdez, A. C., Bradshaw, A., Ross,
    B., Cresci, S., Trautmann, H., Neumann, F., &#38; Grimme, C. (2022). Benchmarking
    Crisis in Social Media Analytics: A Solution for the Data-Sharing Problem. <i>Social
    Science Computer Review</i>, <i>40</i>(6), 1496–1522. <a href="https://doi.org/10.1177/08944393211012268">https://doi.org/10.1177/08944393211012268</a>'
  bibtex: '@article{Assenmacher_Weber_Preuss_Valdez_Bradshaw_Ross_Cresci_Trautmann_Neumann_Grimme_2022,
    title={Benchmarking Crisis in Social Media Analytics: A Solution for the Data-Sharing
    Problem}, volume={40}, DOI={<a href="https://doi.org/10.1177/08944393211012268">10.1177/08944393211012268</a>},
    number={6}, journal={Social Science Computer Review}, author={Assenmacher, Dennis
    and Weber, Derek and Preuss, Mike and Valdez, André Calero and Bradshaw, Alison
    and Ross, Björn and Cresci, Stefano and Trautmann, Heike and Neumann, Frank and
    Grimme, Christian}, year={2022}, pages={1496–1522} }'
  chicago: 'Assenmacher, Dennis, Derek Weber, Mike Preuss, André Calero Valdez, Alison
    Bradshaw, Björn Ross, Stefano Cresci, Heike Trautmann, Frank Neumann, and Christian
    Grimme. “Benchmarking Crisis in Social Media Analytics: A Solution for the Data-Sharing
    Problem.” <i>Social Science Computer Review</i> 40, no. 6 (2022): 1496–1522. <a
    href="https://doi.org/10.1177/08944393211012268">https://doi.org/10.1177/08944393211012268</a>.'
  ieee: 'D. Assenmacher <i>et al.</i>, “Benchmarking Crisis in Social Media Analytics:
    A Solution for the Data-Sharing Problem,” <i>Social Science Computer Review</i>,
    vol. 40, no. 6, pp. 1496–1522, 2022, doi: <a href="https://doi.org/10.1177/08944393211012268">10.1177/08944393211012268</a>.'
  mla: 'Assenmacher, Dennis, et al. “Benchmarking Crisis in Social Media Analytics:
    A Solution for the Data-Sharing Problem.” <i>Social Science Computer Review</i>,
    vol. 40, no. 6, 2022, pp. 1496–522, doi:<a href="https://doi.org/10.1177/08944393211012268">10.1177/08944393211012268</a>.'
  short: D. Assenmacher, D. Weber, M. Preuss, A.C. Valdez, A. Bradshaw, B. Ross, S.
    Cresci, H. Trautmann, F. Neumann, C. Grimme, Social Science Computer Review 40
    (2022) 1496–1522.
date_created: 2023-08-04T07:26:36Z
date_updated: 2023-10-16T12:57:24Z
department:
- _id: '34'
- _id: '819'
doi: 10.1177/08944393211012268
intvolume: '        40'
issue: '6'
language:
- iso: eng
page: 1496-1522
publication: Social Science Computer Review
status: public
title: 'Benchmarking Crisis in Social Media Analytics: A Solution for the Data-Sharing
  Problem'
type: journal_article
user_id: '15504'
volume: 40
year: '2022'
...
---
_id: '34176'
abstract:
- lang: eng
  text: Cascaded H-bridge Converters (CHBs) are a promising solution in converting
    power from a three-phase medium voltage of 6.6 kV...30 kV to a lower DC-voltage
    in the range of 100 V...1 kV to provide pure DC power to applications such as
    electrolyzers for hydrogen generation, data centers with a DC power distribution
    and DC microgrids. CHBs can be interpreted as modular multilevel converters with
    an isolated DC-DC output stage per module, require a large DC-link capacitor for
    each module to handle the second harmonic voltage ripple caused by the fluctuating
    input power within a fundamental grid period. Without a zero-sequence voltage
    injection, star-connected CHBs are operated with approximately sinusoidal arm
    voltages and currents. The floating star point potential enables to utilize different
    zero-sequence voltage injection techniques such as a third-harmonic injection
    with 1/6 of the grid voltage amplitude or a Min-Max voltage injection. Both well-known
    methods have the advantage to reduce the peak arm voltage and thereby the number
    of required modules by 13.4 % (to √ 3 2). This paper proves analytically that
    the third-harmonic injection with 1/6 of the grid voltage amplitude reduces the
    second harmonic voltage ripple by only 15.1 % compared to no-voltage injection
    for unity power factor operation and balanced grid voltages. Then it is shown,
    that the Min-Max injection has the often overlooked advantage of reducing the
    second harmonic voltage ripple by even 18.8 %. By applying the here proposed zero-sequence
    voltage injection in saturation modulation, the second harmonic voltage ripple
    of the DC-link capacitors is reduced by even 24.3 %, while still requiring the
    same number of modules as the Min-Max injection. For a realistic number of reserve
    modules, the overall energy ripple in the DC-link capacitors is reduced by 40
    %.
author:
- first_name: Roland
  full_name: Unruh, Roland
  id: '34289'
  last_name: Unruh
- first_name: Frank
  full_name: Schafmeister, Frank
  id: '71291'
  last_name: Schafmeister
- first_name: Joachim
  full_name: Böcker, Joachim
  id: '66'
  last_name: Böcker
  orcid: 0000-0002-8480-7295
citation:
  ama: 'Unruh R, Schafmeister F, Böcker J. Zero-Sequence Voltage Reduces DC-Link Capacitor
    Demand in Cascaded H-Bridge Converters for Large-Scale Electrolyzers by 40%. In:
    <i>24th European Conference on Power Electronics and Applications (EPE’22 ECCE
    Europe)</i>. IEEE; 2022.'
  apa: Unruh, R., Schafmeister, F., &#38; Böcker, J. (2022). Zero-Sequence Voltage
    Reduces DC-Link Capacitor Demand in Cascaded H-Bridge Converters for Large-Scale
    Electrolyzers by 40%. <i>24th European Conference on Power Electronics and Applications
    (EPE’22 ECCE Europe)</i>. 24th European Conference on Power Electronics and Applications
    (EPE’22 ECCE Europe), Hanover, Germany.
  bibtex: '@inproceedings{Unruh_Schafmeister_Böcker_2022, title={Zero-Sequence Voltage
    Reduces DC-Link Capacitor Demand in Cascaded H-Bridge Converters for Large-Scale
    Electrolyzers by 40%}, booktitle={24th European Conference on Power Electronics
    and Applications (EPE’22 ECCE Europe)}, publisher={IEEE}, author={Unruh, Roland
    and Schafmeister, Frank and Böcker, Joachim}, year={2022} }'
  chicago: Unruh, Roland, Frank Schafmeister, and Joachim Böcker. “Zero-Sequence Voltage
    Reduces DC-Link Capacitor Demand in Cascaded H-Bridge Converters for Large-Scale
    Electrolyzers by 40%.” In <i>24th European Conference on Power Electronics and
    Applications (EPE’22 ECCE Europe)</i>. IEEE, 2022.
  ieee: R. Unruh, F. Schafmeister, and J. Böcker, “Zero-Sequence Voltage Reduces DC-Link
    Capacitor Demand in Cascaded H-Bridge Converters for Large-Scale Electrolyzers
    by 40%,” presented at the 24th European Conference on Power Electronics and Applications
    (EPE’22 ECCE Europe), Hanover, Germany, 2022.
  mla: Unruh, Roland, et al. “Zero-Sequence Voltage Reduces DC-Link Capacitor Demand
    in Cascaded H-Bridge Converters for Large-Scale Electrolyzers by 40%.” <i>24th
    European Conference on Power Electronics and Applications (EPE’22 ECCE Europe)</i>,
    IEEE, 2022.
  short: 'R. Unruh, F. Schafmeister, J. Böcker, in: 24th European Conference on Power
    Electronics and Applications (EPE’22 ECCE Europe), IEEE, 2022.'
conference:
  end_date: 2022-09-09
  location: Hanover, Germany
  name: 24th European Conference on Power Electronics and Applications (EPE'22 ECCE
    Europe)
  start_date: 2022-09-05
date_created: 2022-12-02T12:47:38Z
date_updated: 2023-10-23T09:04:23Z
department:
- _id: '52'
keyword:
- Cascaded H-Bridge
- Solid-State Transformer
- Zero sequence voltage
- Third harmonic injection
- Capacitor voltage ripple
language:
- iso: eng
main_file_link:
- url: https://ieeexplore.ieee.org/abstract/document/9907278
publication: 24th European Conference on Power Electronics and Applications (EPE'22
  ECCE Europe)
publication_identifier:
  isbn:
  - 978-9-0758-1539-9
publication_status: published
publisher: IEEE
status: public
title: Zero-Sequence Voltage Reduces DC-Link Capacitor Demand in Cascaded H-Bridge
  Converters for Large-Scale Electrolyzers by 40%
type: conference
user_id: '34289'
year: '2022'
...
---
_id: '33471'
abstract:
- lang: eng
  text: "The intelligibility of demodulated audio signals from analog high frequency
    transmissions, e.g., using single-sideband\r\n(SSB) modulation, can be severely
    degraded by channel distortions and/or a mismatch between modulation and demodulation
    carrier frequency. In this work a neural network (NN)-based approach for carrier
    frequency offset (CFO) estimation from demodulated SSB signals is proposed, whereby
    a task specific architecture is presented. Additionally, a simulation framework
    for SSB signals is introduced and utilized for training the NNs. The CFO estimator
    is combined with a speech enhancement network to investigate its influence on
    the enhancement performance. The NN-based system is compared to a recently proposed
    pitch tracking based approach on publicly available data from real high frequency
    transmissions. Experiments show that the NN exhibits good CFO estimation properties
    and results in significant improvements in speech intelligibility, especially
    when combined with a noise reduction network."
author:
- first_name: Jens
  full_name: Heitkämper, Jens
  id: '27643'
  last_name: Heitkämper
- 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: 'Heitkämper J, Schmalenstroeer J, Haeb-Umbach R. Neural Network Based Carrier
    Frequency Offset Estimation From Speech Transmitted Over High Frequency Channels.
    In: <i>Proceedings of the 30th European Signal Processing Conference (EUSIPCO)</i>.'
  apa: Heitkämper, J., Schmalenstroeer, J., &#38; Haeb-Umbach, R. (n.d.). Neural Network
    Based Carrier Frequency Offset Estimation From Speech Transmitted Over High Frequency
    Channels. <i>Proceedings of the 30th European Signal Processing Conference (EUSIPCO)</i>.
