---
_id: '65095'
abstract:
- lang: eng
text: "\r\n We provide experimental validation of tight
entropic uncertainty relations for the Shannon entropies of observables with mutually
unbiased eigenstates in high dimensions. In particular, we address the cases of
dimensions\r\n \r\n
\ \r\n d\r\n =\r\n
\ 3\r\n \r\n
\ \r\n , 4, and 5 and consider from
2 to\r\n \r\n
\ \r\n d\r\n +\r\n
\ 1\r\n \r\n
\ \r\n mutually unbiased bases.
The experiment is based on pulsed frequency bins measured with a multioutput quantum
pulse gate, which can perform projective measurements on a complete high-dimensional
basis in the time-frequency domain. Our results fit the theoretical predictions:
the bound on the sum of the entropies is never violated and is saturated by the
states that minimize the uncertainty relations.\r\n "
article_number: '032420'
author:
- first_name: Laura Maria
full_name: Serino, Laura Maria
id: '88242'
last_name: Serino
- first_name: Giovanni
full_name: Chesi, Giovanni
last_name: Chesi
- first_name: Benjamin
full_name: Brecht, Benjamin
id: '27150'
last_name: Brecht
orcid: '0000-0003-4140-0556 '
- first_name: Lorenzo
full_name: Maccone, Lorenzo
last_name: Maccone
- first_name: Chiara
full_name: Macchiavello, Chiara
last_name: Macchiavello
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: Serino LM, Chesi G, Brecht B, Maccone L, Macchiavello C, Silberhorn C. Experimental
entropic uncertainty relations in dimensions three to five. Physical Review
A. 2026;113(3). doi:10.1103/f6c4-jtlc
apa: Serino, L. M., Chesi, G., Brecht, B., Maccone, L., Macchiavello, C., &
Silberhorn, C. (2026). Experimental entropic uncertainty relations in dimensions
three to five. Physical Review A, 113(3), Article 032420. https://doi.org/10.1103/f6c4-jtlc
bibtex: '@article{Serino_Chesi_Brecht_Maccone_Macchiavello_Silberhorn_2026, title={Experimental
entropic uncertainty relations in dimensions three to five}, volume={113}, DOI={10.1103/f6c4-jtlc}, number={3032420},
journal={Physical Review A}, publisher={American Physical Society (APS)}, author={Serino,
Laura Maria and Chesi, Giovanni and Brecht, Benjamin and Maccone, Lorenzo and
Macchiavello, Chiara and Silberhorn, Christine}, year={2026} }'
chicago: Serino, Laura Maria, Giovanni Chesi, Benjamin Brecht, Lorenzo Maccone,
Chiara Macchiavello, and Christine Silberhorn. “Experimental Entropic Uncertainty
Relations in Dimensions Three to Five.” Physical Review A 113, no. 3 (2026).
https://doi.org/10.1103/f6c4-jtlc.
ieee: 'L. M. Serino, G. Chesi, B. Brecht, L. Maccone, C. Macchiavello, and C. Silberhorn,
“Experimental entropic uncertainty relations in dimensions three to five,” Physical
Review A, vol. 113, no. 3, Art. no. 032420, 2026, doi: 10.1103/f6c4-jtlc.'
mla: Serino, Laura Maria, et al. “Experimental Entropic Uncertainty Relations in
Dimensions Three to Five.” Physical Review A, vol. 113, no. 3, 032420,
American Physical Society (APS), 2026, doi:10.1103/f6c4-jtlc.
short: L.M. Serino, G. Chesi, B. Brecht, L. Maccone, C. Macchiavello, C. Silberhorn,
Physical Review A 113 (2026).
date_created: 2026-03-23T12:29:23Z
date_updated: 2026-03-25T07:59:36Z
department:
- _id: '15'
- _id: '623'
- _id: '288'
doi: 10.1103/f6c4-jtlc
intvolume: ' 113'
issue: '3'
language:
- iso: eng
publication: Physical Review A
publication_identifier:
issn:
- 2469-9926
- 2469-9934
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Experimental entropic uncertainty relations in dimensions three to five
type: journal_article
user_id: '27150'
volume: 113
year: '2026'
...
---
_id: '63721'
abstract:
- lang: eng
text: Defect engineering offers an effective route to tailor the local coordination
environment, gas transport and excited-state processes in metal-organic frameworks
(MOFs). We establish a quantitative structure-property relationship linking defect-modulated
porosity...
author:
- first_name: Zhenyu
full_name: Zhao, Zhenyu
last_name: Zhao
- first_name: Michael
full_name: Tiemann, Michael
id: '23547'
last_name: Tiemann
orcid: 0000-0003-1711-2722
citation:
ama: 'Zhao Z, Tiemann M. Defect Structure-Performance Correlation in Eu3+@UiO-66:
Design of Coordination Sites for Rapid Optical O₂ Sensing. Journal of Materials
Chemistry C. 2026;14:4743-4752. doi:10.1039/d5tc04319k'
apa: 'Zhao, Z., & Tiemann, M. (2026). Defect Structure-Performance Correlation
in Eu3+@UiO-66: Design of Coordination Sites for Rapid Optical
O₂ Sensing. Journal of Materials Chemistry C, 14, 4743–4752. https://doi.org/10.1039/d5tc04319k'
bibtex: '@article{Zhao_Tiemann_2026, title={Defect Structure-Performance Correlation
in Eu3+@UiO-66: Design of Coordination Sites for Rapid Optical
O₂ Sensing}, volume={14}, DOI={10.1039/d5tc04319k},
journal={Journal of Materials Chemistry C}, publisher={Royal Society of Chemistry
(RSC)}, author={Zhao, Zhenyu and Tiemann, Michael}, year={2026}, pages={4743–4752}
}'
chicago: 'Zhao, Zhenyu, and Michael Tiemann. “Defect Structure-Performance Correlation
in Eu3+@UiO-66: Design of Coordination Sites for Rapid Optical
O₂ Sensing.” Journal of Materials Chemistry C 14 (2026): 4743–52. https://doi.org/10.1039/d5tc04319k.'
ieee: 'Z. Zhao and M. Tiemann, “Defect Structure-Performance Correlation in Eu3+@UiO-66:
Design of Coordination Sites for Rapid Optical O₂ Sensing,” Journal of Materials
Chemistry C, vol. 14, pp. 4743–4752, 2026, doi: 10.1039/d5tc04319k.'
mla: 'Zhao, Zhenyu, and Michael Tiemann. “Defect Structure-Performance Correlation
in Eu3+@UiO-66: Design of Coordination Sites for Rapid Optical
O₂ Sensing.” Journal of Materials Chemistry C, vol. 14, Royal Society of
Chemistry (RSC), 2026, pp. 4743–52, doi:10.1039/d5tc04319k.'
short: Z. Zhao, M. Tiemann, Journal of Materials Chemistry C 14 (2026) 4743–4752.
date_created: 2026-01-23T13:26:36Z
date_updated: 2026-03-26T16:37:56Z
department:
- _id: '35'
- _id: '2'
- _id: '307'
doi: 10.1039/d5tc04319k
intvolume: ' 14'
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
page: 4743-4752
publication: Journal of Materials Chemistry C
publication_identifier:
issn:
- 2050-7526
- 2050-7534
publication_status: published
publisher: Royal Society of Chemistry (RSC)
quality_controlled: '1'
status: public
title: 'Defect Structure-Performance Correlation in Eu³⁺@UiO-66: Design of Coordination
Sites for Rapid Optical O₂ Sensing'
type: journal_article
user_id: '23547'
volume: 14
year: '2026'
...
