---
_id: '65777'
abstract:
- lang: eng
text: "Abstract\r\n In this work,
we address the numerical identification of entanglement in dynamical scenarios.
To this end, we consider different programs based on the restriction of the evolution
to the set of separable (i.e., non-entangled) states, together with the discretization
of the space of variables for numerical computations. As a first approach, we
apply linear splitting methods to the restricted, continuous equations of motion
derived from variational principles. We utilize an exchange interaction Hamiltonian
to confirm that the numerical and analytical solutions coincide in the limit of
small time steps. The application to different Hamiltonians shows the wide applicability
of the method to detect dynamical entanglement. To avoid the derivation of analytical
solutions for complex dynamics, we consider variational, numerical integration
schemes, introducing a variational discretization for Lagrangians linear in velocities.
Here, we examine and compare two approaches: one in which the system is discretized
before the restriction is applied, and another in which the restriction precedes
the discretization. We find that the ‘first-discretize-then-restrict’ method becomes
numerically unstable, already for the example of an exchange-interaction Hamiltonian,
which can be an important consideration for the numerical analysis of constrained
quantum dynamics. Thereby, broadly applicable numerical tools, including their
limitations, for studying entanglement over time are established for assessing
the entangling power of processes that are used in quantum information theory."
article_number: '225303'
author:
- first_name: Christian
full_name: Offen, Christian
last_name: Offen
- first_name: Boris Edgar
full_name: Wembe Moafo, Boris Edgar
id: '95394'
last_name: Wembe Moafo
orcid: 0000-0002-6085-8071
- first_name: Laura
full_name: Ares, Laura
last_name: Ares
- first_name: Jan
full_name: Sperling, Jan
id: '75127'
last_name: Sperling
orcid: 0000-0002-5844-3205
- first_name: Sina
full_name: Ober-Blöbaum, Sina
id: '16494'
last_name: Ober-Blöbaum
citation:
ama: 'Offen C, Wembe Moafo BE, Ares L, Sperling J, Ober-Blöbaum S. Numerical approaches
to entangling dynamics from variational principles. Journal of Physics A: Mathematical
and Theoretical. 2026;59(22). doi:10.1088/1751-8121/ae6d51'
apa: 'Offen, C., Wembe Moafo, B. E., Ares, L., Sperling, J., & Ober-Blöbaum,
S. (2026). Numerical approaches to entangling dynamics from variational principles.
Journal of Physics A: Mathematical and Theoretical, 59(22), Article
225303. https://doi.org/10.1088/1751-8121/ae6d51'
bibtex: '@article{Offen_Wembe Moafo_Ares_Sperling_Ober-Blöbaum_2026, title={Numerical
approaches to entangling dynamics from variational principles}, volume={59}, DOI={10.1088/1751-8121/ae6d51},
number={22225303}, journal={Journal of Physics A: Mathematical and Theoretical},
publisher={IOP Publishing}, author={Offen, Christian and Wembe Moafo, Boris Edgar
and Ares, Laura and Sperling, Jan and Ober-Blöbaum, Sina}, year={2026} }'
chicago: 'Offen, Christian, Boris Edgar Wembe Moafo, Laura Ares, Jan Sperling, and
Sina Ober-Blöbaum. “Numerical Approaches to Entangling Dynamics from Variational
Principles.” Journal of Physics A: Mathematical and Theoretical 59, no.
22 (2026). https://doi.org/10.1088/1751-8121/ae6d51.'
ieee: 'C. Offen, B. E. Wembe Moafo, L. Ares, J. Sperling, and S. Ober-Blöbaum, “Numerical
approaches to entangling dynamics from variational principles,” Journal of
Physics A: Mathematical and Theoretical, vol. 59, no. 22, Art. no. 225303,
2026, doi: 10.1088/1751-8121/ae6d51.'
mla: 'Offen, Christian, et al. “Numerical Approaches to Entangling Dynamics from
Variational Principles.” Journal of Physics A: Mathematical and Theoretical,
vol. 59, no. 22, 225303, IOP Publishing, 2026, doi:10.1088/1751-8121/ae6d51.'
short: 'C. Offen, B.E. Wembe Moafo, L. Ares, J. Sperling, S. Ober-Blöbaum, Journal
of Physics A: Mathematical and Theoretical 59 (2026).'
date_created: 2026-06-05T07:37:43Z
date_updated: 2026-06-05T07:38:44Z
department:
- _id: '623'
- _id: '15'
- _id: '170'
- _id: '706'
- _id: '429'
doi: 10.1088/1751-8121/ae6d51
intvolume: ' 59'
issue: '22'
language:
- iso: eng
publication: 'Journal of Physics A: Mathematical and Theoretical'
publication_identifier:
issn:
- 1751-8113
- 1751-8121
publication_status: published
publisher: IOP Publishing
status: public
title: Numerical approaches to entangling dynamics from variational principles
type: journal_article
user_id: '75127'
volume: 59
year: '2026'
...
---
_id: '65476'
abstract:
- lang: eng
text: Service research has evolved into an interdisciplinary research field that
bridges diverse disciplines, including information systems (IS) and marketing.
Nearly two decades ago, the service system concept was introduced as a foundational
abstraction in service research, drawing on ideas from the service-dominant logic
(S-D logic) of marketing. Despite its widespread adoption in service research,
particularly in the IS discipline, the service system concept lacks a solid theoretical
foundation. This has resulted in conceptual ambiguity and overlap with related
constructs, such as service ecosystems. Moreover, it has largely remained a static
analytical lens, insufficiently capturing dynamic service phenomena, including
value co-creation and co-destruction, as well as the emergence of institutional
arrangements. To address these limitations, we propose Luhmann’s systems theory
(LST) as a robust framework for conceptualizing service systems as autopoietic
(self-creating) systems, in which communication serves as the fundamental mechanism
that drives value co-creation. We derive five theoretical propositions from this
re-conceptualization that clarify conceptual ambiguity and allow researchers to
explore dynamic service phenomena in greater depth. Given LST’s general approach,
our conceptualization provides a theoretically grounded, interdisciplinary foundation
for advancing service research.
article_number: '37'
article_type: original
author:
- first_name: Daniel
full_name: Beverungen, Daniel
last_name: Beverungen
- first_name: Jens
full_name: Poeppelbuss, Jens
last_name: Poeppelbuss
- first_name: Simon
full_name: Hemmrich, Simon
last_name: Hemmrich
- first_name: Taskeen
full_name: Iqbal, Taskeen
last_name: Iqbal
citation:
ama: Beverungen D, Poeppelbuss J, Hemmrich S, Iqbal T. Service through communication—Conceptualizing
service systems with Luhmann’s systems theory. Electronic Markets. 2026;36(1).
doi:10.1007/s12525-026-00889-w
apa: Beverungen, D., Poeppelbuss, J., Hemmrich, S., & Iqbal, T. (2026). Service
through communication—Conceptualizing service systems with Luhmann’s systems theory.
Electronic Markets, 36(1), Article 37. https://doi.org/10.1007/s12525-026-00889-w
bibtex: '@article{Beverungen_Poeppelbuss_Hemmrich_Iqbal_2026, title={Service through
communication—Conceptualizing service systems with Luhmann’s systems theory},
volume={36}, DOI={10.1007/s12525-026-00889-w},
number={137}, journal={Electronic Markets}, publisher={Springer Science and Business
Media LLC}, author={Beverungen, Daniel and Poeppelbuss, Jens and Hemmrich, Simon
and Iqbal, Taskeen}, year={2026} }'
chicago: Beverungen, Daniel, Jens Poeppelbuss, Simon Hemmrich, and Taskeen Iqbal.
“Service through Communication—Conceptualizing Service Systems with Luhmann’s
Systems Theory.” Electronic Markets 36, no. 1 (2026). https://doi.org/10.1007/s12525-026-00889-w.
ieee: 'D. Beverungen, J. Poeppelbuss, S. Hemmrich, and T. Iqbal, “Service through
communication—Conceptualizing service systems with Luhmann’s systems theory,”
Electronic Markets, vol. 36, no. 1, Art. no. 37, 2026, doi: 10.1007/s12525-026-00889-w.'
mla: Beverungen, Daniel, et al. “Service through Communication—Conceptualizing Service
Systems with Luhmann’s Systems Theory.” Electronic Markets, vol. 36, no.
1, 37, Springer Science and Business Media LLC, 2026, doi:10.1007/s12525-026-00889-w.
short: D. Beverungen, J. Poeppelbuss, S. Hemmrich, T. Iqbal, Electronic Markets
36 (2026).
date_created: 2026-04-21T13:13:02Z
date_updated: 2026-06-11T13:18:09Z
ddc:
- '380'
department:
- _id: '195'
- _id: '534'
doi: 10.1007/s12525-026-00889-w
file:
- access_level: closed
content_type: application/pdf
creator: dabe
date_created: 2026-04-21T13:14:30Z
date_updated: 2026-04-21T13:14:30Z
file_id: '65477'
file_name: Service is Communication - EM Paper.pdf
file_size: 2793039
relation: main_file
success: 1
file_date_updated: 2026-04-21T13:14:30Z
has_accepted_license: '1'
intvolume: ' 36'
issue: '1'
jel:
- L80
keyword:
- Service system
- Service ecosystem
- Systems theory
- Service research
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://link.springer.com/content/pdf/10.1007/s12525-026-00889-w.pdf
oa: '1'
project:
- _id: '1250'
name: 'SHAPE : Gestaltung von Dienstleistungsentwicklungsprozessen und lnnovationspartnerschaften
mit Unternehmen'
publication: Electronic Markets
publication_identifier:
issn:
- 1019-6781
- 1422-8890
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
status: public
title: Service through communication—Conceptualizing service systems with Luhmann’s
systems theory
type: journal_article
user_id: '59677'
volume: 36
year: '2026'
...