    30th European Signal Processing Conference (EUSIPCO), Belgrad.
  bibtex: '@inproceedings{Heitkämper_Schmalenstroeer_Haeb-Umbach, place={Belgrad},
    title={Neural Network Based Carrier Frequency Offset Estimation From Speech Transmitted
    Over High Frequency Channels}, booktitle={Proceedings of the 30th European Signal
    Processing Conference (EUSIPCO)}, author={Heitkämper, Jens and Schmalenstroeer,
    Joerg and Haeb-Umbach, Reinhold} }'
  chicago: Heitkämper, Jens, Joerg Schmalenstroeer, and Reinhold Haeb-Umbach. “Neural
    Network Based Carrier Frequency Offset Estimation From Speech Transmitted Over
    High Frequency Channels.” In <i>Proceedings of the 30th European Signal Processing
    Conference (EUSIPCO)</i>. Belgrad, n.d.
  ieee: J. Heitkämper, J. Schmalenstroeer, and R. Haeb-Umbach, “Neural Network Based
    Carrier Frequency Offset Estimation From Speech Transmitted Over High Frequency
    Channels,” presented at the 30th European Signal Processing Conference (EUSIPCO),
    Belgrad.
  mla: Heitkämper, Jens, et al. “Neural Network Based Carrier Frequency Offset Estimation
    From Speech Transmitted Over High Frequency Channels.” <i>Proceedings of the 30th
    European Signal Processing Conference (EUSIPCO)</i>.
  short: 'J. Heitkämper, J. Schmalenstroeer, R. Haeb-Umbach, in: Proceedings of the
    30th European Signal Processing Conference (EUSIPCO), Belgrad, n.d.'
conference:
  end_date: 2022-09-02
  location: Belgrad
  name: 30th European Signal Processing Conference (EUSIPCO)
  start_date: 2022-08-29
date_created: 2022-09-22T10:56:13Z
date_updated: 2023-10-26T08:15:57Z
ddc:
- '000'
department:
- _id: '54'
file:
- access_level: closed
  content_type: application/pdf
  creator: jensheit
  date_created: 2022-09-22T10:48:31Z
  date_updated: 2022-09-22T10:48:31Z
  file_id: '33472'
  file_name: cfo.pdf
  file_size: 1231379
  relation: main_file
  success: 1
file_date_updated: 2022-09-22T10:48:31Z
has_accepted_license: '1'
language:
- iso: eng
place: Belgrad
project:
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Proceedings of the 30th European Signal Processing Conference (EUSIPCO)
publication_status: accepted
quality_controlled: '1'
status: public
title: Neural Network Based Carrier Frequency Offset Estimation From Speech Transmitted
  Over High Frequency Channels
type: conference
user_id: '460'
year: '2022'
...
---
_id: '33806'
author:
- first_name: Haitham
  full_name: Afifi, Haitham
  last_name: Afifi
- first_name: Holger
  full_name: Karl, Holger
  last_name: Karl
- first_name: Tobias
  full_name: Gburrek, Tobias
  id: '44006'
  last_name: Gburrek
- first_name: Joerg
  full_name: Schmalenstroeer, Joerg
  id: '460'
  last_name: Schmalenstroeer
citation:
  ama: 'Afifi H, Karl H, Gburrek T, Schmalenstroeer J. Data-driven Time Synchronization
    in Wireless Multimedia Networks. In: <i>2022 International Wireless Communications
    and Mobile Computing (IWCMC)</i>. IEEE; 2022. doi:<a href="https://doi.org/10.1109/iwcmc55113.2022.9824980">10.1109/iwcmc55113.2022.9824980</a>'
  apa: Afifi, H., Karl, H., Gburrek, T., &#38; Schmalenstroeer, J. (2022). Data-driven
    Time Synchronization in Wireless Multimedia Networks. <i>2022 International Wireless
    Communications and Mobile Computing (IWCMC)</i>. <a href="https://doi.org/10.1109/iwcmc55113.2022.9824980">https://doi.org/10.1109/iwcmc55113.2022.9824980</a>
  bibtex: '@inproceedings{Afifi_Karl_Gburrek_Schmalenstroeer_2022, title={Data-driven
    Time Synchronization in Wireless Multimedia Networks}, DOI={<a href="https://doi.org/10.1109/iwcmc55113.2022.9824980">10.1109/iwcmc55113.2022.9824980</a>},
    booktitle={2022 International Wireless Communications and Mobile Computing (IWCMC)},
    publisher={IEEE}, author={Afifi, Haitham and Karl, Holger and Gburrek, Tobias
    and Schmalenstroeer, Joerg}, year={2022} }'
  chicago: Afifi, Haitham, Holger Karl, Tobias Gburrek, and Joerg Schmalenstroeer.
    “Data-Driven Time Synchronization in Wireless Multimedia Networks.” In <i>2022
    International Wireless Communications and Mobile Computing (IWCMC)</i>. IEEE,
    2022. <a href="https://doi.org/10.1109/iwcmc55113.2022.9824980">https://doi.org/10.1109/iwcmc55113.2022.9824980</a>.
  ieee: 'H. Afifi, H. Karl, T. Gburrek, and J. Schmalenstroeer, “Data-driven Time
    Synchronization in Wireless Multimedia Networks,” 2022, doi: <a href="https://doi.org/10.1109/iwcmc55113.2022.9824980">10.1109/iwcmc55113.2022.9824980</a>.'
  mla: Afifi, Haitham, et al. “Data-Driven Time Synchronization in Wireless Multimedia
    Networks.” <i>2022 International Wireless Communications and Mobile Computing
    (IWCMC)</i>, IEEE, 2022, doi:<a href="https://doi.org/10.1109/iwcmc55113.2022.9824980">10.1109/iwcmc55113.2022.9824980</a>.
  short: 'H. Afifi, H. Karl, T. Gburrek, J. Schmalenstroeer, in: 2022 International
    Wireless Communications and Mobile Computing (IWCMC), IEEE, 2022.'
date_created: 2022-10-18T09:24:17Z
date_updated: 2023-10-26T08:16:07Z
department:
- _id: '54'
doi: 10.1109/iwcmc55113.2022.9824980
language:
- iso: eng
publication: 2022 International Wireless Communications and Mobile Computing (IWCMC)
publication_status: published
publisher: IEEE
quality_controlled: '1'
status: public
title: Data-driven Time Synchronization in Wireless Multimedia Networks
type: conference
user_id: '460'
year: '2022'
...
---
_id: '45373'
author:
- first_name: Jennifer
  full_name: Dröse, Jennifer
  id: '85820'
  last_name: Dröse
- first_name: P.
  full_name: Neugebauer, P.
  last_name: Neugebauer
- first_name: R.
  full_name: Delucchi Danhier, R.
  last_name: Delucchi Danhier
- first_name: B.
  full_name: Mertins, B.
  last_name: Mertins
citation:
  ama: 'Dröse J, Neugebauer P, Delucchi Danhier R, Mertins B. Eye-Tracking Studie
    zu Textaufgaben in Klasse 5: Bemerken und Interpretieren syntaktischer Strukturen.
    In: Kleine P, Graulich N, Kuhn J, Schindler M, eds. <i>Eye-Tracking in der Mathematik-
    und Naturwissenschaftsdidaktik. Forschung und Praxis</i>. ; 2022:209-225. doi:<a
    href="https://doi.org/10.1007/978-3-662-63214-7">https://doi.org/10.1007/978-3-662-63214-7</a>'
  apa: 'Dröse, J., Neugebauer, P., Delucchi Danhier, R., &#38; Mertins, B. (2022).
    Eye-Tracking Studie zu Textaufgaben in Klasse 5: Bemerken und Interpretieren syntaktischer
    Strukturen. In P. Kleine, N. Graulich, J. Kuhn, &#38; M. Schindler (Eds.), <i>Eye-Tracking
    in der Mathematik- und Naturwissenschaftsdidaktik. Forschung und Praxis</i> (pp.
    209–225). <a href="https://doi.org/10.1007/978-3-662-63214-7">https://doi.org/10.1007/978-3-662-63214-7</a>'
  bibtex: '@inbook{Dröse_Neugebauer_Delucchi Danhier_Mertins_2022, title={Eye-Tracking
    Studie zu Textaufgaben in Klasse 5: Bemerken und Interpretieren syntaktischer
    Strukturen}, DOI={<a href="https://doi.org/10.1007/978-3-662-63214-7">https://doi.org/10.1007/978-3-662-63214-7</a>},
    booktitle={Eye-Tracking in der Mathematik- und Naturwissenschaftsdidaktik. Forschung
    und Praxis}, author={Dröse, Jennifer and Neugebauer, P. and Delucchi Danhier,
    R. and Mertins, B.}, editor={Kleine, P. and Graulich, N. and Kuhn, J. and Schindler,
    M.}, year={2022}, pages={209–225} }'
  chicago: 'Dröse, Jennifer, P. Neugebauer, R. Delucchi Danhier, and B. Mertins. “Eye-Tracking
    Studie zu Textaufgaben in Klasse 5: Bemerken und Interpretieren syntaktischer
    Strukturen.” In <i>Eye-Tracking in der Mathematik- und Naturwissenschaftsdidaktik.
    Forschung und Praxis</i>, edited by P. Kleine, N. Graulich, J. Kuhn, and M. Schindler,
    209–25, 2022. <a href="https://doi.org/10.1007/978-3-662-63214-7">https://doi.org/10.1007/978-3-662-63214-7</a>.'
  ieee: 'J. Dröse, P. Neugebauer, R. Delucchi Danhier, and B. Mertins, “Eye-Tracking
    Studie zu Textaufgaben in Klasse 5: Bemerken und Interpretieren syntaktischer
    Strukturen,” in <i>Eye-Tracking in der Mathematik- und Naturwissenschaftsdidaktik.
    Forschung und Praxis</i>, P. Kleine, N. Graulich, J. Kuhn, and M. Schindler, Eds.
    2022, pp. 209–225.'
  mla: 'Dröse, Jennifer, et al. “Eye-Tracking Studie zu Textaufgaben in Klasse 5:
    Bemerken und Interpretieren syntaktischer Strukturen.” <i>Eye-Tracking in der
    Mathematik- und Naturwissenschaftsdidaktik. Forschung und Praxis</i>, edited by
    P. Kleine et al., 2022, pp. 209–25, doi:<a href="https://doi.org/10.1007/978-3-662-63214-7">https://doi.org/10.1007/978-3-662-63214-7</a>.'
  short: 'J. Dröse, P. Neugebauer, R. Delucchi Danhier, B. Mertins, in: P. Kleine,
    N. Graulich, J. Kuhn, M. Schindler (Eds.), Eye-Tracking in der Mathematik- und
    Naturwissenschaftsdidaktik. Forschung und Praxis, 2022, pp. 209–225.'
date_created: 2023-05-31T06:22:21Z
date_updated: 2023-11-02T08:07:31Z
department:
- _id: '98'
doi: https://doi.org/10.1007/978-3-662-63214-7
editor:
- first_name: P.
  full_name: Kleine, P.
  last_name: Kleine
- first_name: N.
  full_name: Graulich, N.
  last_name: Graulich
- first_name: J.
  full_name: Kuhn, J.
  last_name: Kuhn
- first_name: M.
  full_name: Schindler, M.
  last_name: Schindler
language:
- iso: ger
page: 209-225
publication: Eye-Tracking in der Mathematik- und Naturwissenschaftsdidaktik. Forschung
  und Praxis
quality_controlled: '1'
status: public
title: 'Eye-Tracking Studie zu Textaufgaben in Klasse 5: Bemerken und Interpretieren
  syntaktischer Strukturen'
type: book_chapter
user_id: '85820'
year: '2022'
...