---
_id: '65105'
author:
- first_name: Philipp
full_name: zur Heiden, Philipp
id: '64394'
last_name: zur Heiden
- first_name: Haya
full_name: Halimeh, Haya
id: '87673'
last_name: Halimeh
- first_name: Philipp
full_name: Hansmeier, Philipp
id: '55603'
last_name: Hansmeier
- first_name: Christian
full_name: Vorbohle, Christian
id: '29951'
last_name: Vorbohle
- first_name: Maike
full_name: Althaus, Maike
id: '61896'
last_name: Althaus
- first_name: Daniel
full_name: Beverungen, Daniel
id: '59677'
last_name: Beverungen
- first_name: Dennis
full_name: Kundisch, Dennis
id: '21117'
last_name: Kundisch
- first_name: Oliver
full_name: Müller, Oliver
id: '72849'
last_name: Müller
citation:
ama: zur Heiden P, Halimeh H, Hansmeier P, et al. Data Spaces for Heterogeneous
Data Ecosystems – Findings from a Design Study in the Cultural Sector. Communications
of the Association for Information Systems.
apa: zur Heiden, P., Halimeh, H., Hansmeier, P., Vorbohle, C., Althaus, M., Beverungen,
D., Kundisch, D., & Müller, O. (n.d.). Data Spaces for Heterogeneous Data
Ecosystems – Findings from a Design Study in the Cultural Sector. Communications
of the Association for Information Systems.
bibtex: '@article{zur Heiden_Halimeh_Hansmeier_Vorbohle_Althaus_Beverungen_Kundisch_Müller,
title={Data Spaces for Heterogeneous Data Ecosystems – Findings from a Design
Study in the Cultural Sector}, journal={Communications of the Association for
Information Systems}, author={zur Heiden, Philipp and Halimeh, Haya and Hansmeier,
Philipp and Vorbohle, Christian and Althaus, Maike and Beverungen, Daniel and
Kundisch, Dennis and Müller, Oliver} }'
chicago: Heiden, Philipp zur, Haya Halimeh, Philipp Hansmeier, Christian Vorbohle,
Maike Althaus, Daniel Beverungen, Dennis Kundisch, and Oliver Müller. “Data Spaces
for Heterogeneous Data Ecosystems – Findings from a Design Study in the Cultural
Sector.” Communications of the Association for Information Systems, n.d.
ieee: P. zur Heiden et al., “Data Spaces for Heterogeneous Data Ecosystems
– Findings from a Design Study in the Cultural Sector,” Communications of the
Association for Information Systems.
mla: zur Heiden, Philipp, et al. “Data Spaces for Heterogeneous Data Ecosystems
– Findings from a Design Study in the Cultural Sector.” Communications of the
Association for Information Systems.
short: P. zur Heiden, H. Halimeh, P. Hansmeier, C. Vorbohle, M. Althaus, D. Beverungen,
D. Kundisch, O. Müller, Communications of the Association for Information Systems
(n.d.).
date_created: 2026-03-24T13:31:24Z
date_updated: 2026-03-27T08:24:49Z
department:
- _id: '276'
- _id: '526'
- _id: '196'
language:
- iso: eng
project:
- _id: '160'
name: 'DatenraumKultur: Use Case 1 - Kulturplattformen - Datenraum Kultur'
publication: Communications of the Association for Information Systems
publication_status: accepted
status: public
title: Data Spaces for Heterogeneous Data Ecosystems – Findings from a Design Study
in the Cultural Sector
type: journal_article
user_id: '16205'
year: '2026'
...
---
_id: '65178'
abstract:
- lang: eng
text: "Large intermediate results can cause join queries to run unexpectedly long.
This problem is particularly common for analytical queries, which aggregate data
over many tables to produce a comparatively small final output, and queries on
graph data, where intermediate results blow up quickly. Recent work inspired by
Yannakakis’ algorithm approaches this by modifying the query engine to avoid materializing
unnecessary tuples. However, this requires significant changes to the core of
the system, which is not feasible in many situations such as cloud environments
or proprietary systems.\r\nIn this work, we propose a flexible approach for optimizing
long-running join queries from the outside of the DBMS. Rewriting-based realizations
of Yannakakis’ algorithm suffer from inherent overhead due to the creation of
intermediate tables. Thus, we present an approach for detecting and targeting
queries which would benefit from a Yannakakis-style optimization. We introduce
a new benchmark combining 5 standard benchmarks and augmenting them with additional
instances, which provides a sufficient size and diversity for a machine learning
based solution. On PostgreSQL, DuckDB and SparkSQL, slowdowns on queries where
the rewriting is counterproductive are mostly avoided, as opposed to a naïve application
of the rewriting, and we observe significant improvements in end-to-end runtimes
over standard query execution and unconditional rewriting."
author:
- first_name: Daniela
full_name: Böhm, Daniela
last_name: Böhm
- first_name: Georg
full_name: Gottlob, Georg
last_name: Gottlob
- first_name: Matthias
full_name: Lanzinger, Matthias
last_name: Lanzinger
- first_name: Davide Mario
full_name: Longo, Davide Mario
last_name: Longo
- first_name: Cem
full_name: Okulmus, Cem
id: '114410'
last_name: Okulmus
orcid: 0000-0002-7742-0439
- first_name: Reinhard
full_name: Pichler, Reinhard
last_name: Pichler
- first_name: Alexander
full_name: Selzer, Alexander
last_name: Selzer
citation:
ama: 'Böhm D, Gottlob G, Lanzinger M, et al. Selective Use of Yannakakis’ Algorithm
for Consistent Performance Gains. In: Proceedings of the 28th International
Workshop on Design, Optimization, Languages and Analytical Processing of Big Data
(DOLAP 2026). ; 2026.'
apa: Böhm, D., Gottlob, G., Lanzinger, M., Longo, D. M., Okulmus, C., Pichler, R.,
& Selzer, A. (2026). Selective Use of Yannakakis’ Algorithm for Consistent
Performance Gains. Proceedings of the 28th International Workshop on Design,
Optimization, Languages and Analytical Processing of Big Data (DOLAP 2026).
bibtex: '@inproceedings{Böhm_Gottlob_Lanzinger_Longo_Okulmus_Pichler_Selzer_2026,
place={Tampere, Finland}, title={Selective Use of Yannakakis’ Algorithm for Consistent
Performance Gains}, booktitle={Proceedings of the 28th International Workshop
on Design, Optimization, Languages and Analytical Processing of Big Data (DOLAP
2026)}, author={Böhm, Daniela and Gottlob, Georg and Lanzinger, Matthias and Longo,
Davide Mario and Okulmus, Cem and Pichler, Reinhard and Selzer, Alexander}, year={2026}
}'
chicago: Böhm, Daniela, Georg Gottlob, Matthias Lanzinger, Davide Mario Longo, Cem
Okulmus, Reinhard Pichler, and Alexander Selzer. “Selective Use of Yannakakis’
Algorithm for Consistent Performance Gains.” In Proceedings of the 28th International
Workshop on Design, Optimization, Languages and Analytical Processing of Big Data
(DOLAP 2026). Tampere, Finland, 2026.
ieee: D. Böhm et al., “Selective Use of Yannakakis’ Algorithm for Consistent
Performance Gains,” 2026.
mla: Böhm, Daniela, et al. “Selective Use of Yannakakis’ Algorithm for Consistent
Performance Gains.” Proceedings of the 28th International Workshop on Design,
Optimization, Languages and Analytical Processing of Big Data (DOLAP 2026),
2026.
short: 'D. Böhm, G. Gottlob, M. Lanzinger, D.M. Longo, C. Okulmus, R. Pichler, A.
