---
_id: '61123'
abstract:
- lang: eng
text: Knowledge graphs are used by a growing number of applications to represent
structured data. Hence, evaluating the veracity of assertions in knowledge graphs—dubbed
fact checking—is currently a challenge of growing importance. However, manual
fact checking is commonly impractical due to the sheer size of knowledge graphs.
This paper is a systematic survey of recent works on automatic fact checking with
a focus on knowledge graphs. We present recent fact-checking approaches, the varied
sources they use as background knowledge, and the features they rely upon. Finally,
we draw conclusions pertaining to possible future research directions in fact
checking knowledge graphs.
article_number: '3749838'
article_type: original
author:
- first_name: Umair
full_name: Qudus, Umair
id: '83392'
last_name: Qudus
orcid: 0000-0001-6714-8729
- first_name: Michael
full_name: Röder, Michael
id: '67199'
last_name: Röder
orcid: https://orcid.org/0000-0002-8609-8277
- first_name: Muhammad
full_name: Saleem, Muhammad
last_name: Saleem
- first_name: Axel-Cyrille
full_name: Ngonga Ngomo, Axel-Cyrille
id: '65716'
last_name: Ngonga Ngomo
citation:
ama: Qudus U, Röder M, Saleem M, Ngonga Ngomo A-C. Fact Checking Knowledge Graphs
-- A Survey. ACM Computing Surveys. 2025;58. doi:10.1145/3749838
apa: Qudus, U., Röder, M., Saleem, M., & Ngonga Ngomo, A.-C. (2025). Fact Checking
Knowledge Graphs -- A Survey. ACM Computing Surveys, 58, Article
3749838. https://doi.org/10.1145/3749838
bibtex: '@article{Qudus_Röder_Saleem_Ngonga Ngomo_2025, title={Fact Checking Knowledge
Graphs -- A Survey}, volume={58}, DOI={10.1145/3749838},
number={3749838}, journal={ACM Computing Surveys}, publisher={Association for
Computing Machinery (ACM)}, author={Qudus, Umair and Röder, Michael and Saleem,
Muhammad and Ngonga Ngomo, Axel-Cyrille}, year={2025} }'
chicago: Qudus, Umair, Michael Röder, Muhammad Saleem, and Axel-Cyrille Ngonga Ngomo.
“Fact Checking Knowledge Graphs -- A Survey.” ACM Computing Surveys 58
(2025). https://doi.org/10.1145/3749838.
ieee: 'U. Qudus, M. Röder, M. Saleem, and A.-C. Ngonga Ngomo, “Fact Checking Knowledge
Graphs -- A Survey,” ACM Computing Surveys, vol. 58, Art. no. 3749838,
2025, doi: 10.1145/3749838.'
mla: Qudus, Umair, et al. “Fact Checking Knowledge Graphs -- A Survey.” ACM Computing
Surveys, vol. 58, 3749838, Association for Computing Machinery (ACM), 2025,
doi:10.1145/3749838.
short: U. Qudus, M. Röder, M. Saleem, A.-C. Ngonga Ngomo, ACM Computing Surveys
58 (2025).
date_created: 2025-09-03T15:46:43Z
date_updated: 2025-09-11T09:30:28Z
ddc:
- '006'
department:
- _id: '574'
doi: 10.1145/3749838
external_id:
unknown:
- 10.1145/3749838
file:
- access_level: closed
content_type: application/pdf
creator: uqudus
date_created: 2025-09-11T09:26:29Z
date_updated: 2025-09-11T09:26:29Z
file_id: '61195'
file_name: 3749838.pdf
file_size: 1062387
relation: main_file
success: 1
file_date_updated: 2025-09-11T09:26:29Z
has_accepted_license: '1'
intvolume: ' 58'
keyword:
- fact checking
- knowledge graphs
- fact-checkers
- check worthiness
- evidence retrieval
- trust
- veracity.
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://dl.acm.org/doi/pdf/10.1145/3749838
oa: '1'
popular_science: '1'
publication: ACM Computing Surveys
publication_identifier:
issn:
- 0360-0300
- 1557-7341
publication_status: published
publisher: Association for Computing Machinery (ACM)
quality_controlled: '1'
status: public
title: Fact Checking Knowledge Graphs -- A Survey
type: journal_article
user_id: '83392'
volume: 58
year: '2025'
...
---
_id: '59912'
abstract:
- lang: eng
text: "Abstract\r\n We study the
expressivity and the complexity of various logics in probabilistic team semantics
with the Boolean negation. In particular, we study the extension of probabilistic
independence logic with the Boolean negation, and a recently introduced logic
first-order theory of random variables with probabilistic independence. We give
several results that compare the expressivity of these logics with the most studied
logics in probabilistic team semantics setting, as well as relating their expressivity
to a numerical variant of second-order logic. In addition, we introduce novel
entropy atoms and show that the extension of first-order logic by entropy atoms
subsumes probabilistic independence logic. Finally, we obtain some results on
the complexity of model checking, validity and satisfiability of our logics."
author:
- first_name: Miika
full_name: Hannula, Miika
last_name: Hannula
- first_name: Minna
full_name: Hirvonen, Minna
last_name: Hirvonen
- first_name: Juha
full_name: Kontinen, Juha
last_name: Kontinen
- first_name: Yasir
full_name: Mahmood, Yasir
id: '99353'
last_name: Mahmood
- first_name: Arne
full_name: Meier, Arne
last_name: Meier
- first_name: Jonni
full_name: Virtema, Jonni
last_name: Virtema
citation:
ama: Hannula M, Hirvonen M, Kontinen J, Mahmood Y, Meier A, Virtema J. Logics with
probabilistic team semantics and the Boolean negation. Journal of Logic and
Computation. 2025;35(3). doi:10.1093/logcom/exaf021
apa: Hannula, M., Hirvonen, M., Kontinen, J., Mahmood, Y., Meier, A., & Virtema,
J. (2025). Logics with probabilistic team semantics and the Boolean negation.
Journal of Logic and Computation, 35(3). https://doi.org/10.1093/logcom/exaf021
bibtex: '@article{Hannula_Hirvonen_Kontinen_Mahmood_Meier_Virtema_2025, title={Logics
with probabilistic team semantics and the Boolean negation}, volume={35}, DOI={10.1093/logcom/exaf021}, number={3},
journal={Journal of Logic and Computation}, publisher={Oxford University Press
(OUP)}, author={Hannula, Miika and Hirvonen, Minna and Kontinen, Juha and Mahmood,
Yasir and Meier, Arne and Virtema, Jonni}, year={2025} }'
chicago: Hannula, Miika, Minna Hirvonen, Juha Kontinen, Yasir Mahmood, Arne Meier,
and Jonni Virtema. “Logics with Probabilistic Team Semantics and the Boolean Negation.”
Journal of Logic and Computation 35, no. 3 (2025). https://doi.org/10.1093/logcom/exaf021.
ieee: 'M. Hannula, M. Hirvonen, J. Kontinen, Y. Mahmood, A. Meier, and J. Virtema,
“Logics with probabilistic team semantics and the Boolean negation,” Journal
of Logic and Computation, vol. 35, no. 3, 2025, doi: 10.1093/logcom/exaf021.'
mla: Hannula, Miika, et al. “Logics with Probabilistic Team Semantics and the Boolean
Negation.” Journal of Logic and Computation, vol. 35, no. 3, Oxford University
Press (OUP), 2025, doi:10.1093/logcom/exaf021.
short: M. Hannula, M. Hirvonen, J. Kontinen, Y. Mahmood, A. Meier, J. Virtema, Journal
of Logic and Computation 35 (2025).
date_created: 2025-05-15T11:07:28Z
date_updated: 2025-09-11T10:00:26Z
department:
- _id: '574'
doi: 10.1093/logcom/exaf021
intvolume: ' 35'
issue: '3'
language:
- iso: eng
project:
- _id: '121'
name: 'TRR 318; TP B01: Ein dialogbasierter Ansatz zur Erklärung von Modellen des
maschinellen Lernens'
publication: Journal of Logic and Computation
publication_identifier:
issn:
- 0955-792X
- 1465-363X
publication_status: published
publisher: Oxford University Press (OUP)
status: public
title: Logics with probabilistic team semantics and the Boolean negation
type: journal_article
user_id: '99353'
volume: 35
year: '2025'
...
---
_id: '59054'
author:
- first_name: Asep Fajar
full_name: Firmansyah, Asep Fajar
id: '76787'
last_name: Firmansyah
- first_name: Hamada Mohamed Abdelsamee
full_name: Zahera, Hamada Mohamed Abdelsamee
id: '72768'
last_name: Zahera
orcid: 0000-0003-0215-1278
- first_name: Mohamed
full_name: Sherif, Mohamed
id: '67234'
last_name: Sherif
orcid: https://orcid.org/0000-0002-9927-2203
- first_name: Diego
full_name: Moussallem, Diego
id: '71635'
last_name: Moussallem
- first_name: Axel-Cyrille
full_name: Ngonga Ngomo, Axel-Cyrille
id: '65716'
last_name: Ngonga Ngomo
citation:
ama: 'Firmansyah AF, Zahera HMA, Sherif M, Moussallem D, Ngonga Ngomo A-C. ANTS:
Abstractive Entity Summarization in Knowledge Graphs. In: ESWC2025. The
Semantic Web. pringer Nature Switzerland; 2025:133--151. doi:10.1007/978-3-031-94575-5_8'
apa: 'Firmansyah, A. F., Zahera, H. M. A., Sherif, M., Moussallem, D., & Ngonga
Ngomo, A.-C. (2025). ANTS: Abstractive Entity Summarization in Knowledge Graphs.