---
_id: '33847'
abstract:
- lang: eng
  text: "The scope of speech enhancement has changed from a monolithic view of single,\r\nindependent
    tasks, to a joint processing of complex conversational speech\r\nrecordings. Training
    and evaluation of these single tasks requires synthetic\r\ndata with access to
    intermediate signals that is as close as possible to the\r\nevaluation scenario.
    As such data often is not available, many works instead\r\nuse specialized databases
    for the training of each system component, e.g\r\nWSJ0-mix for source separation.
    We present a Multi-purpose Multi-Speaker\r\nMixture Signal Generator (MMS-MSG)
    for generating a variety of speech mixture\r\nsignals based on any speech corpus,
    ranging from classical anechoic mixtures\r\n(e.g., WSJ0-mix) over reverberant
    mixtures (e.g., SMS-WSJ) to meeting-style\r\ndata. Its highly modular and flexible
    structure allows for the simulation of\r\ndiverse environments and dynamic mixing,
    while simultaneously enabling an easy\r\nextension and modification to generate
    new scenarios and mixture types. These\r\nmeetings can be used for prototyping,
    evaluation, or training purposes. We\r\nprovide example evaluation data and baseline
    results for meetings based on the\r\nWSJ corpus. Further, we demonstrate the usefulness
    for realistic scenarios by\r\nusing MMS-MSG to provide training data for the LibriCSS
    database."
author:
- first_name: Tobias
  full_name: Cord-Landwehr, Tobias
  id: '44393'
  last_name: Cord-Landwehr
- first_name: Thilo
  full_name: von Neumann, Thilo
  id: '49870'
  last_name: von Neumann
  orcid: https://orcid.org/0000-0002-7717-8670
- first_name: Christoph
  full_name: Boeddeker, Christoph
  id: '40767'
  last_name: Boeddeker
- first_name: Reinhold
  full_name: Haeb-Umbach, Reinhold
  id: '242'
  last_name: Haeb-Umbach
citation:
  ama: 'Cord-Landwehr T, von Neumann T, Boeddeker C, Haeb-Umbach R. MMS-MSG: A Multi-purpose
    Multi-Speaker Mixture Signal Generator. In: <i>2022 International Workshop on
    Acoustic Signal Enhancement (IWAENC)</i>. ; 2022.'
  apa: 'Cord-Landwehr, T., von Neumann, T., Boeddeker, C., &#38; Haeb-Umbach, R. (2022).
    MMS-MSG: A Multi-purpose Multi-Speaker Mixture Signal Generator. <i>2022 International
    Workshop on Acoustic Signal Enhancement (IWAENC)</i>. 2022 International Workshop
    on Acoustic Signal Enhancement (IWAENC), Bamberg.'
  bibtex: '@inproceedings{Cord-Landwehr_von Neumann_Boeddeker_Haeb-Umbach_2022, title={MMS-MSG:
    A Multi-purpose Multi-Speaker Mixture Signal Generator}, booktitle={2022 International
    Workshop on Acoustic Signal Enhancement (IWAENC)}, author={Cord-Landwehr, Tobias
    and von Neumann, Thilo and Boeddeker, Christoph and Haeb-Umbach, Reinhold}, year={2022}
    }'
  chicago: 'Cord-Landwehr, Tobias, Thilo von Neumann, Christoph Boeddeker, and Reinhold
    Haeb-Umbach. “MMS-MSG: A Multi-Purpose Multi-Speaker Mixture Signal Generator.”
    In <i>2022 International Workshop on Acoustic Signal Enhancement (IWAENC)</i>,
    2022.'
  ieee: 'T. Cord-Landwehr, T. von Neumann, C. Boeddeker, and R. Haeb-Umbach, “MMS-MSG:
    A Multi-purpose Multi-Speaker Mixture Signal Generator,” presented at the 2022
    International Workshop on Acoustic Signal Enhancement (IWAENC), Bamberg, 2022.'
  mla: 'Cord-Landwehr, Tobias, et al. “MMS-MSG: A Multi-Purpose Multi-Speaker Mixture
    Signal Generator.” <i>2022 International Workshop on Acoustic Signal Enhancement
    (IWAENC)</i>, 2022.'
  short: 'T. Cord-Landwehr, T. von Neumann, C. Boeddeker, R. Haeb-Umbach, in: 2022
    International Workshop on Acoustic Signal Enhancement (IWAENC), 2022.'
conference:
  location: Bamberg
  name: 2022 International Workshop on Acoustic Signal Enhancement (IWAENC)
date_created: 2022-10-20T14:02:14Z
date_updated: 2023-11-15T14:55:14Z
ddc:
- '000'
department:
- _id: '54'
external_id:
  arxiv:
  - '2209.11494'
file:
- access_level: open_access
  content_type: application/pdf
  creator: cord
  date_created: 2023-11-15T14:54:56Z
  date_updated: 2023-11-15T14:54:56Z
  file_id: '48931'
  file_name: mms_msg_camera_ready.pdf
  file_size: 177975
  relation: main_file
file_date_updated: 2023-11-15T14:54:56Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
project:
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: 2022 International Workshop on Acoustic Signal Enhancement (IWAENC)
quality_controlled: '1'
status: public
title: 'MMS-MSG: A Multi-purpose Multi-Speaker Mixture Signal Generator'
type: conference
user_id: '44393'
year: '2022'
...
---
_id: '33807'
author:
- first_name: Tobias
  full_name: Gburrek, Tobias
  id: '44006'
  last_name: Gburrek
- 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: 'Gburrek T, Schmalenstroeer J, Haeb-Umbach R. On Synchronization of Wireless
    Acoustic Sensor Networks in the Presence of Time-Varying Sampling Rate Offsets
    and Speaker Changes. In: <i>ICASSP 2022 - 2022 IEEE International Conference on
    Acoustics, Speech and Signal Processing (ICASSP)</i>. IEEE; 2022. doi:<a href="https://doi.org/10.1109/icassp43922.2022.9746284">10.1109/icassp43922.2022.9746284</a>'
  apa: Gburrek, T., Schmalenstroeer, J., &#38; Haeb-Umbach, R. (2022). On Synchronization
    of Wireless Acoustic Sensor Networks in the Presence of Time-Varying Sampling
    Rate Offsets and Speaker Changes. <i>ICASSP 2022 - 2022 IEEE International Conference
    on Acoustics, Speech and Signal Processing (ICASSP)</i>. <a href="https://doi.org/10.1109/icassp43922.2022.9746284">https://doi.org/10.1109/icassp43922.2022.9746284</a>
  bibtex: '@inproceedings{Gburrek_Schmalenstroeer_Haeb-Umbach_2022, title={On Synchronization
    of Wireless Acoustic Sensor Networks in the Presence of Time-Varying Sampling
    Rate Offsets and Speaker Changes}, DOI={<a href="https://doi.org/10.1109/icassp43922.2022.9746284">10.1109/icassp43922.2022.9746284</a>},
    booktitle={ICASSP 2022 - 2022 IEEE International Conference on Acoustics, Speech
    and Signal Processing (ICASSP)}, publisher={IEEE}, author={Gburrek, Tobias and
    Schmalenstroeer, Joerg and Haeb-Umbach, Reinhold}, year={2022} }'
  chicago: Gburrek, Tobias, Joerg Schmalenstroeer, and Reinhold Haeb-Umbach. “On Synchronization
    of Wireless Acoustic Sensor Networks in the Presence of Time-Varying Sampling
    Rate Offsets and Speaker Changes.” In <i>ICASSP 2022 - 2022 IEEE International
    Conference on Acoustics, Speech and Signal Processing (ICASSP)</i>. IEEE, 2022.
    <a href="https://doi.org/10.1109/icassp43922.2022.9746284">https://doi.org/10.1109/icassp43922.2022.9746284</a>.
  ieee: 'T. Gburrek, J. Schmalenstroeer, and R. Haeb-Umbach, “On Synchronization of
    Wireless Acoustic Sensor Networks in the Presence of Time-Varying Sampling Rate
    Offsets and Speaker Changes,” 2022, doi: <a href="https://doi.org/10.1109/icassp43922.2022.9746284">10.1109/icassp43922.2022.9746284</a>.'
  mla: Gburrek, Tobias, et al. “On Synchronization of Wireless Acoustic Sensor Networks
    in the Presence of Time-Varying Sampling Rate Offsets and Speaker Changes.” <i>ICASSP
    2022 - 2022 IEEE International Conference on Acoustics, Speech and Signal Processing
    (ICASSP)</i>, IEEE, 2022, doi:<a href="https://doi.org/10.1109/icassp43922.2022.9746284">10.1109/icassp43922.2022.9746284</a>.
  short: 'T. Gburrek, J. Schmalenstroeer, R. Haeb-Umbach, in: ICASSP 2022 - 2022 IEEE
    International Conference on Acoustics, Speech and Signal Processing (ICASSP),
    IEEE, 2022.'
date_created: 2022-10-18T09:25:51Z
date_updated: 2023-11-17T06:39:28Z
ddc:
- '004'
department:
- _id: '54'
doi: 10.1109/icassp43922.2022.9746284
file:
- access_level: open_access
  content_type: application/pdf
  creator: tgburrek
  date_created: 2023-11-17T06:39:04Z
  date_updated: 2023-11-17T06:39:04Z
  file_id: '48990'
  file_name: gburrek_icassp22.pdf
  file_size: 358015
  relation: main_file
file_date_updated: 2023-11-17T06:39:04Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
publication: ICASSP 2022 - 2022 IEEE International Conference on Acoustics, Speech
  and Signal Processing (ICASSP)
publication_status: published
publisher: IEEE
quality_controlled: '1'
status: public
title: On Synchronization of Wireless Acoustic Sensor Networks in the Presence of
  Time-Varying Sampling Rate Offsets and Speaker Changes
type: conference
user_id: '44006'
year: '2022'
...
---
_id: '33451'
abstract:
- lang: eng
  text: "We present an approach to automatically generate semantic labels for real
    recordings of automotive range-Doppler (RD) radar spectra. Such labels are required
    when training a neural network for object recognition from radar data. The automatic
    labeling approach rests on the simultaneous recording of camera and lidar data
    in addition to the radar spectrum. By warping radar spectra into the camera image,
    state-of-the-art object recognition algorithms can be applied to label relevant
    objects, such as cars, in the camera image. The warping operation is designed
    to be fully differentiable, which allows backpropagating the gradient computed
    on the camera image through the warping operation to the neural network operating
    on the radar data. As the warping operation relies on accurate scene flow estimation,
    we further propose a novel scene flow estimation algorithm which exploits information
    from camera, lidar and radar sensors. The\r\nproposed scene flow estimation approach
    is compared against a state-of-the-art scene flow algorithm, and it outperforms
    it by approximately 30% w.r.t. mean average error. The feasibility of the overall
    framework for automatic label generation for\r\nRD spectra is verified by evaluating
    the performance of neural networks trained with the proposed framework for Direction-of-Arrival
    estimation."
author:
- first_name: Christopher
  full_name: Grimm, Christopher
  last_name: Grimm
- first_name: Tai
  full_name: Fei, Tai
  last_name: Fei
- first_name: Ernst
  full_name: Warsitz, Ernst
  last_name: Warsitz
- first_name: Ridha
  full_name: Farhoud, Ridha
  last_name: Farhoud
- first_name: Tobias
  full_name: Breddermann, Tobias
  last_name: Breddermann
- first_name: Reinhold
  full_name: Haeb-Umbach, Reinhold
  id: '242'
  last_name: Haeb-Umbach
citation:
  ama: Grimm C, Fei T, Warsitz E, Farhoud R, Breddermann T, Haeb-Umbach R. Warping
    of Radar Data Into Camera Image for Cross-Modal Supervision in Automotive Applications.