---
_id: '65901'
author:
- first_name: Hanna
full_name: Steffens, Hanna
last_name: Steffens
- first_name: Enes
full_name: Yigitbas, Enes
id: '8447'
last_name: Yigitbas
orcid: 0000-0002-5967-833X
- first_name: Stefan
full_name: Sauer, Stefan
id: '447'
last_name: Sauer
orcid: 0000-0003-3084-0409
citation:
ama: 'Steffens H, Yigitbas E, Sauer S. Effects of Vertical Price Placement on Consumer
Behaviour: A VR-Based Investigation Including Eye Tracking. In: Proceedings
of the 28th International Conference on Human-Computer Interaction (HCII 2026).
Springer; 2026.'
apa: 'Steffens, H., Yigitbas, E., & Sauer, S. (2026). Effects of Vertical Price
Placement on Consumer Behaviour: A VR-Based Investigation Including Eye Tracking.
Proceedings of the 28th International Conference on Human-Computer Interaction
(HCII 2026).'
bibtex: '@inproceedings{Steffens_Yigitbas_Sauer_2026, title={Effects of Vertical
Price Placement on Consumer Behaviour: A VR-Based Investigation Including Eye
Tracking}, booktitle={Proceedings of the 28th International Conference on Human-Computer
Interaction (HCII 2026)}, publisher={Springer}, author={Steffens, Hanna and Yigitbas,
Enes and Sauer, Stefan}, year={2026} }'
chicago: 'Steffens, Hanna, Enes Yigitbas, and Stefan Sauer. “Effects of Vertical
Price Placement on Consumer Behaviour: A VR-Based Investigation Including Eye
Tracking.” In Proceedings of the 28th International Conference on Human-Computer
Interaction (HCII 2026). Springer, 2026.'
ieee: 'H. Steffens, E. Yigitbas, and S. Sauer, “Effects of Vertical Price Placement
on Consumer Behaviour: A VR-Based Investigation Including Eye Tracking,” 2026.'
mla: 'Steffens, Hanna, et al. “Effects of Vertical Price Placement on Consumer Behaviour:
A VR-Based Investigation Including Eye Tracking.” Proceedings of the 28th International
Conference on Human-Computer Interaction (HCII 2026), Springer, 2026.'
short: 'H. Steffens, E. Yigitbas, S. Sauer, in: Proceedings of the 28th International
Conference on Human-Computer Interaction (HCII 2026), Springer, 2026.'
date_created: 2026-06-16T07:07:27Z
date_updated: 2026-06-16T07:07:38Z
department:
- _id: '66'
- _id: '534'
language:
- iso: eng
publication: Proceedings of the 28th International Conference on Human-Computer Interaction
(HCII 2026)
publisher: Springer
status: public
title: 'Effects of Vertical Price Placement on Consumer Behaviour: A VR-Based Investigation
Including Eye Tracking'
type: conference
user_id: '8447'
year: '2026'
...
---
_id: '65903'
author:
- first_name: Salah
full_name: Seidan, Salah
last_name: Seidan
- first_name: Enes
full_name: Yigitbas, Enes
id: '8447'
last_name: Yigitbas
orcid: 0000-0002-5967-833X
- first_name: Justus
full_name: Leichtweiß, Justus
last_name: Leichtweiß
citation:
ama: 'Seidan S, Yigitbas E, Leichtweiß J. Change Your Perspective - A VR Driving
Simulator to Enhance Safety Awareness in Public Road Traffic. In: Proceedings
of the 10th International Conference on Intelligent Computing and Virtual &
Augmented Reality Simulations (ICVARS 2026). IEEE; 2026.'
apa: Seidan, S., Yigitbas, E., & Leichtweiß, J. (2026). Change Your Perspective
- A VR Driving Simulator to Enhance Safety Awareness in Public Road Traffic. Proceedings
of the 10th International Conference on Intelligent Computing and Virtual &
Augmented Reality Simulations (ICVARS 2026).
bibtex: '@inproceedings{Seidan_Yigitbas_Leichtweiß_2026, title={Change Your Perspective
- A VR Driving Simulator to Enhance Safety Awareness in Public Road Traffic},
booktitle={Proceedings of the 10th International Conference on Intelligent Computing
and Virtual & Augmented Reality Simulations (ICVARS 2026)}, publisher={IEEE},
author={Seidan, Salah and Yigitbas, Enes and Leichtweiß, Justus}, year={2026}
}'
chicago: Seidan, Salah, Enes Yigitbas, and Justus Leichtweiß. “Change Your Perspective
- A VR Driving Simulator to Enhance Safety Awareness in Public Road Traffic.”
In Proceedings of the 10th International Conference on Intelligent Computing
and Virtual & Augmented Reality Simulations (ICVARS 2026). IEEE, 2026.
ieee: S. Seidan, E. Yigitbas, and J. Leichtweiß, “Change Your Perspective - A VR
Driving Simulator to Enhance Safety Awareness in Public Road Traffic,” 2026.
mla: Seidan, Salah, et al. “Change Your Perspective - A VR Driving Simulator to
Enhance Safety Awareness in Public Road Traffic.” Proceedings of the 10th International
Conference on Intelligent Computing and Virtual & Augmented Reality Simulations
(ICVARS 2026), IEEE, 2026.
short: 'S. Seidan, E. Yigitbas, J. Leichtweiß, in: Proceedings of the 10th International
Conference on Intelligent Computing and Virtual & Augmented Reality Simulations
(ICVARS 2026), IEEE, 2026.'
date_created: 2026-06-16T07:13:08Z
date_updated: 2026-06-16T07:13:44Z
department:
- _id: '66'
- _id: '534'
language:
- iso: eng
publication: Proceedings of the 10th International Conference on Intelligent Computing
and Virtual & Augmented Reality Simulations (ICVARS 2026)
publisher: IEEE
status: public
title: Change Your Perspective - A VR Driving Simulator to Enhance Safety Awareness
in Public Road Traffic
type: conference
user_id: '8447'
year: '2026'
...
---
_id: '65904'
author:
- first_name: Sarah Claudia
full_name: Krings, Sarah Claudia
id: '64063'
last_name: Krings
orcid: 0000-0001-8040-7553
- first_name: Enes
full_name: Yigitbas, Enes
id: '8447'
last_name: Yigitbas
orcid: 0000-0002-5967-833X
- first_name: Stefan
full_name: Sauer, Stefan
last_name: Sauer
citation:
ama: 'Krings SC, Yigitbas E, Sauer S. A Framework Supporting Context-Awareness for
Transitional Cross-Reality Applications. In: Proceedings of the 18th ACM SIGCHI
Symposium on Engineering Interactive Computing Systems (EICS 2026). ACM; 2026.'
apa: Krings, S. C., Yigitbas, E., & Sauer, S. (2026). A Framework Supporting
Context-Awareness for Transitional Cross-Reality Applications. Proceedings
of the 18th ACM SIGCHI Symposium on Engineering Interactive Computing Systems
(EICS 2026).
bibtex: '@inproceedings{Krings_Yigitbas_Sauer_2026, title={A Framework Supporting
Context-Awareness for Transitional Cross-Reality Applications}, booktitle={Proceedings
of the 18th ACM SIGCHI Symposium on Engineering Interactive Computing Systems
(EICS 2026)}, publisher={ACM}, author={Krings, Sarah Claudia and Yigitbas, Enes
and Sauer, Stefan}, year={2026} }'
chicago: Krings, Sarah Claudia, Enes Yigitbas, and Stefan Sauer. “A Framework Supporting
Context-Awareness for Transitional Cross-Reality Applications.” In Proceedings
of the 18th ACM SIGCHI Symposium on Engineering Interactive Computing Systems
(EICS 2026). ACM, 2026.
ieee: S. C. Krings, E. Yigitbas, and S. Sauer, “A Framework Supporting Context-Awareness
for Transitional Cross-Reality Applications,” 2026.
mla: Krings, Sarah Claudia, et al. “A Framework Supporting Context-Awareness for
Transitional Cross-Reality Applications.” Proceedings of the 18th ACM SIGCHI
Symposium on Engineering Interactive Computing Systems (EICS 2026), ACM, 2026.
short: 'S.C. Krings, E. Yigitbas, S. Sauer, in: Proceedings of the 18th ACM SIGCHI
Symposium on Engineering Interactive Computing Systems (EICS 2026), ACM, 2026.'
date_created: 2026-06-16T07:16:12Z
date_updated: 2026-06-16T07:16:46Z
department:
- _id: '66'
- _id: '534'
language:
- iso: eng
publication: Proceedings of the 18th ACM SIGCHI Symposium on Engineering Interactive
Computing Systems (EICS 2026)
publisher: ACM
status: public
title: A Framework Supporting Context-Awareness for Transitional Cross-Reality Applications
type: conference
user_id: '8447'
year: '2026'
...
