---
_id: '48281'
abstract:
- lang: eng
text: "\tWe propose a general framework to compute the word error rate (WER) of
ASR systems that process recordings containing multiple speakers at their input
and that produce multiple output word sequences (MIMO).\r\n\tSuch ASR systems
are typically required, e.g., for meeting transcription.\r\n\tWe provide an efficient
implementation based on a dynamic programming search in a multi-dimensional Levenshtein
distance tensor under the constraint that a reference utterance must be matched
consistently with one hypothesis output. \r\n\tThis also results in an efficient
implementation of the ORC WER which previously suffered from exponential complexity.\r\n\tWe
give an overview of commonly used WER definitions for multi-speaker scenarios
and show that they are specializations of the above MIMO WER tuned to particular
application scenarios. \r\n\tWe conclude with a discussion of the pros and cons
of the various WER definitions and a recommendation when to use which."
author:
- 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: Keisuke
full_name: Kinoshita, Keisuke
last_name: Kinoshita
- first_name: Marc
full_name: Delcroix, Marc
last_name: Delcroix
- first_name: Reinhold
full_name: Haeb-Umbach, Reinhold
id: '242'
last_name: Haeb-Umbach
citation:
ama: 'von Neumann T, Boeddeker C, Kinoshita K, Delcroix M, Haeb-Umbach R. On Word
Error Rate Definitions and Their Efficient Computation for Multi-Speaker Speech
Recognition Systems. In: ICASSP 2023 - 2023 IEEE International Conference on
Acoustics, Speech and Signal Processing (ICASSP). IEEE; 2023. doi:10.1109/icassp49357.2023.10094784'
apa: von Neumann, T., Boeddeker, C., Kinoshita, K., Delcroix, M., & Haeb-Umbach,
R. (2023). On Word Error Rate Definitions and Their Efficient Computation for
Multi-Speaker Speech Recognition Systems. ICASSP 2023 - 2023 IEEE International
Conference on Acoustics, Speech and Signal Processing (ICASSP). https://doi.org/10.1109/icassp49357.2023.10094784
bibtex: '@inproceedings{von Neumann_Boeddeker_Kinoshita_Delcroix_Haeb-Umbach_2023,
title={On Word Error Rate Definitions and Their Efficient Computation for Multi-Speaker
Speech Recognition Systems}, DOI={10.1109/icassp49357.2023.10094784},
booktitle={ICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech
and Signal Processing (ICASSP)}, publisher={IEEE}, author={von Neumann, Thilo
and Boeddeker, Christoph and Kinoshita, Keisuke and Delcroix, Marc and Haeb-Umbach,
Reinhold}, year={2023} }'
chicago: Neumann, Thilo von, Christoph Boeddeker, Keisuke Kinoshita, Marc Delcroix,
and Reinhold Haeb-Umbach. “On Word Error Rate Definitions and Their Efficient
Computation for Multi-Speaker Speech Recognition Systems.” In ICASSP 2023 -
2023 IEEE International Conference on Acoustics, Speech and Signal Processing
(ICASSP). IEEE, 2023. https://doi.org/10.1109/icassp49357.2023.10094784.
ieee: 'T. von Neumann, C. Boeddeker, K. Kinoshita, M. Delcroix, and R. Haeb-Umbach,
“On Word Error Rate Definitions and Their Efficient Computation for Multi-Speaker
Speech Recognition Systems,” 2023, doi: 10.1109/icassp49357.2023.10094784.'
mla: von Neumann, Thilo, et al. “On Word Error Rate Definitions and Their Efficient
Computation for Multi-Speaker Speech Recognition Systems.” ICASSP 2023 - 2023
IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP),
IEEE, 2023, doi:10.1109/icassp49357.2023.10094784.
short: 'T. von Neumann, C. Boeddeker, K. Kinoshita, M. Delcroix, R. Haeb-Umbach,
in: ICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech and
Signal Processing (ICASSP), IEEE, 2023.'
date_created: 2023-10-19T07:38:31Z
date_updated: 2025-02-12T09:16:34Z
ddc:
- '000'
department:
- _id: '54'
doi: 10.1109/icassp49357.2023.10094784
file:
- access_level: open_access
content_type: application/pdf
creator: tvn
date_created: 2023-10-19T07:39:57Z
date_updated: 2023-10-19T07:41:56Z
file_id: '48282'
file_name: ICASSP_2023_Meeting_Evaluation.pdf
file_size: 204994
relation: main_file
file_date_updated: 2023-10-19T07:41:56Z
has_accepted_license: '1'
keyword:
- Word Error Rate
- Meeting Recognition
- Levenshtein Distance
language:
- iso: eng
main_file_link:
- url: https://ieeexplore.ieee.org/document/10094784
oa: '1'
project:
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
- _id: '508'
grant_number: '448568305'
name: Automatische Transkription von Gesprächssituationen
publication: ICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech
and Signal Processing (ICASSP)
publication_status: published
publisher: IEEE
quality_controlled: '1'
related_material:
link:
- relation: software
url: https://github.com/fgnt/meeteval
status: public
title: On Word Error Rate Definitions and Their Efficient Computation for Multi-Speaker
Speech Recognition Systems
type: conference
user_id: '40767'
year: '2023'
...
---
_id: '48275'
abstract:
- lang: eng
text: "MeetEval is an open-source toolkit to evaluate all kinds of meeting transcription
systems.\r\nIt provides a unified interface for the computation of commonly used
Word Error Rates (WERs), specifically cpWER, ORC WER and MIMO WER along other
WER definitions.\r\nWe extend the cpWER computation by a temporal constraint to
ensure that only words are identified as correct when the temporal alignment is
plausible.\r\nThis leads to a better quality of the matching of the hypothesis
string to the reference string that more closely resembles the actual transcription
quality, and a system is penalized if it provides poor time annotations.\r\nSince
word-level timing information is often not available, we present a way to approximate
exact word-level timings from segment-level timings (e.g., a sentence) and show
that the approximation leads to a similar WER as a matching with exact word-level
annotations.\r\nAt the same time, the time constraint leads to a speedup of the
matching algorithm, which outweighs the additional overhead caused by processing
the time stamps."
author:
- 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: Marc
full_name: Delcroix, Marc
last_name: Delcroix
- first_name: Reinhold
full_name: Haeb-Umbach, Reinhold
id: '242'
last_name: Haeb-Umbach
citation:
ama: 'von Neumann T, Boeddeker C, Delcroix M, Haeb-Umbach R. MeetEval: A Toolkit
for Computation of Word Error Rates for Meeting Transcription Systems. In: Proc.
CHiME 2023 Workshop on Speech Processing in Everyday Environments. ; 2023.'
apa: 'von Neumann, T., Boeddeker, C., Delcroix, M., & Haeb-Umbach, R. (2023).
MeetEval: A Toolkit for Computation of Word Error Rates for Meeting Transcription
Systems. Proc. CHiME 2023 Workshop on Speech Processing in Everyday Environments.
CHiME 2023 Workshop on Speech Processing in Everyday Environments, Dublin.'
bibtex: '@inproceedings{von Neumann_Boeddeker_Delcroix_Haeb-Umbach_2023, title={MeetEval:
A Toolkit for Computation of Word Error Rates for Meeting Transcription Systems},
booktitle={Proc. CHiME 2023 Workshop on Speech Processing in Everyday Environments},
author={von Neumann, Thilo and Boeddeker, Christoph and Delcroix, Marc and Haeb-Umbach,
Reinhold}, year={2023} }'
chicago: 'Neumann, Thilo von, Christoph Boeddeker, Marc Delcroix, and Reinhold Haeb-Umbach.
“MeetEval: A Toolkit for Computation of Word Error Rates for Meeting Transcription
Systems.” In Proc. CHiME 2023 Workshop on Speech Processing in Everyday Environments,
2023.'
ieee: 'T. von Neumann, C. Boeddeker, M. Delcroix, and R. Haeb-Umbach, “MeetEval:
A Toolkit for Computation of Word Error Rates for Meeting Transcription Systems,”
presented at the CHiME 2023 Workshop on Speech Processing in Everyday Environments,
Dublin, 2023.'
mla: 'von Neumann, Thilo, et al. “MeetEval: A Toolkit for Computation of Word Error
Rates for Meeting Transcription Systems.” Proc. CHiME 2023 Workshop on Speech
Processing in Everyday Environments, 2023.'
short: 'T. von Neumann, C. Boeddeker, M. Delcroix, R. Haeb-Umbach, in: Proc. CHiME
2023 Workshop on Speech Processing in Everyday Environments, 2023.'
conference:
location: Dublin
name: CHiME 2023 Workshop on Speech Processing in Everyday Environments
date_created: 2023-10-19T07:24:51Z
date_updated: 2025-02-12T09:12:05Z
ddc:
- '000'
department:
- _id: '54'
file:
- access_level: open_access
content_type: application/pdf
creator: tvn
date_created: 2023-10-19T07:19:59Z
date_updated: 2023-10-19T07:19:59Z
file_id: '48276'
file_name: Chime_7__MeetEval.pdf
file_size: 263744
relation: main_file
file_date_updated: 2023-10-19T07:19:59Z
has_accepted_license: '1'
keyword:
- Speech Recognition
- Word Error Rate
- Meeting Transcription
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2307.11394
oa: '1'
project:
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
- _id: '508'
grant_number: '448568305'
name: Automatische Transkription von Gesprächssituationen
publication: Proc. CHiME 2023 Workshop on Speech Processing in Everyday Environments
quality_controlled: '1'
related_material:
link:
- relation: software
url: https://github.com/fgnt/meeteval
status: public
title: 'MeetEval: A Toolkit for Computation of Word Error Rates for Meeting Transcription
Systems'
type: conference
user_id: '40767'
year: '2023'
...