Selzer, in: Proceedings of the 28th International Workshop on Design, Optimization,
Languages and Analytical Processing of Big Data (DOLAP 2026), Tampere, Finland,
2026.'
date_created: 2026-03-27T15:20:54Z
date_updated: 2026-03-27T15:22:01Z
department:
- _id: '888'
keyword:
- Join Queries
- Acyclic Queries
- Query Processing
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://ceur-ws.org/Vol-4186/paper2.pdf
oa: '1'
place: Tampere, Finland
publication: Proceedings of the 28th International Workshop on Design, Optimization,
Languages and Analytical Processing of Big Data (DOLAP 2026)
status: public
title: Selective Use of Yannakakis’ Algorithm for Consistent Performance Gains
type: conference
user_id: '114410'
year: '2026'
...
---
_id: '65179'
article_type: original
author:
- first_name: Christian
full_name: Fuchs, Christian
id: '21863'
last_name: Fuchs
orcid: 0000-0003-0589-4579
citation:
ama: 'Fuchs C. Reason and Communication: Jürgen Habermas’s Legacy for Media and
Communication Studies. tripleC: Communication, Capitalism & Critique.
2026;24(1):54-72. doi:10.31269/7112an90'
apa: 'Fuchs, C. (2026). Reason and Communication: Jürgen Habermas’s Legacy for Media
and Communication Studies. TripleC: Communication, Capitalism & Critique,
24(1), 54–72. https://doi.org/10.31269/7112an90'
bibtex: '@article{Fuchs_2026, title={Reason and Communication: Jürgen Habermas’s
Legacy for Media and Communication Studies}, volume={24}, DOI={10.31269/7112an90},
number={1}, journal={tripleC: Communication, Capitalism & Critique}, author={Fuchs,
Christian}, year={2026}, pages={54–72} }'
chicago: 'Fuchs, Christian. “Reason and Communication: Jürgen Habermas’s Legacy
for Media and Communication Studies.” TripleC: Communication, Capitalism &
Critique 24, no. 1 (2026): 54–72. https://doi.org/10.31269/7112an90.'
ieee: 'C. Fuchs, “Reason and Communication: Jürgen Habermas’s Legacy for Media and
Communication Studies,” tripleC: Communication, Capitalism & Critique,
vol. 24, no. 1, pp. 54–72, 2026, doi: 10.31269/7112an90.'
mla: 'Fuchs, Christian. “Reason and Communication: Jürgen Habermas’s Legacy for
Media and Communication Studies.” TripleC: Communication, Capitalism &
Critique, vol. 24, no. 1, 2026, pp. 54–72, doi:10.31269/7112an90.'
short: 'C. Fuchs, TripleC: Communication, Capitalism & Critique 24 (2026) 54–72.'
date_created: 2026-03-27T15:21:08Z
date_updated: 2026-03-27T15:21:12Z
department:
- _id: '136'
doi: 10.31269/7112an90
intvolume: ' 24'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.31269/7112an90
oa: '1'
page: 54-72
project:
- _id: '1084'
name: Politische Ökonomie der Medien und der Kommunikation
publication: 'tripleC: Communication, Capitalism & Critique'
status: public
title: 'Reason and Communication: Jürgen Habermas’s Legacy for Media and Communication
Studies'
type: journal_article
user_id: '21863'
volume: 24
year: '2026'
...
---
_id: '65180'
author:
- first_name: Lutz
full_name: Terfloth, Lutz
id: '37320'
last_name: Terfloth
- first_name: Heike M.
full_name: Buhl, Heike M.
id: '27152'
last_name: Buhl
- first_name: Vivien
full_name: Lohmer, Vivien
id: '99097'
last_name: Lohmer
- first_name: Michael
full_name: Schaffer, Michael
id: '92807'
last_name: Schaffer
- first_name: Frederike
full_name: Kern, Frederike
last_name: Kern
- first_name: Carsten
full_name: Schulte, Carsten
id: '60311'
last_name: Schulte
citation:
ama: 'Terfloth L, Buhl HM, Lohmer V, Schaffer M, Kern F, Schulte C. Bridging
the Dual Nature: How Integrated Explanations Enhance Understanding of Technical
Artifacts.; 2026.'
apa: 'Terfloth, L., Buhl, H. M., Lohmer, V., Schaffer, M., Kern, F., & Schulte,
C. (2026). Bridging the Dual Nature: How Integrated Explanations Enhance Understanding
of Technical Artifacts.'
bibtex: '@book{Terfloth_Buhl_Lohmer_Schaffer_Kern_Schulte_2026, title={Bridging
the Dual Nature: How Integrated Explanations Enhance Understanding of Technical
Artifacts}, author={Terfloth, Lutz and Buhl, Heike M. and Lohmer, Vivien and Schaffer,
Michael and Kern, Frederike and Schulte, Carsten}, year={2026} }'
chicago: 'Terfloth, Lutz, Heike M. Buhl, Vivien Lohmer, Michael Schaffer, Frederike
Kern, and Carsten Schulte. Bridging the Dual Nature: How Integrated Explanations
Enhance Understanding of Technical Artifacts, 2026.'
ieee: 'L. Terfloth, H. M. Buhl, V. Lohmer, M. Schaffer, F. Kern, and C. Schulte,
Bridging the Dual Nature: How Integrated Explanations Enhance Understanding
of Technical Artifacts. 2026.'
mla: 'Terfloth, Lutz, et al. Bridging the Dual Nature: How Integrated Explanations
Enhance Understanding of Technical Artifacts. 2026.'
short: 'L. Terfloth, H.M. Buhl, V. Lohmer, M. Schaffer, F. Kern, C. Schulte, Bridging
the Dual Nature: How Integrated Explanations Enhance Understanding of Technical
Artifacts, 2026.'
date_created: 2026-03-27T15:51:01Z
date_updated: 2026-03-27T15:53:19Z
department:
- _id: '427'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/pdf/2603.24325
oa: '1'
project:
- _id: '114'
name: 'TRR 318; TP A04: Integration des technischen Modells in das Partnermodell
bei der Erklärung von digitalen Artefakten'
status: public
title: 'Bridging the Dual Nature: How Integrated Explanations Enhance Understanding
of Technical Artifacts'
type: working_paper
user_id: '90826'
year: '2026'
...
---
_id: '65182'
abstract:
- lang: eng
text: The aggregation of rating metrics in reputation systems is crucial
for mitigating information overload by condensing customer rating distributions
into singular valence scores. While platforms typically employ technical aggregation
functions, such as the arithmetic mean to capture product quality, it remains
unclear whether these functions align with customers' innate aggregation patterns.