---
_id: '65905'
author:
- first_name: Enes
full_name: Yigitbas, Enes
id: '8447'
last_name: Yigitbas
orcid: 0000-0002-5967-833X
- first_name: Alessio
full_name: Dell'Aquila, Alessio
last_name: Dell'Aquila
citation:
ama: 'Yigitbas E, Dell’Aquila A. Exploring the Dynamics of Authoring Interactive
VR Environments: Human Collaboration vs. AI Assistance. Proceedings of the
ACM on Human-Computer Interaction - EICS . Published online 2026.'
apa: 'Yigitbas, E., & Dell’Aquila, A. (2026). Exploring the Dynamics of Authoring
Interactive VR Environments: Human Collaboration vs. AI Assistance. Proceedings
of the ACM on Human-Computer Interaction - EICS .'
bibtex: '@article{Yigitbas_Dell’Aquila_2026, title={Exploring the Dynamics of Authoring
Interactive VR Environments: Human Collaboration vs. AI Assistance}, journal={Proceedings
of the ACM on Human-Computer Interaction - EICS }, publisher={ACM}, author={Yigitbas,
Enes and Dell’Aquila, Alessio}, year={2026} }'
chicago: 'Yigitbas, Enes, and Alessio Dell’Aquila. “Exploring the Dynamics of Authoring
Interactive VR Environments: Human Collaboration vs. AI Assistance.” Proceedings
of the ACM on Human-Computer Interaction - EICS , 2026.'
ieee: 'E. Yigitbas and A. Dell’Aquila, “Exploring the Dynamics of Authoring Interactive
VR Environments: Human Collaboration vs. AI Assistance,” Proceedings of the
ACM on Human-Computer Interaction - EICS , 2026.'
mla: 'Yigitbas, Enes, and Alessio Dell’Aquila. “Exploring the Dynamics of Authoring
Interactive VR Environments: Human Collaboration vs. AI Assistance.” Proceedings
of the ACM on Human-Computer Interaction - EICS , ACM, 2026.'
short: E. Yigitbas, A. Dell’Aquila, Proceedings of the ACM on Human-Computer Interaction
- EICS (2026).
date_created: 2026-06-16T07:19:59Z
date_updated: 2026-06-16T07:20:03Z
department:
- _id: '66'
- _id: '534'
language:
- iso: eng
publication: 'Proceedings of the ACM on Human-Computer Interaction - EICS '
publisher: ACM
status: public
title: 'Exploring the Dynamics of Authoring Interactive VR Environments: Human Collaboration
vs. AI Assistance'
type: journal_article
user_id: '8447'
year: '2026'
...
---
_id: '66437'
author:
- first_name: Sarah Claudia
full_name: Krings, Sarah Claudia
id: '64063'
last_name: Krings
orcid: 0000-0001-8040-7553
citation:
ama: 'Krings SC. Cross-Reality Context Awareness. In: Lecture Notes in Computer
Science. Springer Nature Switzerland; 2026. doi:10.1007/978-3-032-26051-2_4'
apa: Krings, S. C. (2026). Cross-Reality Context Awareness. In Lecture Notes
in Computer Science. Springer Nature Switzerland. https://doi.org/10.1007/978-3-032-26051-2_4
bibtex: '@inbook{Krings_2026, place={Cham}, title={Cross-Reality Context Awareness},
DOI={10.1007/978-3-032-26051-2_4},
booktitle={Lecture Notes in Computer Science}, publisher={Springer Nature Switzerland},
author={Krings, Sarah Claudia}, year={2026} }'
chicago: 'Krings, Sarah Claudia. “Cross-Reality Context Awareness.” In Lecture
Notes in Computer Science. Cham: Springer Nature Switzerland, 2026. https://doi.org/10.1007/978-3-032-26051-2_4.'
ieee: 'S. C. Krings, “Cross-Reality Context Awareness,” in Lecture Notes in Computer
Science, Cham: Springer Nature Switzerland, 2026.'
mla: Krings, Sarah Claudia. “Cross-Reality Context Awareness.” Lecture Notes
in Computer Science, Springer Nature Switzerland, 2026, doi:10.1007/978-3-032-26051-2_4.
short: 'S.C. Krings, in: Lecture Notes in Computer Science, Springer Nature Switzerland,
Cham, 2026.'
date_created: 2026-07-10T13:19:35Z
date_updated: 2026-07-10T13:21:27Z
department:
- _id: '534'
doi: 10.1007/978-3-032-26051-2_4
language:
- iso: eng
main_file_link:
- url: https://link.springer.com/chapter/10.1007/978-3-032-26051-2_4
place: Cham
publication: Lecture Notes in Computer Science
publication_identifier:
isbn:
- '9783032260505'
- '9783032260512'
issn:
- 0302-9743
- 1611-3349
publication_status: published
publisher: Springer Nature Switzerland
status: public
title: Cross-Reality Context Awareness
type: book_chapter
user_id: '64063'
year: '2026'
...
---
_id: '66687'
abstract:
- lang: eng
text: With a range of consumer devices available, augmented reality (AR) continues
to make its way into everyday life and is also increasingly used in professional
and sensitive contexts. Especially collaborative use cases, such as remote meetings
or maintenance, offer potential, but also move issues in the area of privacy and
security into focus. We conducted a scoping review to gain an overview of the
current situation and found a lack of clear standards, with most approaches focusing
on single protection features. Using the knowledge from the scoping review, we
set up and conducted expert interviews. They revealed that end-users are almost
completely dependent on developers or device manufacturers regarding their options
for protection. The interviews also showed that most developers put little focus
on privacy and security, often due to external constraints, such as employers
treating the topic as an “afterthought” and not budgeting enough time for it.
The experts suggested offering better software support to developers to enable
the inclusion of privacy and security with less overhead as a solution. It was
also suggested that a general rise in privacy and security awareness could improve
the overall situation.
author:
- first_name: Sarah Claudia
full_name: Krings, Sarah Claudia
id: '64063'
last_name: Krings
orcid: 0000-0001-8040-7553
- first_name: Enes
full_name: Yigitbas, Enes
id: '8447'
last_name: Yigitbas
orcid: 0000-0002-5967-833X
- first_name: Stefan
full_name: Sauer, Stefan
id: '447'
last_name: Sauer
orcid: 0000-0003-3084-0409
citation:
ama: 'Krings SC, Yigitbas E, Sauer S. Perspectives on Privacy and Security in Collaborative
AR - Insights from a Scoping Review and an Expert Interview Study. In: Maciel
C, Spano DL, Ardito C, Freire A, Prates R, eds. Blending Experiences in Interaction
Design. Springer Nature Switzerland; 2026:253–276.'
apa: Krings, S. C., Yigitbas, E., & Sauer, S. (2026). Perspectives on Privacy
and Security in Collaborative AR - Insights from a Scoping Review and an Expert
Interview Study. In C. Maciel, D. L. Spano, C. Ardito, A. Freire, & R. Prates
(Eds.), Blending Experiences in Interaction Design (pp. 253–276). Springer
Nature Switzerland.
bibtex: '@inproceedings{Krings_Yigitbas_Sauer_2026, place={Cham}, title={Perspectives
on Privacy and Security in Collaborative AR - Insights from a Scoping Review and
an Expert Interview Study}, booktitle={Blending Experiences in Interaction Design},
publisher={Springer Nature Switzerland}, author={Krings, Sarah Claudia and Yigitbas,
Enes and Sauer, Stefan}, editor={Maciel, Cristiano and Spano, Davide Lucio and
Ardito, Carmelo and Freire, André and Prates, Raquel}, year={2026}, pages={253–276}
}'
chicago: 'Krings, Sarah Claudia, Enes Yigitbas, and Stefan Sauer. “Perspectives
on Privacy and Security in Collaborative AR - Insights from a Scoping Review and
an Expert Interview Study.” In Blending Experiences in Interaction Design,
edited by Cristiano Maciel, Davide Lucio Spano, Carmelo Ardito, André Freire,
and Raquel Prates, 253–276. Cham: Springer Nature Switzerland, 2026.'
ieee: S. C. Krings, E. Yigitbas, and S. Sauer, “Perspectives on Privacy and Security
in Collaborative AR - Insights from a Scoping Review and an Expert Interview Study,”
in Blending Experiences in Interaction Design, 2026, pp. 253–276.
mla: Krings, Sarah Claudia, et al. “Perspectives on Privacy and Security in Collaborative
AR - Insights from a Scoping Review and an Expert Interview Study.” Blending
Experiences in Interaction Design, edited by Cristiano Maciel et al., Springer
Nature Switzerland, 2026, pp. 253–276.
short: 'S.C. Krings, E. Yigitbas, S. Sauer, in: C. Maciel, D.L. Spano, C. Ardito,
A. Freire, R. Prates (Eds.), Blending Experiences in Interaction Design, Springer
Nature Switzerland, Cham, 2026, pp. 253–276.'
date_created: 2026-08-10T09:39:10Z
date_updated: 2026-08-13T09:38:27Z
department:
- _id: '66'
- _id: '534'
editor:
- first_name: Cristiano
full_name: Maciel, Cristiano
last_name: Maciel
- first_name: Davide Lucio
full_name: Spano, Davide Lucio
last_name: Spano
- first_name: Carmelo
full_name: Ardito, Carmelo
last_name: Ardito
- first_name: André
full_name: Freire, André
last_name: Freire
- first_name: Raquel
full_name: Prates, Raquel
last_name: Prates
language:
- iso: eng
page: 253–276
place: Cham
publication: Blending Experiences in Interaction Design
publication_identifier:
isbn:
- 978-3-032-22934-2
publisher: Springer Nature Switzerland
status: public
title: Perspectives on Privacy and Security in Collaborative AR - Insights from a
Scoping Review and an Expert Interview Study
type: conference
user_id: '8447'
year: '2026'
...