---
_id: '47128'
author:
- first_name: Tobias
full_name: Cord-Landwehr, Tobias
id: '44393'
last_name: Cord-Landwehr
- first_name: Christoph
full_name: Boeddeker, Christoph
id: '40767'
last_name: Boeddeker
- first_name: Cătălin
full_name: Zorilă, Cătălin
last_name: Zorilă
- first_name: Rama
full_name: Doddipatla, Rama
last_name: Doddipatla
- first_name: Reinhold
full_name: Haeb-Umbach, Reinhold
id: '242'
last_name: Haeb-Umbach
citation:
ama: 'Cord-Landwehr T, Boeddeker C, Zorilă C, Doddipatla R, Haeb-Umbach R. Frame-Wise
and Overlap-Robust Speaker Embeddings for Meeting Diarization. In: ICASSP 2023
- 2023 IEEE International Conference on Acoustics, Speech and Signal Processing
(ICASSP). IEEE; 2023. doi:10.1109/icassp49357.2023.10095370'
apa: Cord-Landwehr, T., Boeddeker, C., Zorilă, C., Doddipatla, R., & Haeb-Umbach,
R. (2023). Frame-Wise and Overlap-Robust Speaker Embeddings for Meeting Diarization.
ICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech and Signal
Processing (ICASSP). 2023 IEEE International Conference on Acoustics, Speech,
and Signal Processing (ICASSP), Rhodes. https://doi.org/10.1109/icassp49357.2023.10095370
bibtex: '@inproceedings{Cord-Landwehr_Boeddeker_Zorilă_Doddipatla_Haeb-Umbach_2023,
title={Frame-Wise and Overlap-Robust Speaker Embeddings for Meeting Diarization},
DOI={10.1109/icassp49357.2023.10095370},
booktitle={ICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech
and Signal Processing (ICASSP)}, publisher={IEEE}, author={Cord-Landwehr, Tobias
and Boeddeker, Christoph and Zorilă, Cătălin and Doddipatla, Rama and Haeb-Umbach,
Reinhold}, year={2023} }'
chicago: Cord-Landwehr, Tobias, Christoph Boeddeker, Cătălin Zorilă, Rama Doddipatla,
and Reinhold Haeb-Umbach. “Frame-Wise and Overlap-Robust Speaker Embeddings for
Meeting Diarization.” In ICASSP 2023 - 2023 IEEE International Conference on
Acoustics, Speech and Signal Processing (ICASSP). IEEE, 2023. https://doi.org/10.1109/icassp49357.2023.10095370.
ieee: 'T. Cord-Landwehr, C. Boeddeker, C. Zorilă, R. Doddipatla, and R. Haeb-Umbach,
“Frame-Wise and Overlap-Robust Speaker Embeddings for Meeting Diarization,” presented
at the 2023 IEEE International Conference on Acoustics, Speech, and Signal Processing
(ICASSP), Rhodes, 2023, doi: 10.1109/icassp49357.2023.10095370.'
mla: Cord-Landwehr, Tobias, et al. “Frame-Wise and Overlap-Robust Speaker Embeddings
for Meeting Diarization.” ICASSP 2023 - 2023 IEEE International Conference
on Acoustics, Speech and Signal Processing (ICASSP), IEEE, 2023, doi:10.1109/icassp49357.2023.10095370.
short: 'T. Cord-Landwehr, C. Boeddeker, C. Zorilă, R. Doddipatla, R. Haeb-Umbach,
in: ICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech and
Signal Processing (ICASSP), IEEE, 2023.'
conference:
location: Rhodes
name: 2023 IEEE International Conference on Acoustics, Speech, and Signal Processing
(ICASSP)
date_created: 2023-09-19T14:01:20Z
date_updated: 2025-02-12T09:14:45Z
ddc:
- '000'
department:
- _id: '54'
doi: 10.1109/icassp49357.2023.10095370
file:
- access_level: open_access
content_type: application/pdf
creator: cord
date_created: 2023-11-15T14:56:18Z
date_updated: 2023-11-15T14:56:18Z
file_id: '48932'
file_name: teacher_student_embeddings.pdf
file_size: 246306
relation: main_file
file_date_updated: 2023-11-15T14:56:18Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
project:
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
- _id: '508'
grant_number: '448568305'
name: Automatische Transkription von Gesprächssituationen
publication: ICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech
and Signal Processing (ICASSP)
publication_status: published
publisher: IEEE
status: public
title: Frame-Wise and Overlap-Robust Speaker Embeddings for Meeting Diarization
type: conference
user_id: '40767'
year: '2023'
...
---
_id: '47129'
author:
- first_name: Tobias
full_name: Cord-Landwehr, Tobias
id: '44393'
last_name: Cord-Landwehr
- first_name: Christoph
full_name: Boeddeker, Christoph
id: '40767'
last_name: Boeddeker
- first_name: Cătălin
full_name: Zorilă, Cătălin
last_name: Zorilă
- first_name: Rama
full_name: Doddipatla, Rama
last_name: Doddipatla
- first_name: Reinhold
full_name: Haeb-Umbach, Reinhold
id: '242'
last_name: Haeb-Umbach
citation:
ama: 'Cord-Landwehr T, Boeddeker C, Zorilă C, Doddipatla R, Haeb-Umbach R. A Teacher-Student
Approach for Extracting Informative Speaker Embeddings From Speech Mixtures. In:
INTERSPEECH 2023. ISCA; 2023. doi:10.21437/interspeech.2023-1379'
apa: Cord-Landwehr, T., Boeddeker, C., Zorilă, C., Doddipatla, R., & Haeb-Umbach,
R. (2023). A Teacher-Student Approach for Extracting Informative Speaker Embeddings
From Speech Mixtures. INTERSPEECH 2023. https://doi.org/10.21437/interspeech.2023-1379
bibtex: '@inproceedings{Cord-Landwehr_Boeddeker_Zorilă_Doddipatla_Haeb-Umbach_2023,
title={A Teacher-Student Approach for Extracting Informative Speaker Embeddings
From Speech Mixtures}, DOI={10.21437/interspeech.2023-1379},
booktitle={INTERSPEECH 2023}, publisher={ISCA}, author={Cord-Landwehr, Tobias
and Boeddeker, Christoph and Zorilă, Cătălin and Doddipatla, Rama and Haeb-Umbach,
Reinhold}, year={2023} }'
chicago: Cord-Landwehr, Tobias, Christoph Boeddeker, Cătălin Zorilă, Rama Doddipatla,
and Reinhold Haeb-Umbach. “A Teacher-Student Approach for Extracting Informative
Speaker Embeddings From Speech Mixtures.” In INTERSPEECH 2023. ISCA, 2023.
https://doi.org/10.21437/interspeech.2023-1379.
ieee: 'T. Cord-Landwehr, C. Boeddeker, C. Zorilă, R. Doddipatla, and R. Haeb-Umbach,
“A Teacher-Student Approach for Extracting Informative Speaker Embeddings From
Speech Mixtures,” 2023, doi: 10.21437/interspeech.2023-1379.'
mla: Cord-Landwehr, Tobias, et al. “A Teacher-Student Approach for Extracting Informative
Speaker Embeddings From Speech Mixtures.” INTERSPEECH 2023, ISCA, 2023,
doi:10.21437/interspeech.2023-1379.
short: 'T. Cord-Landwehr, C. Boeddeker, C. Zorilă, R. Doddipatla, R. Haeb-Umbach,
in: INTERSPEECH 2023, ISCA, 2023.'
date_created: 2023-09-19T14:34:37Z
date_updated: 2025-02-12T09:15:28Z
ddc:
- '000'
department:
- _id: '54'
doi: 10.21437/interspeech.2023-1379
file:
- access_level: open_access
content_type: application/pdf
creator: cord
date_created: 2023-11-15T15:00:02Z
date_updated: 2023-11-15T15:00:02Z
file_id: '48933'
file_name: multispeaker_embeddings.pdf
file_size: 303203
relation: main_file
file_date_updated: 2023-11-15T15:00:02Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
project:
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
- _id: '508'
grant_number: '448568305'
name: Automatische Transkription von Gesprächssituationen
publication: INTERSPEECH 2023
publication_status: published
publisher: ISCA
status: public
title: A Teacher-Student Approach for Extracting Informative Speaker Embeddings From
Speech Mixtures
type: conference
user_id: '40767'
year: '2023'
...
---
_id: '54439'
author:
- first_name: Christoph
full_name: Boeddeker, Christoph
id: '40767'
last_name: Boeddeker
- 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: Reinhold
full_name: Haeb-Umbach, Reinhold
id: '242'
last_name: Haeb-Umbach
citation:
ama: 'Boeddeker C, Cord-Landwehr T, von Neumann T, Haeb-Umbach R. Multi-stage diarization
refinement for the CHiME-7 DASR scenario. In: 7th International Workshop on
Speech Processing in Everyday Environments (CHiME 2023). ISCA; 2023. doi:10.21437/chime.2023-10'
apa: Boeddeker, C., Cord-Landwehr, T., von Neumann, T., & Haeb-Umbach, R. (2023).
Multi-stage diarization refinement for the CHiME-7 DASR scenario. 7th International
Workshop on Speech Processing in Everyday Environments (CHiME 2023). https://doi.org/10.21437/chime.2023-10
bibtex: '@inproceedings{Boeddeker_Cord-Landwehr_von Neumann_Haeb-Umbach_2023, title={Multi-stage
diarization refinement for the CHiME-7 DASR scenario}, DOI={10.21437/chime.2023-10},
booktitle={7th International Workshop on Speech Processing in Everyday Environments
(CHiME 2023)}, publisher={ISCA}, author={Boeddeker, Christoph and Cord-Landwehr,
Tobias and von Neumann, Thilo and Haeb-Umbach, Reinhold}, year={2023} }'
chicago: Boeddeker, Christoph, Tobias Cord-Landwehr, Thilo von Neumann, and Reinhold
Haeb-Umbach. “Multi-Stage Diarization Refinement for the CHiME-7 DASR Scenario.”
In 7th International Workshop on Speech Processing in Everyday Environments
(CHiME 2023). ISCA, 2023. https://doi.org/10.21437/chime.2023-10.
ieee: 'C. Boeddeker, T. Cord-Landwehr, T. von Neumann, and R. Haeb-Umbach, “Multi-stage
diarization refinement for the CHiME-7 DASR scenario,” 2023, doi: 10.21437/chime.2023-10.'
mla: Boeddeker, Christoph, et al. “Multi-Stage Diarization Refinement for the CHiME-7
DASR Scenario.” 7th International Workshop on Speech Processing in Everyday
Environments (CHiME 2023), ISCA, 2023, doi:10.21437/chime.2023-10.
short: 'C. Boeddeker, T. Cord-Landwehr, T. von Neumann, R. Haeb-Umbach, in: 7th
International Workshop on Speech Processing in Everyday Environments (CHiME 2023),
ISCA, 2023.'
date_created: 2024-05-23T15:16:15Z
date_updated: 2025-02-12T09:16:13Z
department:
- _id: '54'
doi: 10.21437/chime.2023-10
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.isca-archive.org/chime_2023/boeddeker23_chime.pdf
oa: '1'
project:
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
- _id: '508'
grant_number: '448568305'
name: Automatische Transkription von Gesprächssituationen
publication: 7th International Workshop on Speech Processing in Everyday Environments
(CHiME 2023)
publication_status: published
publisher: ISCA
status: public
title: Multi-stage diarization refinement for the CHiME-7 DASR scenario
type: conference
user_id: '40767'
year: '2023'
...