ESWC2025, 133--151. https://doi.org/10.1007/978-3-031-94575-5_8'
bibtex: '@inproceedings{Firmansyah_Zahera_Sherif_Moussallem_Ngonga Ngomo_2025, series={The
Semantic Web}, title={ANTS: Abstractive Entity Summarization in Knowledge Graphs},
DOI={10.1007/978-3-031-94575-5_8},
booktitle={ESWC2025}, publisher={pringer Nature Switzerland}, author={Firmansyah,
Asep Fajar and Zahera, Hamada Mohamed Abdelsamee and Sherif, Mohamed and Moussallem,
Diego and Ngonga Ngomo, Axel-Cyrille}, year={2025}, pages={133--151}, collection={The
Semantic Web} }'
chicago: 'Firmansyah, Asep Fajar, Hamada Mohamed Abdelsamee Zahera, Mohamed Sherif,
Diego Moussallem, and Axel-Cyrille Ngonga Ngomo. “ANTS: Abstractive Entity Summarization
in Knowledge Graphs.” In ESWC2025, 133--151. The Semantic Web. pringer
Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-94575-5_8.'
ieee: 'A. F. Firmansyah, H. M. A. Zahera, M. Sherif, D. Moussallem, and A.-C. Ngonga
Ngomo, “ANTS: Abstractive Entity Summarization in Knowledge Graphs,” in ESWC2025,
2025, pp. 133--151, doi: 10.1007/978-3-031-94575-5_8.'
mla: 'Firmansyah, Asep Fajar, et al. “ANTS: Abstractive Entity Summarization in
Knowledge Graphs.” ESWC2025, pringer Nature Switzerland, 2025, pp. 133--151,
doi:10.1007/978-3-031-94575-5_8.'
short: 'A.F. Firmansyah, H.M.A. Zahera, M. Sherif, D. Moussallem, A.-C. Ngonga Ngomo,
in: ESWC2025, pringer Nature Switzerland, 2025, pp. 133--151.'
conference:
name: ESWC 2025
date_created: 2025-03-17T13:41:48Z
date_updated: 2025-09-11T10:00:44Z
department:
- _id: '574'
doi: 10.1007/978-3-031-94575-5_8
keyword:
- firmansyah mousallem ngonga sherif zahera
language:
- iso: eng
page: 133--151
publication: ESWC2025
publication_identifier:
isbn:
- 978-3-031-94575-5
publication_status: published
publisher: pringer Nature Switzerland
series_title: The Semantic Web
status: public
title: 'ANTS: Abstractive Entity Summarization in Knowledge Graphs'
type: conference
user_id: '67234'
year: '2025'
...
---
_id: '61066'
abstract:
- lang: eng
text: "Argumentation is a central subarea of Artificial Intelligence (AI) for\r\nmodeling
and reasoning about arguments. The semantics of abstract argumentation\r\nframeworks
(AFs) is given by sets of arguments (extensions) and conditions on\r\nthe relationship
between them, such as stable or admissible. Today's solvers\r\nimplement tasks
such as finding extensions, deciding credulous or skeptical\r\nacceptance, counting,
or enumerating extensions. While these tasks are well\r\ncharted, the area between
decision, counting/enumeration and fine-grained\r\nreasoning requires expensive
reasoning so far. We introduce a novel concept\r\n(facets) for reasoning between
decision and enumeration. Facets are arguments\r\nthat belong to some extensions
(credulous) but not to all extensions\r\n(skeptical). They are most natural when
a user aims to navigate, filter, or\r\ncomprehend the significance of specific
arguments, according to their needs. We\r\nstudy the complexity and show that
tasks involving facets are much easier than\r\ncounting extensions. Finally, we
provide an implementation, and conduct\r\nexperiments to demonstrate feasibility."
author:
- first_name: Johannes
full_name: Fichte, Johannes
last_name: Fichte
- first_name: Nicolas
full_name: Fröhlich, Nicolas
last_name: Fröhlich
- first_name: Markus
full_name: Hecher, Markus
last_name: Hecher
- first_name: Victor
full_name: Lagerkvist, Victor
last_name: Lagerkvist
- first_name: Yasir
full_name: Mahmood, Yasir
id: '99353'
last_name: Mahmood
- first_name: Arne
full_name: Meier, Arne
last_name: Meier
- first_name: Jonathan
full_name: Persson, Jonathan
last_name: Persson
citation:
ama: 'Fichte J, Fröhlich N, Hecher M, et al. Facets in Argumentation: A Formal Approach
to Argument Significance. arXiv:250510982. Published online 2025.'
apa: 'Fichte, J., Fröhlich, N., Hecher, M., Lagerkvist, V., Mahmood, Y., Meier,
A., & Persson, J. (2025). Facets in Argumentation: A Formal Approach to Argument
Significance. In arXiv:2505.10982.'
bibtex: '@article{Fichte_Fröhlich_Hecher_Lagerkvist_Mahmood_Meier_Persson_2025,
title={Facets in Argumentation: A Formal Approach to Argument Significance}, journal={arXiv:2505.10982},
author={Fichte, Johannes and Fröhlich, Nicolas and Hecher, Markus and Lagerkvist,
Victor and Mahmood, Yasir and Meier, Arne and Persson, Jonathan}, year={2025}
}'
chicago: 'Fichte, Johannes, Nicolas Fröhlich, Markus Hecher, Victor Lagerkvist,
Yasir Mahmood, Arne Meier, and Jonathan Persson. “Facets in Argumentation: A Formal
Approach to Argument Significance.” ArXiv:2505.10982, 2025.'
ieee: 'J. Fichte et al., “Facets in Argumentation: A Formal Approach to Argument
Significance,” arXiv:2505.10982. 2025.'
mla: 'Fichte, Johannes, et al. “Facets in Argumentation: A Formal Approach to Argument
Significance.” ArXiv:2505.10982, 2025.'
short: J. Fichte, N. Fröhlich, M. Hecher, V. Lagerkvist, Y. Mahmood, A. Meier, J.
Persson, ArXiv:2505.10982 (2025).
date_created: 2025-08-29T08:07:43Z
date_updated: 2025-09-11T09:58:34Z
department:
- _id: '574'
external_id:
arxiv:
- '2505.10982'
language:
- iso: eng
project:
- _id: '121'
name: 'TRR 318; TP B01: Ein dialogbasierter Ansatz zur Erklärung von Modellen des
maschinellen Lernens'
publication: arXiv:2505.10982
status: public
title: 'Facets in Argumentation: A Formal Approach to Argument Significance'
type: preprint
user_id: '99353'
year: '2025'
...
---
_id: '54970'
author:
- first_name: Carolin
full_name: Quack, Carolin
id: '77311'
last_name: Quack
- first_name: Julia
full_name: Bruns, Julia
id: '72183'
last_name: Bruns
orcid: https://orcid.org/0000-0002-6604-5864
citation:
ama: Quack C, Bruns J. Mathematikbezogenes Wissen, Einstellungen und Lerngelegenheiten
als Einflussfaktoren der situativen Beobachtung und Wahrnehmung angehender frühpädagogischer
Fachkräfte. Frühe Bildung. 2025;14(2):72-78. doi:https://doi.org/10.1026/2191-9186/a000712
apa: Quack, C., & Bruns, J. (2025). Mathematikbezogenes Wissen, Einstellungen
und Lerngelegenheiten als Einflussfaktoren der situativen Beobachtung und Wahrnehmung
angehender frühpädagogischer Fachkräfte. Frühe Bildung, 14(2), 72–78.
https://doi.org/10.1026/2191-9186/a000712
bibtex: '@article{Quack_Bruns_2025, title={Mathematikbezogenes Wissen, Einstellungen
und Lerngelegenheiten als Einflussfaktoren der situativen Beobachtung und Wahrnehmung
angehender frühpädagogischer Fachkräfte}, volume={14}, DOI={https://doi.org/10.1026/2191-9186/a000712},
number={2}, journal={Frühe Bildung}, author={Quack, Carolin and Bruns, Julia},
year={2025}, pages={72–78} }'
chicago: 'Quack, Carolin, and Julia Bruns. “Mathematikbezogenes Wissen, Einstellungen
und Lerngelegenheiten als Einflussfaktoren der situativen Beobachtung und Wahrnehmung
angehender frühpädagogischer Fachkräfte.” Frühe Bildung 14, no. 2 (2025):
72–78. https://doi.org/10.1026/2191-9186/a000712.'
ieee: 'C. Quack and J. Bruns, “Mathematikbezogenes Wissen, Einstellungen und Lerngelegenheiten
als Einflussfaktoren der situativen Beobachtung und Wahrnehmung angehender frühpädagogischer
Fachkräfte,” Frühe Bildung, vol. 14, no. 2, pp. 72–78, 2025, doi: https://doi.org/10.1026/2191-9186/a000712.'
mla: Quack, Carolin, and Julia Bruns. “Mathematikbezogenes Wissen, Einstellungen
und Lerngelegenheiten als Einflussfaktoren der situativen Beobachtung und Wahrnehmung
angehender frühpädagogischer Fachkräfte.” Frühe Bildung, vol. 14, no. 2,
2025, pp. 72–78, doi:https://doi.org/10.1026/2191-9186/a000712.
short: C. Quack, J. Bruns, Frühe Bildung 14 (2025) 72–78.
date_created: 2024-07-02T07:31:26Z
date_updated: 2026-03-11T14:31:13Z
department:
- _id: '611'
doi: https://doi.org/10.1026/2191-9186/a000712
intvolume: ' 14'
issue: '2'
language:
- iso: ger
page: 72-78
publication: Frühe Bildung
status: public
title: Mathematikbezogenes Wissen, Einstellungen und Lerngelegenheiten als Einflussfaktoren
der situativen Beobachtung und Wahrnehmung angehender frühpädagogischer Fachkräfte
type: journal_article
user_id: '72183'
volume: 14
year: '2025'
...
---
_id: '65018'
abstract:
- lang: eng
text: "Android applications collecting data from users must protect it according
to the current legal frameworks. Such data protection has become even more important
since in 2018 the European Union rolled out the General Data Protection Regulation
(GDPR). Since app developers are not legal experts, they find it difficult to
integrate privacy-aware practices into source code development. Despite these
legal obligations, developers have limited tool support to reason about data protection
throughout their app development process.\r\n This paper explores the use of
static program slicing and software visualization to analyze privacy-relevant
data flows in Android apps. We introduce SliceViz, a web tool that analyzes an
Android app by slicing all privacy-relevant data sources detected in the source
code on the back-end. It then helps developers by visualizing these privacy-relevant
program slices.\r\n We conducted a user study with 12 participants demonstrating
that SliceViz effectively aids developers in identifying privacy-relevant properties
in Android apps.\r\n Our findings indicate that program slicing can be employed
to identify and reason about privacy-relevant data flows in Android applications.