To address this knowledge gap, we designed a controlled economic decision experiment
to elicit customers' aggregation principles by analyzing their product ranking
decisions and contrasting these with various reference functions. Our findings
indicate that, on average, customers aggregate rating information in accordance
with the arithmetic mean. However, a granular analysis at the individual level
reveals significant heterogeneity in aggregation behavior, with a substantial
cluster exhibiting binary patterns that focus equally on negative (1-2 star) and
positive (4-5 star) ratings. Additional clusters concentrate on negative feedback,
particularly 1-star ratings or 1-2 star ratings collectively. Notably, these inherent
aggregation patterns exhibit stability across variations in numerical information
presentation and are not significantly influenced by individual characteristics,
such as online shopping experience, risk attitudes, or demographics. These findings
suggest that while the arithmetic mean captures average consumer behavior, platforms
could benefit from offering customizable aggregation options to better cater to
diverse user preferences for processing rating distributions. By doing so, platforms
can enhance the effectiveness of their reputation systems and improve the overall
quality of decision-making for consumers.
author:
- first_name: Dirk
full_name: van Straaten, Dirk
id: '10311'
last_name: van Straaten
- first_name: Behnud
full_name: Mir Djawadi, Behnud
id: '26032'
last_name: Mir Djawadi
orcid: 0000-0002-6271-5912
- first_name: Vitalik
full_name: Melnikov, Vitalik
id: '58747'
last_name: Melnikov
- first_name: Eyke
full_name: Hüllermeier, Eyke
id: '48129'
last_name: Hüllermeier
- first_name: René
full_name: Fahr, René
id: '111'
last_name: Fahr
citation:
ama: van Straaten D, Mir Djawadi B, Melnikov V, Hüllermeier E, Fahr R. Aggregation
Processes in Customer Rating Systems - Insights from an Economic Decision Experiment.
SSRN Electronic Journal. Published online 2026. doi:http://dx.doi.org/10.2139/ssrn.6201258
apa: van Straaten, D., Mir Djawadi, B., Melnikov, V., Hüllermeier, E., & Fahr,
R. (2026). Aggregation Processes in Customer Rating Systems - Insights from an
Economic Decision Experiment. SSRN Electronic Journal. http://dx.doi.org/10.2139/ssrn.6201258
bibtex: '@article{van Straaten_Mir Djawadi_Melnikov_Hüllermeier_Fahr_2026, title={Aggregation
Processes in Customer Rating Systems - Insights from an Economic Decision Experiment},
DOI={http://dx.doi.org/10.2139/ssrn.6201258},
journal={SSRN Electronic Journal}, publisher={Elsevier BV}, author={van Straaten,
Dirk and Mir Djawadi, Behnud and Melnikov, Vitalik and Hüllermeier, Eyke and Fahr,
René}, year={2026} }'
chicago: Straaten, Dirk van, Behnud Mir Djawadi, Vitalik Melnikov, Eyke Hüllermeier,
and René Fahr. “Aggregation Processes in Customer Rating Systems - Insights from
an Economic Decision Experiment.” SSRN Electronic Journal, 2026. http://dx.doi.org/10.2139/ssrn.6201258.
ieee: 'D. van Straaten, B. Mir Djawadi, V. Melnikov, E. Hüllermeier, and R. Fahr,
“Aggregation Processes in Customer Rating Systems - Insights from an Economic
Decision Experiment,” SSRN Electronic Journal, 2026, doi: http://dx.doi.org/10.2139/ssrn.6201258.'
mla: van Straaten, Dirk, et al. “Aggregation Processes in Customer Rating Systems
- Insights from an Economic Decision Experiment.” SSRN Electronic Journal,
Elsevier BV, 2026, doi:http://dx.doi.org/10.2139/ssrn.6201258.
short: D. van Straaten, B. Mir Djawadi, V. Melnikov, E. Hüllermeier, R. Fahr, SSRN
Electronic Journal (2026).
date_created: 2026-03-27T16:21:55Z
date_updated: 2026-03-27T21:55:03Z
department:
- _id: '179'
doi: http://dx.doi.org/10.2139/ssrn.6201258
language:
- iso: eng
publication: SSRN Electronic Journal
publication_status: published
publisher: Elsevier BV
status: public
title: Aggregation Processes in Customer Rating Systems - Insights from an Economic
Decision Experiment
type: journal_article
user_id: '26032'
year: '2026'
...
---
_id: '65181'
abstract:
- lang: eng
text: In many Western societies, mass immigration has been one of the most
divisive policy issues in recent years. Seemingly moderate inflows of migrants
can have substantial demographic consequences in the long run, due to (1) higher
fertility of the migrant population, (2) its younger age distribution, and (3)
the possibility of family reunification. Yet, demography hardly appears in the
policy debate, even in media outlets that are critical of mass immigration. This
may indicate that the mechanics of population dynamics are not widely understood.
We design a laboratory experiment in which we confront subjects with 30 different
migration scenarios. Subjects have to decide when to stop a given inflow of migrants
to achieve a target share of migrants after 60 years. In line with all our pre-registered
hypotheses, in scenarios that contain elements of usual mass immigration the growth
of the migrant population is systematically underestimated. This bias is even
stronger in scenarios that closely resemble the German situation since the opening
of the borders during the 2015 refugee crisis.
author:
- first_name: Klaus
full_name: Abbink, Klaus
last_name: Abbink
- first_name: Behnud
full_name: Mir Djawadi, Behnud
id: '26032'
last_name: Mir Djawadi
orcid: 0000-0002-6271-5912
citation:
ama: 'Abbink K, Mir Djawadi B. Migration and Long-Term Demographic Change: Can We
Control the Numbers? SSRN Electronic Journal. Published online 2026. doi:http://dx.doi.org/10.2139/ssrn.6343618'
apa: 'Abbink, K., & Mir Djawadi, B. (2026). Migration and Long-Term Demographic
Change: Can We Control the Numbers? SSRN Electronic Journal. http://dx.doi.org/10.2139/ssrn.6343618'
bibtex: '@article{Abbink_Mir Djawadi_2026, title={Migration and Long-Term Demographic
Change: Can We Control the Numbers?}, DOI={http://dx.doi.org/10.2139/ssrn.6343618},
journal={SSRN Electronic Journal}, publisher={Elsevier BV}, author={Abbink, Klaus
and Mir Djawadi, Behnud}, year={2026} }'
chicago: 'Abbink, Klaus, and Behnud Mir Djawadi. “Migration and Long-Term Demographic
Change: Can We Control the Numbers?” SSRN Electronic Journal, 2026. http://dx.doi.org/10.2139/ssrn.6343618.'
ieee: 'K. Abbink and B. Mir Djawadi, “Migration and Long-Term Demographic Change:
Can We Control the Numbers?,” SSRN Electronic Journal, 2026, doi: http://dx.doi.org/10.2139/ssrn.6343618.'
mla: 'Abbink, Klaus, and Behnud Mir Djawadi. “Migration and Long-Term Demographic
Change: Can We Control the Numbers?” SSRN Electronic Journal, Elsevier
BV, 2026, doi:http://dx.doi.org/10.2139/ssrn.6343618.'
short: K. Abbink, B. Mir Djawadi, SSRN Electronic Journal (2026).
date_created: 2026-03-27T16:21:06Z
date_updated: 2026-03-27T21:39:58Z
department:
- _id: '179'
doi: http://dx.doi.org/10.2139/ssrn.6343618
language:
- iso: eng
publication: SSRN Electronic Journal
publication_status: published
publisher: Elsevier BV
status: public
title: 'Migration and Long-Term Demographic Change: Can We Control the Numbers?'
type: journal_article
user_id: '26032'
year: '2026'
...
---
_id: '63910'
author:
- first_name: Behnud
full_name: Mir Djawadi, Behnud
id: '26032'
last_name: Mir Djawadi
orcid: 0000-0002-6271-5912
citation:
ama: Mir Djawadi B. Dishonesty of Parents and Children – Evidence from a Field Experiment.