    <i>IEEE Transactions on Vehicular Technology</i>. 2022;71(9):9435-9449. doi:<a
    href="https://doi.org/10.1109/TVT.2022.3182411">10.1109/TVT.2022.3182411</a>
  apa: Grimm, C., Fei, T., Warsitz, E., Farhoud, R., Breddermann, T., &#38; Haeb-Umbach,
    R. (2022). Warping of Radar Data Into Camera Image for Cross-Modal Supervision
    in Automotive Applications. <i>IEEE Transactions on Vehicular Technology</i>,
    <i>71</i>(9), 9435–9449. <a href="https://doi.org/10.1109/TVT.2022.3182411">https://doi.org/10.1109/TVT.2022.3182411</a>
  bibtex: '@article{Grimm_Fei_Warsitz_Farhoud_Breddermann_Haeb-Umbach_2022, title={Warping
    of Radar Data Into Camera Image for Cross-Modal Supervision in Automotive Applications},
    volume={71}, DOI={<a href="https://doi.org/10.1109/TVT.2022.3182411">10.1109/TVT.2022.3182411</a>},
    number={9}, journal={IEEE Transactions on Vehicular Technology}, author={Grimm,
    Christopher and Fei, Tai and Warsitz, Ernst and Farhoud, Ridha and Breddermann,
    Tobias and Haeb-Umbach, Reinhold}, year={2022}, pages={9435–9449} }'
  chicago: 'Grimm, Christopher, Tai Fei, Ernst Warsitz, Ridha Farhoud, Tobias Breddermann,
    and Reinhold Haeb-Umbach. “Warping of Radar Data Into Camera Image for Cross-Modal
    Supervision in Automotive Applications.” <i>IEEE Transactions on Vehicular Technology</i>
    71, no. 9 (2022): 9435–49. <a href="https://doi.org/10.1109/TVT.2022.3182411">https://doi.org/10.1109/TVT.2022.3182411</a>.'
  ieee: 'C. Grimm, T. Fei, E. Warsitz, R. Farhoud, T. Breddermann, and R. Haeb-Umbach,
    “Warping of Radar Data Into Camera Image for Cross-Modal Supervision in Automotive
    Applications,” <i>IEEE Transactions on Vehicular Technology</i>, vol. 71, no.
    9, pp. 9435–9449, 2022, doi: <a href="https://doi.org/10.1109/TVT.2022.3182411">10.1109/TVT.2022.3182411</a>.'
  mla: Grimm, Christopher, et al. “Warping of Radar Data Into Camera Image for Cross-Modal
    Supervision in Automotive Applications.” <i>IEEE Transactions on Vehicular Technology</i>,
    vol. 71, no. 9, 2022, pp. 9435–49, doi:<a href="https://doi.org/10.1109/TVT.2022.3182411">10.1109/TVT.2022.3182411</a>.
  short: C. Grimm, T. Fei, E. Warsitz, R. Farhoud, T. Breddermann, R. Haeb-Umbach,
    IEEE Transactions on Vehicular Technology 71 (2022) 9435–9449.
date_created: 2022-09-21T07:26:19Z
date_updated: 2023-11-20T16:37:16Z
ddc:
- '000'
department:
- _id: '54'
doi: 10.1109/TVT.2022.3182411
file:
- access_level: open_access
  content_type: application/pdf
  creator: huesera
  date_created: 2022-09-22T07:00:29Z
  date_updated: 2022-09-22T07:00:29Z
  file_id: '33460'
  file_name: T-VT_AcceptedVersion.pdf
  file_size: 12117870
  relation: main_file
file_date_updated: 2022-09-22T07:00:29Z
has_accepted_license: '1'
intvolume: '        71'
issue: '9'
language:
- iso: eng
oa: '1'
page: 9435-9449
publication: IEEE Transactions on Vehicular Technology
quality_controlled: '1'
status: public
title: Warping of Radar Data Into Camera Image for Cross-Modal Supervision in Automotive
  Applications
type: journal_article
user_id: '242'
volume: 71
year: '2022'
...
---
_id: '33696'
author:
- first_name: Jana
  full_name: Wiechmann, Jana
  last_name: Wiechmann
- first_name: Thomas
  full_name: Glarner, Thomas
  last_name: Glarner
- first_name: Frederik
  full_name: Rautenberg, Frederik
  id: '72602'
  last_name: Rautenberg
- first_name: Petra
  full_name: Wagner, Petra
  last_name: Wagner
- first_name: Reinhold
  full_name: Haeb-Umbach, Reinhold
  id: '242'
  last_name: Haeb-Umbach
citation:
  ama: 'Wiechmann J, Glarner T, Rautenberg F, Wagner P, Haeb-Umbach R. Technically
    enabled explaining of voice characteristics. In: <i>18. Phonetik Und Phonologie
    Im Deutschsprachigen Raum (P&#38;P)</i>. ; 2022.'
  apa: Wiechmann, J., Glarner, T., Rautenberg, F., Wagner, P., &#38; Haeb-Umbach,
    R. (2022). Technically enabled explaining of voice characteristics. <i>18. Phonetik
    Und Phonologie Im Deutschsprachigen Raum (P&#38;P)</i>.
  bibtex: '@inproceedings{Wiechmann_Glarner_Rautenberg_Wagner_Haeb-Umbach_2022, title={Technically
    enabled explaining of voice characteristics}, booktitle={18. Phonetik und Phonologie
    im deutschsprachigen Raum (P&#38;P)}, author={Wiechmann, Jana and Glarner, Thomas
    and Rautenberg, Frederik and Wagner, Petra and Haeb-Umbach, Reinhold}, year={2022}
    }'
  chicago: Wiechmann, Jana, Thomas Glarner, Frederik Rautenberg, Petra Wagner, and
    Reinhold Haeb-Umbach. “Technically Enabled Explaining of Voice Characteristics.”
    In <i>18. Phonetik Und Phonologie Im Deutschsprachigen Raum (P&#38;P)</i>, 2022.
  ieee: J. Wiechmann, T. Glarner, F. Rautenberg, P. Wagner, and R. Haeb-Umbach, “Technically
    enabled explaining of voice characteristics,” Bielefeld, 2022.
  mla: Wiechmann, Jana, et al. “Technically Enabled Explaining of Voice Characteristics.”
    <i>18. Phonetik Und Phonologie Im Deutschsprachigen Raum (P&#38;P)</i>, 2022.
  short: 'J. Wiechmann, T. Glarner, F. Rautenberg, P. Wagner, R. Haeb-Umbach, in:
    18. Phonetik Und Phonologie Im Deutschsprachigen Raum (P&#38;P), 2022.'
conference:
  end_date: 2022-10-07
  location: Bielefeld
  start_date: 2022-10-06
date_created: 2022-10-12T07:10:03Z
date_updated: 2023-11-22T13:45:30Z
ddc:
- '000'
department:
- _id: '54'
- _id: '660'
file:
- access_level: open_access
  content_type: application/pdf
  creator: huesera
  date_created: 2022-10-12T07:09:26Z
  date_updated: 2022-10-12T07:09:26Z
  file_id: '33697'
  file_name: PP_2022_paper_8911.pdf
  file_size: 109294
  relation: main_file
file_date_updated: 2022-10-12T07:09:26Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
project:
- _id: '129'
  grant_number: '438445824'
  name: 'TRR 318 - C06: TRR 318 - Technisch unterstütztes Erklären von Stimmcharakteristika
    (Teilprojekt C06)'
publication: 18. Phonetik und Phonologie im deutschsprachigen Raum (P&P)
status: public
title: Technically enabled explaining of voice characteristics
type: conference
user_id: '72602'
year: '2022'
...
---
_id: '33957'
abstract:
- lang: eng
  text: Manufacturing companies are challenged to make the increasingly complex work
    processes equally manageable for all employees to prevent an impending loss of
    competence. In this contribution, an intelligent assistance system is proposed
    enabling employees to help themselves in the workplace and provide them with competence-related
    support. This results in increasing the short- and long-term efficiency of problem
    solving in companies.
author:
- first_name: Sahar
  full_name: Deppe, Sahar
  last_name: Deppe
- first_name: Lukas
  full_name: Brandt, Lukas
  last_name: Brandt
- first_name: Marc
  full_name: Brünninghaus, Marc
  last_name: Brünninghaus
- first_name: Jörg
  full_name: Papenkordt, Jörg
  id: '44648'
  last_name: Papenkordt
- first_name: Stefan
  full_name: Heindorf, Stefan
  id: '11871'
  last_name: Heindorf
  orcid: 0000-0002-4525-6865
- first_name: Gudrun
  full_name: Tschirner-Vinke, Gudrun
  last_name: Tschirner-Vinke
citation:
  ama: Deppe S, Brandt L, Brünninghaus M, Papenkordt J, Heindorf S, Tschirner-Vinke
    G. AI-Based Assistance System for Manufacturing. Published online 2022. doi:<a
    href="https://doi.org/10.1109/ETFA52439.2022.9921520">10.1109/ETFA52439.2022.9921520</a>
  apa: Deppe, S., Brandt, L., Brünninghaus, M., Papenkordt, J., Heindorf, S., &#38;
    Tschirner-Vinke, G. (2022). <i>AI-Based Assistance System for Manufacturing</i>.
    ETFA, Stuttgart. <a href="https://doi.org/10.1109/ETFA52439.2022.9921520">https://doi.org/10.1109/ETFA52439.2022.9921520</a>
  bibtex: '@article{Deppe_Brandt_Brünninghaus_Papenkordt_Heindorf_Tschirner-Vinke_2022,
    series={2022 IEEE 27th International Conference on Emerging Technologies and Factory
    Automation (ETFA)}, title={AI-Based Assistance System for Manufacturing}, DOI={<a
    href="https://doi.org/10.1109/ETFA52439.2022.9921520">10.1109/ETFA52439.2022.9921520</a>},
    author={Deppe, Sahar and Brandt, Lukas and Brünninghaus, Marc and Papenkordt,
    Jörg and Heindorf, Stefan and Tschirner-Vinke, Gudrun}, year={2022}, collection={2022
    IEEE 27th International Conference on Emerging Technologies and Factory Automation
    (ETFA)} }'
  chicago: Deppe, Sahar, Lukas Brandt, Marc Brünninghaus, Jörg Papenkordt, Stefan
    Heindorf, and Gudrun Tschirner-Vinke. “AI-Based Assistance System for Manufacturing.”