With further usability improvements, developers can be better equipped to handle
privacy-sensitive information."
author:
- first_name: Mugdha
full_name: Khedkar, Mugdha
id: '88024'
last_name: Khedkar
- first_name: Michael
full_name: Schlichtig, Michael
id: '32312'
last_name: Schlichtig
orcid: 0000-0001-6600-6171
- first_name: Santhosh
full_name: Mohan, Santhosh
last_name: Mohan
- first_name: Eric
full_name: Bodden, Eric
id: '59256'
last_name: Bodden
orcid: 0000-0003-3470-3647
citation:
ama: Khedkar M, Schlichtig M, Mohan S, Bodden E. Visualizing Privacy-Relevant Data
Flows in Android Applications. arXiv:250316640. Published online 2025.
apa: Khedkar, M., Schlichtig, M., Mohan, S., & Bodden, E. (2025). Visualizing
Privacy-Relevant Data Flows in Android Applications. In arXiv:2503.16640.
bibtex: '@article{Khedkar_Schlichtig_Mohan_Bodden_2025, title={Visualizing Privacy-Relevant
Data Flows in Android Applications}, journal={arXiv:2503.16640}, author={Khedkar,
Mugdha and Schlichtig, Michael and Mohan, Santhosh and Bodden, Eric}, year={2025}
}'
chicago: Khedkar, Mugdha, Michael Schlichtig, Santhosh Mohan, and Eric Bodden. “Visualizing
Privacy-Relevant Data Flows in Android Applications.” ArXiv:2503.16640,
2025.
ieee: M. Khedkar, M. Schlichtig, S. Mohan, and E. Bodden, “Visualizing Privacy-Relevant
Data Flows in Android Applications,” arXiv:2503.16640. 2025.
mla: Khedkar, Mugdha, et al. “Visualizing Privacy-Relevant Data Flows in Android
Applications.” ArXiv:2503.16640, 2025.
short: M. Khedkar, M. Schlichtig, S. Mohan, E. Bodden, ArXiv:2503.16640 (2025).
date_created: 2026-03-16T17:39:12Z
date_updated: 2026-03-16T17:40:56Z
department:
- _id: '76'
external_id:
arxiv:
- '2503.16640'
language:
- iso: eng
publication: arXiv:2503.16640
status: public
title: Visualizing Privacy-Relevant Data Flows in Android Applications
type: preprint
user_id: '32312'
year: '2025'
...
---
_id: '65038'
abstract:
- lang: eng
text: The rapid advancements in digital transformation have led to the emergence
of dataspaces as a pivotal element for industry-wide and cross-industry data integration
and interoperability across various businesses. Despite their potential, the adoption
and effective utilization of dataspaces by business stakeholders remain challenging.
This paper aims to address this gap by developing a comprehensive learning environment
tailored for business stakeholders. Through an interview study and an analysis
of the current state of research, we identify problem fields and derive key requirements
for the development of the learning environment. The proposed environment includes
a demonstrator and a training concept designed to enhance stakeholders' understanding
and capabilities in managing and leveraging dataspaces. Our findings contribute
to the body of knowledge by providing practical guidance through learning environments
for the deployment of dataspaces in business contexts and highlighting areas for
future research.
author:
- first_name: Jonas
full_name: Lick, Jonas
last_name: Lick
- first_name: Jessica
full_name: Lamarz, Jessica
last_name: Lamarz
- first_name: Friederike
full_name: Dohmann, Friederike
last_name: Dohmann
- first_name: Pranav Jayant
full_name: Kulkarni, Pranav Jayant
id: '86782'
last_name: Kulkarni
- first_name: Julian
full_name: Zerbin, Julian
id: '51711'
last_name: Zerbin
- first_name: Christian
full_name: Koldewey, Christian
id: '43136'
last_name: Koldewey
orcid: https://orcid.org/0000-0001-7992-6399
citation:
ama: 'Lick J, Lamarz J, Dohmann F, Kulkarni PJ, Zerbin J, Koldewey C. Guidance on
Dataspaces: Development of a Learning Environment for Industrial SMEs. In: 2024
6th International Conference on Control and Robotics (ICCR). IEEE; 2025. doi:10.1109/iccr64365.2024.10927580'
apa: 'Lick, J., Lamarz, J., Dohmann, F., Kulkarni, P. J., Zerbin, J., & Koldewey,
C. (2025). Guidance on Dataspaces: Development of a Learning Environment for Industrial
SMEs. 2024 6th International Conference on Control and Robotics (ICCR).
6th International Conference on Control and Robotics (ICCR), Yokohama, Japan .
https://doi.org/10.1109/iccr64365.2024.10927580'
bibtex: '@inproceedings{Lick_Lamarz_Dohmann_Kulkarni_Zerbin_Koldewey_2025, title={Guidance
on Dataspaces: Development of a Learning Environment for Industrial SMEs}, DOI={10.1109/iccr64365.2024.10927580},
booktitle={2024 6th International Conference on Control and Robotics (ICCR)},
publisher={IEEE}, author={Lick, Jonas and Lamarz, Jessica and Dohmann, Friederike
and Kulkarni, Pranav Jayant and Zerbin, Julian and Koldewey, Christian}, year={2025}
}'
chicago: 'Lick, Jonas, Jessica Lamarz, Friederike Dohmann, Pranav Jayant Kulkarni,
Julian Zerbin, and Christian Koldewey. “Guidance on Dataspaces: Development of
a Learning Environment for Industrial SMEs.” In 2024 6th International Conference
on Control and Robotics (ICCR). IEEE, 2025. https://doi.org/10.1109/iccr64365.2024.10927580.'
ieee: 'J. Lick, J. Lamarz, F. Dohmann, P. J. Kulkarni, J. Zerbin, and C. Koldewey,
“Guidance on Dataspaces: Development of a Learning Environment for Industrial
SMEs,” presented at the 6th International Conference on Control and Robotics (ICCR),
Yokohama, Japan , 2025, doi: 10.1109/iccr64365.2024.10927580.'
mla: 'Lick, Jonas, et al. “Guidance on Dataspaces: Development of a Learning Environment
for Industrial SMEs.” 2024 6th International Conference on Control and Robotics
(ICCR), IEEE, 2025, doi:10.1109/iccr64365.2024.10927580.'
short: 'J. Lick, J. Lamarz, F. Dohmann, P.J. Kulkarni, J. Zerbin, C. Koldewey, in:
2024 6th International Conference on Control and Robotics (ICCR), IEEE, 2025.'
conference:
end_date: 2024-12-07
location: 'Yokohama, Japan '
name: 6th International Conference on Control and Robotics (ICCR)
start_date: 2024-12-05
date_created: 2026-03-18T07:13:35Z
date_updated: 2026-03-18T07:18:48Z
department:
- _id: '563'
doi: 10.1109/iccr64365.2024.10927580
language:
- iso: eng
publication: 2024 6th International Conference on Control and Robotics (ICCR)
publication_status: published
publisher: IEEE
quality_controlled: '1'
status: public
title: 'Guidance on Dataspaces: Development of a Learning Environment for Industrial
SMEs'
type: conference
user_id: '51711'
year: '2025'
...
---
_id: '62291'
abstract:
- lang: eng
text: |-
In [Jalowy, Kabluchko, Marynych, arXiv:2504.11593v1, 2025], the authors discuss a user-friendly approach to determine the limiting empirical zero distribution of a sequence of real-rooted polynomials, as the degree goes to $\infty$. In this note, we aim to apply it to a vast range of examples of polynomials providing a unifying source for limiting empirical zero distributions.
We cover Touchard, Fubini, Eulerian, Narayana and little $q$-Laguerre polynomials as well as hypergeometric polynomials including the classical Hermite, Laguerre and Jacobi polynomials. We construct polynomials whose empirical zero distributions converge to the free multiplicative normal and Poisson distributions. Furthermore, we study polynomials generated by some differential operators. As one inverse result, we derive coefficient asymptotics of the characteristic polynomial of random covariance matrices.
citation:
ama: 'Zeros and exponential profiles of polynomials II: Examples. Published online
2025. doi:10.48550/ARXIV.2509.11248'
apa: 'Zeros and exponential profiles of polynomials II: Examples. (2025).
https://doi.org/10.48550/ARXIV.2509.11248'
bibtex: '@article{Zeros and exponential profiles of polynomials II: Examples_2025,
DOI={10.48550/ARXIV.2509.11248},
year={2025} }'
chicago: '“Zeros and Exponential Profiles of Polynomials II: Examples,” 2025. https://doi.org/10.48550/ARXIV.2509.11248.'
ieee: '“Zeros and exponential profiles of polynomials II: Examples,” 2025, doi:
10.48550/ARXIV.2509.11248.'
mla: 'Zeros and Exponential Profiles of Polynomials II: Examples. 2025, doi:10.48550/ARXIV.2509.11248.'
short: (2025).
date_created: 2025-11-24T13:55:55Z
date_updated: 2026-03-19T14:45:35Z
department:
- _id: '94'
doi: 10.48550/ARXIV.2509.11248
status: public
title: 'Zeros and exponential profiles of polynomials II: Examples'
type: journal_article
user_id: '113768'
year: '2025'
...