---
_id: '48390'
author:
- first_name: Simon
full_name: Berger, Simon
last_name: Berger
- first_name: Peter
full_name: Vieting, Peter
last_name: Vieting
- first_name: Christoph
full_name: Boeddeker, Christoph
id: '40767'
last_name: Boeddeker
- first_name: Ralf
full_name: Schlüter, Ralf
last_name: Schlüter
- first_name: Reinhold
full_name: Haeb-Umbach, Reinhold
id: '242'
last_name: Haeb-Umbach
citation:
ama: 'Berger S, Vieting P, Boeddeker C, Schlüter R, Haeb-Umbach R. Mixture Encoder
for Joint Speech Separation and Recognition. In: INTERSPEECH 2023. ISCA;
2023. doi:10.21437/interspeech.2023-1815'
apa: Berger, S., Vieting, P., Boeddeker, C., Schlüter, R., & Haeb-Umbach, R.
(2023). Mixture Encoder for Joint Speech Separation and Recognition. INTERSPEECH
2023. https://doi.org/10.21437/interspeech.2023-1815
bibtex: '@inproceedings{Berger_Vieting_Boeddeker_Schlüter_Haeb-Umbach_2023, title={Mixture
Encoder for Joint Speech Separation and Recognition}, DOI={10.21437/interspeech.2023-1815},
booktitle={INTERSPEECH 2023}, publisher={ISCA}, author={Berger, Simon and Vieting,
Peter and Boeddeker, Christoph and Schlüter, Ralf and Haeb-Umbach, Reinhold},
year={2023} }'
chicago: Berger, Simon, Peter Vieting, Christoph Boeddeker, Ralf Schlüter, and Reinhold
Haeb-Umbach. “Mixture Encoder for Joint Speech Separation and Recognition.” In
INTERSPEECH 2023. ISCA, 2023. https://doi.org/10.21437/interspeech.2023-1815.
ieee: 'S. Berger, P. Vieting, C. Boeddeker, R. Schlüter, and R. Haeb-Umbach, “Mixture
Encoder for Joint Speech Separation and Recognition,” 2023, doi: 10.21437/interspeech.2023-1815.'
mla: Berger, Simon, et al. “Mixture Encoder for Joint Speech Separation and Recognition.”
INTERSPEECH 2023, ISCA, 2023, doi:10.21437/interspeech.2023-1815.
short: 'S. Berger, P. Vieting, C. Boeddeker, R. Schlüter, R. Haeb-Umbach, in: INTERSPEECH
2023, ISCA, 2023.'
date_created: 2023-10-23T15:06:39Z
date_updated: 2025-02-12T09:11:30Z
department:
- _id: '54'
doi: 10.21437/interspeech.2023-1815
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.isca-archive.org/interspeech_2023/berger23_interspeech.pdf
oa: '1'
project:
- _id: '508'
grant_number: '448568305'
name: Automatische Transkription von Gesprächssituationen
publication: INTERSPEECH 2023
publication_status: published
publisher: ISCA
status: public
title: Mixture Encoder for Joint Speech Separation and Recognition
type: conference
user_id: '40767'
year: '2023'
...
---
_id: '47009'
abstract:
- lang: eng
text: We present a fully integrated radio frequency identifications transponder
chip operating at 5.8 GHz, which is compatible with the class-1 generation-2 of
the Electronic Product Code protocol (EPC-C1 G2). The tag chip including the analog
front-end and the digital baseband processor, are designed in the sub-threshold
regime (0.5 V) with a total supply current of less than 50 μA. As a power scavenging
unit, a single-stage differential-drive rectifier structure is designed and fabricated
with standard threshold voltage (SVT) MOS elements in a commercial 65-nm CMOS
process, to provide 0.8 V of rectified voltage. Measurements performed on the
fabricated single-stage structure show a maximum power conversion efficiency of
69.6% for a 22 kΩ load and a sensitivity of -12.5 dBm, which corresponds to more
than 1 m of reading range. The power conversion efficiency at this range is about
64%.
author:
- first_name: Sanaz
full_name: Haddadian, Sanaz
id: '59648'
last_name: Haddadian
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: '0000-0002-5950-6618 '
- first_name: Gerd
full_name: von Bögel, Gerd
last_name: von Bögel
- first_name: Thorben
full_name: Grenter, Thorben
last_name: Grenter
citation:
ama: Haddadian S, Scheytt JC, von Bögel G, Grenter T. A Sub-Threshold Microwave
RFID Tag Chip, Compatible With RFID MIMO Reader Technology. IEEE Journal of
Radio Frequency Identification. Published online 2023. doi:10.1109/JRFID.2023.3308332
apa: Haddadian, S., Scheytt, J. C., von Bögel, G., & Grenter, T. (2023). A Sub-Threshold
Microwave RFID Tag Chip, Compatible With RFID MIMO Reader Technology. IEEE
Journal of Radio Frequency Identification. https://doi.org/10.1109/JRFID.2023.3308332
bibtex: '@article{Haddadian_Scheytt_von Bögel_Grenter_2023, title={A Sub-Threshold
Microwave RFID Tag Chip, Compatible With RFID MIMO Reader Technology}, DOI={10.1109/JRFID.2023.3308332},
journal={ IEEE Journal of Radio Frequency Identification}, publisher={IEEE}, author={Haddadian,
Sanaz and Scheytt, J. Christoph and von Bögel, Gerd and Grenter, Thorben}, year={2023}
}'
chicago: Haddadian, Sanaz, J. Christoph Scheytt, Gerd von Bögel, and Thorben Grenter.
“A Sub-Threshold Microwave RFID Tag Chip, Compatible With RFID MIMO Reader Technology.”
IEEE Journal of Radio Frequency Identification, 2023. https://doi.org/10.1109/JRFID.2023.3308332.
ieee: 'S. Haddadian, J. C. Scheytt, G. von Bögel, and T. Grenter, “A Sub-Threshold
Microwave RFID Tag Chip, Compatible With RFID MIMO Reader Technology,” IEEE
Journal of Radio Frequency Identification, 2023, doi: 10.1109/JRFID.2023.3308332.'
mla: Haddadian, Sanaz, et al. “A Sub-Threshold Microwave RFID Tag Chip, Compatible
With RFID MIMO Reader Technology.” IEEE Journal of Radio Frequency Identification,
IEEE, 2023, doi:10.1109/JRFID.2023.3308332.
short: S. Haddadian, J.C. Scheytt, G. von Bögel, T. Grenter, IEEE Journal of Radio
Frequency Identification (2023).
conference:
start_date: 2023-08-29
date_created: 2023-09-13T11:08:22Z
date_updated: 2025-02-13T14:24:24Z
department:
- _id: '58'
doi: 10.1109/JRFID.2023.3308332
language:
- iso: eng
publication: ' IEEE Journal of Radio Frequency Identification'
publication_identifier:
eissn:
- 2469-7281
publication_status: published
publisher: IEEE
status: public
title: A Sub-Threshold Microwave RFID Tag Chip, Compatible With RFID MIMO Reader Technology
type: journal_article
user_id: '59648'
year: '2023'
...
---
_id: '58680'
abstract:
- lang: eng
text: 'Heutige On-Board-Ladewandler sind typischerweise aus zwei Stufen aufgebaut,
die über einen Spannungszwischenkreis verbunden sind. Als erste Stufe kommt ein
PFC-Gleichrichter zum Einsatz, der die Anforderungen an den Netzstrom bezüglich
Oberschwingungsgehalt und Leistungsfaktor sicherstellt. Für die zweite Wandler-Stufe
hat sich in den vergangenen Jahren ein LLC-Resonanzwandler qualifiziert, der die
Ladeleistung an die Traktionsbatterie galvanisch getrennt überträgt. Der Zwischenkreis
besteht aus einer Bank von Elektrolytkondensatoren, in denen die pulsierende Eingangsleistung
zwischengespeichert wird. Die Kondensatoren machen einen erheblichen Teil des
Lader-Volumens aus und altern schnell, was insbesondere für Ladewandler an Bord
von Elektrofahrzeugen unerwünscht ist. In der vorliegenden Arbeit wird untersucht,
ob diese zweistufige Struktur verworfen werden kann, indem der LLC-Resonanzwandler
direkt an die gleichgerichtete Netzspannung angeschlossen wird.Zum Einsatz des
LLC-Resonanzwandlers als einstufiger Ladewandler ist die Schaltung für einen großen
Strom- und Spannungsbereich auszulegen. Hierfür wird in der vorliegenden Arbeit
eine erweiterte Zeitbereichsanalyse erarbeitet, deren hohe Modellierungsgenauigkeit
im Anschluss experimentell nachgewiesen wird. Mit Hilfe dieser Zeitbereichsanalyse
werden die Belastungsgrößen des Resonanzwandlers berechnet, um hiermit eine Vorauswahl
der Schaltungsparameter treffen zu können. Darauf aufbauend erfolgt die Optimierung
des integrierten Transformators als Schlüsselkomponente des Ladewandlers sowie
dessen prototypische Realisierung. Abschließend wird mittels Prototypen die erzielbare
Leistungsdichte ermittelt. Ergebnis: Verglichen mit etablierten Ladewandlern der
heutigen Elektrofahrzeuge konnte durch den einstufigen Ansatz die Leistungsdichte
um ca. 53% gesteigert werden.'
- lang: eng
text: 'Today''s on-board chargers of electric vehicles typically consist of two
stages which are connected via a voltage DC link. A PFC rectifier is used as the
first stage which ensures that the requirements for the mains current are met
with respect to harmonic content and power factor. For the second converter stage,
an LLC resonant converter has qualified in recent years which transmits the charging
power to the traction battery in a galvanically isolated manner. The DC link consists
of a bank of electrolytic capacitors in which the pulsating input power is buffered.