    2022 IEEE 27th International Conference on Emerging Technologies and Factory Automation
    (ETFA), 2022. <a href="https://doi.org/10.1109/ETFA52439.2022.9921520">https://doi.org/10.1109/ETFA52439.2022.9921520</a>.
  ieee: 'S. Deppe, L. Brandt, M. Brünninghaus, J. Papenkordt, S. Heindorf, and G.
    Tschirner-Vinke, “AI-Based Assistance System for Manufacturing.” 2022, doi: <a
    href="https://doi.org/10.1109/ETFA52439.2022.9921520">10.1109/ETFA52439.2022.9921520</a>.'
  mla: Deppe, Sahar, et al. <i>AI-Based Assistance System for Manufacturing</i>. 2022,
    doi:<a href="https://doi.org/10.1109/ETFA52439.2022.9921520">10.1109/ETFA52439.2022.9921520</a>.
  short: S. Deppe, L. Brandt, M. Brünninghaus, J. Papenkordt, S. Heindorf, G. Tschirner-Vinke,
    (2022).
conference:
  end_date: 2022-09-09
  location: Stuttgart
  name: ETFA
  start_date: 2022-09-06
date_created: 2022-10-28T11:43:49Z
date_updated: 2023-11-23T08:07:51Z
department:
- _id: '178'
- _id: '574'
- _id: '184'
doi: 10.1109/ETFA52439.2022.9921520
keyword:
- Assistance system
- Knowledge graph
- Information retrieval
- Neural networks
- AR
language:
- iso: eng
project:
- _id: '409'
  grant_number: 02L19C115
  name: 'KIAM: KIAM: Kompetenzzentrum KI in der Arbeitswelt des industriellen Mittelstands
    in OstWestfalenLippe'
related_material:
  link:
  - relation: confirmation
    url: https://ieeexplore.ieee.org/document/9921520
series_title: 2022 IEEE 27th International Conference on Emerging Technologies and
  Factory Automation (ETFA)
status: public
title: AI-Based Assistance System for Manufacturing
type: conference
user_id: '44648'
year: '2022'
...
---
_id: '30733'
abstract:
- lang: eng
  text: Hamilton-Jacobi reachability methods for safety-critical control have been
    well studied, but the safety guarantees derived rely on the accuracy of the numerical
    computation. Thus, it is crucial to understand and account for any inaccuracies
    that occur due to uncertainty in the underlying dynamics and environment as well
    as the induced numerical errors. To this end, we propose a framework for modeling
    the error of the value function inherent in Hamilton-Jacobi reachability using
    a Gaussian process. The derived safety controller can be used in conjuncture with
    arbitrary controllers to provide a safe hybrid control law. The marginal likelihood
    of the Gaussian process then provides a confidence metric used to determine switches
    between a least restrictive controller and a safety controller. We test both the
    prediction as well as the correction capabilities of the presented method in a
    classical pursuit-evasion example.
author:
- first_name: Nikolaus
  full_name: Vertovec, Nikolaus
  id: '93930'
  last_name: Vertovec
- first_name: Sina
  full_name: Ober-Blöbaum, Sina
  id: '16494'
  last_name: Ober-Blöbaum
- first_name: Kostas
  full_name: Margellos, Kostas
  last_name: Margellos
citation:
  ama: 'Vertovec N, Ober-Blöbaum S, Margellos K. Verification of safety critical control
    policies using kernel methods. In: ; 2022:1870-1875.'
  apa: Vertovec, N., Ober-Blöbaum, S., &#38; Margellos, K. (2022). <i>Verification
    of safety critical control policies using kernel methods</i>. 1870–1875.
  bibtex: '@inproceedings{Vertovec_Ober-Blöbaum_Margellos_2022, title={Verification
    of safety critical control policies using kernel methods}, author={Vertovec, Nikolaus
    and Ober-Blöbaum, Sina and Margellos, Kostas}, year={2022}, pages={1870–1875}
    }'
  chicago: Vertovec, Nikolaus, Sina Ober-Blöbaum, and Kostas Margellos. “Verification
    of Safety Critical Control Policies Using Kernel Methods,” 1870–75, 2022.
  ieee: N. Vertovec, S. Ober-Blöbaum, and K. Margellos, “Verification of safety critical
    control policies using kernel methods,” London, 2022, pp. 1870–1875.
  mla: Vertovec, Nikolaus, et al. <i>Verification of Safety Critical Control Policies
    Using Kernel Methods</i>. 2022, pp. 1870–75.
  short: 'N. Vertovec, S. Ober-Blöbaum, K. Margellos, in: 2022, pp. 1870–1875.'
conference:
  end_date: 2022-07-15
  location: London
  name: 2022 European Control Conference (ECC)
  start_date: 2022-07-12
date_created: 2022-03-31T11:14:13Z
date_updated: 2023-11-29T10:00:18Z
ddc:
- '510'
department:
- _id: '636'
has_accepted_license: '1'
language:
- iso: eng
page: 1870-1875
status: public
title: Verification of safety critical control policies using kernel methods
type: conference
user_id: '15694'
year: '2022'
...
---
_id: '46306'
abstract:
- lang: eng
  text: Hyperparameter optimization (HPO) is a key component of machine learning models
    for achieving peak predictive performance. While numerous methods and algorithms
    for HPO have been proposed over the last years, little progress has been made
    in illuminating and examining the actual structure of these black-box optimization
    problems. Exploratory landscape analysis (ELA) subsumes a set of techniques that
    can be used to gain knowledge about properties of unknown optimization problems.
    In this paper, we evaluate the performance of five different black-box optimizers
    on 30 HPO problems, which consist of two-, three- and five-dimensional continuous
    search spaces of the XGBoost learner trained on 10 different data sets. This is
    contrasted with the performance of the same optimizers evaluated on 360 problem
    instances from the black-box optimization benchmark (BBOB). We then compute ELA
    features on the HPO and BBOB problems and examine similarities and differences.
    A cluster analysis of the HPO and BBOB problems in ELA feature space allows us
    to identify how the HPO problems compare to the BBOB problems on a structural
    meta-level. We identify a subset of BBOB problems that are close to the HPO problems
    in ELA feature space and show that optimizer performance is comparably similar
    on these two sets of benchmark problems. We highlight open challenges of ELA for
    HPO and discuss potential directions of future research and applications.
author:
- first_name: Lennart
  full_name: Schneider, Lennart
  last_name: Schneider
- first_name: Lennart
  full_name: Schäpermeier, Lennart
  last_name: Schäpermeier
- first_name: Raphael Patrick
  full_name: Prager, Raphael Patrick
  last_name: Prager
- first_name: Bernd
  full_name: Bischl, Bernd
  last_name: Bischl
- first_name: Heike
  full_name: Trautmann, Heike
  id: '100740'
  last_name: Trautmann
  orcid: 0000-0002-9788-8282
- first_name: Pascal
  full_name: Kerschke, Pascal
  last_name: Kerschke
citation:
  ama: 'Schneider L, Schäpermeier L, Prager RP, Bischl B, Trautmann H, Kerschke P.
    HPO x ELA: Investigating Hyperparameter Optimization Landscapes by Means of Exploratory
    Landscape Analysis. In: Rudolph G, Kononova AV, Aguirre H, Kerschke P, Ochoa G,
    Tušar T, eds. <i>Parallel Problem Solving from Nature — PPSN XVII</i>. Springer
    International Publishing; 2022:575–589. doi:<a href="https://doi.org/10.1007/978-3-031-14714-2_40">10.1007/978-3-031-14714-2_40</a>'
  apa: 'Schneider, L., Schäpermeier, L., Prager, R. P., Bischl, B., Trautmann, H.,
    &#38; Kerschke, P. (2022). HPO x ELA: Investigating Hyperparameter Optimization
    Landscapes by Means of Exploratory Landscape Analysis. In G. Rudolph, A. V. Kononova,
    H. Aguirre, P. Kerschke, G. Ochoa, &#38; T. Tušar (Eds.), <i>Parallel Problem
    Solving from Nature — PPSN XVII</i> (pp. 575–589). Springer International Publishing.
    <a href="https://doi.org/10.1007/978-3-031-14714-2_40">https://doi.org/10.1007/978-3-031-14714-2_40</a>'
  bibtex: '@inproceedings{Schneider_Schäpermeier_Prager_Bischl_Trautmann_Kerschke_2022,
    place={Cham}, title={HPO x ELA: Investigating Hyperparameter Optimization Landscapes
    by Means of Exploratory Landscape Analysis}, DOI={<a href="https://doi.org/10.1007/978-3-031-14714-2_40">10.1007/978-3-031-14714-2_40</a>},
    booktitle={Parallel Problem Solving from Nature — PPSN XVII}, publisher={Springer
    International Publishing}, author={Schneider, Lennart and Schäpermeier, Lennart
    and Prager, Raphael Patrick and Bischl, Bernd and Trautmann, Heike and Kerschke,
    Pascal}, editor={Rudolph, Günter and Kononova, Anna V. and Aguirre, Hernán and
    Kerschke, Pascal and Ochoa, Gabriela and Tušar, Tea}, year={2022}, pages={575–589}
    }'
  chicago: 'Schneider, Lennart, Lennart Schäpermeier, Raphael Patrick Prager, Bernd
    Bischl, Heike Trautmann, and Pascal Kerschke. “HPO x ELA: Investigating Hyperparameter
    Optimization Landscapes by Means of Exploratory Landscape Analysis.” In <i>Parallel
    Problem Solving from Nature — PPSN XVII</i>, edited by Günter Rudolph, Anna V.
    Kononova, Hernán Aguirre, Pascal Kerschke, Gabriela Ochoa, and Tea Tušar, 575–589.
    Cham: Springer International Publishing, 2022. <a href="https://doi.org/10.1007/978-3-031-14714-2_40">https://doi.org/10.1007/978-3-031-14714-2_40</a>.'
  ieee: 'L. Schneider, L. Schäpermeier, R. P. Prager, B. Bischl, H. Trautmann, and
    P. Kerschke, “HPO x ELA: Investigating Hyperparameter Optimization Landscapes
    by Means of Exploratory Landscape Analysis,” in <i>Parallel Problem Solving from
    Nature — PPSN XVII</i>, 2022, pp. 575–589, doi: <a href="https://doi.org/10.1007/978-3-031-14714-2_40">10.1007/978-3-031-14714-2_40</a>.'
  mla: 'Schneider, Lennart, et al. “HPO x ELA: Investigating Hyperparameter Optimization
    Landscapes by Means of Exploratory Landscape Analysis.” <i>Parallel Problem Solving
    from Nature — PPSN XVII</i>, edited by Günter Rudolph et al., Springer International
    Publishing, 2022, pp. 575–589, doi:<a href="https://doi.org/10.1007/978-3-031-14714-2_40">10.1007/978-3-031-14714-2_40</a>.'
  short: 'L. Schneider, L. Schäpermeier, R.P. Prager, B. Bischl, H. Trautmann, P.