---
_id: '62302'
abstract:
- lang: eng
text: The degree of crosslinking in unidirectional prepreg materials was investigated
using differential scanning calorimetry to assess their curing behavior and thermal
characteristics. To complement these measurements with a non-destructive, in-situ
method, the propagation properties of guided acoustic waves in cured carbon fibre-reinforced
epoxy plates were analysed. Correlations between the degree of crosslinking and
acoustically determined mechanical properties were drawn to enable a future non-destructive
evaluation approach.
author:
- first_name: Hayrettin
full_name: Irmak, Hayrettin
id: '75657'
last_name: Irmak
orcid: https://orcid.org/0009-0009-6267-2957
- first_name: Leander
full_name: Claes, Leander
id: '11829'
last_name: Claes
orcid: 0000-0002-4393-268X
- first_name: Shuang
full_name: Wu, Shuang
id: '48039'
last_name: Wu
orcid: 0000-0001-8645-9952
- first_name: Thorsten
full_name: Marten, Thorsten
id: '338'
last_name: Marten
orcid: 0009-0001-6433-7839
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
citation:
ama: 'Irmak H, Claes L, Wu S, Marten T, Tröster T. Assessment of the influence of
curing parameters on fibre reinforced epoxy composite properties using guided
ultrasonic waves. In: 2025 International Congress on Ultrasonics. AMA Service
GmbH; 2025:235–238. doi:10.5162/ultrasonic2025/c13-b3'
apa: Irmak, H., Claes, L., Wu, S., Marten, T., & Tröster, T. (2025). Assessment
of the influence of curing parameters on fibre reinforced epoxy composite properties
using guided ultrasonic waves. 2025 International Congress on Ultrasonics,
235–238. https://doi.org/10.5162/ultrasonic2025/c13-b3
bibtex: '@inproceedings{Irmak_Claes_Wu_Marten_Tröster_2025, place={Paderborn}, title={Assessment
of the influence of curing parameters on fibre reinforced epoxy composite properties
using guided ultrasonic waves}, DOI={10.5162/ultrasonic2025/c13-b3},
booktitle={2025 International Congress on Ultrasonics}, publisher={AMA Service
GmbH}, author={Irmak, Hayrettin and Claes, Leander and Wu, Shuang and Marten,
Thorsten and Tröster, Thomas}, year={2025}, pages={235–238} }'
chicago: 'Irmak, Hayrettin, Leander Claes, Shuang Wu, Thorsten Marten, and Thomas
Tröster. “Assessment of the Influence of Curing Parameters on Fibre Reinforced
Epoxy Composite Properties Using Guided Ultrasonic Waves.” In 2025 International
Congress on Ultrasonics, 235–238. Paderborn: AMA Service GmbH, 2025. https://doi.org/10.5162/ultrasonic2025/c13-b3.'
ieee: 'H. Irmak, L. Claes, S. Wu, T. Marten, and T. Tröster, “Assessment of the
influence of curing parameters on fibre reinforced epoxy composite properties
using guided ultrasonic waves,” in 2025 International Congress on Ultrasonics,
Paderborn, Germany, 2025, pp. 235–238, doi: 10.5162/ultrasonic2025/c13-b3.'
mla: Irmak, Hayrettin, et al. “Assessment of the Influence of Curing Parameters
on Fibre Reinforced Epoxy Composite Properties Using Guided Ultrasonic Waves.”
2025 International Congress on Ultrasonics, AMA Service GmbH, 2025, pp.
235–238, doi:10.5162/ultrasonic2025/c13-b3.
short: 'H. Irmak, L. Claes, S. Wu, T. Marten, T. Tröster, in: 2025 International
Congress on Ultrasonics, AMA Service GmbH, Paderborn, 2025, pp. 235–238.'
conference:
end_date: 2025-09-25
location: Paderborn, Germany
name: 2025 ICU PADERBORN - 9th International Congress on Ultrasonics
start_date: 2025-09-21
date_created: 2025-11-25T12:23:07Z
date_updated: 2026-03-23T10:31:53Z
department:
- _id: '49'
- _id: '149'
- _id: '321'
doi: 10.5162/ultrasonic2025/c13-b3
keyword:
- fibre-reinforced polymers
- differential scanning calorimetry
- degree of crosslinking
- guided waves
- ultrasound
language:
- iso: eng
page: 235–238
place: Paderborn
publication: 2025 International Congress on Ultrasonics
publication_identifier:
isbn:
- 978-3-910600-08-9
publication_status: published
publisher: AMA Service GmbH
quality_controlled: '1'
status: public
title: Assessment of the influence of curing parameters on fibre reinforced epoxy
composite properties using guided ultrasonic waves
type: conference
user_id: '338'
year: '2025'
...
---
_id: '65097'
author:
- first_name: Daniel
full_name: Weber, Daniel
last_name: Weber
- first_name: Jarren
full_name: Lange, Jarren
last_name: Lange
- first_name: Oliver
full_name: Wallscheid, Oliver
last_name: Wallscheid
citation:
ama: 'Weber D, Lange J, Wallscheid O. Safe Reinforcement Learning-based Control
for a Voltage Source Inverter Operating in an Unbalanced Grid. In: 2025 IEEE
Kiel PowerTech. IEEE; 2025. doi:10.1109/powertech59965.2025.11180230'
apa: Weber, D., Lange, J., & Wallscheid, O. (2025). Safe Reinforcement Learning-based
Control for a Voltage Source Inverter Operating in an Unbalanced Grid. 2025
IEEE Kiel PowerTech. https://doi.org/10.1109/powertech59965.2025.11180230
bibtex: '@inproceedings{Weber_Lange_Wallscheid_2025, title={Safe Reinforcement Learning-based
Control for a Voltage Source Inverter Operating in an Unbalanced Grid}, DOI={10.1109/powertech59965.2025.11180230},
booktitle={2025 IEEE Kiel PowerTech}, publisher={IEEE}, author={Weber, Daniel
and Lange, Jarren and Wallscheid, Oliver}, year={2025} }'
chicago: Weber, Daniel, Jarren Lange, and Oliver Wallscheid. “Safe Reinforcement
Learning-Based Control for a Voltage Source Inverter Operating in an Unbalanced
Grid.” In 2025 IEEE Kiel PowerTech. IEEE, 2025. https://doi.org/10.1109/powertech59965.2025.11180230.
ieee: 'D. Weber, J. Lange, and O. Wallscheid, “Safe Reinforcement Learning-based
Control for a Voltage Source Inverter Operating in an Unbalanced Grid,” 2025,
doi: 10.1109/powertech59965.2025.11180230.'
mla: Weber, Daniel, et al. “Safe Reinforcement Learning-Based Control for a Voltage
Source Inverter Operating in an Unbalanced Grid.” 2025 IEEE Kiel PowerTech,
IEEE, 2025, doi:10.1109/powertech59965.2025.11180230.
short: 'D. Weber, J. Lange, O. Wallscheid, in: 2025 IEEE Kiel PowerTech, IEEE, 2025.'
date_created: 2026-03-23T15:32:40Z
date_updated: 2026-03-23T15:33:16Z
department:
- _id: '34'
- _id: '52'
doi: 10.1109/powertech59965.2025.11180230
language:
- iso: eng
publication: 2025 IEEE Kiel PowerTech
publication_status: published
publisher: IEEE
status: public
title: Safe Reinforcement Learning-based Control for a Voltage Source Inverter Operating
in an Unbalanced Grid
type: conference
user_id: '24041'
year: '2025'
...
---
_id: '65102'
abstract:
- lang: eng
text: 'Efficient graph processing is essential for a wide range of applications.
Scalability and memory access patterns are still a challenge, especially with
the Breadth-First Search algorithm. This work focuses on leveraging HPC systems
with multiple GPUs available in a single node with peer-to-peer functionality
of the Intel oneAPI implementation of SYCL. We propose three GPU-based load-balancing
methods: work-group localisation for efficient data access, even workload distribution
for higher GPU occupancy, and a hybrid strided-access approach for heuristic balancing.
These methods ensure performance, portability, and productivity with a unified
codebase. Our proposed methodologies outperform state-of-the-art single-GPU implementations
based on CUDA on synthetic RMAT graphs. We analysed BFS performance across NVIDIA
A100, Intel Max 1550, and AMD MI300X GPUs, achieving a peak performance of 153.27
GTEPS on an RMAT25-64 graph using 8 GPUs on the NVIDIA A100. Furthermore, our
work demonstrates the capability to handle RMAT graphs up to scale 29, achieving
superior performance on synthetic graphs and competitive results on real-world
datasets.'
author:
- first_name: Kaan
full_name: Olgu, Kaan
last_name: Olgu
- first_name: Tobias
full_name: Kenter, Tobias
id: '3145'
last_name: Kenter
- first_name: Jose
full_name: Nunez-Yanez, Jose
last_name: Nunez-Yanez
- first_name: Simon
full_name: McIntosh-Smith, Simon
last_name: McIntosh-Smith
- first_name: Tom
full_name: Deakin, Tom
last_name: Deakin
citation:
ama: 'Olgu K, Kenter T, Nunez-Yanez J, McIntosh-Smith S, Deakin T. Towards Efficient
Load Balancing BFS on GPUs: One Code for AMD, Intel & Nvidia. In: Proceedings
of the SC ’25 Workshops of the International Conference for High Performance Computing,
Networking, Storage and Analysis. ACM; 2025. doi:10.1145/3731599.3767570'
apa: 'Olgu, K., Kenter, T., Nunez-Yanez, J., McIntosh-Smith, S., & Deakin, T.
(2025). Towards Efficient Load Balancing BFS on GPUs: One Code for AMD, Intel
& Nvidia. Proceedings of the SC ’25 Workshops of the International Conference
for High Performance Computing, Networking, Storage and Analysis. https://doi.org/10.1145/3731599.3767570'
bibtex: '@inproceedings{Olgu_Kenter_Nunez-Yanez_McIntosh-Smith_Deakin_2025, title={Towards
Efficient Load Balancing BFS on GPUs: One Code for AMD, Intel & Nvidia}, DOI={10.1145/3731599.3767570}, booktitle={Proceedings
of the SC ’25 Workshops of the International Conference for High Performance Computing,
Networking, Storage and Analysis}, publisher={ACM}, author={Olgu, Kaan and Kenter,
Tobias and Nunez-Yanez, Jose and McIntosh-Smith, Simon and Deakin, Tom}, year={2025}
}'
chicago: 'Olgu, Kaan, Tobias Kenter, Jose Nunez-Yanez, Simon McIntosh-Smith, and
Tom Deakin. “Towards Efficient Load Balancing BFS on GPUs: One Code for AMD, Intel
& Nvidia.” In Proceedings of the SC ’25 Workshops of the International
Conference for High Performance Computing, Networking, Storage and Analysis.
ACM, 2025. https://doi.org/10.1145/3731599.3767570.'
ieee: 'K. Olgu, T. Kenter, J. Nunez-Yanez, S. McIntosh-Smith, and T. Deakin, “Towards
Efficient Load Balancing BFS on GPUs: One Code for AMD, Intel & Nvidia,” 2025,
doi: 10.1145/3731599.3767570.'
mla: 'Olgu, Kaan, et al. “Towards Efficient Load Balancing BFS on GPUs: One Code
for AMD, Intel & Nvidia.” Proceedings of the SC ’25 Workshops of the International
Conference for High Performance Computing, Networking, Storage and Analysis,
ACM, 2025, doi:10.1145/3731599.3767570.'
short: 'K. Olgu, T. Kenter, J. Nunez-Yanez, S. McIntosh-Smith, T. Deakin, in: Proceedings
of the SC ’25 Workshops of the International Conference for High Performance Computing,
Networking, Storage and Analysis, ACM, 2025.'
date_created: 2026-03-24T09:05:22Z
date_updated: 2026-03-24T09:06:33Z
department:
- _id: '27'
- _id: '518'
doi: 10.1145/3731599.3767570
language:
- iso: eng
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: Proceedings of the SC '25 Workshops of the International Conference for
High Performance Computing, Networking, Storage and Analysis
publication_status: published
publisher: ACM
status: public
title: 'Towards Efficient Load Balancing BFS on GPUs: One Code for AMD, Intel & Nvidia'
type: conference
user_id: '3145'
year: '2025'
...