The capacitors occupy a large portion of the charger volume and age rapidly, which
is particularly undesirable for on-board chargers in electric vehicles. In the
presented work, it is investigated whether this two-stage structure can be discarded
by connecting the LLC resonant converter directly to the rectified line voltage.To
use the LLC resonant converter as a single-stage charger, the circuit must be
designed for a wide current and voltage range. For this purpose, an extended time-domain
analysis is developed in this thesis, whose high modeling accuracy is subsequently
demonstrated experimentally. With the help of this time domain analysis, the stress
variables of the resonant converter are calculated in order to be able to make
a preselection of the circuit parameters. Based on this, the optimization of the
integrated transformer as a key component of the charger is carried out as well
as its prototypical realization. Finally, the achievable power density is determined
by means of prototypes. Result: Compared to established on-board chargers of today''s
electric vehicles, the single-stage approach increased the power density by about
53%.'
author:
- first_name: Lukas
full_name: Keuck, Lukas
id: '42519'
last_name: Keuck
citation:
ama: Keuck L. Entwurf Eines Einstufigen Ladewandlers Auf Basis Eines LLC-Resonanzwandlers.
LibreCat University; 2023. doi:10.17619/UNIPB/1-1727
apa: Keuck, L. (2023). Entwurf eines einstufigen Ladewandlers auf Basis eines
LLC-Resonanzwandlers. LibreCat University. https://doi.org/10.17619/UNIPB/1-1727
bibtex: '@book{Keuck_2023, title={Entwurf eines einstufigen Ladewandlers auf Basis
eines LLC-Resonanzwandlers}, DOI={10.17619/UNIPB/1-1727},
publisher={LibreCat University}, author={Keuck, Lukas}, year={2023} }'
chicago: Keuck, Lukas. Entwurf Eines Einstufigen Ladewandlers Auf Basis Eines
LLC-Resonanzwandlers. LibreCat University, 2023. https://doi.org/10.17619/UNIPB/1-1727.
ieee: L. Keuck, Entwurf eines einstufigen Ladewandlers auf Basis eines LLC-Resonanzwandlers.
LibreCat University, 2023.
mla: Keuck, Lukas. Entwurf Eines Einstufigen Ladewandlers Auf Basis Eines LLC-Resonanzwandlers.
LibreCat University, 2023, doi:10.17619/UNIPB/1-1727.
short: L. Keuck, Entwurf Eines Einstufigen Ladewandlers Auf Basis Eines LLC-Resonanzwandlers,
LibreCat University, 2023.
date_created: 2025-02-18T09:05:22Z
date_updated: 2025-02-18T09:06:48Z
department:
- _id: '52'
doi: 10.17619/UNIPB/1-1727
language:
- iso: eng
publisher: LibreCat University
status: public
title: Entwurf eines einstufigen Ladewandlers auf Basis eines LLC-Resonanzwandlers
type: dissertation
user_id: '71353'
year: '2023'
...
---
_id: '58723'
abstract:
- lang: eng
text: In real-world debates, the most common way to counter an argument is to reason
against its main point, that is, its conclusion. Existing work on the automatic
generation of natural language counter-arguments does not address the relation
to the conclusion, possibly because many arguments leave their conclusion implicit.
In this paper, we hypothesize that the key to effective counter-argument generation
is to explicitly model the argument‘s conclusion and to ensure that the stance
of the generated counter is opposite to that conclusion. In particular, we propose
a multitask approach that jointly learns to generate both the conclusion and the
counter of an input argument. The approach employs a stance-based ranking component
that selects the counter from a diverse set of generated candidates whose stance
best opposes the generated conclusion. In both automatic and manual evaluation,
we provide evidence that our approach generates more relevant and stance-adhering
counters than strong baselines.
author:
- first_name: Milad
full_name: Alshomary, Milad
id: '73059'
last_name: Alshomary
- first_name: Henning
full_name: Wachsmuth, Henning
id: '3900'
last_name: Wachsmuth
citation:
ama: 'Alshomary M, Wachsmuth H. Conclusion-based Counter-Argument Generation. In:
Vlachos A, Augenstein I, eds. Proceedings of the 17th Conference of the European
Chapter of the Association for Computational Linguistics. Association for
Computational Linguistics; 2023:957–967. doi:10.18653/v1/2023.eacl-main.67'
apa: Alshomary, M., & Wachsmuth, H. (2023). Conclusion-based Counter-Argument
Generation. In A. Vlachos & I. Augenstein (Eds.), Proceedings of the 17th
Conference of the European Chapter of the Association for Computational Linguistics
(pp. 957–967). Association for Computational Linguistics. https://doi.org/10.18653/v1/2023.eacl-main.67
bibtex: '@inproceedings{Alshomary_Wachsmuth_2023, place={Dubrovnik, Croatia}, title={Conclusion-based
Counter-Argument Generation}, DOI={10.18653/v1/2023.eacl-main.67},
booktitle={Proceedings of the 17th Conference of the European Chapter of the Association
for Computational Linguistics}, publisher={Association for Computational Linguistics},
author={Alshomary, Milad and Wachsmuth, Henning}, editor={Vlachos, Andreas and
Augenstein, Isabelle}, year={2023}, pages={957–967} }'
chicago: 'Alshomary, Milad, and Henning Wachsmuth. “Conclusion-Based Counter-Argument
Generation.” In Proceedings of the 17th Conference of the European Chapter
of the Association for Computational Linguistics, edited by Andreas Vlachos
and Isabelle Augenstein, 957–967. Dubrovnik, Croatia: Association for Computational
Linguistics, 2023. https://doi.org/10.18653/v1/2023.eacl-main.67.'
ieee: 'M. Alshomary and H. Wachsmuth, “Conclusion-based Counter-Argument Generation,”
in Proceedings of the 17th Conference of the European Chapter of the Association
for Computational Linguistics, 2023, pp. 957–967, doi: 10.18653/v1/2023.eacl-main.67.'
mla: Alshomary, Milad, and Henning Wachsmuth. “Conclusion-Based Counter-Argument
Generation.” Proceedings of the 17th Conference of the European Chapter of
the Association for Computational Linguistics, edited by Andreas Vlachos and
Isabelle Augenstein, Association for Computational Linguistics, 2023, pp. 957–967,
doi:10.18653/v1/2023.eacl-main.67.
short: 'M. Alshomary, H. Wachsmuth, in: A. Vlachos, I. Augenstein (Eds.), Proceedings
of the 17th Conference of the European Chapter of the Association for Computational
Linguistics, Association for Computational Linguistics, Dubrovnik, Croatia, 2023,
pp. 957–967.'
date_created: 2025-02-20T08:20:35Z
date_updated: 2025-02-20T08:21:41Z
department:
- _id: '600'
- _id: '660'
doi: 10.18653/v1/2023.eacl-main.67
editor:
- first_name: Andreas
full_name: Vlachos, Andreas
last_name: Vlachos
- first_name: Isabelle
full_name: Augenstein, Isabelle
last_name: Augenstein
language:
- iso: eng
page: 957–967
place: Dubrovnik, Croatia
project:
- _id: '118'
name: 'TRR 318 - INF: TRR 318 - Project Area INF'
publication: Proceedings of the 17th Conference of the European Chapter of the Association
for Computational Linguistics
publisher: Association for Computational Linguistics
status: public
title: Conclusion-based Counter-Argument Generation
type: conference
user_id: '3900'
year: '2023'
...
---
_id: '46426'
abstract:
- lang: eng
text: 'One of the main challenges for next generation automotive radars is the improvement
of angular resolution to a sub-degree level. In this context, wide aperture automotive
radars of 1m length or more and resolution close to 0.1° in azimuth and 0.5° in
elevation could be beneficial. To enable coherent processing of arrays with such
large aperture, prior (i.e offline) and online calibration are necessary: channel
imbalances (gains and phases) and three dimensional coordinates of transmit and
receive elements need to be determined. We propose a calibration strategy based
on alternating steps between the two subtasks of i) channel imbalance estimation
with ‘known’ array positions, by applying a singular value decomposition to the
resulting tensor calculus problem; and ii) antenna position estimation with ’known’
channel imbalances, by numerically maximizing the Bayesian posterior probability;
in both cases operating on range/Doppler snapshots of disjoint targets (with potentially
unknown locations). Simulation studies based on the parameters of a MIMO 8x6 linear
sparse array show promising results as long as the initial position errors do
not exceed half a wavelength (2mm), beyond which we observe strong effects of
ambiguity. Experimental results with real measurements show that after calibration
in laboratory conditions, our MIMO 8x6 demonstrator with 50cm aperture is able
to resolve two targets at the same range with angular separation at least as close
as 0.4°.'