    Kerschke, in: G. Rudolph, A.V. Kononova, H. Aguirre, P. Kerschke, G. Ochoa, T.
    Tušar (Eds.), Parallel Problem Solving from Nature — PPSN XVII, Springer International
    Publishing, Cham, 2022, pp. 575–589.'
date_created: 2023-08-04T07:15:16Z
date_updated: 2023-10-16T12:51:27Z
department:
- _id: '34'
- _id: '819'
doi: 10.1007/978-3-031-14714-2_40
editor:
- first_name: Günter
  full_name: Rudolph, Günter
  last_name: Rudolph
- first_name: Anna V.
  full_name: Kononova, Anna V.
  last_name: Kononova
- first_name: Hernán
  full_name: Aguirre, Hernán
  last_name: Aguirre
- first_name: Pascal
  full_name: Kerschke, Pascal
  last_name: Kerschke
- first_name: Gabriela
  full_name: Ochoa, Gabriela
  last_name: Ochoa
- first_name: Tea
  full_name: Tušar, Tea
  last_name: Tušar
language:
- iso: eng
page: 575–589
place: Cham
publication: Parallel Problem Solving from Nature — PPSN XVII
publication_identifier:
  isbn:
  - 978-3-031-14714-2
publisher: Springer International Publishing
status: public
title: 'HPO x ELA: Investigating Hyperparameter Optimization Landscapes by Means of
  Exploratory Landscape Analysis'
type: conference
user_id: '15504'
year: '2022'
...
---
_id: '46308'
abstract:
- lang: eng
  text: Single-objective continuous optimization can be challenging, especially when
    dealing with multimodal problems. This work sheds light on the effects that multi-objective
    optimization may have in the single-objective space. For this purpose, we examine
    the inner mechanisms of the recently developed sophisticated local search procedure
    SOMOGSA. This method solves multimodal single-objective continuous optimization
    problems based on first expanding the problem with an additional objective (e.g.,
    a sphere function) to the bi-objective domain and subsequently exploiting local
    structures of the resulting landscapes. Our study particularly focuses on the
    sensitivity of this multiobjectivization approach w.r.t. (1) the parametrization
    of the artificial second objective, as well as (2) the position of the initial
    starting points in the search space. As SOMOGSA is a modular framework for encapsulating
    local search, we integrate Nelder–Mead local search as optimizer in the respective
    module and compare the performance of the resulting hybrid local search to its
    original single-objective counterpart. We show that the SOMOGSA framework can
    significantly boost local search by multiobjectivization. Hence, combined with
    more sophisticated local search and metaheuristics, this may help solve highly
    multimodal optimization problems in the future.
author:
- first_name: Pelin
  full_name: Aspar, Pelin
  last_name: Aspar
- first_name: Vera
  full_name: Steinhoff, Vera
  last_name: Steinhoff
- first_name: Lennart
  full_name: Schäpermeier, Lennart
  last_name: Schäpermeier
- first_name: Pascal
  full_name: Kerschke, Pascal
  last_name: Kerschke
- first_name: Heike
  full_name: Trautmann, Heike
  id: '100740'
  last_name: Trautmann
  orcid: 0000-0002-9788-8282
- first_name: Christian
  full_name: Grimme, Christian
  last_name: Grimme
citation:
  ama: 'Aspar P, Steinhoff V, Schäpermeier L, Kerschke P, Trautmann H, Grimme C. The
    objective that freed me: a multi-objective local search approach for continuous
    single-objective optimization. <i>Natural Computing</i>. 2022;1:1–15. doi:<a href="https://doi.org/10.1007/s11047-022-09919-w">10.1007/s11047-022-09919-w</a>'
  apa: 'Aspar, P., Steinhoff, V., Schäpermeier, L., Kerschke, P., Trautmann, H., &#38;
    Grimme, C. (2022). The objective that freed me: a multi-objective local search
    approach for continuous single-objective optimization. <i>Natural Computing</i>,
    <i>1</i>, 1–15. <a href="https://doi.org/10.1007/s11047-022-09919-w">https://doi.org/10.1007/s11047-022-09919-w</a>'
  bibtex: '@article{Aspar_Steinhoff_Schäpermeier_Kerschke_Trautmann_Grimme_2022, title={The
    objective that freed me: a multi-objective local search approach for continuous
    single-objective optimization}, volume={1}, DOI={<a href="https://doi.org/10.1007/s11047-022-09919-w">10.1007/s11047-022-09919-w</a>},
    journal={Natural Computing}, author={Aspar, Pelin and Steinhoff, Vera and Schäpermeier,
    Lennart and Kerschke, Pascal and Trautmann, Heike and Grimme, Christian}, year={2022},
    pages={1–15} }'
  chicago: 'Aspar, Pelin, Vera Steinhoff, Lennart Schäpermeier, Pascal Kerschke, Heike
    Trautmann, and Christian Grimme. “The Objective That Freed Me: A Multi-Objective
    Local Search Approach for Continuous Single-Objective Optimization.” <i>Natural
    Computing</i> 1 (2022): 1–15. <a href="https://doi.org/10.1007/s11047-022-09919-w">https://doi.org/10.1007/s11047-022-09919-w</a>.'
  ieee: 'P. Aspar, V. Steinhoff, L. Schäpermeier, P. Kerschke, H. Trautmann, and C.
    Grimme, “The objective that freed me: a multi-objective local search approach
    for continuous single-objective optimization,” <i>Natural Computing</i>, vol.
    1, pp. 1–15, 2022, doi: <a href="https://doi.org/10.1007/s11047-022-09919-w">10.1007/s11047-022-09919-w</a>.'
  mla: 'Aspar, Pelin, et al. “The Objective That Freed Me: A Multi-Objective Local
    Search Approach for Continuous Single-Objective Optimization.” <i>Natural Computing</i>,
    vol. 1, 2022, pp. 1–15, doi:<a href="https://doi.org/10.1007/s11047-022-09919-w">10.1007/s11047-022-09919-w</a>.'
  short: P. Aspar, V. Steinhoff, L. Schäpermeier, P. Kerschke, H. Trautmann, C. Grimme,
    Natural Computing 1 (2022) 1–15.
date_created: 2023-08-04T07:16:40Z
date_updated: 2023-10-16T12:52:33Z
department:
- _id: '34'
- _id: '819'
doi: 10.1007/s11047-022-09919-w
intvolume: '         1'
language:
- iso: eng
page: 1–15
publication: Natural Computing
status: public
title: 'The objective that freed me: a multi-objective local search approach for continuous
  single-objective optimization'
type: journal_article
user_id: '15504'
volume: 1
year: '2022'
...
---
_id: '48299'
abstract:
- lang: eng
  text: Graph convolutional networks (GCNs) are a powerful architecture for representation
    learning on documents that naturally occur as graphs, e.g., citation or social
    networks. However, sensitive personal information, such as documents with people{’}s
    profiles or relationships as edges, are prone to privacy leaks, as the trained
    model might reveal the original input. Although differential privacy (DP) offers
    a well-founded privacy-preserving framework, GCNs pose theoretical and practical
    challenges due to their training specifics. We address these challenges by adapting
    differentially-private gradient-based training to GCNs and conduct experiments
    using two optimizers on five NLP datasets in two languages. We propose a simple
    yet efficient method based on random graph splits that not only improves the baseline
    privacy bounds by a factor of 2.7 while retaining competitive F1 scores, but also
    provides strong privacy guarantees of epsilon = 1.0. We show that, under certain
    modeling choices, privacy-preserving GCNs perform up to 90{%} of their non-private
    variants, while formally guaranteeing strong privacy measures.
author:
- first_name: Timour
  full_name: Igamberdiev, Timour
  last_name: Igamberdiev
- first_name: Ivan
  full_name: Habernal, Ivan
  id: '101881'
  last_name: Habernal
citation:
  ama: 'Igamberdiev T, Habernal I. Privacy-Preserving Graph Convolutional Networks
    for Text Classification. In: <i>Proceedings of the Thirteenth Language Resources
    and Evaluation Conference</i>. European Language Resources Association; 2022:338–350.'
  apa: Igamberdiev, T., &#38; Habernal, I. (2022). Privacy-Preserving Graph Convolutional
    Networks for Text Classification. <i>Proceedings of the Thirteenth Language Resources
    and Evaluation Conference</i>, 338–350.
  bibtex: '@inproceedings{Igamberdiev_Habernal_2022, place={Marseille, France}, title={Privacy-Preserving
    Graph Convolutional Networks for Text Classification}, booktitle={Proceedings
    of the Thirteenth Language Resources and Evaluation Conference}, publisher={European
    Language Resources Association}, author={Igamberdiev, Timour and Habernal, Ivan},
    year={2022}, pages={338–350} }'
  chicago: 'Igamberdiev, Timour, and Ivan Habernal. “Privacy-Preserving Graph Convolutional
    Networks for Text Classification.” In <i>Proceedings of the Thirteenth Language
    Resources and Evaluation Conference</i>, 338–350. Marseille, France: European
    Language Resources Association, 2022.'
  ieee: T. Igamberdiev and I. Habernal, “Privacy-Preserving Graph Convolutional Networks
    for Text Classification,” in <i>Proceedings of the Thirteenth Language Resources
    and Evaluation Conference</i>, 2022, pp. 338–350.
  mla: Igamberdiev, Timour, and Ivan Habernal. “Privacy-Preserving Graph Convolutional
    Networks for Text Classification.” <i>Proceedings of the Thirteenth Language Resources
    and Evaluation Conference</i>, European Language Resources Association, 2022,
    pp. 338–350.
  short: 'T. Igamberdiev, I. Habernal, in: Proceedings of the Thirteenth Language
    Resources and Evaluation Conference, European Language Resources Association,
    Marseille, France, 2022, pp. 338–350.'
date_created: 2023-10-19T08:26:58Z
date_updated: 2023-10-19T12:05:12Z
department:
- _id: '34'
- _id: '820'
language:
- iso: eng
page: 338–350
place: Marseille, France
publication: Proceedings of the Thirteenth Language Resources and Evaluation Conference
publisher: European Language Resources Association
status: public
title: Privacy-Preserving Graph Convolutional Networks for Text Classification
type: conference
user_id: '15504'
year: '2022'
...
---
_id: '48300'
abstract:
- lang: eng
  text: Text rewriting with differential privacy (DP) provides concrete theoretical
    guarantees for protecting the privacy of individuals in textual documents. In
    practice, existing systems may lack the means to validate their privacy-preserving
    claims, leading to problems of transparency and reproducibility. We introduce
    DP-Rewrite, an open-source framework for differentially private text rewriting
    which aims to solve these problems by being modular, extensible, and highly customizable.