---
_id: '66688'
author:
- first_name: Dennis
full_name: Wüppelmann, Dennis
id: '92503'
last_name: Wüppelmann
orcid: 0009-0008-8979-1457
- first_name: Enes
full_name: Yigitbas, Enes
id: '8447'
last_name: Yigitbas
orcid: 0000-0002-5967-833X
citation:
ama: 'Wüppelmann D, Yigitbas E. SecCityVR: Visualization and Collaborative Exploration
of Software Vulnerabilities in Virtual Reality. GI - Software Engineering .
Published online 2026. doi:10.18420/se2026_53'
apa: 'Wüppelmann, D., & Yigitbas, E. (2026). SecCityVR: Visualization and Collaborative
Exploration of Software Vulnerabilities in Virtual Reality. GI - Software Engineering
. https://doi.org/10.18420/se2026_53'
bibtex: '@article{Wüppelmann_Yigitbas_2026, title={SecCityVR: Visualization and
Collaborative Exploration of Software Vulnerabilities in Virtual Reality}, DOI={10.18420/se2026_53}, journal={GI
- Software Engineering }, publisher={Gesellschaft für Informatik, Bonn}, author={Wüppelmann,
Dennis and Yigitbas, Enes}, year={2026} }'
chicago: 'Wüppelmann, Dennis, and Enes Yigitbas. “SecCityVR: Visualization and Collaborative
Exploration of Software Vulnerabilities in Virtual Reality.” GI - Software
Engineering , 2026. https://doi.org/10.18420/se2026_53.'
ieee: 'D. Wüppelmann and E. Yigitbas, “SecCityVR: Visualization and Collaborative
Exploration of Software Vulnerabilities in Virtual Reality,” GI - Software
Engineering , 2026, doi: 10.18420/se2026_53.'
mla: 'Wüppelmann, Dennis, and Enes Yigitbas. “SecCityVR: Visualization and Collaborative
Exploration of Software Vulnerabilities in Virtual Reality.” GI - Software
Engineering , Gesellschaft für Informatik, Bonn, 2026, doi:10.18420/se2026_53.'
short: D. Wüppelmann, E. Yigitbas, GI - Software Engineering (2026).
date_created: 2026-08-10T09:49:48Z
date_updated: 2026-08-13T09:39:18Z
department:
- _id: '66'
- _id: '534'
doi: 10.18420/se2026_53
language:
- iso: eng
publication: 'GI - Software Engineering '
publication_identifier:
issn:
- 2944-7682
publisher: Gesellschaft für Informatik, Bonn
status: public
title: 'SecCityVR: Visualization and Collaborative Exploration of Software Vulnerabilities
in Virtual Reality'
type: journal_article
user_id: '8447'
year: '2026'
...
---
_id: '66854'
abstract:
- lang: eng
text: |-
Abstract
Investigating the real-time interplay between language and vision has traditionally involved a trade-off between experimental control and interactive setups. To address this challenge, we present a methodological framework that embeds the visual world paradigm (VWP) within a continuous, goal-directed human–robot interaction (HRI) task. By augmenting VWP in an HRI setup to produce standardized yet responsive verbal and non-verbal behaviours, the framework makes it possible to selectively examine comprehension, production, actions and their relation to visual attention in real-time. We demonstrate the utility of the framework through a proof-of-concept manipulating action structure, specifically path and manner, as well as other-initiated repair formats, namely open and restricted requests. The findings show that the setup reliably captures time-locked referential gaze dynamics following comprehension and preceding production processes. They further indicate that differences in action history systematically influence speakers’ pre-verbal cognitive processes and their subsequent linguistic choices. These findings suggest that HRI can provide a useful methodological middle ground to investigate language processes online in a tightly controlled setup without disrupting the interaction. More broadly, the framework offers a test bed for examining whether established psycholinguistic findings extend to HRI setups. At the same time, it provides HRI researchers with an empirical basis for developing adaptive agents informed by online language-vision interaction theories.
article_number: '112'
author:
- first_name: Amit
full_name: Singh, Amit
last_name: Singh
- first_name: Katharina J.
full_name: Rohlfing, Katharina J.
last_name: Rohlfing
citation:
ama: Singh A, Rohlfing KJ. A Methodological Framework for Studying Online Language–Vision
Interplay in Human–Robot Interaction. Journal of Psycholinguistic Research.
2026;55(5). doi:10.1007/s10936-026-10296-z
apa: Singh, A., & Rohlfing, K. J. (2026). A Methodological Framework for Studying
Online Language–Vision Interplay in Human–Robot Interaction. Journal of Psycholinguistic
Research, 55(5), Article 112. https://doi.org/10.1007/s10936-026-10296-z
bibtex: '@article{Singh_Rohlfing_2026, title={A Methodological Framework for Studying
Online Language–Vision Interplay in Human–Robot Interaction}, volume={55}, DOI={10.1007/s10936-026-10296-z},
number={5112}, journal={Journal of Psycholinguistic Research}, publisher={Springer
Science and Business Media LLC}, author={Singh, Amit and Rohlfing, Katharina J.},
year={2026} }'
chicago: Singh, Amit, and Katharina J. Rohlfing. “A Methodological Framework for
Studying Online Language–Vision Interplay in Human–Robot Interaction.” Journal
of Psycholinguistic Research 55, no. 5 (2026). https://doi.org/10.1007/s10936-026-10296-z.
ieee: 'A. Singh and K. J. Rohlfing, “A Methodological Framework for Studying Online
Language–Vision Interplay in Human–Robot Interaction,” Journal of Psycholinguistic
Research, vol. 55, no. 5, Art. no. 112, 2026, doi: 10.1007/s10936-026-10296-z.'
mla: Singh, Amit, and Katharina J. Rohlfing. “A Methodological Framework for Studying
Online Language–Vision Interplay in Human–Robot Interaction.” Journal of Psycholinguistic
Research, vol. 55, no. 5, 112, Springer Science and Business Media LLC, 2026,
doi:10.1007/s10936-026-10296-z.
short: A. Singh, K.J. Rohlfing, Journal of Psycholinguistic Research 55 (2026).
date_created: 2026-08-26T10:28:57Z
date_updated: 2026-08-26T10:30:40Z
department:
- _id: '749'
- _id: '660'
doi: 10.1007/s10936-026-10296-z
intvolume: ' 55'
issue: '5'
language:
- iso: eng
publication: Journal of Psycholinguistic Research
publication_identifier:
issn:
- 0090-6905
- 1573-6555
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: A Methodological Framework for Studying Online Language–Vision Interplay in
Human–Robot Interaction
type: journal_article
user_id: '91018'
volume: 55
year: '2026'
...
---
_id: '66856'
abstract:
- lang: eng
text: |-
Abstract
Goals are central to human actions: In fact, human actions are organized toward goals. Already early in human development, human perception becomes biased to goal-directed actions. A characteristic of social interaction is that goals can be shared among involved agents. This is a great benefit for designing sXAI as it allows explanation goals to be collaboratively negotiated. Even more, depending on the goal, users could be dynamically but minimalistically supported in their autonomous actions. Future sXAI developments can benefit from this chapter by recognizing how essential goals are and that they constitute an intersection of individual actions and social ecologies.
author:
- first_name: Katharina J.
full_name: Rohlfing, Katharina J.
last_name: Rohlfing
- first_name: Amit
full_name: Singh, Amit
last_name: Singh
- first_name: André
full_name: Groß, André
last_name: Groß
- first_name: Britta
full_name: Wrede, Britta
last_name: Wrede
citation:
ama: 'Rohlfing KJ, Singh A, Groß A, Wrede B. Explanation Goals. In: Social Explainable
AI. Springer Nature Singapore; 2026. doi:10.1007/978-981-96-5290-7_6'
apa: Rohlfing, K. J., Singh, A., Groß, A., & Wrede, B. (2026). Explanation Goals.