author:
- first_name: 'Christian '
full_name: 'Greiff, Christian '
last_name: Greiff
- first_name: David
full_name: Mateos-Núñez, David
last_name: Mateos-Núñez
- first_name: Renato
full_name: Simoni, Renato
last_name: Simoni
- first_name: Maria
full_name: González-Huici, Maria
last_name: González-Huici
- first_name: Stephan
full_name: Kruse, Stephan
id: '38254'
last_name: Kruse
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: '0000-0002-5950-6618 '
- first_name: Karl
full_name: Kolk, Karl
last_name: Kolk
- first_name: Christian
full_name: Höller, Christian
last_name: Höller
- first_name: Heiko Gustav
full_name: Kurz, Heiko Gustav
last_name: Kurz
- first_name: Marc-Michael
full_name: Meinecke, Marc-Michael
last_name: Meinecke
- first_name: Thomas
full_name: Gisder, Thomas
last_name: Gisder
citation:
ama: 'Greiff C, Mateos-Núñez D, Simoni R, et al. Calibration of Large Coherent MIMO
Radar Arrays: Channel Imbalances and 3D Antenna Positions. In: 2023 24th International
Radar Symposium (IRS). IEEE; 2023. doi:10.23919/IRS57608.2023.10172475'
apa: 'Greiff, C., Mateos-Núñez, D., Simoni, R., González-Huici, M., Kruse, S., Scheytt,
J. C., Kolk, K., Höller, C., Kurz, H. G., Meinecke, M.-M., & Gisder, T. (2023).
Calibration of Large Coherent MIMO Radar Arrays: Channel Imbalances and 3D Antenna
Positions. 2023 24th International Radar Symposium (IRS). 2023 24th International
Radar Symposium (IRS), Berlin, Germany. https://doi.org/10.23919/IRS57608.2023.10172475'
bibtex: '@inproceedings{Greiff_Mateos-Núñez_Simoni_González-Huici_Kruse_Scheytt_Kolk_Höller_Kurz_Meinecke_et
al._2023, title={Calibration of Large Coherent MIMO Radar Arrays: Channel Imbalances
and 3D Antenna Positions}, DOI={10.23919/IRS57608.2023.10172475},
booktitle={2023 24th International Radar Symposium (IRS)}, publisher={IEEE}, author={Greiff,
Christian and Mateos-Núñez, David and Simoni, Renato and González-Huici, Maria
and Kruse, Stephan and Scheytt, J. Christoph and Kolk, Karl and Höller, Christian
and Kurz, Heiko Gustav and Meinecke, Marc-Michael and et al.}, year={2023} }'
chicago: 'Greiff, Christian , David Mateos-Núñez, Renato Simoni, Maria González-Huici,
Stephan Kruse, J. Christoph Scheytt, Karl Kolk, et al. “Calibration of Large Coherent
MIMO Radar Arrays: Channel Imbalances and 3D Antenna Positions.” In 2023 24th
International Radar Symposium (IRS). IEEE, 2023. https://doi.org/10.23919/IRS57608.2023.10172475.'
ieee: 'C. Greiff et al., “Calibration of Large Coherent MIMO Radar Arrays:
Channel Imbalances and 3D Antenna Positions,” presented at the 2023 24th International
Radar Symposium (IRS), Berlin, Germany, 2023, doi: 10.23919/IRS57608.2023.10172475.'
mla: 'Greiff, Christian, et al. “Calibration of Large Coherent MIMO Radar Arrays:
Channel Imbalances and 3D Antenna Positions.” 2023 24th International Radar
Symposium (IRS), IEEE, 2023, doi:10.23919/IRS57608.2023.10172475.'
short: 'C. Greiff, D. Mateos-Núñez, R. Simoni, M. González-Huici, S. Kruse, J.C.
Scheytt, K. Kolk, C. Höller, H.G. Kurz, M.-M. Meinecke, T. Gisder, in: 2023 24th
International Radar Symposium (IRS), IEEE, 2023.'
conference:
end_date: 2023.05.26
location: Berlin, Germany
name: 2023 24th International Radar Symposium (IRS)
start_date: 2023.05.24
date_created: 2023-08-07T06:45:11Z
date_updated: 2025-02-25T05:52:16Z
department:
- _id: '58'
doi: 10.23919/IRS57608.2023.10172475
language:
- iso: eng
publication: 2023 24th International Radar Symposium (IRS)
publication_identifier:
eisbn:
- 978-3-944976-34-1
publisher: IEEE
status: public
title: 'Calibration of Large Coherent MIMO Radar Arrays: Channel Imbalances and 3D
Antenna Positions'
type: conference
user_id: '38254'
year: '2023'
...
---
_id: '42800'
abstract:
- lang: eng
text: In this paper we present a new system architecture for software-defined radio
/ radar with optical signal distribution. The proposed architecture allows to
transmit the optical carrier and an arbitrary IQ signal on the same fiber from
a base station to wireless transmitters using a single laser. Furthermore, we
can reuse parts, and under special conditions, also the complete optical output
of the base station for the IQ return path from the wireless receiver frontends
to the base station. Avoiding multiple lasers and fibers for the distribution
of the carrier and arbitrary signal from the base station to the frontend, and
avoiding the laser diode for the IQ return path from receiver frontends to the
base station reduces the hardware effort significantly. Finally, the system architecture
allows to integrate all components of the optoelectronic wireless frontend in
a single chip using silicon photonics technology.
author:
- first_name: Stephan
full_name: Kruse, Stephan
id: '38254'
last_name: Kruse
- first_name: Pascal
full_name: Kneuper, Pascal
id: '47367'
last_name: Kneuper
- first_name: Tobias
full_name: Schwabe, Tobias
id: '39217'
last_name: Schwabe
- first_name: Marc-Michael
full_name: Meinecke, Marc-Michael
last_name: Meinecke
- first_name: Heiko G.
full_name: Kurz, Heiko G.
last_name: Kurz
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: https://orcid.org/0000-0002-5950-6618
citation:
ama: 'Kruse S, Kneuper P, Schwabe T, Meinecke M-M, Kurz HG, Scheytt JC. Distributed
System Architecture for Software-Defined Radio / Radar with Optical Signal Distribution.
In: ; 2023. doi:10.23919/IRS57608.2023.10172470'
apa: Kruse, S., Kneuper, P., Schwabe, T., Meinecke, M.-M., Kurz, H. G., & Scheytt,
J. C. (2023). Distributed System Architecture for Software-Defined Radio /
Radar with Optical Signal Distribution. INTERNATIONAL RADAR SYMPOSIUM (IRS
2023), Fraunhofer-Forum Berlin, Germany. https://doi.org/10.23919/IRS57608.2023.10172470
bibtex: '@inproceedings{Kruse_Kneuper_Schwabe_Meinecke_Kurz_Scheytt_2023, title={Distributed
System Architecture for Software-Defined Radio / Radar with Optical Signal Distribution},
DOI={10.23919/IRS57608.2023.10172470},
author={Kruse, Stephan and Kneuper, Pascal and Schwabe, Tobias and Meinecke, Marc-Michael
and Kurz, Heiko G. and Scheytt, J. Christoph}, year={2023} }'
chicago: Kruse, Stephan, Pascal Kneuper, Tobias Schwabe, Marc-Michael Meinecke,
Heiko G. Kurz, and J. Christoph Scheytt. “Distributed System Architecture for
Software-Defined Radio / Radar with Optical Signal Distribution,” 2023. https://doi.org/10.23919/IRS57608.2023.10172470.
ieee: 'S. Kruse, P. Kneuper, T. Schwabe, M.-M. Meinecke, H. G. Kurz, and J. C. Scheytt,
“Distributed System Architecture for Software-Defined Radio / Radar with Optical
Signal Distribution,” presented at the INTERNATIONAL RADAR SYMPOSIUM (IRS 2023),
Fraunhofer-Forum Berlin, Germany, 2023, doi: 10.23919/IRS57608.2023.10172470.'
mla: Kruse, Stephan, et al. Distributed System Architecture for Software-Defined
Radio / Radar with Optical Signal Distribution. 2023, doi:10.23919/IRS57608.2023.10172470.
short: 'S. Kruse, P. Kneuper, T. Schwabe, M.-M. Meinecke, H.G. Kurz, J.C. Scheytt,
in: 2023.'
conference:
end_date: 2023.05.26
location: Fraunhofer-Forum Berlin, Germany
name: INTERNATIONAL RADAR SYMPOSIUM (IRS 2023)
start_date: 2023.05.24
date_created: 2023-03-07T08:50:56Z
date_updated: 2025-02-25T05:51:15Z
department:
- _id: '58'
- _id: '230'
doi: 10.23919/IRS57608.2023.10172470
language:
- iso: eng
status: public
title: Distributed System Architecture for Software-Defined Radio / Radar with Optical
Signal Distribution
type: conference
user_id: '38254'
year: '2023'
...
---
_id: '47124'
author:
- first_name: Stephan
full_name: Kruse, Stephan
id: '38254'
last_name: Kruse
- first_name: Marc-Michael
full_name: Meinecke, Marc-Michael
last_name: Meinecke
- first_name: Pascal
full_name: Kneuper, Pascal
id: '47367'
last_name: Kneuper
- first_name: Tobias
full_name: Schwabe, Tobias
id: '39217'
last_name: Schwabe
- first_name: Heiko G.
full_name: Kurz, Heiko G.
last_name: Kurz
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: '0000-0002-5950-6618 '
citation:
ama: 'Kruse S, Meinecke M-M, Kneuper P, Schwabe T, Kurz HG, Scheytt JC. Analysis
and Simulation of a Coherent FMCW Lidar-Photonic Radar Combined Sensor System
for Large Aperture Phased Array MIMO. In: 2023 20th European Radar Conference
(EuRAD). ; 2023. doi:10.23919/EuRAD58043.2023.10289439'
apa: Kruse, S., Meinecke, M.-M., Kneuper, P., Schwabe, T., Kurz, H. G., & Scheytt,
J. C. (2023). Analysis and Simulation of a Coherent FMCW Lidar-Photonic Radar
Combined Sensor System for Large Aperture Phased Array MIMO. 2023 20th European
Radar Conference (EuRAD). https://doi.org/10.23919/EuRAD58043.2023.10289439
bibtex: '@inproceedings{Kruse_Meinecke_Kneuper_Schwabe_Kurz_Scheytt_2023, title={Analysis
and Simulation of a Coherent FMCW Lidar-Photonic Radar Combined Sensor System
for Large Aperture Phased Array MIMO}, DOI={10.23919/EuRAD58043.2023.10289439},
booktitle={2023 20th European Radar Conference (EuRAD)}, author={Kruse, Stephan
and Meinecke, Marc-Michael and Kneuper, Pascal and Schwabe, Tobias and Kurz, Heiko
G. and Scheytt, J. Christoph}, year={2023} }'
chicago: Kruse, Stephan, Marc-Michael Meinecke, Pascal Kneuper, Tobias Schwabe,
Heiko G. Kurz, and J. Christoph Scheytt. “Analysis and Simulation of a Coherent
FMCW Lidar-Photonic Radar Combined Sensor System for Large Aperture Phased Array
MIMO.” In 2023 20th European Radar Conference (EuRAD), 2023. https://doi.org/10.23919/EuRAD58043.2023.10289439.
ieee: 'S. Kruse, M.-M. Meinecke, P. Kneuper, T. Schwabe, H. G. Kurz, and J. C. Scheytt,
“Analysis and Simulation of a Coherent FMCW Lidar-Photonic Radar Combined Sensor
System for Large Aperture Phased Array MIMO,” Berlin, 2023, doi: 10.23919/EuRAD58043.2023.10289439.'
mla: Kruse, Stephan, et al. “Analysis and Simulation of a Coherent FMCW Lidar-Photonic
Radar Combined Sensor System for Large Aperture Phased Array MIMO.” 2023 20th
European Radar Conference (EuRAD), 2023, doi:10.23919/EuRAD58043.2023.10289439.
short: 'S. Kruse, M.-M. Meinecke, P. Kneuper, T. Schwabe, H.G. Kurz, J.C. Scheytt,
in: 2023 20th European Radar Conference (EuRAD), 2023.'
conference:
end_date: 2023-09-22
location: Berlin
start_date: 2023-09-20
date_created: 2023-09-19T06:46:12Z
date_updated: 2025-02-25T05:51:57Z
department:
- _id: '58'
doi: 10.23919/EuRAD58043.2023.10289439
language:
- iso: eng
publication: 2023 20th European Radar Conference (EuRAD)
status: public
title: Analysis and Simulation of a Coherent FMCW Lidar-Photonic Radar Combined Sensor
System for Large Aperture Phased Array MIMO
type: conference
user_id: '38254'
year: '2023'
...