    Our system incorporates a variety of downstream datasets, models, pre-training
    procedures, and evaluation metrics to provide a flexible way to lead and validate
    private text rewriting research. To demonstrate our software in practice, we provide
    a set of experiments as a case study on the ADePT DP text rewriting system, detecting
    a privacy leak in its pre-training approach. Our system is publicly available,
    and we hope that it will help the community to make DP text rewriting research
    more accessible and transparent.
author:
- first_name: Timour
  full_name: Igamberdiev, Timour
  last_name: Igamberdiev
- first_name: Thomas
  full_name: Arnold, Thomas
  last_name: Arnold
- first_name: Ivan
  full_name: Habernal, Ivan
  id: '101881'
  last_name: Habernal
citation:
  ama: 'Igamberdiev T, Arnold T, Habernal I. DP-Rewrite: Towards Reproducibility and
    Transparency in Differentially Private Text Rewriting. In: <i>Proceedings of the
    29th International Conference on Computational Linguistics</i>. International
    Committee on Computational Linguistics; 2022:2927–2933.'
  apa: 'Igamberdiev, T., Arnold, T., &#38; Habernal, I. (2022). DP-Rewrite: Towards
    Reproducibility and Transparency in Differentially Private Text Rewriting. <i>Proceedings
    of the 29th International Conference on Computational Linguistics</i>, 2927–2933.'
  bibtex: '@inproceedings{Igamberdiev_Arnold_Habernal_2022, place={Gyeongju, Republic
    of Korea}, title={DP-Rewrite: Towards Reproducibility and Transparency in Differentially
    Private Text Rewriting}, booktitle={Proceedings of the 29th International Conference
    on Computational Linguistics}, publisher={International Committee on Computational
    Linguistics}, author={Igamberdiev, Timour and Arnold, Thomas and Habernal, Ivan},
    year={2022}, pages={2927–2933} }'
  chicago: 'Igamberdiev, Timour, Thomas Arnold, and Ivan Habernal. “DP-Rewrite: Towards
    Reproducibility and Transparency in Differentially Private Text Rewriting.” In
    <i>Proceedings of the 29th International Conference on Computational Linguistics</i>,
    2927–2933. Gyeongju, Republic of Korea: International Committee on Computational
    Linguistics, 2022.'
  ieee: 'T. Igamberdiev, T. Arnold, and I. Habernal, “DP-Rewrite: Towards Reproducibility
    and Transparency in Differentially Private Text Rewriting,” in <i>Proceedings
    of the 29th International Conference on Computational Linguistics</i>, 2022, pp.
    2927–2933.'
  mla: 'Igamberdiev, Timour, et al. “DP-Rewrite: Towards Reproducibility and Transparency
    in Differentially Private Text Rewriting.” <i>Proceedings of the 29th International
    Conference on Computational Linguistics</i>, International Committee on Computational
    Linguistics, 2022, pp. 2927–2933.'
  short: 'T. Igamberdiev, T. Arnold, I. Habernal, in: Proceedings of the 29th International
    Conference on Computational Linguistics, International Committee on Computational
    Linguistics, Gyeongju, Republic of Korea, 2022, pp. 2927–2933.'
date_created: 2023-10-19T08:27:05Z
date_updated: 2023-10-19T12:04:57Z
department:
- _id: '34'
- _id: '820'
language:
- iso: eng
page: 2927–2933
place: Gyeongju, Republic of Korea
publication: Proceedings of the 29th International Conference on Computational Linguistics
publisher: International Committee on Computational Linguistics
status: public
title: 'DP-Rewrite: Towards Reproducibility and Transparency in Differentially Private
  Text Rewriting'
type: conference
user_id: '15504'
year: '2022'
...
---
_id: '48298'
author:
- first_name: Ivan
  full_name: Habernal, Ivan
  id: '101881'
  last_name: Habernal
citation:
  ama: 'Habernal I. How reparametrization trick broke differentially-private text
    representation learning. In: <i>Proceedings of the 60th Annual Meeting of the
    Association for Computational Linguistics (Volume 2: Short Papers)</i>. Association
    for Computational Linguistics; 2022. doi:<a href="https://doi.org/10.18653/v1/2022.acl-short.87">10.18653/v1/2022.acl-short.87</a>'
  apa: 'Habernal, I. (2022). How reparametrization trick broke differentially-private
    text representation learning. <i>Proceedings of the 60th Annual Meeting of the
    Association for Computational Linguistics (Volume 2: Short Papers)</i>. <a href="https://doi.org/10.18653/v1/2022.acl-short.87">https://doi.org/10.18653/v1/2022.acl-short.87</a>'
  bibtex: '@inproceedings{Habernal_2022, title={How reparametrization trick broke
    differentially-private text representation learning}, DOI={<a href="https://doi.org/10.18653/v1/2022.acl-short.87">10.18653/v1/2022.acl-short.87</a>},
    booktitle={Proceedings of the 60th Annual Meeting of the Association for Computational
    Linguistics (Volume 2: Short Papers)}, publisher={Association for Computational
    Linguistics}, author={Habernal, Ivan}, year={2022} }'
  chicago: 'Habernal, Ivan. “How Reparametrization Trick Broke Differentially-Private
    Text Representation Learning.” In <i>Proceedings of the 60th Annual Meeting of
    the Association for Computational Linguistics (Volume 2: Short Papers)</i>. Association
    for Computational Linguistics, 2022. <a href="https://doi.org/10.18653/v1/2022.acl-short.87">https://doi.org/10.18653/v1/2022.acl-short.87</a>.'
  ieee: 'I. Habernal, “How reparametrization trick broke differentially-private text
    representation learning,” 2022, doi: <a href="https://doi.org/10.18653/v1/2022.acl-short.87">10.18653/v1/2022.acl-short.87</a>.'
  mla: 'Habernal, Ivan. “How Reparametrization Trick Broke Differentially-Private
    Text Representation Learning.” <i>Proceedings of the 60th Annual Meeting of the
    Association for Computational Linguistics (Volume 2: Short Papers)</i>, Association
    for Computational Linguistics, 2022, doi:<a href="https://doi.org/10.18653/v1/2022.acl-short.87">10.18653/v1/2022.acl-short.87</a>.'
  short: 'I. Habernal, in: Proceedings of the 60th Annual Meeting of the Association
    for Computational Linguistics (Volume 2: Short Papers), Association for Computational
    Linguistics, 2022.'
date_created: 2023-10-19T08:26:35Z
date_updated: 2023-10-19T12:05:39Z
department:
- _id: '34'
- _id: '820'
doi: 10.18653/v1/2022.acl-short.87
language:
- iso: eng
publication: 'Proceedings of the 60th Annual Meeting of the Association for Computational
  Linguistics (Volume 2: Short Papers)'
publication_status: published
publisher: Association for Computational Linguistics
status: public
title: How reparametrization trick broke differentially-private text representation
  learning
type: conference
user_id: '15504'
year: '2022'
...
---
_id: '35126'
author:
- first_name: Nikolas
  full_name: Förster, Nikolas
  id: '83383'
  last_name: Förster
- first_name: Jonas
  full_name: Hölscher, Jonas
  last_name: Hölscher
- first_name: Till
  full_name: Piepenbrock, Till
  last_name: Piepenbrock
- first_name: Philipp
  full_name: Rehlaender, Philipp
  id: '69469'
  last_name: Rehlaender
- first_name: Oliver
  full_name: Wallscheid, Oliver
  id: '11291'
  last_name: Wallscheid
  orcid: https://orcid.org/0000-0001-9362-8777
- first_name: Frank
  full_name: Schafmeister, Frank
  id: '71291'
  last_name: Schafmeister
- first_name: Joachim
  full_name: Böcker, Joachim
  id: '66'
  last_name: Böcker
  orcid: 0000-0002-8480-7295
citation:
  ama: 'Förster N, Hölscher J, Piepenbrock T, et al. An Open-Source FEM Magnetic Toolbox
    for Calculating Electric and Thermal Behavior of Power Electronic Magnetic Components.
    In: <i>2022 24th European Conference on Power Electronics and Applications (EPE’22
    ECCE Europe)</i>. ; 2022:P.1-P.9.'
  apa: Förster, N., Hölscher, J., Piepenbrock, T., Rehlaender, P., Wallscheid, O.,
    Schafmeister, F., &#38; Böcker, J. (2022). An Open-Source FEM Magnetic Toolbox
    for Calculating Electric and Thermal Behavior of Power Electronic Magnetic Components.
    <i>2022 24th European Conference on Power Electronics and Applications (EPE’22
    ECCE Europe)</i>, P.1-P.9.
  bibtex: '@inproceedings{Förster_Hölscher_Piepenbrock_Rehlaender_Wallscheid_Schafmeister_Böcker_2022,
    title={An Open-Source FEM Magnetic Toolbox for Calculating Electric and Thermal
    Behavior of Power Electronic Magnetic Components}, booktitle={2022 24th European
    Conference on Power Electronics and Applications (EPE’22 ECCE Europe)}, author={Förster,
    Nikolas and Hölscher, Jonas and Piepenbrock, Till and Rehlaender, Philipp and
    Wallscheid, Oliver and Schafmeister, Frank and Böcker, Joachim}, year={2022},
    pages={P.1-P.9} }'
  chicago: Förster, Nikolas, Jonas Hölscher, Till Piepenbrock, Philipp Rehlaender,
    Oliver Wallscheid, Frank Schafmeister, and Joachim Böcker. “An Open-Source FEM
    Magnetic Toolbox for Calculating Electric and Thermal Behavior of Power Electronic
    Magnetic Components.” In <i>2022 24th European Conference on Power Electronics
    and Applications (EPE’22 ECCE Europe)</i>, P.1-P.9, 2022.
  ieee: N. Förster <i>et al.</i>, “An Open-Source FEM Magnetic Toolbox for Calculating
    Electric and Thermal Behavior of Power Electronic Magnetic Components,” in <i>2022
    24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe)</i>,
    2022, p. P.1-P.9.
  mla: Förster, Nikolas, et al. “An Open-Source FEM Magnetic Toolbox for Calculating
    Electric and Thermal Behavior of Power Electronic Magnetic Components.” <i>2022
    24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe)</i>,
    2022, p. P.1-P.9.
  short: 'N. Förster, J. Hölscher, T. Piepenbrock, P. Rehlaender, O. Wallscheid, F.
    Schafmeister, J. Böcker, in: 2022 24th European Conference on Power Electronics
    and Applications (EPE’22 ECCE Europe), 2022, p. P.1-P.9.'
date_created: 2023-01-03T08:56:48Z
date_updated: 2023-10-20T11:39:27Z
department:
- _id: '52'
language:
- iso: eng
page: P.1-P.9
publication: 2022 24th European Conference on Power Electronics and Applications (EPE’22
  ECCE Europe)
status: public
title: An Open-Source FEM Magnetic Toolbox for Calculating Electric and Thermal Behavior
  of Power Electronic Magnetic Components
type: conference
user_id: '83383'
year: '2022'
...