SSRN Electronic Journal. Published online 2026. doi:http://dx.doi.org/10.2139/ssrn.6121987
apa: Mir Djawadi, B. (2026). Dishonesty of Parents and Children – Evidence from
a Field Experiment. SSRN Electronic Journal. http://dx.doi.org/10.2139/ssrn.6121987
bibtex: '@article{Mir Djawadi_2026, title={Dishonesty of Parents and Children –
Evidence from a Field Experiment}, DOI={http://dx.doi.org/10.2139/ssrn.6121987},
journal={SSRN Electronic Journal}, publisher={Elsevier BV}, author={Mir Djawadi,
Behnud}, year={2026} }'
chicago: Mir Djawadi, Behnud. “Dishonesty of Parents and Children – Evidence from
a Field Experiment.” SSRN Electronic Journal, 2026. http://dx.doi.org/10.2139/ssrn.6121987.
ieee: 'B. Mir Djawadi, “Dishonesty of Parents and Children – Evidence from a Field
Experiment,” SSRN Electronic Journal, 2026, doi: http://dx.doi.org/10.2139/ssrn.6121987.'
mla: Mir Djawadi, Behnud. “Dishonesty of Parents and Children – Evidence from a
Field Experiment.” SSRN Electronic Journal, Elsevier BV, 2026, doi:http://dx.doi.org/10.2139/ssrn.6121987.
short: B. Mir Djawadi, SSRN Electronic Journal (2026).
date_created: 2026-02-06T13:53:22Z
date_updated: 2026-03-27T21:43:56Z
department:
- _id: '179'
doi: http://dx.doi.org/10.2139/ssrn.6121987
language:
- iso: eng
publication: SSRN Electronic Journal
publication_status: published
publisher: Elsevier BV
status: public
title: Dishonesty of Parents and Children – Evidence from a Field Experiment
type: journal_article
user_id: '26032'
year: '2026'
...
---
_id: '65206'
author:
- first_name: Martina
full_name: Homt, Martina
id: '11674'
last_name: Homt
citation:
ama: 'Homt M. Praxisschock oder Kohärenz? – Retrospektive Einschätzungen von Berufseinsteiger*innen
zu den Phasen der Lehrkräftebildung. In: ; 2026.'
apa: Homt, M. (2026). Praxisschock oder Kohärenz? – Retrospektive Einschätzungen
von Berufseinsteiger*innen zu den Phasen der Lehrkräftebildung. 30. Kongress
der Deutschen Gesellschaft für Erziehungswissenschaft (DGfE), München.
bibtex: '@inproceedings{Homt_2026, title={Praxisschock oder Kohärenz? – Retrospektive
Einschätzungen von Berufseinsteiger*innen zu den Phasen der Lehrkräftebildung},
author={Homt, Martina}, year={2026} }'
chicago: Homt, Martina. “Praxisschock oder Kohärenz? – Retrospektive Einschätzungen
von Berufseinsteiger*innen zu den Phasen der Lehrkräftebildung,” 2026.
ieee: M. Homt, “Praxisschock oder Kohärenz? – Retrospektive Einschätzungen von Berufseinsteiger*innen
zu den Phasen der Lehrkräftebildung,” presented at the 30. Kongress der Deutschen
Gesellschaft für Erziehungswissenschaft (DGfE), München, 2026.
mla: Homt, Martina. Praxisschock oder Kohärenz? – Retrospektive Einschätzungen
von Berufseinsteiger*innen zu den Phasen der Lehrkräftebildung. 2026.
short: 'M. Homt, in: 2026.'
conference:
end_date: 2026-03-25
location: München
name: 30. Kongress der Deutschen Gesellschaft für Erziehungswissenschaft (DGfE)
start_date: 2026-03-22
date_created: 2026-03-30T08:02:45Z
date_updated: 2026-03-30T08:08:51Z
department:
- _id: '456'
language:
- iso: ger
status: public
title: Praxisschock oder Kohärenz? – Retrospektive Einschätzungen von Berufseinsteiger*innen
zu den Phasen der Lehrkräftebildung
type: conference
user_id: '11674'
year: '2026'
...
---
_id: '57580'
abstract:
- lang: eng
text: We investigate dispersive and Strichartz estimates for the Schrödinger equation
involving the fractional Laplacian in real hyperbolic spaces and their discrete
analogues, homogeneous trees. Due to the Knapp phenomenon, the Strichartz estimates
on Euclidean spaces for the fractional Laplacian exhibit loss of derivatives.
A similar phenomenon appears on real hyperbolic spaces. However, such a loss disappears
on homogeneous trees, due to the triviality of the estimates for small times.
author:
- first_name: Guendalina
full_name: Palmirotta, Guendalina
id: '109467'
last_name: Palmirotta
- first_name: Yannick
full_name: Sire, Yannick
last_name: Sire
- first_name: Jean-Philippe
full_name: Anker, Jean-Philippe
last_name: Anker
citation:
ama: Palmirotta G, Sire Y, Anker J-P. The Schrödinger equation with fractional Laplacian
on hyperbolic spaces and homogeneous trees. Journal of Differential Equations.
Published online 2026. doi:10.1016/j.jde.2025.114065
apa: Palmirotta, G., Sire, Y., & Anker, J.-P. (2026). The Schrödinger equation
with fractional Laplacian on hyperbolic spaces and homogeneous trees. Journal
of Differential Equations. https://doi.org/10.1016/j.jde.2025.114065
bibtex: '@article{Palmirotta_Sire_Anker_2026, title={The Schrödinger equation with
fractional Laplacian on hyperbolic spaces and homogeneous trees}, DOI={10.1016/j.jde.2025.114065},
journal={Journal of Differential Equations}, publisher={Elsevier}, author={Palmirotta,
Guendalina and Sire, Yannick and Anker, Jean-Philippe}, year={2026} }'
chicago: Palmirotta, Guendalina, Yannick Sire, and Jean-Philippe Anker. “The Schrödinger
Equation with Fractional Laplacian on Hyperbolic Spaces and Homogeneous Trees.”
Journal of Differential Equations, 2026. https://doi.org/10.1016/j.jde.2025.114065.
ieee: 'G. Palmirotta, Y. Sire, and J.-P. Anker, “The Schrödinger equation with fractional
Laplacian on hyperbolic spaces and homogeneous trees,” Journal of Differential
Equations, 2026, doi: 10.1016/j.jde.2025.114065.'
mla: Palmirotta, Guendalina, et al. “The Schrödinger Equation with Fractional Laplacian
on Hyperbolic Spaces and Homogeneous Trees.” Journal of Differential Equations,
Elsevier, 2026, doi:10.1016/j.jde.2025.114065.
short: G. Palmirotta, Y. Sire, J.-P. Anker, Journal of Differential Equations (2026).
date_created: 2024-12-04T16:21:38Z
date_updated: 2026-03-30T12:03:37Z
department:
- _id: '10'
- _id: '548'
doi: 10.1016/j.jde.2025.114065
external_id:
arxiv:
- '2412.00780'
keyword:
- Schrödinger equation
- Fractional Laplacian
- Dispersive estimates
- Strichartz estimates
- Real hyperbolic spaces
- Homogeneous trees
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1016/j.jde.2025.114065
oa: '1'
project:
- _id: '356'
name: 'TRR 358 - B02: TRR 358 - Spektraltheorie in höherem Rang und unendlichem
Volumen (Teilprojekt B02)'
publication: Journal of Differential Equations
publication_status: published
publisher: Elsevier
related_material:
link:
- relation: confirmation
url: https://www.sciencedirect.com/science/article/pii/S0022039625010927?via%3Dihub
status: public
title: The Schrödinger equation with fractional Laplacian on hyperbolic spaces and
homogeneous trees
type: journal_article
user_id: '109467'
year: '2026'
...