---
_id: '62981'
abstract:
- lang: eng
text: "Otus is a high-performance computing cluster that was launched in 2025 and
is operated by the Paderborn Center for Parallel Computing (PC2) at Paderborn
University in Germany. The system is part of the National High Performance Computing
(NHR) initiative. Otus complements the previous supercomputer Noctua 2, offering
approximately twice the computing power while retaining the three node types that
were characteristic of Noctua 2: 1) CPU compute nodes with different memory capacities,
2) high-end GPU nodes, and 3) HPC-grade FPGA nodes. On the Top500 list, which
ranks the 500 most powerful supercomputers in the world, Otus is in position 164
with the CPU partition and in position 255 with the GPU partition (June 2025).
On the Green500 list, ranking the 500 most energy-efficient supercomputers in
the world, Otus is in position 5 with the GPU partition (June 2025).\r\n\r\n\r\nThis
article provides a comprehensive overview of the system in terms of its hardware,
software, system integration, and its overall integration into the data center
building to ensure energy-efficient operation. The article aims to provide unique
insights for scientists using the system and for other centers operating HPC clusters.
The article will be continuously updated to reflect the latest system setup and
measurements. "
author:
- first_name: Sadaf
full_name: Ehtesabi, Sadaf
id: '116116'
last_name: Ehtesabi
- first_name: Manoar
full_name: Hossain, Manoar
id: '114619'
last_name: Hossain
orcid: https://orcid.org/0000-0002-0737-7981
- first_name: Tobias
full_name: Kenter, Tobias
id: '3145'
last_name: Kenter
- first_name: Andreas
full_name: Krawinkel, Andreas
id: '15275'
last_name: Krawinkel
- first_name: Lukas
full_name: Ostermann, Lukas
id: '69976'
last_name: Ostermann
- first_name: Christian
full_name: Plessl, Christian
id: '16153'
last_name: Plessl
orcid: 0000-0001-5728-9982
- first_name: Heinrich
full_name: Riebler, Heinrich
id: '8961'
last_name: Riebler
- first_name: Stefan
full_name: Rohde, Stefan
id: '34009'
last_name: Rohde
- first_name: Robert
full_name: Schade, Robert
id: '75963'
last_name: Schade
orcid: 0000-0002-6268-5397
- first_name: Michael
full_name: Schwarz, Michael
id: '5312'
last_name: Schwarz
- first_name: Jens
full_name: Simon, Jens
id: '15273'
last_name: Simon
- first_name: Nils
full_name: Winnwa, Nils
id: '61189'
last_name: Winnwa
- first_name: Alex
full_name: Wiens, Alex
id: '23522'
last_name: Wiens
orcid: 0000-0003-1764-9773
- first_name: Xin
full_name: Wu, Xin
id: '77439'
last_name: Wu
citation:
ama: Ehtesabi S, Hossain M, Kenter T, et al. Otus Supercomputer. Vol 1. Paderborn
Center for Parallel Computing (PC2); 2025. doi:10.48550/ARXIV.2512.07401
apa: Ehtesabi, S., Hossain, M., Kenter, T., Krawinkel, A., Ostermann, L., Plessl,
C., Riebler, H., Rohde, S., Schade, R., Schwarz, M., Simon, J., Winnwa, N., Wiens,
A., & Wu, X. (2025). Otus Supercomputer (Vol. 1). Paderborn Center
for Parallel Computing (PC2). https://doi.org/10.48550/ARXIV.2512.07401
bibtex: '@book{Ehtesabi_Hossain_Kenter_Krawinkel_Ostermann_Plessl_Riebler_Rohde_Schade_Schwarz_et
al._2025, place={Paderborn}, series={PC2 Technical Report Series}, title={Otus
Supercomputer}, volume={1}, DOI={10.48550/ARXIV.2512.07401},
publisher={Paderborn Center for Parallel Computing (PC2)}, author={Ehtesabi, Sadaf
and Hossain, Manoar and Kenter, Tobias and Krawinkel, Andreas and Ostermann, Lukas
and Plessl, Christian and Riebler, Heinrich and Rohde, Stefan and Schade, Robert
and Schwarz, Michael and et al.}, year={2025}, collection={PC2 Technical Report
Series} }'
chicago: 'Ehtesabi, Sadaf, Manoar Hossain, Tobias Kenter, Andreas Krawinkel, Lukas
Ostermann, Christian Plessl, Heinrich Riebler, et al. Otus Supercomputer.
Vol. 1. PC2 Technical Report Series. Paderborn: Paderborn Center for Parallel
Computing (PC2), 2025. https://doi.org/10.48550/ARXIV.2512.07401.'
ieee: 'S. Ehtesabi et al., Otus Supercomputer, vol. 1. Paderborn:
Paderborn Center for Parallel Computing (PC2), 2025.'
mla: Ehtesabi, Sadaf, et al. Otus Supercomputer. Paderborn Center for Parallel
Computing (PC2), 2025, doi:10.48550/ARXIV.2512.07401.
short: S. Ehtesabi, M. Hossain, T. Kenter, A. Krawinkel, L. Ostermann, C. Plessl,
H. Riebler, S. Rohde, R. Schade, M. Schwarz, J. Simon, N. Winnwa, A. Wiens, X.
Wu, Otus Supercomputer, Paderborn Center for Parallel Computing (PC2), Paderborn,
2025.
date_created: 2025-12-09T09:11:04Z
date_updated: 2026-03-25T11:50:31Z
ddc:
- '004'
department:
- _id: '27'
- _id: '518'
doi: 10.48550/ARXIV.2512.07401
file:
- access_level: open_access
content_type: application/pdf
creator: deffel
date_created: 2025-12-09T09:19:12Z
date_updated: 2026-03-25T11:50:30Z
file_id: '62982'
file_name: 2512.07401v1.pdf
file_size: 4535595
relation: main_file
file_date_updated: 2026-03-25T11:50:30Z
has_accepted_license: '1'
intvolume: ' 1'
keyword:
- Otus
- Supercomputer
- FPGA
- PC2
- Paderborn Center for Parallel Computing
- Noctua 2
- HPC
language:
- iso: eng
oa: '1'
page: '33'
place: Paderborn
publication_status: published
publisher: Paderborn Center for Parallel Computing (PC2)
report_number: PC2TR-2025-1
series_title: PC2 Technical Report Series
status: public
title: Otus Supercomputer
type: report
user_id: '23522'
volume: 1
year: '2025'
...
---
_id: '56131'
abstract:
- lang: eng
text: 'This article provides a comprehensive mathematical-didactic analysis of how
the highly relevant topic symmetry can be prepared for the university education
of PSTs. Methodologically, the analysis is embedded in a design research cycle
and serves as preparation for the actual design of learning activities. The procedure
of "specifying and structuring" learning objects is used and adapted in such a
way that, in addition to mathematical aspects, profession-oriented references
to school mathematics are also considered. An essential result of the analysis
is the formulation of so-called interface aspects to symmetry, which prove to
be helpful in establishing such references. '
article_type: original
author:
- first_name: Max
full_name: Hoffmann, Max
id: '32202'
last_name: Hoffmann
orcid: 0000-0002-6964-7123
citation:
ama: Hoffmann M. Symmetry as a Topic for the University Education of Pre-Service
Teachers. Recherches en Didactique des Mathématiques. 2025;45(2):85-120.
doi:10.46298/rdm.14256
apa: Hoffmann, M. (2025). Symmetry as a Topic for the University Education of Pre-Service
Teachers. Recherches En Didactique Des Mathématiques, 45(2), 85–120.
https://doi.org/10.46298/rdm.14256
bibtex: '@article{Hoffmann_2025, title={Symmetry as a Topic for the University Education
of Pre-Service Teachers}, volume={45}, DOI={10.46298/rdm.14256},
number={2}, journal={Recherches en Didactique des Mathématiques}, author={Hoffmann,
Max}, year={2025}, pages={85–120} }'
chicago: 'Hoffmann, Max. “Symmetry as a Topic for the University Education of Pre-Service
Teachers.” Recherches En Didactique Des Mathématiques 45, no. 2 (2025):
85–120. https://doi.org/10.46298/rdm.14256.'
ieee: 'M. Hoffmann, “Symmetry as a Topic for the University Education of Pre-Service
Teachers,” Recherches en Didactique des Mathématiques, vol. 45, no. 2,
pp. 85–120, 2025, doi: 10.46298/rdm.14256.'
mla: Hoffmann, Max. “Symmetry as a Topic for the University Education of Pre-Service
Teachers.” Recherches En Didactique Des Mathématiques, vol. 45, no. 2,
2025, pp. 85–120, doi:10.46298/rdm.14256.
short: M. Hoffmann, Recherches En Didactique Des Mathématiques 45 (2025) 85–120.
date_created: 2024-09-14T08:08:22Z
date_updated: 2026-03-30T13:52:29Z
department:
- _id: '97'
- _id: '643'
doi: 10.46298/rdm.14256
intvolume: ' 45'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://rdm.episciences.org/17761/pdf
oa: '1'
page: 85-120
publication: Recherches en Didactique des Mathématiques
publication_status: published
quality_controlled: '1'
status: public
title: Symmetry as a Topic for the University Education of Pre-Service Teachers
type: journal_article
user_id: '32202'
volume: 45
year: '2025'
...