---
_id: '30863'
abstract:
- lang: eng
  text: "<jats:title>Abstract</jats:title>\r\n               <jats:p>In this paper
    a measurement procedure to identify viscoelastic material parameters of plate-like
    samples using broadband ultrasonic waves is presented. Ultrasonic Lamb waves are
    excited via the thermoelastic effect using laser radiation and detected by a piezoelectric
    transducer. The resulting measurement data is transformed to yield information
    about multiple propagating Lamb waves as well as their attenuation. These results
    are compared to simulation results in an inverse procedure to identify the parameters
    of an elastic and a viscoelastic material model.</jats:p>"
author:
- first_name: Sarah
  full_name: Johannesmann, Sarah
  id: '29190'
  last_name: Johannesmann
- first_name: Leander
  full_name: Claes, Leander
  id: '11829'
  last_name: Claes
  orcid: 0000-0002-4393-268X
- first_name: Nadine
  full_name: Feldmann, Nadine
  id: '23082'
  last_name: Feldmann
- first_name: Henning
  full_name: Zeipert, Henning
  id: '32580'
  last_name: Zeipert
- first_name: Bernd
  full_name: Henning, Bernd
  id: '213'
  last_name: Henning
citation:
  ama: Johannesmann S, Claes L, Feldmann N, Zeipert H, Henning B. Lamb wave based
    approach to the determination of acoustic material parameters. <i>tm - Technisches
    Messen</i>. 2022;89(7-8):493-506. doi:<a href="https://doi.org/10.1515/teme-2021-0134">10.1515/teme-2021-0134</a>
  apa: Johannesmann, S., Claes, L., Feldmann, N., Zeipert, H., &#38; Henning, B. (2022).
    Lamb wave based approach to the determination of acoustic material parameters.
    <i>Tm - Technisches Messen</i>, <i>89</i>(7–8), 493–506. <a href="https://doi.org/10.1515/teme-2021-0134">https://doi.org/10.1515/teme-2021-0134</a>
  bibtex: '@article{Johannesmann_Claes_Feldmann_Zeipert_Henning_2022, title={Lamb
    wave based approach to the determination of acoustic material parameters}, volume={89},
    DOI={<a href="https://doi.org/10.1515/teme-2021-0134">10.1515/teme-2021-0134</a>},
    number={7–8}, journal={tm - Technisches Messen}, publisher={Walter de Gruyter
    GmbH}, author={Johannesmann, Sarah and Claes, Leander and Feldmann, Nadine and
    Zeipert, Henning and Henning, Bernd}, year={2022}, pages={493–506} }'
  chicago: 'Johannesmann, Sarah, Leander Claes, Nadine Feldmann, Henning Zeipert,
    and Bernd Henning. “Lamb Wave Based Approach to the Determination of Acoustic
    Material Parameters.” <i>Tm - Technisches Messen</i> 89, no. 7–8 (2022): 493–506.
    <a href="https://doi.org/10.1515/teme-2021-0134">https://doi.org/10.1515/teme-2021-0134</a>.'
  ieee: 'S. Johannesmann, L. Claes, N. Feldmann, H. Zeipert, and B. Henning, “Lamb
    wave based approach to the determination of acoustic material parameters,” <i>tm
    - Technisches Messen</i>, vol. 89, no. 7–8, pp. 493–506, 2022, doi: <a href="https://doi.org/10.1515/teme-2021-0134">10.1515/teme-2021-0134</a>.'
  mla: Johannesmann, Sarah, et al. “Lamb Wave Based Approach to the Determination
    of Acoustic Material Parameters.” <i>Tm - Technisches Messen</i>, vol. 89, no.
    7–8, Walter de Gruyter GmbH, 2022, pp. 493–506, doi:<a href="https://doi.org/10.1515/teme-2021-0134">10.1515/teme-2021-0134</a>.
  short: S. Johannesmann, L. Claes, N. Feldmann, H. Zeipert, B. Henning, Tm - Technisches
    Messen 89 (2022) 493–506.
date_created: 2022-04-12T11:00:22Z
date_updated: 2023-10-23T06:56:20Z
department:
- _id: '49'
doi: 10.1515/teme-2021-0134
intvolume: '        89'
issue: 7 - 8
keyword:
- Electrical and Electronic Engineering
- Instrumentation
language:
- iso: eng
page: 493 - 506
project:
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
- _id: '105'
  grant_number: '449607253'
  name: 'LaWaMoRe: Vermiedene Kreuzungen von Lamb-Wellenmoden in mehrlagigen Strukturen'
- _id: '89'
  grant_number: '409779252'
  name: 'VaMP: Vollständige Bestimmung der akustischen Materialparameter von Polymeren'
- _id: '157'
  grant_number: '495847374'
  name: 'FaMOUS: Ein ultraschallbasiertes Messverfahren unter Berücksichtigung viskoelastischer
    Eigenschaften zur Charakterisierung der Faser-Matrix-Haftung bei Organoblechen
    sowie deren realitätsnahe Modellierung'
publication: tm - Technisches Messen
publication_identifier:
  issn:
  - 2196-7113
  - 0171-8096
publication_status: published
publisher: Walter de Gruyter GmbH
quality_controlled: '1'
status: public
title: Lamb wave based approach to the determination of acoustic material parameters
type: journal_article
user_id: '11829'
volume: 89
year: '2022'
...
---
_id: '6588'
author:
- first_name: Sarah
  full_name: Johannesmann, Sarah
  id: '29190'
  last_name: Johannesmann
- first_name: Leander
  full_name: Claes, Leander
  id: '11829'
  last_name: Claes
  orcid: 0000-0002-4393-268X
- first_name: Bernd
  full_name: Henning, Bernd
  id: '213'
  last_name: Henning
citation:
  ama: 'Johannesmann S, Claes L, Henning B. Estimation of viscoelastic material parameters
    of polymers using Lamb waves. In: <i>Fortschritte Der Akustik - DAGA 2022</i>.
    ; 2022:1401-1404.'
  apa: Johannesmann, S., Claes, L., &#38; Henning, B. (2022). Estimation of viscoelastic
    material parameters of polymers using Lamb waves. <i>Fortschritte Der Akustik
    - DAGA 2022</i>, 1401–1404.
  bibtex: '@inproceedings{Johannesmann_Claes_Henning_2022, title={Estimation of viscoelastic
    material parameters of polymers using Lamb waves}, booktitle={Fortschritte der
    Akustik - DAGA 2022}, author={Johannesmann, Sarah and Claes, Leander and Henning,
    Bernd}, year={2022}, pages={1401–1404} }'
  chicago: Johannesmann, Sarah, Leander Claes, and Bernd Henning. “Estimation of Viscoelastic
    Material Parameters of Polymers Using Lamb Waves.” In <i>Fortschritte Der Akustik
    - DAGA 2022</i>, 1401–4, 2022.
  ieee: S. Johannesmann, L. Claes, and B. Henning, “Estimation of viscoelastic material
    parameters of polymers using Lamb waves,” in <i>Fortschritte der Akustik - DAGA
    2022</i>, Stuttgart, 2022, pp. 1401–1404.
  mla: Johannesmann, Sarah, et al. “Estimation of Viscoelastic Material Parameters
    of Polymers Using Lamb Waves.” <i>Fortschritte Der Akustik - DAGA 2022</i>, 2022,
    pp. 1401–04.
  short: 'S. Johannesmann, L. Claes, B. Henning, in: Fortschritte Der Akustik - DAGA
    2022, 2022, pp. 1401–1404.'
conference:
  end_date: 2022-03-24
  location: Stuttgart
  name: DAGA 2022 - 48. Jahrestagung für Akustik
  start_date: 2022-03-21
date_created: 2019-01-09T15:59:54Z
date_updated: 2023-10-23T06:58:41Z
ddc:
- '620'
department:
- _id: '49'
file:
- access_level: closed
  content_type: application/pdf
  creator: leanderc
  date_created: 2022-03-28T14:39:01Z
  date_updated: 2022-03-28T14:39:01Z
  file_id: '30668'
  file_name: daga2022_joh.pdf
  file_size: 1104577
  relation: main_file
  success: 1
file_date_updated: 2022-03-28T14:39:01Z
has_accepted_license: '1'
language:
- iso: eng
page: 1401-1404
project:
- _id: '89'
  grant_number: '409779252'
  name: 'VaMP: Vollständige Bestimmung der akustischen Materialparameter von Polymeren'
- _id: '105'
  grant_number: '449607253'
  name: 'LaWaMoRe: Vermiedene Kreuzungen von Lamb-Wellenmoden in mehrlagigen Strukturen'
- _id: '157'
  grant_number: '495847374'
  name: 'FaMOUS: Ein ultraschallbasiertes Messverfahren unter Berücksichtigung viskoelastischer
    Eigenschaften zur Charakterisierung der Faser-Matrix-Haftung bei Organoblechen
    sowie deren realitätsnahe Modellierung'
publication: Fortschritte der Akustik - DAGA 2022
status: public
title: Estimation of viscoelastic material parameters of polymers using Lamb waves
type: conference
user_id: '11829'
year: '2022'
...
---
_id: '6560'
author:
- first_name: Sarah
  full_name: Johannesmann, Sarah
  id: '29190'
  last_name: Johannesmann
citation:
  ama: Johannesmann S. <i>Inverses Verfahren Zur Bestimmung Viskoelastischer Materialparameter</i>.;
    2022.
  apa: Johannesmann, S. (2022). <i>Inverses Verfahren zur Bestimmung viskoelastischer
    Materialparameter</i>.
  bibtex: '@book{Johannesmann_2022, place={Workshop “Messtechnische Anwendungen von
    Ultraschall”, Drübeck}, title={Inverses Verfahren zur Bestimmung viskoelastischer
    Materialparameter}, author={Johannesmann, Sarah}, year={2022} }'
  chicago: Johannesmann, Sarah. <i>Inverses Verfahren Zur Bestimmung Viskoelastischer
    Materialparameter</i>. Workshop “Messtechnische Anwendungen von Ultraschall”,
    Drübeck, 2022.
  ieee: S. Johannesmann, <i>Inverses Verfahren zur Bestimmung viskoelastischer Materialparameter</i>.
    Workshop “Messtechnische Anwendungen von Ultraschall”, Drübeck, 2022.
  mla: Johannesmann, Sarah. <i>Inverses Verfahren Zur Bestimmung Viskoelastischer
    Materialparameter</i>. 2022.
  short: S. Johannesmann, Inverses Verfahren Zur Bestimmung Viskoelastischer Materialparameter,
    Workshop “Messtechnische Anwendungen von Ultraschall”, Drübeck, 2022.
date_created: 2019-01-09T14:37:07Z
date_updated: 2023-10-23T06:58:06Z
department:
- _id: '49'
language:
- iso: eng
place: Workshop "Messtechnische Anwendungen von Ultraschall", Drübeck
project:
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
- _id: '157'
  grant_number: '495847374'
  name: 'FaMOUS: Ein ultraschallbasiertes Messverfahren unter Berücksichtigung viskoelastischer
    Eigenschaften zur Charakterisierung der Faser-Matrix-Haftung bei Organoblechen
    sowie deren realitätsnahe Modellierung'
status: public
title: Inverses Verfahren zur Bestimmung viskoelastischer Materialparameter
type: misc
user_id: '11829'
year: '2022'
...