---
_id: '65232'
abstract:
- lang: eng
text: On finite regular graphs, we construct Patterson-Sullivan distributions associated
with eigenfunctions of the discrete Laplace operator via their boundary values
on the phase space. These distributions are closely related to Wigner distributions
defined via a pseudo-differential calculus on graphs, which appear naturally in
the study of quantum chaos. Using a pairing formula, we prove that Patterson-Sullivan
distributions are also related to invariant Ruelle distributions arising from
the transfer operator of the geodesic flow on the shift space. Both relationships
provide discrete analogues of results for compact hyperbolic surfaces obtained
by Anantharaman-Zelditch and by Guillarmou-Hilgert-Weich.
author:
- first_name: Christian
full_name: Arends, Christian
last_name: Arends
- first_name: Guendalina
full_name: Palmirotta, Guendalina
id: '109467'
last_name: Palmirotta
citation:
ama: Arends C, Palmirotta G. Patterson-Sullivan distributions of finite regular
graphs. arXiv:260309779. Published online 2026.
apa: Arends, C., & Palmirotta, G. (2026). Patterson-Sullivan distributions of
finite regular graphs. In arXiv:2603.09779.
bibtex: '@article{Arends_Palmirotta_2026, title={Patterson-Sullivan distributions
of finite regular graphs}, journal={arXiv:2603.09779}, author={Arends, Christian
and Palmirotta, Guendalina}, year={2026} }'
chicago: Arends, Christian, and Guendalina Palmirotta. “Patterson-Sullivan Distributions
of Finite Regular Graphs.” ArXiv:2603.09779, 2026.
ieee: C. Arends and G. Palmirotta, “Patterson-Sullivan distributions of finite regular
graphs,” arXiv:2603.09779. 2026.
mla: Arends, Christian, and Guendalina Palmirotta. “Patterson-Sullivan Distributions
of Finite Regular Graphs.” ArXiv:2603.09779, 2026.
short: C. Arends, G. Palmirotta, ArXiv:2603.09779 (2026).
date_created: 2026-03-30T11:56:04Z
date_updated: 2026-03-30T12:02:56Z
department:
- _id: '548'
- _id: '10'
- _id: '34'
external_id:
arxiv:
- '2603.09779'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2603.09779
oa: '1'
page: '38'
project:
- _id: '358'
name: 'TRR 358; TP B04: Geodätische Flüsse und Weyl Kammer Flüsse auf affinen Gebäuden'
publication: arXiv:2603.09779
status: public
title: Patterson-Sullivan distributions of finite regular graphs
type: preprint
user_id: '109467'
year: '2026'
...
---
_id: '63530'
abstract:
- lang: eng
text: 'The widespread deployment of 5G networks, together with the coexistence of
4G/LTE networks, provides mobile devices a diverse set of candidate cells to connect
to. However, associating mobile devices to cells to maximize overall network performance,
a.k.a. cell (re)selection, remains a key challenge for mobile operators. Today,
cell (re)selection parameters are typically configured manually based on operator
experience and rarely adapted to dynamic network conditions. In this work, we
ask: Can an agent automatically learn and adapt cell (re)selection parameters
to consistently improve network performance? We present a reinforcement learning
(RL)-based framework called CellPilot that adaptively tunes cell (re)selection
parameters by learning spatiotemporal patterns of mobile network dynamics. Our
study with real-world data demonstrates that even a lightweight RL agent can outperform
conventional heuristic reconfigurations by up to 167%, while generalizing effectively
across different network scenarios. These results indicate that data-driven approaches
can significantly improve cell (re)selection configurations and enhance mobile
network performance.'
author:
- first_name: Marvin
full_name: Illian, Marvin
id: '44169'
last_name: Illian
orcid: 0009-0007-2992-8346
- first_name: Ramin
full_name: Khalili, Ramin
last_name: Khalili
- first_name: Antonio A. de A.
full_name: Rocha, Antonio A. de A.
last_name: Rocha
- first_name: Lin
full_name: Wang, Lin
id: '102868'
last_name: Wang
orcid: 0000-0001-7181-6128
citation:
ama: 'Illian M, Khalili R, Rocha AA de A, Wang L. Cells on Autopilot: Adaptive Cell
(Re)Selection via Reinforcement Learning. arXiv:260104083. Published online
2026.'
apa: 'Illian, M., Khalili, R., Rocha, A. A. de A., & Wang, L. (2026). Cells
on Autopilot: Adaptive Cell (Re)Selection via Reinforcement Learning. In arXiv:2601.04083.'
bibtex: '@article{Illian_Khalili_Rocha_Wang_2026, title={Cells on Autopilot: Adaptive
Cell (Re)Selection via Reinforcement Learning}, journal={arXiv:2601.04083}, author={Illian,
Marvin and Khalili, Ramin and Rocha, Antonio A. de A. and Wang, Lin}, year={2026}
}'
chicago: 'Illian, Marvin, Ramin Khalili, Antonio A. de A. Rocha, and Lin Wang. “Cells
on Autopilot: Adaptive Cell (Re)Selection via Reinforcement Learning.” ArXiv:2601.04083,
2026.'
ieee: 'M. Illian, R. Khalili, A. A. de A. Rocha, and L. Wang, “Cells on Autopilot:
Adaptive Cell (Re)Selection via Reinforcement Learning,” arXiv:2601.04083.
2026.'
mla: 'Illian, Marvin, et al. “Cells on Autopilot: Adaptive Cell (Re)Selection via
Reinforcement Learning.” ArXiv:2601.04083, 2026.'
short: M. Illian, R. Khalili, A.A. de A. Rocha, L. Wang, ArXiv:2601.04083 (2026).
date_created: 2026-01-08T07:58:22Z
date_updated: 2026-03-31T06:44:22Z
department:
- _id: '75'
external_id:
arxiv:
- '2601.04083'
language:
- iso: eng
publication: arXiv:2601.04083
status: public
title: 'Cells on Autopilot: Adaptive Cell (Re)Selection via Reinforcement Learning'
type: preprint
user_id: '102868'
year: '2026'
...
---
_id: '65249'
author:
- first_name: Huzaifa
full_name: Shaaban KabakiboKabakibo, Huzaifa
last_name: Shaaban KabakiboKabakibo
- first_name: Animesh
full_name: Trivedi, Animesh
last_name: Trivedi
- first_name: Lin
full_name: Wang, Lin
id: '102868'
last_name: Wang
orcid: 0000-0001-7181-6128
citation:
ama: 'Shaaban KabakiboKabakibo H, Trivedi A, Wang L. Breaking the Ice: Analyzing
Cold Start Latency in vLLM. In: The 9th Annual Conference on Machine Learning
and Systems (MLSys). ; 2026.'
apa: 'Shaaban KabakiboKabakibo, H., Trivedi, A., & Wang, L. (2026). Breaking
the Ice: Analyzing Cold Start Latency in vLLM. The 9th Annual Conference on
Machine Learning and Systems (MLSys). The 9th Annual Conference on Machine
Learning and Systems (MLSys 2026) , Bellevue, WA.'
bibtex: '@inproceedings{Shaaban KabakiboKabakibo_Trivedi_Wang_2026, title={Breaking
the Ice: Analyzing Cold Start Latency in vLLM}, booktitle={The 9th Annual Conference
on Machine Learning and Systems (MLSys)}, author={Shaaban KabakiboKabakibo, Huzaifa
and Trivedi, Animesh and Wang, Lin}, year={2026} }'
chicago: 'Shaaban KabakiboKabakibo, Huzaifa, Animesh Trivedi, and Lin Wang. “Breaking
the Ice: Analyzing Cold Start Latency in VLLM.” In The 9th Annual Conference
on Machine Learning and Systems (MLSys), 2026.'