---
_id: '65246'
author:
- first_name: Max
full_name: Hoffmann, Max
last_name: Hoffmann
citation:
ama: 'Hoffmann M. Using scriptwriting as a response format for interface tasks:
Exemplary analyses in the context of symmetry. In: Bosch M, Bolondi G, Carreira
S, Gaidoschik M, Spagnolo C, eds. Proceedings of the Fourteenth Congress of
the European Society for Research in Mathematics Education (CERME14). Free
University of Bozen-Bolzano and ERME; 2025:2245-2252.'
apa: 'Hoffmann, M. (2025). Using scriptwriting as a response format for interface
tasks: Exemplary analyses in the context of symmetry. In M. Bosch, G. Bolondi,
S. Carreira, M. Gaidoschik, & C. Spagnolo (Eds.), Proceedings of the Fourteenth
Congress of the European Society for Research in Mathematics Education (CERME14)
(pp. 2245–2252). Free University of Bozen-Bolzano and ERME.'
bibtex: '@inproceedings{Hoffmann_2025, title={Using scriptwriting as a response
format for interface tasks: Exemplary analyses in the context of symmetry}, booktitle={Proceedings
of the Fourteenth Congress of the European Society for Research in Mathematics
Education (CERME14)}, publisher={Free University of Bozen-Bolzano and ERME}, author={Hoffmann,
Max}, editor={Bosch, Marianna and Bolondi, Giorgio and Carreira, Susana and Gaidoschik,
Michael and Spagnolo, Camilla}, year={2025}, pages={2245–2252} }'
chicago: 'Hoffmann, Max. “Using Scriptwriting as a Response Format for Interface
Tasks: Exemplary Analyses in the Context of Symmetry.” In Proceedings of the
Fourteenth Congress of the European Society for Research in Mathematics Education
(CERME14), edited by Marianna Bosch, Giorgio Bolondi, Susana Carreira, Michael
Gaidoschik, and Camilla Spagnolo, 2245–52. Free University of Bozen-Bolzano and
ERME, 2025.'
ieee: 'M. Hoffmann, “Using scriptwriting as a response format for interface tasks:
Exemplary analyses in the context of symmetry,” in Proceedings of the Fourteenth
Congress of the European Society for Research in Mathematics Education (CERME14),
2025, pp. 2245–2252.'
mla: 'Hoffmann, Max. “Using Scriptwriting as a Response Format for Interface Tasks:
Exemplary Analyses in the Context of Symmetry.” Proceedings of the Fourteenth
Congress of the European Society for Research in Mathematics Education (CERME14),
edited by Marianna Bosch et al., Free University of Bozen-Bolzano and ERME, 2025,
pp. 2245–52.'
short: 'M. Hoffmann, in: M. Bosch, G. Bolondi, S. Carreira, M. Gaidoschik, C. Spagnolo
(Eds.), Proceedings of the Fourteenth Congress of the European Society for Research
in Mathematics Education (CERME14), Free University of Bozen-Bolzano and ERME,
2025, pp. 2245–2252.'
date_created: 2026-03-30T14:57:31Z
date_updated: 2026-03-30T15:03:09Z
department:
- _id: '97'
- _id: '643'
editor:
- first_name: Marianna
full_name: Bosch, Marianna
last_name: Bosch
- first_name: Giorgio
full_name: Bolondi, Giorgio
last_name: Bolondi
- first_name: Susana
full_name: Carreira, Susana
last_name: Carreira
- first_name: Michael
full_name: Gaidoschik, Michael
last_name: Gaidoschik
- first_name: Camilla
full_name: Spagnolo, Camilla
last_name: Spagnolo
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://hal.science/CERME14/hal-05237875v1
oa: '1'
page: 2245-2252
publication: Proceedings of the Fourteenth Congress of the European Society for Research
in Mathematics Education (CERME14)
publication_status: published
publisher: Free University of Bozen-Bolzano and ERME
quality_controlled: '1'
status: public
title: 'Using scriptwriting as a response format for interface tasks: Exemplary analyses
in the context of symmetry'
type: conference
user_id: '32202'
year: '2025'
...
---
_id: '63441'
author:
- first_name: Elmar
full_name: Moritzer, Elmar
id: '20531'
last_name: Moritzer
- first_name: Philipp
full_name: Brandes, Philipp
id: '70091'
last_name: Brandes
orcid: 0009-0005-9707-0885
- first_name: Maurice
full_name: Wittler, Maurice
id: '76071'
last_name: Wittler
- first_name: Leander
full_name: Claes, Leander
id: '11829'
last_name: Claes
orcid: 0000-0002-4393-268X
- first_name: Mareen
full_name: Wippermann, Mareen
id: '74624'
last_name: Wippermann
- first_name: Bernd
full_name: Henning, Bernd
id: '213'
last_name: Henning
citation:
ama: 'Moritzer E, Brandes P, Wittler M, Claes L, Wippermann M, Henning B. Non-destructive
fiber-matrix adhesion measurement of glass fiber reinforced thermoplastic composite
laminates using ultrasound. In: 40th International Conference of the Polymer
Processing Society. ; 2025.'
apa: Moritzer, E., Brandes, P., Wittler, M., Claes, L., Wippermann, M., & Henning,
B. (2025). Non-destructive fiber-matrix adhesion measurement of glass fiber reinforced
thermoplastic composite laminates using ultrasound. 40th International Conference
of the Polymer Processing Society.
bibtex: '@inproceedings{Moritzer_Brandes_Wittler_Claes_Wippermann_Henning_2025,
title={Non-destructive fiber-matrix adhesion measurement of glass fiber reinforced
thermoplastic composite laminates using ultrasound}, booktitle={40th International
Conference of the Polymer Processing Society}, author={Moritzer, Elmar and Brandes,
Philipp and Wittler, Maurice and Claes, Leander and Wippermann, Mareen and Henning,
Bernd}, year={2025} }'
chicago: Moritzer, Elmar, Philipp Brandes, Maurice Wittler, Leander Claes, Mareen
Wippermann, and Bernd Henning. “Non-Destructive Fiber-Matrix Adhesion Measurement
of Glass Fiber Reinforced Thermoplastic Composite Laminates Using Ultrasound.”
In 40th International Conference of the Polymer Processing Society, 2025.
ieee: E. Moritzer, P. Brandes, M. Wittler, L. Claes, M. Wippermann, and B. Henning,
“Non-destructive fiber-matrix adhesion measurement of glass fiber reinforced thermoplastic
composite laminates using ultrasound,” 2025.
mla: Moritzer, Elmar, et al. “Non-Destructive Fiber-Matrix Adhesion Measurement
of Glass Fiber Reinforced Thermoplastic Composite Laminates Using Ultrasound.”
40th International Conference of the Polymer Processing Society, 2025.
short: 'E. Moritzer, P. Brandes, M. Wittler, L. Claes, M. Wippermann, B. Henning,
in: 40th International Conference of the Polymer Processing Society, 2025.'
date_created: 2026-01-05T08:42:55Z
date_updated: 2026-03-30T14:20:00Z
department:
- _id: '9'
- _id: '321'
- _id: '367'
- _id: '49'
keyword:
- Faser-Kunststoff-Verbunde (FKV)
- Faserverstärkte Kunststoffe (FVK)
- Organobleche
- Ultraschall
language:
- iso: eng
project:
- _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: 40th International Conference of the Polymer Processing Society
status: public
title: Non-destructive fiber-matrix adhesion measurement of glass fiber reinforced
thermoplastic composite laminates using ultrasound
type: conference
user_id: '59363'
year: '2025'
...
---
_id: '59896'
abstract:
- lang: eng
text: We present an electronic-photonic co-designed Mach-Zehnder modulator with
linear segment drivers in a photonic SOI-CMOS technology with an EO 3-dB bandwidth
of ≥ 27 GHz and data transmission up to 64 Gbit/s without pre-emphasis.
author:
- first_name: Christian
full_name: Kress, Christian
id: '13256'
last_name: Kress
orcid: 0000-0002-4403-2237
- first_name: Tobias
full_name: Schwabe, Tobias
id: '39217'
last_name: Schwabe
- first_name: Martin Miroslavov
full_name: Mihaylov, Martin Miroslavov
id: '42449'
last_name: Mihaylov
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: '0000-0002-5950-6618 '
citation:
ama: Kress C, Schwabe T, Mihaylov MM, Scheytt JC. High-Speed Mach-Zehnder Modulator
with Linear Segmented On-Chip Drivers in Photonic 45nm SOI-CMOS Technology .
apa: 'Kress, C., Schwabe, T., Mihaylov, M. M., & Scheytt, J. C. (n.d.). High-Speed
Mach-Zehnder Modulator with Linear Segmented On-Chip Drivers in Photonic 45nm
SOI-CMOS Technology . CLEO: Conference on Lasers and Electro-Optics, Long
Beach, CA, USA.'
bibtex: '@inproceedings{Kress_Schwabe_Mihaylov_Scheytt, title={High-Speed Mach-Zehnder
Modulator with Linear Segmented On-Chip Drivers in Photonic 45nm SOI-CMOS Technology
}, author={Kress, Christian and Schwabe, Tobias and Mihaylov, Martin Miroslavov
and Scheytt, J. Christoph} }'
chicago: Kress, Christian, Tobias Schwabe, Martin Miroslavov Mihaylov, and J. Christoph
Scheytt. “High-Speed Mach-Zehnder Modulator with Linear Segmented On-Chip Drivers
in Photonic 45nm SOI-CMOS Technology ,” n.d.
ieee: 'C. Kress, T. Schwabe, M. M. Mihaylov, and J. C. Scheytt, “High-Speed Mach-Zehnder
Modulator with Linear Segmented On-Chip Drivers in Photonic 45nm SOI-CMOS Technology
,” presented at the CLEO: Conference on Lasers and Electro-Optics, Long Beach,
CA, USA.'
mla: Kress, Christian, et al. High-Speed Mach-Zehnder Modulator with Linear Segmented
On-Chip Drivers in Photonic 45nm SOI-CMOS Technology .
short: 'C. Kress, T. Schwabe, M.M. Mihaylov, J.C. Scheytt, in: n.d.'
conference:
end_date: 2025-05-09
location: Long Beach, CA, USA
name: 'CLEO: Conference on Lasers and Electro-Optics'
start_date: 2025-05-04
date_created: 2025-05-14T11:08:07Z
date_updated: 2026-03-31T09:06:49Z
department:
- _id: '58'
- _id: '623'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://ieeexplore.ieee.org/document/11190539
oa: '1'
project:
- _id: '175'
name: 'TRR 142 - C11: TRR 142 - Kompakte Photonenpaar-Quelle mit ultraschnellen
Modulatoren auf Basis von CMOS und LNOI (C11*)'
- _id: '302'
name: 'PONyDAC: SPP 2111 - PONyDAC II - Präziser Optischer Nyquist-Puls-Synthesizer
DAC'
publication_status: accepted
status: public
title: 'High-Speed Mach-Zehnder Modulator with Linear Segmented On-Chip Drivers in
Photonic 45nm SOI-CMOS Technology '
type: conference
user_id: '13256'
year: '2025'
...