---
_id: '47126'
author:
- first_name: Stephan
full_name: Kruse, Stephan
id: '38254'
last_name: Kruse
- first_name: Jan C.
full_name: Greitens, Jan C.
last_name: Greitens
- first_name: Tobias
full_name: Schwabe, Tobias
id: '39217'
last_name: Schwabe
- first_name: Pascal
full_name: Kneuper, Pascal
id: '47367'
last_name: Kneuper
- first_name: Heiko G.
full_name: Kurz, Heiko G.
last_name: Kurz
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: '0000-0002-5950-6618 '
citation:
ama: Kruse S, Greitens JC, Schwabe T, Kneuper P, Kurz HG, Scheytt JC. A Narrowband
Four-Quadrant Electro-Optical Mixer for Microwave Photonics. IEEE Microwave
and Wireless Technology Letters . Published online 2023. doi:10.1109/LMWT.2023.3315315
apa: Kruse, S., Greitens, J. C., Schwabe, T., Kneuper, P., Kurz, H. G., & Scheytt,
J. C. (2023). A Narrowband Four-Quadrant Electro-Optical Mixer for Microwave Photonics.
IEEE Microwave and Wireless Technology Letters . https://doi.org/10.1109/LMWT.2023.3315315
bibtex: '@article{Kruse_Greitens_Schwabe_Kneuper_Kurz_Scheytt_2023, title={A Narrowband
Four-Quadrant Electro-Optical Mixer for Microwave Photonics}, DOI={10.1109/LMWT.2023.3315315},
journal={IEEE Microwave and Wireless Technology Letters }, author={Kruse, Stephan
and Greitens, Jan C. and Schwabe, Tobias and Kneuper, Pascal and Kurz, Heiko G.
and Scheytt, J. Christoph}, year={2023} }'
chicago: Kruse, Stephan, Jan C. Greitens, Tobias Schwabe, Pascal Kneuper, Heiko
G. Kurz, and J. Christoph Scheytt. “A Narrowband Four-Quadrant Electro-Optical
Mixer for Microwave Photonics.” IEEE Microwave and Wireless Technology Letters
, 2023. https://doi.org/10.1109/LMWT.2023.3315315.
ieee: 'S. Kruse, J. C. Greitens, T. Schwabe, P. Kneuper, H. G. Kurz, and J. C. Scheytt,
“A Narrowband Four-Quadrant Electro-Optical Mixer for Microwave Photonics,” IEEE
Microwave and Wireless Technology Letters , 2023, doi: 10.1109/LMWT.2023.3315315.'
mla: Kruse, Stephan, et al. “A Narrowband Four-Quadrant Electro-Optical Mixer for
Microwave Photonics.” IEEE Microwave and Wireless Technology Letters ,
2023, doi:10.1109/LMWT.2023.3315315.
short: S. Kruse, J.C. Greitens, T. Schwabe, P. Kneuper, H.G. Kurz, J.C. Scheytt,
IEEE Microwave and Wireless Technology Letters (2023).
date_created: 2023-09-19T06:57:57Z
date_updated: 2025-02-25T05:42:19Z
department:
- _id: '58'
- _id: '230'
doi: 10.1109/LMWT.2023.3315315
language:
- iso: eng
publication: 'IEEE Microwave and Wireless Technology Letters '
status: public
title: A Narrowband Four-Quadrant Electro-Optical Mixer for Microwave Photonics
type: journal_article
user_id: '38254'
year: '2023'
...
---
_id: '42804'
abstract:
- lang: eng
text: "This paper presents a method to model monolithically integrated photonic
radar transceiver (TRX) with optical local oscillator (LO) distribution in silicon
germanium (SiGe) electronic photonic integrated circuits (EPICs). The model proposed
approximates the behavior of the nonlinear scattering (S)-parameters and noise
figure of each building block of the TRX chipset by Laplace polynomials and hyperbolic
tangent functions. The modular approach of the model allows to optimize hardware
components with respect to the entire TRX system, and fault identification with
reduced computational effort.\r\nThe proposed method is validated using the first
monolithically integrated photonic radar transceiver chipset and shows excellent
agreement with the post layout simulation results and, including the photodiode
(PD) bandwidth (BW) degradation, also with the measurements.\r\n"
author:
- first_name: Stephan
full_name: Kruse, Stephan
id: '38254'
last_name: Kruse
- first_name: Tobias
full_name: Schwabe, Tobias
id: '39217'
last_name: Schwabe
- first_name: Pascal
full_name: Kneuper, Pascal
id: '47367'
last_name: Kneuper
- first_name: Marc-Michael
full_name: Meinecke, Marc-Michael
last_name: Meinecke
- first_name: Heiko G.
full_name: Kurz, Heiko G.
last_name: Kurz
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: https://orcid.org/0000-0002-5950-6618
citation:
ama: 'Kruse S, Schwabe T, Kneuper P, Meinecke M-M, Kurz HG, Scheytt JC. Nonlinear
S-Parameter Behavioral Model of a Photonic Radar Transceiver Chipset for Automotive
Applications. In: ; 2023. doi:10.23919/IRS57608.2023.10172395'
apa: Kruse, S., Schwabe, T., Kneuper, P., Meinecke, M.-M., Kurz, H. G., & Scheytt,
J. C. (2023). Nonlinear S-Parameter Behavioral Model of a Photonic Radar Transceiver
Chipset for Automotive Applications. INTERNATIONAL RADAR SYMPOSIUM (IRS 2023),
Fraunhofer-Forum Berlin, Germany. https://doi.org/10.23919/IRS57608.2023.10172395
bibtex: '@inproceedings{Kruse_Schwabe_Kneuper_Meinecke_Kurz_Scheytt_2023, title={Nonlinear
S-Parameter Behavioral Model of a Photonic Radar Transceiver Chipset for Automotive
Applications}, DOI={10.23919/IRS57608.2023.10172395},
author={Kruse, Stephan and Schwabe, Tobias and Kneuper, Pascal and Meinecke, Marc-Michael
and Kurz, Heiko G. and Scheytt, J. Christoph}, year={2023} }'
chicago: Kruse, Stephan, Tobias Schwabe, Pascal Kneuper, Marc-Michael Meinecke,
Heiko G. Kurz, and J. Christoph Scheytt. “Nonlinear S-Parameter Behavioral Model
of a Photonic Radar Transceiver Chipset for Automotive Applications,” 2023. https://doi.org/10.23919/IRS57608.2023.10172395.
ieee: 'S. Kruse, T. Schwabe, P. Kneuper, M.-M. Meinecke, H. G. Kurz, and J. C. Scheytt,
“Nonlinear S-Parameter Behavioral Model of a Photonic Radar Transceiver Chipset
for Automotive Applications,” presented at the INTERNATIONAL RADAR SYMPOSIUM (IRS
2023), Fraunhofer-Forum Berlin, Germany, 2023, doi: 10.23919/IRS57608.2023.10172395.'
mla: Kruse, Stephan, et al. Nonlinear S-Parameter Behavioral Model of a Photonic
Radar Transceiver Chipset for Automotive Applications. 2023, doi:10.23919/IRS57608.2023.10172395.
short: 'S. Kruse, T. Schwabe, P. Kneuper, M.-M. Meinecke, H.G. Kurz, J.C. Scheytt,
in: 2023.'
conference:
end_date: 2023.05.26
location: Fraunhofer-Forum Berlin, Germany
name: INTERNATIONAL RADAR SYMPOSIUM (IRS 2023)
start_date: 2023.05.24
date_created: 2023-03-07T08:55:33Z
date_updated: 2025-02-25T05:53:22Z
department:
- _id: '58'
- _id: '230'
doi: 10.23919/IRS57608.2023.10172395
language:
- iso: eng
status: public
title: Nonlinear S-Parameter Behavioral Model of a Photonic Radar Transceiver Chipset
for Automotive Applications
type: conference
user_id: '38254'
year: '2023'
...