In Social Explainable AI. Springer Nature Singapore. https://doi.org/10.1007/978-981-96-5290-7_6
bibtex: '@inbook{Rohlfing_Singh_Groß_Wrede_2026, place={Singapore}, title={Explanation
Goals}, DOI={10.1007/978-981-96-5290-7_6},
booktitle={Social Explainable AI}, publisher={Springer Nature Singapore}, author={Rohlfing,
Katharina J. and Singh, Amit and Groß, André and Wrede, Britta}, year={2026} }'
chicago: 'Rohlfing, Katharina J., Amit Singh, André Groß, and Britta Wrede. “Explanation
Goals.” In Social Explainable AI. Singapore: Springer Nature Singapore,
2026. https://doi.org/10.1007/978-981-96-5290-7_6.'
ieee: 'K. J. Rohlfing, A. Singh, A. Groß, and B. Wrede, “Explanation Goals,” in
Social Explainable AI, Singapore: Springer Nature Singapore, 2026.'
mla: Rohlfing, Katharina J., et al. “Explanation Goals.” Social Explainable AI,
Springer Nature Singapore, 2026, doi:10.1007/978-981-96-5290-7_6.
short: 'K.J. Rohlfing, A. Singh, A. Groß, B. Wrede, in: Social Explainable AI, Springer
Nature Singapore, Singapore, 2026.'
date_created: 2026-08-26T10:34:18Z
date_updated: 2026-08-26T10:34:27Z
department:
- _id: '749'
- _id: '660'
doi: 10.1007/978-981-96-5290-7_6
language:
- iso: eng
place: Singapore
publication: Social Explainable AI
publication_identifier:
isbn:
- '9789819652891'
- '9789819652907'
publication_status: published
publisher: Springer Nature Singapore
status: public
title: Explanation Goals
type: book_chapter
user_id: '91018'
year: '2026'
...
---
_id: '66855'
article_number: '106977'
author:
- first_name: Eugenia
full_name: Wildt, Eugenia
last_name: Wildt
- first_name: Amit
full_name: Singh, Amit
last_name: Singh
- first_name: Katharina J.
full_name: Rohlfing, Katharina J.
last_name: Rohlfing
citation:
ama: Wildt E, Singh A, Rohlfing KJ. Infants’ individual sensitivity to saliency
shapes early word learning in social interaction. Acta Psychologica. 2026;266.
doi:10.1016/j.actpsy.2026.106977
apa: Wildt, E., Singh, A., & Rohlfing, K. J. (2026). Infants’ individual sensitivity
to saliency shapes early word learning in social interaction. Acta Psychologica,
266, Article 106977. https://doi.org/10.1016/j.actpsy.2026.106977
bibtex: '@article{Wildt_Singh_Rohlfing_2026, title={Infants’ individual sensitivity
to saliency shapes early word learning in social interaction}, volume={266}, DOI={10.1016/j.actpsy.2026.106977},
number={106977}, journal={Acta Psychologica}, publisher={Elsevier BV}, author={Wildt,
Eugenia and Singh, Amit and Rohlfing, Katharina J.}, year={2026} }'
chicago: Wildt, Eugenia, Amit Singh, and Katharina J. Rohlfing. “Infants’ Individual
Sensitivity to Saliency Shapes Early Word Learning in Social Interaction.” Acta
Psychologica 266 (2026). https://doi.org/10.1016/j.actpsy.2026.106977.
ieee: 'E. Wildt, A. Singh, and K. J. Rohlfing, “Infants’ individual sensitivity
to saliency shapes early word learning in social interaction,” Acta Psychologica,
vol. 266, Art. no. 106977, 2026, doi: 10.1016/j.actpsy.2026.106977.'
mla: Wildt, Eugenia, et al. “Infants’ Individual Sensitivity to Saliency Shapes
Early Word Learning in Social Interaction.” Acta Psychologica, vol. 266,
106977, Elsevier BV, 2026, doi:10.1016/j.actpsy.2026.106977.
short: E. Wildt, A. Singh, K.J. Rohlfing, Acta Psychologica 266 (2026).
date_created: 2026-08-26T10:32:13Z
date_updated: 2026-08-26T10:32:26Z
department:
- _id: '749'
- _id: '660'
doi: 10.1016/j.actpsy.2026.106977
intvolume: ' 266'
language:
- iso: eng
publication: Acta Psychologica
publication_identifier:
issn:
- 0001-6918
publication_status: published
publisher: Elsevier BV
status: public
title: Infants' individual sensitivity to saliency shapes early word learning in social
interaction
type: journal_article
user_id: '91018'
volume: 266
year: '2026'
...
---
_id: '61444'
abstract:
- lang: eng
text: Backchannels and fillers are important linguistic expressions in dialogue,
but often treated as "noise" to be bypassed in modern transformer-based language
models. Our work studies the representation of them in language models using three
fine-tuning strategies. The models are trained on three dialogue corpora in English
and Japanese, where backchannels and fillers are preserved and annotated, to investigate
how fine-tuning can help LMs learn their representations. We first apply clustering
analysis to the learnt representation of backchannels and fillers, and have found
increased silhouette scores in representations from fine-tuned models, which suggests
that fine-tuning enables LMs to distinguish the nuanced semantic variation in
different backchannel and filler use. We also use natural language generation
(NLG) metrics and qualitative analysis to confirm that the utterances generated
by fine-tuned language models resemble human-produced utterances more closely.
Our findings suggest the potentials of transforming general LMs into conversational
LMs that are more capable of producing human-like languages adequately.
author:
- first_name: Yu
full_name: Wang, Yu
last_name: Wang
- first_name: Leyi
full_name: Lao, Leyi
last_name: Lao
- first_name: Langchu
full_name: Huang, Langchu
last_name: Huang
- first_name: Gabriel
full_name: Skantze, Gabriel
last_name: Skantze
- first_name: Yang
full_name: Xu, Yang
last_name: Xu
- first_name: Hendrik
full_name: Buschmeier, Hendrik
id: '76456'
last_name: Buschmeier
orcid: 0000-0002-9613-5713
citation:
ama: 'Wang Y, Lao L, Huang L, Skantze G, Xu Y, Buschmeier H. Investigating the representation
of backchannels and fillers in fine-tuned language models. In: Proceedings
of the 64th Annual Meeting of the Association for Computational Linguistics.
Association for Computational Linguistics; 2026:5319-5348. doi:10.18653/v1/2026.acl-long.241'
apa: Wang, Y., Lao, L., Huang, L., Skantze, G., Xu, Y., & Buschmeier, H. (2026).
Investigating the representation of backchannels and fillers in fine-tuned language
models. Proceedings of the 64th Annual Meeting of the Association for Computational
Linguistics, 5319–5348. https://doi.org/10.18653/v1/2026.acl-long.241
bibtex: '@inproceedings{Wang_Lao_Huang_Skantze_Xu_Buschmeier_2026, place={San Diego,
CA, USA}, title={Investigating the representation of backchannels and fillers
in fine-tuned language models}, DOI={10.18653/v1/2026.acl-long.241},
booktitle={Proceedings of the 64th Annual Meeting of the Association for Computational
Linguistics}, publisher={Association for Computational Linguistics}, author={Wang,
Yu and Lao, Leyi and Huang, Langchu and Skantze, Gabriel and Xu, Yang and Buschmeier,
Hendrik}, year={2026}, pages={5319–5348} }'
chicago: 'Wang, Yu, Leyi Lao, Langchu Huang, Gabriel Skantze, Yang Xu, and Hendrik
Buschmeier. “Investigating the Representation of Backchannels and Fillers in Fine-Tuned
Language Models.” In Proceedings of the 64th Annual Meeting of the Association
for Computational Linguistics, 5319–48. San Diego, CA, USA: Association for
Computational Linguistics, 2026. https://doi.org/10.18653/v1/2026.acl-long.241.'
ieee: 'Y. Wang, L. Lao, L. Huang, G. Skantze, Y. Xu, and H. Buschmeier, “Investigating
the representation of backchannels and fillers in fine-tuned language models,”
in Proceedings of the 64th Annual Meeting of the Association for Computational
Linguistics, San Diego, CA, USA, 2026, pp. 5319–5348, doi: 10.18653/v1/2026.acl-long.241.'
mla: Wang, Yu, et al. “Investigating the Representation of Backchannels and Fillers
in Fine-Tuned Language Models.” Proceedings of the 64th Annual Meeting of the
Association for Computational Linguistics, Association for Computational Linguistics,
2026, pp. 5319–48, doi:10.18653/v1/2026.acl-long.241.
short: 'Y. Wang, L. Lao, L. Huang, G. Skantze, Y. Xu, H. Buschmeier, in: Proceedings
of the 64th Annual Meeting of the Association for Computational Linguistics, Association
for Computational Linguistics, San Diego, CA, USA, 2026, pp. 5319–5348.'
conference:
end_date: 2026-07-07
location: San Diego, CA, USA
name: 64th Annual Meeting of the Association for Computational Linguistics
start_date: 2026-07-02
date_created: 2025-09-25T19:00:23Z
date_updated: 2026-07-01T19:43:27Z
department:
- _id: '660'
doi: 10.18653/v1/2026.acl-long.241
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2509.20237
oa: '1'
page: 5319-5348
place: San Diego, CA, USA
project:
- _id: '112'
name: 'TRR 318; TP A02: Verstehensprozess einer Erklärung beobachten und auswerten'
publication: Proceedings of the 64th Annual Meeting of the Association for Computational
Linguistics
publication_status: published
publisher: Association for Computational Linguistics
quality_controlled: '1'
status: public
title: Investigating the representation of backchannels and fillers in fine-tuned
language models
type: conference
user_id: '76456'
year: '2026'
...