---
_id: '53413'
abstract:
- lang: eng
text: "For negatively curved symmetric spaces it is known that the poles of the\r\nscattering
matrices defined via the standard intertwining operators for the\r\nspherical
principal representations of the isometry group are either given as\r\npoles of
the intertwining operators or as quantum resonances, i.e. poles of the\r\nmeromorphically
continued resolvents of the Laplace-Beltrami operator. We\r\nextend this result
to classical locally symmetric spaces of negative curvature\r\nwith convex-cocompact
fundamental group using results of Bunke and Olbrich. The\r\nmethod of proof forces
us to exclude the spectral parameters corresponding to\r\nsingular Poisson transforms."
article_type: original
author:
- first_name: Benjamin
full_name: Delarue, Benjamin
id: '70575'
last_name: Delarue
- first_name: Joachim
full_name: Hilgert, Joachim
id: '220'
last_name: Hilgert
citation:
ama: Delarue B, Hilgert J. Quantum resonances and scattering poles of classical
rank one locally symmetric spaces. Journal of Lie Theory. 35((4)):787--804.
apa: Delarue, B., & Hilgert, J. (n.d.). Quantum resonances and scattering poles
of classical rank one locally symmetric spaces. Journal of Lie Theory,
35((4)), 787--804.
bibtex: '@article{Delarue_Hilgert, title={Quantum resonances and scattering poles
of classical rank one locally symmetric spaces}, volume={35}, number={(4)}, journal={Journal
of Lie Theory}, author={Delarue, Benjamin and Hilgert, Joachim}, pages={787--804}
}'
chicago: 'Delarue, Benjamin, and Joachim Hilgert. “Quantum Resonances and Scattering
Poles of Classical Rank One Locally Symmetric Spaces.” Journal of Lie Theory
35, no. (4) (n.d.): 787--804.'
ieee: B. Delarue and J. Hilgert, “Quantum resonances and scattering poles of classical
rank one locally symmetric spaces,” Journal of Lie Theory, vol. 35, no.
(4), pp. 787--804.
mla: Delarue, Benjamin, and Joachim Hilgert. “Quantum Resonances and Scattering
Poles of Classical Rank One Locally Symmetric Spaces.” Journal of Lie Theory,
vol. 35, no. (4), pp. 787--804.
short: B. Delarue, J. Hilgert, Journal of Lie Theory 35 (n.d.) 787--804.
date_created: 2024-04-11T12:31:18Z
date_updated: 2026-03-31T09:07:17Z
department:
- _id: '548'
intvolume: ' 35'
issue: (4)
language:
- iso: eng
page: 787--804
publication: Journal of Lie Theory
publication_identifier:
issn:
- 0949-5932
publication_status: inpress
status: public
title: Quantum resonances and scattering poles of classical rank one locally symmetric
spaces
type: journal_article
user_id: '220'
volume: 35
year: '2025'
...
---
_id: '60504'
author:
- first_name: Tom
full_name: Nellius, Tom
last_name: Nellius
- first_name: Kevin
full_name: Henne, Kevin
id: '56918'
last_name: Henne
- first_name: Maximilian
full_name: Hartinger, Maximilian
last_name: Hartinger
- first_name: Lars
full_name: Meihost, Lars
id: '24769'
last_name: Meihost
- first_name: Tim
full_name: Hetkämper, Tim
id: '38123'
last_name: Hetkämper
- first_name: Henning
full_name: Zeipert, Henning
id: '32580'
last_name: Zeipert
- 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: 'Nellius T, Henne K, Hartinger M, et al. Ultrasonic phased array interface
using programmable I/O and microprocessor clock synchronisation. In: ; 2025. doi: 10.5162/SMSI2025/A5.4'
apa: Nellius, T., Henne, K., Hartinger, M., Meihost, L., Hetkämper, T., Zeipert,
H., Claes, L., & Henning, B. (2025). Ultrasonic phased array interface
using programmable I/O and microprocessor clock synchronisation. SMSI 2025,
Nürnberg. https://doi.org/ 10.5162/SMSI2025/A5.4
bibtex: '@inproceedings{Nellius_Henne_Hartinger_Meihost_Hetkämper_Zeipert_Claes_Henning_2025,
title={Ultrasonic phased array interface using programmable I/O and microprocessor
clock synchronisation}, DOI={
10.5162/SMSI2025/A5.4}, author={Nellius, Tom and Henne, Kevin and Hartinger,
Maximilian and Meihost, Lars and Hetkämper, Tim and Zeipert, Henning and Claes,
Leander and Henning, Bernd}, year={2025} }'
chicago: Nellius, Tom, Kevin Henne, Maximilian Hartinger, Lars Meihost, Tim Hetkämper,
Henning Zeipert, Leander Claes, and Bernd Henning. “Ultrasonic Phased Array Interface
Using Programmable I/O and Microprocessor Clock Synchronisation,” 2025. https://doi.org/ 10.5162/SMSI2025/A5.4.
ieee: 'T. Nellius et al., “Ultrasonic phased array interface using programmable
I/O and microprocessor clock synchronisation,” presented at the SMSI 2025, Nürnberg,
2025, doi: 10.5162/SMSI2025/A5.4.'
mla: Nellius, Tom, et al. Ultrasonic Phased Array Interface Using Programmable
I/O and Microprocessor Clock Synchronisation. 2025, doi: 10.5162/SMSI2025/A5.4.
short: 'T. Nellius, K. Henne, M. Hartinger, L. Meihost, T. Hetkämper, H. Zeipert,
L. Claes, B. Henning, in: 2025.'
conference:
end_date: 2025-05-08
location: Nürnberg
name: SMSI 2025
start_date: 2025-05-06
date_created: 2025-07-03T07:17:54Z
date_updated: 2026-04-08T08:51:39Z
department:
- _id: '49'
doi: ' 10.5162/SMSI2025/A5.4'
language:
- iso: eng
status: public
title: Ultrasonic phased array interface using programmable I/O and microprocessor
clock synchronisation
type: conference
user_id: '11829'
year: '2025'
...
---
_id: '64902'
abstract:
- lang: ger
text: 'Diese Dissertation behandelt die Entwicklung, Erprobung und Evaluation einer
mobilen Augmented Reality Anwendung (mAR-App) namens PEARL (Paderborner Elektrotechnik
AR Laborpraktikum), die als Vorbereitungsmaßnahme für elektrotechnische Laborpraktika
konzipiert wird. Ziel ist es, Studierenden eine zeitlich und örtlich flexible
Möglichkeit zu bieten, den realitätsnahen Umgang mit Laborgeräten - primär dem
Oszilloskop - zu erlernen. Die methodische Grundlage bilden der Makrozyklus von
Design-Based Research (DBR) als strukturierender Rahmen und das heuristische Modell
des Research Pentagons, das die Durchführung auf Mikroebene bestimmt. In insgesamt
vier Research Pentagons werden didaktische, technologische, motivationale und
evaluative Komponenten systematisch untersucht und weiterentwickelt. Das erste
Pentagon fokussiert die Entwicklung eines didaktisch fundierten Konzepts nach
dem Prinzip des Constructive Alignment, das Lernziele, Lernaktivitäten und Prüfungsformen
in fünf abgestufte Lernlevel überführt. Diese reichen von der initialen Orientierung
bis zur eigenständigen Problemlösung in einem freien Experimentiermodus. Im zweiten
Research Pentagon wird die technische Machbarkeit von Augmented - und Virtual
Reality (VR) im Laborumfeld anhand mehrerer funktionaler Prototypen evaluiert.
Während sich VR aufgrund technischer Einschränkungen als ungeeignet erweist, zeigt
AR - insbesondere in der markerlosen Ausführung mittels der Software Development
Kits (SDKs) ARCore und ARKit - ein hohes Potenzial für den praktischen Einsatz.
Im dritten Pentagon entsteht ein Onboarding-Modul, das auf die erste Version der
mobilen App (V0.17.01) aufsetzt und grundlegende Funktionen eines realen Oszilloskops
digital abbildet. Dabei werden Nutzer:innen schrittweise an das virtuelle Oszilloskop
herangeführt und lernen zugleich die zentralen Funktionen der mAR-App kennen.
Die Ergebnisse zeigen eine insgesamt neutrale bis leicht positive Nutzungserfahrung,
wobei technische Schwächen (z.B. Reaktionszeit oder Objektverankerung) die Effizienz
und Steuerbarkeit beeinträchtigen. Im Exkurs-Kapitel erfolgt eine Eye-Tracking-Studie
zur Untersuchung visueller Aufmerksamkeit und individueller Lösungsstrategien
von Expert:innen und Noviz:innen bei der Arbeit am realen Oszilloskop. Heatmaps
und Zeitverläufe in definierten Areas of Interest (AOI) liefern erste Hinweise
auf Unterschiede im Blickverhalten zwischen den Gruppen. Die algorithmischen Scanpfadanalysen
der Blickverläufe hingegen zeigen eine geringe Trennschärfe. Das Potenzial von
Eye-Tracking als Evaluationsmethode wird daher kritisch reflektiert, aber angesichts
technologischer Entwicklungen und verfügbarer Eye-Tracker in Mixed Reality (MR)
Brillen weiterhin als zukunftsrelevant eingeordnet. Die abschließende summative
Evaluation nutzt ein Prä‑Post-Test-Design mit Kontrollgruppenvergleich mit 70
Teilnehmenden, um die Lernwirksamkeit der überarbeiteten mAR-App mit klassischen
Materialien wie Videos und Handbüchern zu vergleichen. In der Interventionsgruppe
(IG) zeigen sich auf kognitiver und affektiver Ebene signifikant positive Veränderungen:
Die Leistungen steigen deutlich, insbesondere in den Taxonomiestufen Anwendung,
Verständnis und Analyse; zugleich nehmen experimentelles Selbstkonzept und experimentelles
Sachinteresse zu, während Überforderung und Ängstlichkeit im Hinblick auf die
Laborpraktika abnehmen. Als Einschränkung zeigt sich, dass die mAR-App keinen
klaren Vorsprung gegenüber der Kontrollgruppe (KG) erreicht, was sowohl auf die
sehr gut ausgearbeiteten Materialien und Videos der KG als auch auf technische
Begrenzungen der mobilen Umsetzung zurückzuführen ist: Kleine Displays, 2D-Oberflächen
für 3D-Geräte und unpräzise Touch-Interaktionen erschweren komplexe, feinmotorische
Aufgaben. In den begleitenden User Interface (UI) und User Experience (UX) Fragebögen
spiegeln sich diese Limitationen in gemischten Bewertungen der App wider. Die
Arbeit verdeutlicht, dass die mobile AR-Anwendung trotz technischer Einschränkungen
wertvolle Möglichkeiten für die Vorbereitung auf Laborpraktika und das Kennenlernen
von Laborgeräten bieten kann. Der Fokus bei der Entwicklung liegt von Beginn an
auf einer modularen und flexiblen App-Architektur, um sie mit neuen Geräten und
Aufgaben zu erweitern. Der Hauptnutzen liegt perspektivisch nicht in der mobilen
Anwendung selbst, sondern in der strategischen Ausrichtung auf zukunftsfähige,
skalierbare Lösungen für MR-Brillen. Diese erlauben eine authentische Gestensteuerung
und realitätsnahe Interaktionen.'