ieee: 'H. Shaaban KabakiboKabakibo, A. Trivedi, and L. Wang, “Breaking the Ice:
Analyzing Cold Start Latency in vLLM,” presented at the The 9th Annual Conference
on Machine Learning and Systems (MLSys 2026) , Bellevue, WA, 2026.'
mla: 'Shaaban KabakiboKabakibo, Huzaifa, et al. “Breaking the Ice: Analyzing Cold
Start Latency in VLLM.” The 9th Annual Conference on Machine Learning and Systems
(MLSys), 2026.'
short: 'H. Shaaban KabakiboKabakibo, A. Trivedi, L. Wang, in: The 9th Annual Conference
on Machine Learning and Systems (MLSys), 2026.'
conference:
end_date: 2026-05-22
location: Bellevue, WA
name: 'The 9th Annual Conference on Machine Learning and Systems (MLSys 2026) '
start_date: 2026-05-18
date_created: 2026-03-31T06:34:37Z
date_updated: 2026-03-31T06:41:10Z
department:
- _id: '34'
- _id: '7'
- _id: '75'
language:
- iso: eng
publication: The 9th Annual Conference on Machine Learning and Systems (MLSys)
status: public
title: 'Breaking the Ice: Analyzing Cold Start Latency in vLLM'
type: conference
user_id: '102868'
year: '2026'
...
---
_id: '65250'
author:
- first_name: Sepideh
full_name: Zohdi, Sepideh
last_name: Zohdi
- first_name: Lin
full_name: Wang, Lin
id: '102868'
last_name: Wang
orcid: 0000-0001-7181-6128
citation:
ama: 'Zohdi S, Wang L. Before the First Token: Benchmarking Data Preprocessing in
Vision-Language Models . In: The 6th Workshop on Machine Learning and Systems
(EuroMLSys). ; 2026.'
apa: 'Zohdi, S., & Wang, L. (2026). Before the First Token: Benchmarking Data
Preprocessing in Vision-Language Models . The 6th Workshop on Machine Learning
and Systems (EuroMLSys). The 6th Workshop on Machine Learning and Systems
(EuroMLSys), Edinburg.'
bibtex: '@inproceedings{Zohdi_Wang_2026, title={Before the First Token: Benchmarking
Data Preprocessing in Vision-Language Models }, booktitle={The 6th Workshop on
Machine Learning and Systems (EuroMLSys)}, author={Zohdi, Sepideh and Wang, Lin},
year={2026} }'
chicago: 'Zohdi, Sepideh, and Lin Wang. “Before the First Token: Benchmarking Data
Preprocessing in Vision-Language Models .” In The 6th Workshop on Machine Learning
and Systems (EuroMLSys), 2026.'
ieee: 'S. Zohdi and L. Wang, “Before the First Token: Benchmarking Data Preprocessing
in Vision-Language Models ,” presented at the The 6th Workshop on Machine Learning
and Systems (EuroMLSys), Edinburg, 2026.'
mla: 'Zohdi, Sepideh, and Lin Wang. “Before the First Token: Benchmarking Data Preprocessing
in Vision-Language Models .” The 6th Workshop on Machine Learning and Systems
(EuroMLSys), 2026.'
short: 'S. Zohdi, L. Wang, in: The 6th Workshop on Machine Learning and Systems
(EuroMLSys), 2026.'
conference:
end_date: 2026-04-27
location: Edinburg
name: The 6th Workshop on Machine Learning and Systems (EuroMLSys)
start_date: 2026-04-27
date_created: 2026-03-31T06:38:34Z
date_updated: 2026-03-31T06:39:41Z
department:
- _id: '34'
- _id: '7'
- _id: '75'
language:
- iso: eng
publication: The 6th Workshop on Machine Learning and Systems (EuroMLSys)
status: public
title: 'Before the First Token: Benchmarking Data Preprocessing in Vision-Language
Models '
type: conference
user_id: '102868'
year: '2026'
...
---
_id: '65253'
article_number: '306'
author:
- first_name: Ali Hassan Ali
full_name: Abdelwanis, Ali Hassan Ali
last_name: Abdelwanis
- first_name: Barnabas
full_name: Haucke-Korber, Barnabas
id: '93461'
last_name: Haucke-Korber
orcid: 0000-0003-0862-2069
- first_name: Darius
full_name: Jakobeit, Darius
last_name: Jakobeit
- first_name: Wilhelm
full_name: Kirchgässner, Wilhelm
id: '49265'
last_name: Kirchgässner
orcid: 0000-0001-9490-1843
- first_name: Marvin
full_name: Meyer, Marvin
last_name: Meyer
- first_name: Maximilian
full_name: Schenke, Maximilian
id: '52638'
last_name: Schenke
orcid: 0000-0001-5427-9527
- first_name: Hendrik
full_name: Vater, Hendrik
id: '63220'
last_name: Vater
- first_name: Oliver
full_name: Wallscheid, Oliver
id: '11291'
last_name: Wallscheid
orcid: https://orcid.org/0000-0001-9362-8777
- first_name: Daniel
full_name: Weber, Daniel
id: '24041'
last_name: Weber
orcid: 0000-0003-3367-5998
citation:
ama: 'Abdelwanis AHA, Haucke-Korber B, Jakobeit D, et al. Reinforcement Learning:
A Comprehensive Open-Source Course. Journal of Open Source Education. 2026;9(97).
doi:10.21105/jose.00306'
apa: 'Abdelwanis, A. H. A., Haucke-Korber, B., Jakobeit, D., Kirchgässner, W., Meyer,
M., Schenke, M., Vater, H., Wallscheid, O., & Weber, D. (2026). Reinforcement
Learning: A Comprehensive Open-Source Course. Journal of Open Source Education,
9(97), Article 306. https://doi.org/10.21105/jose.00306'
bibtex: '@article{Abdelwanis_Haucke-Korber_Jakobeit_Kirchgässner_Meyer_Schenke_Vater_Wallscheid_Weber_2026,
title={Reinforcement Learning: A Comprehensive Open-Source Course}, volume={9},
DOI={10.21105/jose.00306}, number={97306},
journal={Journal of Open Source Education}, publisher={The Open Journal}, author={Abdelwanis,
Ali Hassan Ali and Haucke-Korber, Barnabas and Jakobeit, Darius and Kirchgässner,
Wilhelm and Meyer, Marvin and Schenke, Maximilian and Vater, Hendrik and Wallscheid,
Oliver and Weber, Daniel}, year={2026} }'
chicago: 'Abdelwanis, Ali Hassan Ali, Barnabas Haucke-Korber, Darius Jakobeit, Wilhelm
Kirchgässner, Marvin Meyer, Maximilian Schenke, Hendrik Vater, Oliver Wallscheid,
and Daniel Weber. “Reinforcement Learning: A Comprehensive Open-Source Course.”