---
_id: '65363'
abstract:
- lang: eng
text: 'Recent theoretical advancement of information density in natural language
has brought the following question on desk: To what degree does natural language
exhibit periodicity pattern in its encoded information? We address this question
by introducing a new method called AutoPeriod of Surprisal (APS). APS adopts a
canonical periodicity detection algorithm and is able to identify any significant
periods that exist in the surprisal sequence of a single document. By applying
the algorithm to a set of corpora, we have obtained the following interesting
results: Firstly, a considerable proportion of human language demonstrates a strong
pattern of periodicity in information; Secondly, new periods that are outside
the distributions of typical structural units in text (e.g., sentence boundaries,
elementary discourse units, etc.) are found and further confirmed via harmonic
regression modeling. We conclude that the periodicity of information in language
is a joint outcome from both structured factors and other driving factors that
take effect at longer distances. The advantages of our periodicity detection method
and its potentials in LLM-generation detection are further discussed.'
author:
- first_name: Yulin
full_name: Ou, Yulin
last_name: Ou
- first_name: Yu
full_name: Wang, Yu
last_name: Wang
- first_name: Yang
full_name: Xu, Yang
last_name: Xu
- first_name: Hendrik
full_name: Buschmeier, Hendrik
id: '76456'
last_name: Buschmeier
orcid: 0000-0002-9613-5713
citation:
ama: 'Ou Y, Wang Y, Xu Y, Buschmeier H. Identifying the periodicity of information
in natural language. In: Proceedings of the 64th Annual Meeting of the Association
for Computational Linguistics. Association for Computational Linguistics;
2026:1161-1175. doi:10.18653/v1/2026.acl-long.52'
apa: Ou, Y., Wang, Y., Xu, Y., & Buschmeier, H. (2026). Identifying the periodicity
of information in natural language. Proceedings of the 64th Annual Meeting
of the Association for Computational Linguistics, 1161–1175. https://doi.org/10.18653/v1/2026.acl-long.52
bibtex: '@inproceedings{Ou_Wang_Xu_Buschmeier_2026, place={San Diego, CA, USA},
title={Identifying the periodicity of information in natural language}, DOI={10.18653/v1/2026.acl-long.52},
booktitle={Proceedings of the 64th Annual Meeting of the Association for Computational
Linguistics}, publisher={Association for Computational Linguistics}, author={Ou,
Yulin and Wang, Yu and Xu, Yang and Buschmeier, Hendrik}, year={2026}, pages={1161–1175}
}'
chicago: 'Ou, Yulin, Yu Wang, Yang Xu, and Hendrik Buschmeier. “Identifying the
Periodicity of Information in Natural Language.” In Proceedings of the 64th
Annual Meeting of the Association for Computational Linguistics, 1161–75.
San Diego, CA, USA: Association for Computational Linguistics, 2026. https://doi.org/10.18653/v1/2026.acl-long.52.'
ieee: 'Y. Ou, Y. Wang, Y. Xu, and H. Buschmeier, “Identifying the periodicity of
information in natural language,” in Proceedings of the 64th Annual Meeting
of the Association for Computational Linguistics, San Diego, CA, USA, 2026,
pp. 1161–1175, doi: 10.18653/v1/2026.acl-long.52.'
mla: Ou, Yulin, et al. “Identifying the Periodicity of Information in Natural Language.”
Proceedings of the 64th Annual Meeting of the Association for Computational
Linguistics, Association for Computational Linguistics, 2026, pp. 1161–75,
doi:10.18653/v1/2026.acl-long.52.
short: 'Y. Ou, Y. Wang, Y. Xu, H. Buschmeier, in: Proceedings of the 64th Annual
Meeting of the Association for Computational Linguistics, Association for Computational
Linguistics, San Diego, CA, USA, 2026, pp. 1161–1175.'
conference:
end_date: 2026-07-07
location: San Diego, CA, USA
name: 64th Annual Meeting of the Association for Computational Linguistics
start_date: 2026-07-02
date_created: 2026-04-07T09:52:23Z
date_updated: 2026-07-01T19:43:56Z
department:
- _id: '660'
doi: 10.18653/v1/2026.acl-long.52
language:
- iso: eng
page: 1161-1175
place: San Diego, CA, USA
project:
- _id: '2752'
name: 'TRR 318-2 - Project B07: Communicative practices of requesting information
and explanation from LLM-based agents'
publication: Proceedings of the 64th Annual Meeting of the Association for Computational
Linguistics
publication_status: published
publisher: Association for Computational Linguistics
quality_controlled: '1'
status: public
title: Identifying the periodicity of information in natural language
type: conference
user_id: '76456'
year: '2026'
...
---
_id: '66106'
abstract:
- lang: eng
text: Multimodal backchannels are fundamental to conversational grounding and understanding.
However, backchannels do not always transparently reflect the interlocutor's actual
cognitive state. “Incongruent backchannels”, where the observable feedback implies
understanding although there is no genuine understanding, are a potential source
of ambiguity in any interaction. Using acoustic, head movement, and discourse-related
data from 45 naturalistic dyadic interactions, we investigate whether incongruent
and congruent backchannels show systematically different properties using a classification
task. Results show that these backchannels are indeed separable based on multimodal
features. Incongruent backchannels are typically characterised by more neutral
head movement configurations and lower acoustic dynamism, while discursive cues
strongly influence the classification. Overall, the findings suggest a relatively
reduced effort in the signalling of incongruent backchannels.
author:
- first_name: Olcay
full_name: Türk, Olcay
last_name: Türk
- first_name: Stefan Teodorov
full_name: Lazarov, Stefan Teodorov
id: '90345'
last_name: Lazarov
orcid: 0009-0009-0892-9483
- first_name: Yu
full_name: Wang, Yu
last_name: Wang
- first_name: Angela
full_name: Grimminger, Angela
id: '57578'
last_name: Grimminger
- first_name: Hendrik
full_name: Buschmeier, Hendrik
id: '76456'
last_name: Buschmeier
orcid: 0000-0002-9613-5713
- first_name: Petra
full_name: Wagner, Petra
id: '74505'
last_name: Wagner
citation:
ama: 'Türk O, Lazarov ST, Wang Y, Grimminger A, Buschmeier H, Wagner P. When “yeah”
means “not quite”: Multimodal detection of backchannels expressing incomplete
understanding. In: Proceedings of INTERSPEECH 2026.'
apa: 'Türk, O., Lazarov, S. T., Wang, Y., Grimminger, A., Buschmeier, H., &
Wagner, P. (n.d.). When “yeah” means “not quite”: Multimodal detection of backchannels
expressing incomplete understanding. Proceedings of INTERSPEECH 2026. INTERSPEECH
2026, Sydney, Australia.'
bibtex: '@inproceedings{Türk_Lazarov_Wang_Grimminger_Buschmeier_Wagner, place={Sydney,
Australia}, title={When “yeah” means “not quite”: Multimodal detection of backchannels
expressing incomplete understanding}, booktitle={Proceedings of INTERSPEECH 2026},
author={Türk, Olcay and Lazarov, Stefan Teodorov and Wang, Yu and Grimminger,
Angela and Buschmeier, Hendrik and Wagner, Petra} }'
chicago: 'Türk, Olcay, Stefan Teodorov Lazarov, Yu Wang, Angela Grimminger, Hendrik
Buschmeier, and Petra Wagner. “When ‘Yeah’ Means ‘Not Quite’: Multimodal Detection
of Backchannels Expressing Incomplete Understanding.” In Proceedings of INTERSPEECH
2026. Sydney, Australia, n.d.'
ieee: 'O. Türk, S. T. Lazarov, Y. Wang, A. Grimminger, H. Buschmeier, and P. Wagner,
“When ‘yeah’ means ‘not quite’: Multimodal detection of backchannels expressing
incomplete understanding,” presented at the INTERSPEECH 2026, Sydney, Australia.'
mla: 'Türk, Olcay, et al. “When ‘Yeah’ Means ‘Not Quite’: Multimodal Detection of
Backchannels Expressing Incomplete Understanding.” Proceedings of INTERSPEECH
2026.'
short: 'O. Türk, S.T. Lazarov, Y. Wang, A. Grimminger, H. Buschmeier, P. Wagner,
in: Proceedings of INTERSPEECH 2026, Sydney, Australia, n.d.'
conference:
end_date: 2026-10-01
location: Sydney, Australia
name: INTERSPEECH 2026
start_date: 2026-09-27
date_created: 2026-07-01T19:44:35Z
date_updated: 2026-07-01T19:48:21Z
department:
- _id: '660'
language:
- iso: eng
place: Sydney, Australia
project:
- _id: '112'
name: 'TRR 318 - Projekt A02: Verstehensprozess einer Erklärung beobachten und auswerten'
publication: Proceedings of INTERSPEECH 2026
publication_status: accepted
quality_controlled: '1'
status: public
title: 'When “yeah” means “not quite”: Multimodal detection of backchannels expressing
incomplete understanding'
type: conference
user_id: '76456'
year: '2026'
...