- lang: eng
text: 'This thesis examines the development, testing, and evaluation of a mobile
augmented reality application (mAR app), which is designed as a preparation tool
for electrical engineering laboratory courses. The aim is to offer students an
opportunity to work with laboratory equipment - primarily the oscilloscope - realistically
without location and time constraints. The methodological basis is formed by the
macrocycle of design-based research (DBR) as a structured framework and the heuristic
model of the research pentagon, which specifies the implementation at the micro
level. Didactic, technological, motivational, and evaluative components are systematically
examined and further developed in a total of four research pentagons. The first
pentagon focuses on the development of a didactically sound concept based on the
principle of constructive alignment, which incorporates learning objectives, learning
activities, and forms of assessment into five graduated learning levels. These
range from initial orientation to independent problem-solving in a free experimentation
mode. The second phase evaluates the technical feasibility of augmented and virtual
reality (VR) in the laboratory environment using several prototypes. While VR
turns out to be unsuitable due to technical limitations, AR - especially in the
markerless version using the ARCore and ARKit software development kits (SDKs)
- shows great potential for everyday use. In the third research pentagon, an onboarding
module is created based on the first version of the mobile app (V0.17.01), which
digitally maps the basic functions of a real oscilloscope. During this process,
users are introduced to the virtual oscilloscope and become familiar with the
main functions of the mAR app. The results show an overall neutral to slightly
positive user experience, although technical weaknesses (e.g., reaction time and
object fixing) negatively impact efficiency and controllability. In the fourth
research pentagon, an eye-tracking study is carried out to investigate visual
attention and individual solution strategies of expert and novice users when working
with real oscilloscopes. Heatmaps and time sequences in defined areas of interest
(AOI) provide first indications of differences in gaze behavior between the groups.
The algorithmic scan path analysis, on the other hand, reveals a low degree of
differentiation. The potential of eye tracking as an evaluation method is therefore
critically reflected, but it is still considered to be relevant for future studies
in light of technological advancements and the availability of eye trackers in
mixed reality (MR) glasses. The final summative evaluation is carried out in the
way of a pre-post test design with 70 participants and compares the usage of traditional
materials such as videos and manuals with the improved mAR app. In the intervention
group (IG), significant improvements emerge on both cognitive and affective levels:
performance increases particularly in the areas of application, understanding,
and analysis, while experimental self-concept and subject-related interest rise
and feelings of overload and anxiety regarding the lab courses decline. As a limitation,
the mAR app does not yield a clear advantage over the control group (CG), which
can be attributed both to the highly refined materials and videos used in the
CG and to technical constraints inherent to the mobile implementation: small displays,
2D interfaces on 3D devices, and imprecise touch interaction limit complex, sensitive
motor tasks. These limitations are also reflected in the accompanying user interface
(UI) and user experience (UX) questionnaires, which indicate mixed app ratings.
Both groups show significant learning gains - particularly in the areas of application,
understanding, and analysis. However, a significant advantage of the mAR App cannot
be proven. Affective characteristics such as experimental self-concept and general
experimental interests increase in both groups, while the feeling of fear before
conducting real laboratory work decreases. The app itself achieves average ratings
in user interface (UI) and user experience (UX) questionnaires. The thesis demonstrates
that, despite technical limitations, the mobile AR application can provide a valuable
alternative for preparing students for laboratory courses and familiarizing them
with laboratory equipment. From the very beginning, the primary goal during development
was a modular and flexible app architecture that can be extended with new devices,
tasks, and functions. The main benefit is not in the mobile application itself,
but in the strategic direction of future-oriented and scalable solutions for MR
glasses, which allow immersive and realistic gesture interactions.'
author:
- first_name: Mesut
full_name: Alptekin, Mesut
id: '11763'
last_name: Alptekin
orcid: 0009-0004-8545-1165
citation:
ama: Alptekin M. Entwicklung Einer Augmented Reality Basierten Anwendung Als
Vorbereitungsmaßnahme Zum Laborpraktikum in Der Elektrotechnik. LibreCat University;
2025. doi:10.17619/UNIPB/1-2483
apa: Alptekin, M. (2025). Entwicklung einer Augmented Reality basierten Anwendung
als Vorbereitungsmaßnahme zum Laborpraktikum in der Elektrotechnik. LibreCat
University. https://doi.org/10.17619/UNIPB/1-2483
bibtex: '@book{Alptekin_2025, title={Entwicklung einer Augmented Reality basierten
Anwendung als Vorbereitungsmaßnahme zum Laborpraktikum in der Elektrotechnik},
DOI={10.17619/UNIPB/1-2483},
publisher={LibreCat University}, author={Alptekin, Mesut}, year={2025} }'
chicago: Alptekin, Mesut. Entwicklung Einer Augmented Reality Basierten Anwendung
Als Vorbereitungsmaßnahme Zum Laborpraktikum in Der Elektrotechnik. LibreCat
University, 2025. https://doi.org/10.17619/UNIPB/1-2483.
ieee: M. Alptekin, Entwicklung einer Augmented Reality basierten Anwendung als
Vorbereitungsmaßnahme zum Laborpraktikum in der Elektrotechnik. LibreCat University,
2025.
mla: Alptekin, Mesut. Entwicklung Einer Augmented Reality Basierten Anwendung
Als Vorbereitungsmaßnahme Zum Laborpraktikum in Der Elektrotechnik. LibreCat
University, 2025, doi:10.17619/UNIPB/1-2483.
short: M. Alptekin, Entwicklung Einer Augmented Reality Basierten Anwendung Als
Vorbereitungsmaßnahme Zum Laborpraktikum in Der Elektrotechnik, LibreCat University,
2025.
date_created: 2026-03-11T11:05:08Z
date_updated: 2026-04-20T07:46:37Z
ddc:
- '620'
department:
- _id: '34'
- _id: '3'
- _id: '300'
doi: 10.17619/UNIPB/1-2483
publisher: LibreCat University
status: public
title: Entwicklung einer Augmented Reality basierten Anwendung als Vorbereitungsmaßnahme
zum Laborpraktikum in der Elektrotechnik
type: research_data
user_id: '14972'
year: '2025'
...
---
_id: '65466'
author:
- first_name: Fabian
full_name: Bäumer, Fabian
last_name: Bäumer
- first_name: Marcus
full_name: Brinkmann, Marcus
last_name: Brinkmann
- first_name: Maximilian
full_name: Radoy, Maximilian
last_name: Radoy
- first_name: Jörg
full_name: Schwenk, Jörg
last_name: Schwenk
- first_name: Juraj
full_name: Somorovsky, Juraj
last_name: Somorovsky
citation:
ama: 'Bäumer F, Brinkmann M, Radoy M, Schwenk J, Somorovsky J. On the Security of
SSH Client Signatures. In: Proceedings of the 2025 ACM SIGSAC Conference on
Computer and Communications Security. ACM; 2025. doi:10.1145/3719027.3765079'
apa: Bäumer, F., Brinkmann, M., Radoy, M., Schwenk, J., & Somorovsky, J. (2025).
On the Security of SSH Client Signatures. Proceedings of the 2025 ACM SIGSAC
Conference on Computer and Communications Security. https://doi.org/10.1145/3719027.3765079
bibtex: '@inproceedings{Bäumer_Brinkmann_Radoy_Schwenk_Somorovsky_2025, title={On
the Security of SSH Client Signatures}, DOI={10.1145/3719027.3765079},
booktitle={Proceedings of the 2025 ACM SIGSAC Conference on Computer and Communications
Security}, publisher={ACM}, author={Bäumer, Fabian and Brinkmann, Marcus and Radoy,
Maximilian and Schwenk, Jörg and Somorovsky, Juraj}, year={2025} }'
chicago: Bäumer, Fabian, Marcus Brinkmann, Maximilian Radoy, Jörg Schwenk, and Juraj
Somorovsky. “On the Security of SSH Client Signatures.” In Proceedings of the
2025 ACM SIGSAC Conference on Computer and Communications Security. ACM, 2025.
https://doi.org/10.1145/3719027.3765079.
ieee: 'F. Bäumer, M. Brinkmann, M. Radoy, J. Schwenk, and J. Somorovsky, “On the
Security of SSH Client Signatures,” 2025, doi: 10.1145/3719027.3765079.'
mla: Bäumer, Fabian, et al. “On the Security of SSH Client Signatures.” Proceedings
of the 2025 ACM SIGSAC Conference on Computer and Communications Security,
ACM, 2025, doi:10.1145/3719027.3765079.
short: 'F. Bäumer, M. Brinkmann, M. Radoy, J. Schwenk, J. Somorovsky, in: Proceedings
of the 2025 ACM SIGSAC Conference on Computer and Communications Security, ACM,
2025.'
date_created: 2026-04-20T13:09:17Z
date_updated: 2026-04-20T13:09:29Z
department:
- _id: '632'
- _id: '632'
doi: 10.1145/3719027.3765079
publication: Proceedings of the 2025 ACM SIGSAC Conference on Computer and Communications
Security
publication_status: published
publisher: ACM
status: public
title: On the Security of SSH Client Signatures
type: conference
user_id: '68826'
year: '2025'
...