---
_id: '47064'
author:
- first_name: Mohammed
full_name: Iftekhar, Mohammed
id: '47944'
last_name: Iftekhar
- first_name: Harshan
full_name: Nagaraju, Harshan
last_name: Nagaraju
- first_name: Pascal
full_name: Kneuper, Pascal
id: '47367'
last_name: Kneuper
- first_name: Babak
full_name: Sadiye, Babak
id: '93634'
last_name: Sadiye
- first_name: Wolfgang
full_name: Müller, Wolfgang
id: '16243'
last_name: Müller
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: '0000-0002-5950-6618 '
citation:
ama: 'Iftekhar M, Nagaraju H, Kneuper P, Sadiye B, Müller W, Scheytt JC. A 28-Gb/s
27.2 mW NRZ Full-Rate Bang-Bang Clock and Data Recovery in 22 nm FD-SOI CMOS Technology
. In: BCICTS 2023 IEEE BiCMOS and Compound Semiconductor Integrated Circuits
and Technology Symposium. ; 2023.'
apa: Iftekhar, M., Nagaraju, H., Kneuper, P., Sadiye, B., Müller, W., & Scheytt,
J. C. (2023). A 28-Gb/s 27.2 mW NRZ Full-Rate Bang-Bang Clock and Data Recovery
in 22 nm FD-SOI CMOS Technology . BCICTS 2023 IEEE BiCMOS and Compound Semiconductor
Integrated Circuits and Technology Symposium.
bibtex: '@inproceedings{Iftekhar_Nagaraju_Kneuper_Sadiye_Müller_Scheytt_2023, title={A
28-Gb/s 27.2 mW NRZ Full-Rate Bang-Bang Clock and Data Recovery in 22 nm FD-SOI
CMOS Technology }, booktitle={BCICTS 2023 IEEE BiCMOS and Compound Semiconductor
Integrated Circuits and Technology Symposium}, author={Iftekhar, Mohammed and
Nagaraju, Harshan and Kneuper, Pascal and Sadiye, Babak and Müller, Wolfgang and
Scheytt, J. Christoph}, year={2023} }'
chicago: Iftekhar, Mohammed, Harshan Nagaraju, Pascal Kneuper, Babak Sadiye, Wolfgang
Müller, and J. Christoph Scheytt. “A 28-Gb/s 27.2 MW NRZ Full-Rate Bang-Bang Clock
and Data Recovery in 22 Nm FD-SOI CMOS Technology .” In BCICTS 2023 IEEE BiCMOS
and Compound Semiconductor Integrated Circuits and Technology Symposium, 2023.
ieee: M. Iftekhar, H. Nagaraju, P. Kneuper, B. Sadiye, W. Müller, and J. C. Scheytt,
“A 28-Gb/s 27.2 mW NRZ Full-Rate Bang-Bang Clock and Data Recovery in 22 nm FD-SOI
CMOS Technology ,” MONTEREY, CALIFORNIA, USA, 2023.
mla: Iftekhar, Mohammed, et al. “A 28-Gb/s 27.2 MW NRZ Full-Rate Bang-Bang Clock
and Data Recovery in 22 Nm FD-SOI CMOS Technology .” BCICTS 2023 IEEE BiCMOS
and Compound Semiconductor Integrated Circuits and Technology Symposium, 2023.
short: 'M. Iftekhar, H. Nagaraju, P. Kneuper, B. Sadiye, W. Müller, J.C. Scheytt,
in: BCICTS 2023 IEEE BiCMOS and Compound Semiconductor Integrated Circuits and
Technology Symposium, 2023.'
conference:
end_date: 2023-10-18
location: MONTEREY, CALIFORNIA, USA
start_date: 2023-10-15
date_created: 2023-09-14T11:30:36Z
date_updated: 2025-02-26T14:41:53Z
department:
- _id: '58'
language:
- iso: eng
publication: BCICTS 2023 IEEE BiCMOS and Compound Semiconductor Integrated Circuits
and Technology Symposium
related_material:
link:
- relation: contains
url: https://bcicts.org/
status: public
title: 'A 28-Gb/s 27.2 mW NRZ Full-Rate Bang-Bang Clock and Data Recovery in 22 nm
FD-SOI CMOS Technology '
type: conference_abstract
user_id: '15931'
year: '2023'
...
---
_id: '60355'
abstract:
- lang: eng
text: We present a method for the generation of higher-order tetrahedral
meshes. In contrast to previous methods, the curved tetrahedral elements are guaranteed
to be free of degeneracies and inversions while conforming exactly to prescribed
piecewise polynomial surfaces, such as domain boundaries or material interfaces.
Arbitrary polynomial order is supported. Algorithmically, the polynomial input
surfaces are first covered by a single layer of carefully constructed curved elements
using a recursive refinement procedure that provably avoids degeneracies and inversions.
These tetrahedral elements are designed such that the remaining space is bounded
piecewise linearly. In this way, our method effectively reduces the curved meshing
problem to the classical problem of linear mesh generation (for the remaining
space).
author:
- first_name: Payam
full_name: Khanteimouri, Payam
last_name: Khanteimouri
- first_name: Marcel
full_name: Campen, Marcel
id: '114904'
last_name: Campen
orcid: 0000-0003-2340-3462
citation:
ama: 'Khanteimouri P, Campen M. 3D Bézier Guarding: Boundary-Conforming Curved Tetrahedral
Meshing. ACM Transactions on Graphics. 2023;42(6):1-19. doi:10.1145/3618332'
apa: 'Khanteimouri, P., & Campen, M. (2023). 3D Bézier Guarding: Boundary-Conforming
Curved Tetrahedral Meshing. ACM Transactions on Graphics, 42(6),
1–19. https://doi.org/10.1145/3618332'
bibtex: '@article{Khanteimouri_Campen_2023, title={3D Bézier Guarding: Boundary-Conforming
Curved Tetrahedral Meshing}, volume={42}, DOI={10.1145/3618332},
number={6}, journal={ACM Transactions on Graphics}, publisher={Association for
Computing Machinery (ACM)}, author={Khanteimouri, Payam and Campen, Marcel}, year={2023},
pages={1–19} }'
chicago: 'Khanteimouri, Payam, and Marcel Campen. “3D Bézier Guarding: Boundary-Conforming
Curved Tetrahedral Meshing.” ACM Transactions on Graphics 42, no. 6 (2023):
1–19. https://doi.org/10.1145/3618332.'
ieee: 'P. Khanteimouri and M. Campen, “3D Bézier Guarding: Boundary-Conforming Curved
Tetrahedral Meshing,” ACM Transactions on Graphics, vol. 42, no. 6, pp.
1–19, 2023, doi: 10.1145/3618332.'
mla: 'Khanteimouri, Payam, and Marcel Campen. “3D Bézier Guarding: Boundary-Conforming
Curved Tetrahedral Meshing.” ACM Transactions on Graphics, vol. 42, no.
6, Association for Computing Machinery (ACM), 2023, pp. 1–19, doi:10.1145/3618332.'
short: P. Khanteimouri, M. Campen, ACM Transactions on Graphics 42 (2023) 1–19.
date_created: 2025-06-24T07:46:53Z
date_updated: 2025-07-14T12:46:54Z
department:
- _id: '969'
doi: 10.1145/3618332
extern: '1'
intvolume: ' 42'
issue: '6'
language:
- iso: eng
page: 1-19
publication: ACM Transactions on Graphics
publication_identifier:
issn:
- 0730-0301
- 1557-7368
publication_status: published
publisher: Association for Computing Machinery (ACM)
status: public
title: '3D Bézier Guarding: Boundary-Conforming Curved Tetrahedral Meshing'
type: journal_article
user_id: '117512'
volume: 42
year: '2023'
...
---
_id: '60337'
abstract:
- lang: eng
text: "\r\n Volumetric mapping is a ubiquitous and difficult
problem in Geometry Processing and has been the subject of research in numerous
and various directions. While several methods show encouraging results, the field
still lacks a general approach with guarantees regarding map bijectivity. Through
this work, we aim at opening the door to a new family of methods by providing
a novel framework based on the concept of\r\n progressive
expansion.\r\n Starting from an initial map of a tetrahedral
mesh whose image may contain degeneracies but no inversions, we incrementally
adjust vertex images to expand degenerate elements. By restricting movement to
so-called\r\n expansion cones\r\n ,
it is done in such a way that the number of degenerate elements decreases in a
strictly monotonic manner, without ever introducing any inversion. Adaptive local
refinement of the mesh is performed to facilitate this process. We describe a
prototype algorithm in the realm of this framework for the computation of maps
from ball-topology tetrahedral meshes to convex or star-shaped domains. This algorithm
is evaluated and compared to state-of-the-art methods, demonstrating its benefits
in terms of bijectivity. We also discuss the associated cost in terms of sometimes
significant mesh refinement to obtain the necessary degrees of freedom required
for establishing a valid mapping. Our conclusions include that while this algorithm
is only of limited immediate practical utility due to efficiency concerns, the
general framework has the potential to inspire a range of novel methods improving
on the efficiency aspect.\r\n "
author:
- first_name: Valentin Zénon
full_name: Nigolian, Valentin Zénon
last_name: Nigolian
- first_name: Marcel
full_name: Campen, Marcel
id: '114904'
last_name: Campen
orcid: 0000-0003-2340-3462
- first_name: David
full_name: Bommes, David
last_name: Bommes
citation:
ama: 'Nigolian VZ, Campen M, Bommes D. Expansion Cones: A Progressive Volumetric
Mapping Framework. ACM Transactions on Graphics. 2023;42(4):1-19. doi:10.1145/3592421'
apa: 'Nigolian, V. Z., Campen, M., & Bommes, D. (2023). Expansion Cones: A Progressive
Volumetric Mapping Framework. ACM Transactions on Graphics, 42(4),
1–19. https://doi.org/10.1145/3592421'
bibtex: '@article{Nigolian_Campen_Bommes_2023, title={Expansion Cones: A Progressive
Volumetric Mapping Framework}, volume={42}, DOI={10.1145/3592421},
number={4}, journal={ACM Transactions on Graphics}, publisher={Association for
Computing Machinery (ACM)}, author={Nigolian, Valentin Zénon and Campen, Marcel
and Bommes, David}, year={2023}, pages={1–19} }'
chicago: 'Nigolian, Valentin Zénon, Marcel Campen, and David Bommes. “Expansion
Cones: A Progressive Volumetric Mapping Framework.” ACM Transactions on Graphics
42, no. 4 (2023): 1–19. https://doi.org/10.1145/3592421.'
ieee: 'V. Z. Nigolian, M. Campen, and D. Bommes, “Expansion Cones: A Progressive
Volumetric Mapping Framework,” ACM Transactions on Graphics, vol. 42, no.
4, pp. 1–19, 2023, doi: 10.1145/3592421.'
mla: 'Nigolian, Valentin Zénon, et al. “Expansion Cones: A Progressive Volumetric
Mapping Framework.” ACM Transactions on Graphics, vol. 42, no. 4, Association
for Computing Machinery (ACM), 2023, pp. 1–19, doi:10.1145/3592421.'
short: V.Z. Nigolian, M. Campen, D. Bommes, ACM Transactions on Graphics 42 (2023)
1–19.
date_created: 2025-06-23T10:58:12Z
date_updated: 2025-07-14T12:47:55Z
department:
- _id: '969'
doi: 10.1145/3592421
extern: '1'
intvolume: ' 42'
issue: '4'
language:
- iso: eng
page: 1-19
publication: ACM Transactions on Graphics
publication_identifier:
issn:
- 0730-0301
- 1557-7368
publication_status: published
publisher: Association for Computing Machinery (ACM)
status: public
title: 'Expansion Cones: A Progressive Volumetric Mapping Framework'
type: journal_article
user_id: '117512'
volume: 42
year: '2023'
...