---
_id: '66610'
author:
- first_name: Laura
full_name: Stojko, Laura
last_name: Stojko
- first_name: Eelco
full_name: Herder, Eelco
last_name: Herder
- first_name: Jannis
full_name: Strecker-Bischoff, Jannis
last_name: Strecker-Bischoff
- first_name: Julia Seitz
full_name: Sänger, Julia Seitz
last_name: Sänger
- first_name: Thomas
full_name: Neumayr, Thomas
last_name: Neumayr
- first_name: Enes
full_name: Yigitbas, Enes
id: '8447'
last_name: Yigitbas
orcid: 0000-0002-5967-833X
- first_name: Mirjam
full_name: Augstein, Mirjam
last_name: Augstein
citation:
ama: 'Stojko L, Herder E, Strecker-Bischoff J, et al. ABIS 2026: The Effects of
the Adaptive Web on Society. In: Balke W-T, Plötzky F, Spaniol M, et al., eds.
Companion Publication of the 2026 18th ACM Web Science Conference, WebSci Companion
2026, Braunschweig, Germany, May 26-29, 2026. ACM; 2026:108–109. doi:10.1145/3795513.3810983'
apa: 'Stojko, L., Herder, E., Strecker-Bischoff, J., Sänger, J. S., Neumayr, T.,
Yigitbas, E., & Augstein, M. (2026). ABIS 2026: The Effects of the Adaptive
Web on Society. In W.-T. Balke, F. Plötzky, M. Spaniol, E. Herder, L. Manikonda,
H. Liu, L.-D. Ibáñez, & R. Rezapour (Eds.), Companion Publication of the
2026 18th ACM Web Science Conference, WebSci Companion 2026, Braunschweig, Germany,
May 26-29, 2026 (pp. 108–109). ACM. https://doi.org/10.1145/3795513.3810983'
bibtex: '@inproceedings{Stojko_Herder_Strecker-Bischoff_Sänger_Neumayr_Yigitbas_Augstein_2026,
title={ABIS 2026: The Effects of the Adaptive Web on Society}, DOI={10.1145/3795513.3810983},
booktitle={Companion Publication of the 2026 18th ACM Web Science Conference,
WebSci Companion 2026, Braunschweig, Germany, May 26-29, 2026}, publisher={ACM},
author={Stojko, Laura and Herder, Eelco and Strecker-Bischoff, Jannis and Sänger,
Julia Seitz and Neumayr, Thomas and Yigitbas, Enes and Augstein, Mirjam}, editor={Balke,
Wolf-Tilo and Plötzky, Florian and Spaniol, Marc and Herder, Eelco and Manikonda,
Lydia and Liu, Haiming and Ibáñez, Luis-Daniel and Rezapour, Rezvaneh}, year={2026},
pages={108–109} }'
chicago: 'Stojko, Laura, Eelco Herder, Jannis Strecker-Bischoff, Julia Seitz Sänger,
Thomas Neumayr, Enes Yigitbas, and Mirjam Augstein. “ABIS 2026: The Effects of
the Adaptive Web on Society.” In Companion Publication of the 2026 18th ACM
Web Science Conference, WebSci Companion 2026, Braunschweig, Germany, May 26-29,
2026, edited by Wolf-Tilo Balke, Florian Plötzky, Marc Spaniol, Eelco Herder,
Lydia Manikonda, Haiming Liu, Luis-Daniel Ibáñez, and Rezvaneh Rezapour, 108–109.
ACM, 2026. https://doi.org/10.1145/3795513.3810983.'
ieee: 'L. Stojko et al., “ABIS 2026: The Effects of the Adaptive Web on Society,”
in Companion Publication of the 2026 18th ACM Web Science Conference, WebSci
Companion 2026, Braunschweig, Germany, May 26-29, 2026, 2026, pp. 108–109,
doi: 10.1145/3795513.3810983.'
mla: 'Stojko, Laura, et al. “ABIS 2026: The Effects of the Adaptive Web on Society.”
Companion Publication of the 2026 18th ACM Web Science Conference, WebSci Companion
2026, Braunschweig, Germany, May 26-29, 2026, edited by Wolf-Tilo Balke et
al., ACM, 2026, pp. 108–109, doi:10.1145/3795513.3810983.'
short: 'L. Stojko, E. Herder, J. Strecker-Bischoff, J.S. Sänger, T. Neumayr, E.
Yigitbas, M. Augstein, in: W.-T. Balke, F. Plötzky, M. Spaniol, E. Herder, L.
Manikonda, H. Liu, L.-D. Ibáñez, R. Rezapour (Eds.), Companion Publication of
the 2026 18th ACM Web Science Conference, WebSci Companion 2026, Braunschweig,
Germany, May 26-29, 2026, ACM, 2026, pp. 108–109.'
date_created: 2026-07-28T11:49:30Z
date_updated: 2026-07-28T11:49:52Z
department:
- _id: '66'
- _id: '534'
doi: 10.1145/3795513.3810983
editor:
- first_name: Wolf-Tilo
full_name: Balke, Wolf-Tilo
last_name: Balke
- first_name: Florian
full_name: Plötzky, Florian
last_name: Plötzky
- first_name: Marc
full_name: Spaniol, Marc
last_name: Spaniol
- first_name: Eelco
full_name: Herder, Eelco
last_name: Herder
- first_name: Lydia
full_name: Manikonda, Lydia
last_name: Manikonda
- first_name: Haiming
full_name: Liu, Haiming
last_name: Liu
- first_name: Luis-Daniel
full_name: Ibáñez, Luis-Daniel
last_name: Ibáñez
- first_name: Rezvaneh
full_name: Rezapour, Rezvaneh
last_name: Rezapour
language:
- iso: eng
page: 108–109
publication: Companion Publication of the 2026 18th ACM Web Science Conference, WebSci
Companion 2026, Braunschweig, Germany, May 26-29, 2026
publisher: ACM
status: public
title: 'ABIS 2026: The Effects of the Adaptive Web on Society'
type: conference
user_id: '8447'
year: '2026'
...
---
_id: '66665'
abstract:
- lang: eng
text: Multimode quantum light has promising applications in many areas of physics,
such as quantum communications and quantum computing. However, its multimode nature
also makes it challenging to measure its properties. Recently [I. Barakat et al.,
Optica Quantum 3, 36 (2025)], a technique for the simultaneous measurement of
squeezing of multiple broadband modes based on a phase-sensitive amplification
approach was experimentally implemented using a setup that effectively corresponds
to an SU(1,1) interferometer. Here, we aim to provide a complete theoretical analysis
of the modal structure of (generally unbalanced) SU(1,1) interferometers and a
detailed theoretical formal derivation of the framework for this technique. Utilizing
the joint Schmidt decomposition of the transfer functions, we investigate the
shape and phase profiles of the modes of the SU(1,1) interferometer and its components
[parametric down-conversion (PDC) sections] for different parametric gain regimes.
We discover a complicated interplay between the PDC modes and the modes of the
entire interferometer, and analyze it by using their overlap coefficients as a
similarity measure. Finally, we develop a rigorous processing method for the aforementioned
multimode squeezing measurement technique and discuss necessary approximations
to make this method experimentally feasible.
article_number: '033139'
article_type: original
author:
- first_name: Dennis
full_name: Scharwald, Dennis
id: '55907'
last_name: Scharwald
orcid: 0009-0007-5654-5412
- first_name: Polina
full_name: Sharapova, Polina
id: '60286'
last_name: Sharapova
citation:
ama: Scharwald D, Sharapova P. Characterization of spatial Schmidt modes in high-gain
SU(1,1) interferometers. Physical Review Research. 2026;8(3). doi:10.1103/ph64-ts39
apa: Scharwald, D., & Sharapova, P. (2026). Characterization of spatial Schmidt
modes in high-gain SU(1,1) interferometers. Physical Review Research, 8(3),
Article 033139. https://doi.org/10.1103/ph64-ts39
bibtex: '@article{Scharwald_Sharapova_2026, title={Characterization of spatial Schmidt
modes in high-gain SU(1,1) interferometers}, volume={8}, DOI={10.1103/ph64-ts39},
number={3033139}, journal={Physical Review Research}, publisher={American Physical
Society (APS)}, author={Scharwald, Dennis and Sharapova, Polina}, year={2026}
}'
chicago: Scharwald, Dennis, and Polina Sharapova. “Characterization of Spatial Schmidt
Modes in High-Gain SU(1,1) Interferometers.” Physical Review Research 8,
no. 3 (2026). https://doi.org/10.1103/ph64-ts39.
ieee: 'D. Scharwald and P. Sharapova, “Characterization of spatial Schmidt modes
in high-gain SU(1,1) interferometers,” Physical Review Research, vol. 8,
no. 3, Art. no. 033139, 2026, doi: 10.1103/ph64-ts39.'
mla: Scharwald, Dennis, and Polina Sharapova. “Characterization of Spatial Schmidt
Modes in High-Gain SU(1,1) Interferometers.” Physical Review Research,
vol. 8, no. 3, 033139, American Physical Society (APS), 2026, doi:10.1103/ph64-ts39.
short: D. Scharwald, P. Sharapova, Physical Review Research 8 (2026).
date_created: 2026-08-05T11:51:21Z
date_updated: 2026-08-12T14:29:44Z
department:
- _id: '975'
- _id: '15'
- _id: '623'
- _id: '569'
- _id: '170'
- _id: '35'
- _id: '429'
- _id: '34'
- _id: '502'
doi: 10.1103/ph64-ts39
intvolume: ' 8'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://journals.aps.org/prresearch/pdf/10.1103/ph64-ts39
oa: '1'
project:
- _id: '56'
name: TRR 142 - Project Area C
- _id: '53'
name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
zu funktionellen Strukturen'
- _id: '174'
name: 'TRR 142 ; TP: C10: Erzeugung und Charakterisierung von Quantenlicht in nichtlinearen
Systemen: Eine theoretische Analyse'
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: Physical Review Research
publication_identifier:
issn:
- 2643-1564
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Characterization of spatial Schmidt modes in high-gain SU(1,1) interferometers
type: journal_article
user_id: '55907'
volume: 8
year: '2026'
...