---
_id: '60354'
abstract:
- lang: eng
text: We present a set of operators to perform modifications, in particular
collapses and splits, in volumetric cell complexes which are discretely embedded
in a background mesh. Topological integrity and geometric embedding validity are
carefully maintained. We apply these operators strategically to volumetric block
decompositions, so-called T-meshes or base complexes, in the context of hexahedral
mesh generation. This allows circumventing the expensive and unreliable global
volumetric remapping step in the versatile meshing pipeline based on 3D integer-grid
maps. In essence, we reduce this step to simpler local cube mapping problems,
for which reliable solutions are available. As a consequence, the robustness of
the mesh generation process is increased, especially when targeting coarse or
block-structured hexahedral meshes. We furthermore extend this pipeline to support
feature alignment constraints, and systematically respect these throughout, enabling
the generation of meshes that align to points, curves, and surfaces of special
interest, whether on the boundary or in the interior of the domain.
author:
- first_name: Hendrik
full_name: Brückler, Hendrik
id: '115694'
last_name: Brückler
- first_name: Marcel
full_name: Campen, Marcel
id: '114904'
last_name: Campen
orcid: 0000-0003-2340-3462
citation:
ama: Brückler H, Campen M. Collapsing Embedded Cell Complexes for Safer Hexahedral
Meshing. ACM Transactions on Graphics. 2023;42(6):1-24. doi:10.1145/3618384
apa: Brückler, H., & Campen, M. (2023). Collapsing Embedded Cell Complexes for
Safer Hexahedral Meshing. ACM Transactions on Graphics, 42(6), 1–24.
https://doi.org/10.1145/3618384
bibtex: '@article{Brückler_Campen_2023, title={Collapsing Embedded Cell Complexes
for Safer Hexahedral Meshing}, volume={42}, DOI={10.1145/3618384},
number={6}, journal={ACM Transactions on Graphics}, publisher={Association for
Computing Machinery (ACM)}, author={Brückler, Hendrik and Campen, Marcel}, year={2023},
pages={1–24} }'
chicago: 'Brückler, Hendrik, and Marcel Campen. “Collapsing Embedded Cell Complexes
for Safer Hexahedral Meshing.” ACM Transactions on Graphics 42, no. 6 (2023):
1–24. https://doi.org/10.1145/3618384.'
ieee: 'H. Brückler and M. Campen, “Collapsing Embedded Cell Complexes for Safer
Hexahedral Meshing,” ACM Transactions on Graphics, vol. 42, no. 6, pp.
1–24, 2023, doi: 10.1145/3618384.'
mla: Brückler, Hendrik, and Marcel Campen. “Collapsing Embedded Cell Complexes for
Safer Hexahedral Meshing.” ACM Transactions on Graphics, vol. 42, no. 6,
Association for Computing Machinery (ACM), 2023, pp. 1–24, doi:10.1145/3618384.
short: H. Brückler, M. Campen, ACM Transactions on Graphics 42 (2023) 1–24.
date_created: 2025-06-24T07:45:44Z
date_updated: 2025-07-14T12:47:30Z
department:
- _id: '969'
doi: 10.1145/3618384
extern: '1'
intvolume: ' 42'
issue: '6'
language:
- iso: eng
page: 1-24
publication: ACM Transactions on Graphics
publication_identifier:
issn:
- 0730-0301
- 1557-7368
publication_status: published
publisher: Association for Computing Machinery (ACM)
status: public
title: Collapsing Embedded Cell Complexes for Safer Hexahedral Meshing
type: journal_article
user_id: '117512'
volume: 42
year: '2023'
...
---
_id: '60335'
abstract:
- lang: eng
text: A method is presented to compute volumetric maps and parametrizations
of objects over 3D domains. As a key feature, continuity and bijectivity are ensured
by construction. Arbitrary objects of ball topology, represented as tetrahedral
meshes, are supported. Arbitrary convex as well as star-shaped domains are supported.
Full control over the boundary mapping is provided. The method is based on the
technique of simplicial foliations, generalized to a broader class of domain shapes
and applied adaptively in a novel localized manner. This increases flexibility
as well as efficiency over the state of the art, while maintaining reliability
in guaranteeing map bijectivity.
author:
- first_name: Steffen
full_name: Hinderink, Steffen
id: '116615'
last_name: Hinderink
- first_name: Marcel
full_name: Campen, Marcel
id: '114904'
last_name: Campen
orcid: 0000-0003-2340-3462
citation:
ama: 'Hinderink S, Campen M. Galaxy Maps: Localized Foliations for Bijective Volumetric
Mapping. ACM Transactions on Graphics. 2023;42(4):1-16. doi:10.1145/3592410'
apa: 'Hinderink, S., & Campen, M. (2023). Galaxy Maps: Localized Foliations
for Bijective Volumetric Mapping. ACM Transactions on Graphics, 42(4),
1–16. https://doi.org/10.1145/3592410'
bibtex: '@article{Hinderink_Campen_2023, title={Galaxy Maps: Localized Foliations
for Bijective Volumetric Mapping}, volume={42}, DOI={10.1145/3592410},
number={4}, journal={ACM Transactions on Graphics}, publisher={Association for
Computing Machinery (ACM)}, author={Hinderink, Steffen and Campen, Marcel}, year={2023},
pages={1–16} }'
chicago: 'Hinderink, Steffen, and Marcel Campen. “Galaxy Maps: Localized Foliations
for Bijective Volumetric Mapping.” ACM Transactions on Graphics 42, no.
4 (2023): 1–16. https://doi.org/10.1145/3592410.'
ieee: 'S. Hinderink and M. Campen, “Galaxy Maps: Localized Foliations for Bijective
Volumetric Mapping,” ACM Transactions on Graphics, vol. 42, no. 4, pp.
1–16, 2023, doi: 10.1145/3592410.'
mla: 'Hinderink, Steffen, and Marcel Campen. “Galaxy Maps: Localized Foliations
for Bijective Volumetric Mapping.” ACM Transactions on Graphics, vol. 42,
no. 4, Association for Computing Machinery (ACM), 2023, pp. 1–16, doi:10.1145/3592410.'
short: S. Hinderink, M. Campen, ACM Transactions on Graphics 42 (2023) 1–16.
date_created: 2025-06-23T10:38:02Z
date_updated: 2025-07-14T12:48:12Z
department:
- _id: '969'
doi: 10.1145/3592410
extern: '1'
intvolume: ' 42'
issue: '4'
language:
- iso: eng
page: 1-16
publication: ACM Transactions on Graphics
publication_identifier:
issn:
- 0730-0301
- 1557-7368
publication_status: published
publisher: Association for Computing Machinery (ACM)
status: public
title: 'Galaxy Maps: Localized Foliations for Bijective Volumetric Mapping'
type: journal_article
user_id: '117512'
volume: 42
year: '2023'
...
---
_id: '60333'
abstract:
- lang: eng
text: AbstractWe describe HalfedgeCNN, a collection
of modules to build neural networks that operate on triangle meshes. Taking inspiration
from the (edge‐based) MeshCNN, convolution, pooling, and unpooling layers are
consistently defined on the basis of halfedges of the mesh, pairs of oppositely
oriented virtual instances of each edge. This provides benefits over alternative
definitions on the basis of vertices, edges, or faces. Additional interface layers
enable support for feature data associated with such mesh entities in input and
output as well. Due to being defined natively on mesh entities and their neighborhoods,
lossy resampling or interpolation techniques (to enable the application of operators
adopted from image domains) do not need to be employed. The operators have various
degrees of freedom that can be exploited to adapt to application‐specific needs.
author:
- first_name: Ingmar
full_name: Ludwig, Ingmar
id: '116667'
last_name: Ludwig
- first_name: Daniel
full_name: Tyson, Daniel
last_name: Tyson
- first_name: Marcel
full_name: Campen, Marcel
id: '114904'
last_name: Campen
orcid: 0000-0003-2340-3462
citation:
ama: Ludwig I, Tyson D, Campen M. HalfedgeCNN for Native and Flexible Deep Learning
on Triangle Meshes. Computer Graphics Forum. 2023;42(5). doi:10.1111/cgf.14898
apa: Ludwig, I., Tyson, D., & Campen, M. (2023). HalfedgeCNN for Native and
Flexible Deep Learning on Triangle Meshes. Computer Graphics Forum, 42(5).
https://doi.org/10.1111/cgf.14898
bibtex: '@article{Ludwig_Tyson_Campen_2023, title={HalfedgeCNN for Native and Flexible
Deep Learning on Triangle Meshes}, volume={42}, DOI={10.1111/cgf.14898},
number={5}, journal={Computer Graphics Forum}, publisher={Wiley}, author={Ludwig,
Ingmar and Tyson, Daniel and Campen, Marcel}, year={2023} }'
chicago: Ludwig, Ingmar, Daniel Tyson, and Marcel Campen. “HalfedgeCNN for Native
and Flexible Deep Learning on Triangle Meshes.” Computer Graphics Forum
42, no. 5 (2023). https://doi.org/10.1111/cgf.14898.
ieee: 'I. Ludwig, D. Tyson, and M. Campen, “HalfedgeCNN for Native and Flexible
Deep Learning on Triangle Meshes,” Computer Graphics Forum, vol. 42, no.
5, 2023, doi: 10.1111/cgf.14898.'
mla: Ludwig, Ingmar, et al. “HalfedgeCNN for Native and Flexible Deep Learning on
Triangle Meshes.” Computer Graphics Forum, vol. 42, no. 5, Wiley, 2023,
doi:10.1111/cgf.14898.
short: I. Ludwig, D. Tyson, M. Campen, Computer Graphics Forum 42 (2023).
date_created: 2025-06-23T10:34:49Z
date_updated: 2025-07-14T12:48:40Z
department:
- _id: '969'
doi: 10.1111/cgf.14898
extern: '1'
intvolume: ' 42'
issue: '5'
language:
- iso: eng
publication: Computer Graphics Forum
publication_identifier:
issn:
- 0167-7055
- 1467-8659
publication_status: published
publisher: Wiley
status: public
title: HalfedgeCNN for Native and Flexible Deep Learning on Triangle Meshes
type: journal_article
user_id: '117512'
volume: 42
year: '2023'
...