---
_id: '59835'
author:
- first_name: Lennart
full_name: Hustermeier, Lennart
last_name: Hustermeier
- first_name: Enes
full_name: Yigitbas, Enes
id: '8447'
last_name: Yigitbas
orcid: 0000-0002-5967-833X
citation:
ama: 'Hustermeier L, Yigitbas E. A Novel Approach for Controlling Drone Swarms:
Integrating LLMs and Augmented Reality. In: Proceedings of the 20th IFIP TC13
International Conference on Human-Computer Interaction (INTERACT 2025). Springer;
2025.'
apa: 'Hustermeier, L., & Yigitbas, E. (2025). A Novel Approach for Controlling
Drone Swarms: Integrating LLMs and Augmented Reality. Proceedings of the 20th
IFIP TC13 International Conference on Human-Computer Interaction (INTERACT 2025).'
bibtex: '@inproceedings{Hustermeier_Yigitbas_2025, title={A Novel Approach for Controlling
Drone Swarms: Integrating LLMs and Augmented Reality}, booktitle={Proceedings
of the 20th IFIP TC13 International Conference on Human-Computer Interaction (INTERACT
2025)}, publisher={Springer}, author={Hustermeier, Lennart and Yigitbas, Enes},
year={2025} }'
chicago: 'Hustermeier, Lennart, and Enes Yigitbas. “A Novel Approach for Controlling
Drone Swarms: Integrating LLMs and Augmented Reality.” In Proceedings of the
20th IFIP TC13 International Conference on Human-Computer Interaction (INTERACT
2025). Springer, 2025.'
ieee: 'L. Hustermeier and E. Yigitbas, “A Novel Approach for Controlling Drone Swarms:
Integrating LLMs and Augmented Reality,” 2025.'
mla: 'Hustermeier, Lennart, and Enes Yigitbas. “A Novel Approach for Controlling
Drone Swarms: Integrating LLMs and Augmented Reality.” Proceedings of the 20th
IFIP TC13 International Conference on Human-Computer Interaction (INTERACT 2025),
Springer, 2025.'
short: 'L. Hustermeier, E. Yigitbas, in: Proceedings of the 20th IFIP TC13 International
Conference on Human-Computer Interaction (INTERACT 2025), Springer, 2025.'
date_created: 2025-05-07T08:15:58Z
date_updated: 2025-05-07T08:16:15Z
department:
- _id: '66'
- _id: '534'
language:
- iso: eng
publication: Proceedings of the 20th IFIP TC13 International Conference on Human-Computer
Interaction (INTERACT 2025)
publisher: Springer
status: public
title: 'A Novel Approach for Controlling Drone Swarms: Integrating LLMs and Augmented
Reality'
type: conference
user_id: '8447'
year: '2025'
...
---
_id: '59833'
author:
- first_name: Dennis
full_name: Wüppelmann, Dennis
id: '92503'
last_name: Wüppelmann
orcid: 0009-0008-8979-1457
- first_name: Enes
full_name: Yigitbas, Enes
id: '8447'
last_name: Yigitbas
orcid: 0000-0002-5967-833X
citation:
ama: 'Wüppelmann D, Yigitbas E. SecCityVR: Visualization and Collaborative Exploration
of Software Vulnerabilities in Virtual Reality. In: Proceedings of the 29th
International Conference on Evaluation and Assessment in Software Engineering
(EASE 2025). ACM; 2025.'
apa: 'Wüppelmann, D., & Yigitbas, E. (2025). SecCityVR: Visualization and Collaborative
Exploration of Software Vulnerabilities in Virtual Reality. Proceedings of
the 29th International Conference on Evaluation and Assessment in Software Engineering
(EASE 2025).'
bibtex: '@inproceedings{Wüppelmann_Yigitbas_2025, title={SecCityVR: Visualization
and Collaborative Exploration of Software Vulnerabilities in Virtual Reality},
booktitle={Proceedings of the 29th International Conference on Evaluation and
Assessment in Software Engineering (EASE 2025)}, publisher={ACM}, author={Wüppelmann,
Dennis and Yigitbas, Enes}, year={2025} }'
chicago: 'Wüppelmann, Dennis, and Enes Yigitbas. “SecCityVR: Visualization and Collaborative
Exploration of Software Vulnerabilities in Virtual Reality.” In Proceedings
of the 29th International Conference on Evaluation and Assessment in Software
Engineering (EASE 2025). ACM, 2025.'
ieee: 'D. Wüppelmann and E. Yigitbas, “SecCityVR: Visualization and Collaborative
Exploration of Software Vulnerabilities in Virtual Reality,” 2025.'
mla: 'Wüppelmann, Dennis, and Enes Yigitbas. “SecCityVR: Visualization and Collaborative
Exploration of Software Vulnerabilities in Virtual Reality.” Proceedings of
the 29th International Conference on Evaluation and Assessment in Software Engineering
(EASE 2025), ACM, 2025.'
short: 'D. Wüppelmann, E. Yigitbas, in: Proceedings of the 29th International Conference
on Evaluation and Assessment in Software Engineering (EASE 2025), ACM, 2025.'
date_created: 2025-05-07T08:08:34Z
date_updated: 2025-05-13T06:59:22Z
department:
- _id: '66'
- _id: '534'
language:
- iso: eng
publication: Proceedings of the 29th International Conference on Evaluation and Assessment
in Software Engineering (EASE 2025)
publisher: ACM
status: public
title: 'SecCityVR: Visualization and Collaborative Exploration of Software Vulnerabilities
in Virtual Reality'
type: conference
user_id: '8447'
year: '2025'
...
---
_id: '59879'
author:
- first_name: Dennis
full_name: Wüppelmann, Dennis
id: '92503'
last_name: Wüppelmann
orcid: 0009-0008-8979-1457
- first_name: Sarah Claudia
full_name: Krings, Sarah Claudia
id: '64063'
last_name: Krings
orcid: 0000-0001-8040-7553
- first_name: Enes
full_name: Yigitbas, Enes
id: '8447'
last_name: Yigitbas
orcid: 0000-0002-5967-833X
citation:
ama: 'Wüppelmann D, Krings SC, Yigitbas E. SMART-EAT: Towards Sustainable Nutrition
Education and Decision Support using XR. In: Proceedings of the 11th International
Conference on Virtual Reality (ICVR 2025). IEEE; 2025.'
apa: 'Wüppelmann, D., Krings, S. C., & Yigitbas, E. (2025). SMART-EAT: Towards
Sustainable Nutrition Education and Decision Support using XR. Proceedings
of the 11th International Conference on Virtual Reality (ICVR 2025).'
bibtex: '@inproceedings{Wüppelmann_Krings_Yigitbas_2025, title={SMART-EAT: Towards
Sustainable Nutrition Education and Decision Support using XR}, booktitle={Proceedings
of the 11th International Conference on Virtual Reality (ICVR 2025)}, publisher={IEEE},
author={Wüppelmann, Dennis and Krings, Sarah Claudia and Yigitbas, Enes}, year={2025}
}'
chicago: 'Wüppelmann, Dennis, Sarah Claudia Krings, and Enes Yigitbas. “SMART-EAT:
Towards Sustainable Nutrition Education and Decision Support Using XR.” In Proceedings
of the 11th International Conference on Virtual Reality (ICVR 2025). IEEE,
2025.'
ieee: 'D. Wüppelmann, S. C. Krings, and E. Yigitbas, “SMART-EAT: Towards Sustainable
Nutrition Education and Decision Support using XR,” 2025.'
mla: 'Wüppelmann, Dennis, et al. “SMART-EAT: Towards Sustainable Nutrition Education
and Decision Support Using XR.” Proceedings of the 11th International Conference
on Virtual Reality (ICVR 2025), IEEE, 2025.'
short: 'D. Wüppelmann, S.C. Krings, E. Yigitbas, in: Proceedings of the 11th International
Conference on Virtual Reality (ICVR 2025), IEEE, 2025.'
date_created: 2025-05-13T06:58:55Z
date_updated: 2025-05-13T06:59:12Z
department:
- _id: '66'
- _id: '534'
language:
- iso: eng
publication: Proceedings of the 11th International Conference on Virtual Reality (ICVR
2025)
publisher: IEEE
status: public
title: 'SMART-EAT: Towards Sustainable Nutrition Education and Decision Support using
XR'
type: conference
user_id: '8447'
year: '2025'
...