Journal of Open Source Education 9, no. 97 (2026). https://doi.org/10.21105/jose.00306.'
ieee: 'A. H. A. Abdelwanis et al., “Reinforcement Learning: A Comprehensive
Open-Source Course,” Journal of Open Source Education, vol. 9, no. 97,
Art. no. 306, 2026, doi: 10.21105/jose.00306.'
mla: 'Abdelwanis, Ali Hassan Ali, et al. “Reinforcement Learning: A Comprehensive
Open-Source Course.” Journal of Open Source Education, vol. 9, no. 97,
306, The Open Journal, 2026, doi:10.21105/jose.00306.'
short: A.H.A. Abdelwanis, B. Haucke-Korber, D. Jakobeit, W. Kirchgässner, M. Meyer,
M. Schenke, H. Vater, O. Wallscheid, D. Weber, Journal of Open Source Education
9 (2026).
date_created: 2026-03-31T07:30:04Z
date_updated: 2026-03-31T07:32:23Z
department:
- _id: '52'
doi: 10.21105/jose.00306
intvolume: ' 9'
issue: '97'
language:
- iso: eng
publication: Journal of Open Source Education
publication_identifier:
issn:
- 2577-3569
publication_status: published
publisher: The Open Journal
status: public
title: 'Reinforcement Learning: A Comprehensive Open-Source Course'
type: journal_article
user_id: '93461'
volume: 9
year: '2026'
...
---
_id: '65134'
article_type: original
author:
- first_name: Christian
full_name: Fuchs, Christian
id: '21863'
last_name: Fuchs
orcid: 0000-0003-0589-4579
citation:
ama: Fuchs C. Digital Fascism and Digital Capitalism. Philosophy & Social
Criticism. Published online 2026. doi:10.1177/01914537261434922
apa: Fuchs, C. (2026). Digital Fascism and Digital Capitalism. Philosophy &
Social Criticism. https://doi.org/10.1177/01914537261434922
bibtex: '@article{Fuchs_2026, title={Digital Fascism and Digital Capitalism}, DOI={10.1177/01914537261434922},
journal={Philosophy & Social Criticism}, author={Fuchs, Christian}, year={2026}
}'
chicago: Fuchs, Christian. “Digital Fascism and Digital Capitalism.” Philosophy
& Social Criticism, 2026. https://doi.org/10.1177/01914537261434922.
ieee: 'C. Fuchs, “Digital Fascism and Digital Capitalism,” Philosophy & Social
Criticism, 2026, doi: 10.1177/01914537261434922.'
mla: Fuchs, Christian. “Digital Fascism and Digital Capitalism.” Philosophy &
Social Criticism, 2026, doi:10.1177/01914537261434922.
short: C. Fuchs, Philosophy & Social Criticism (2026).
date_created: 2026-03-26T09:18:51Z
date_updated: 2026-03-31T16:42:00Z
department:
- _id: '136'
- _id: '11'
doi: 10.1177/01914537261434922
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: Philosophy and Social Criticism
oa: '1'
project:
- _id: '1086'
name: Politische Ökonomie der digitalen Medien und der digitalen Kommunikation
publication: Philosophy & Social Criticism
publication_status: published
quality_controlled: '1'
related_material:
link:
- relation: confirmation
url: https://doi.org/10.1177/01914537261434922
status: public
title: Digital Fascism and Digital Capitalism
type: journal_article
user_id: '21863'
year: '2026'
...
---
_id: '65266'
abstract:
- lang: eng
text: "ABSTRACT\r\n This work
is concerned with the modeling of a cold‐box sand, a composition of sand grains
and a resin binder. To this end, experiments are performed, which show the following
characteristics: localization phenomena in the form of a shear band, softening
behavior in the force‐displacement curve, and asymmetric behavior for compression
and tension. To model this complex material behavior, a micromorphic continuum
is used. In the present contribution, we focus on the linear‐elastic regime and
demonstrate the identifiability of micromorphic material parameters under deliberately
induced inhomogeneous deformation states. In addition to the degrees of freedom
of a classical continuum, the micromorphic model has additional degrees of freedom,
introduced here in a phenomenological sense to represent kinematically enriched
deformation modes associated with the granular microstructure. Accordingly, the
micromorphic fields are not interpreted as a separate physical scale (e.g., “binder”
vs. “grains”), but as an effective continuum description at the specimen scale.
This contribution addresses parameter identification for a micromorphic model
of cold‐box sand, with a clear separation between homogeneous deformation states
governing classical elastic parameters and inhomogeneous states required to activate
and identify micromorphic length‐scale parameters. The main challenge lies in
identifying the micro material parameters. To determine these, the corresponding
gradient terms in the constitutive formulation must be triggered via properly
tuned experiments. Micro‐parameter identification is demonstrated using synthetic
data generated from a boundary‐value problem with inhomogeneous displacement fields.
The chosen benchmark enables controlled activation of gradient terms and thereby
renders optimization‐based identification of micromorphic parameters feasible.
The synthetic example is deliberately chosen to assess feasibility and identifiability
under controlled conditions, thereby isolating micromorphic identifiability aspects
from experimental uncertainties. The novelty of the contribution lies in explicitly
linking micromorphic parameter identifiability to kinematic inhomogeneity, and
in demonstrating this link within a tractable forward– inverse setting for a linear‐elastic
micromorphic continuum."
article_number: e70093
author:
- first_name: Alexander
full_name: Börger, Alexander
id: '52037'
last_name: Börger
- first_name: Rolf
full_name: Mahnken, Rolf
last_name: Mahnken
- first_name: Ismail
full_name: Caylak, Ismail
id: '75'
last_name: Caylak
- first_name: Richard
full_name: Ostwald, Richard
id: '106876'
last_name: Ostwald
orcid: 0000-0003-2147-8444
citation:
ama: Börger A, Mahnken R, Caylak I, Ostwald R. Aspects of Parameter Identification
for a Micromorphic Continuum applied to a Cold‐Box Sand. Proceedings in Applied
Mathematics and Mechanics. 2026;26(2). doi:10.1002/pamm.70093
apa: Börger, A., Mahnken, R., Caylak, I., & Ostwald, R. (2026). Aspects of Parameter
Identification for a Micromorphic Continuum applied to a Cold‐Box Sand. Proceedings
in Applied Mathematics and Mechanics, 26(2), Article e70093. https://doi.org/10.1002/pamm.70093
bibtex: '@article{Börger_Mahnken_Caylak_Ostwald_2026, title={Aspects of Parameter
Identification for a Micromorphic Continuum applied to a Cold‐Box Sand}, volume={26},
DOI={10.1002/pamm.70093}, number={2e70093},
journal={Proceedings in Applied Mathematics and Mechanics}, publisher={Wiley},
author={Börger, Alexander and Mahnken, Rolf and Caylak, Ismail and Ostwald, Richard},
year={2026} }'
chicago: Börger, Alexander, Rolf Mahnken, Ismail Caylak, and Richard Ostwald. “Aspects
of Parameter Identification for a Micromorphic Continuum Applied to a Cold‐Box
Sand.” Proceedings in Applied Mathematics and Mechanics 26, no. 2 (2026).
https://doi.org/10.1002/pamm.70093.
ieee: 'A. Börger, R. Mahnken, I. Caylak, and R. Ostwald, “Aspects of Parameter Identification
for a Micromorphic Continuum applied to a Cold‐Box Sand,” Proceedings in Applied
Mathematics and Mechanics, vol. 26, no. 2, Art. no. e70093, 2026, doi: 10.1002/pamm.70093.'
mla: Börger, Alexander, et al. “Aspects of Parameter Identification for a Micromorphic
Continuum Applied to a Cold‐Box Sand.” Proceedings in Applied Mathematics and
Mechanics, vol. 26, no. 2, e70093, Wiley, 2026, doi:10.1002/pamm.70093.
short: A. Börger, R. Mahnken, I. Caylak, R. Ostwald, Proceedings in Applied Mathematics
and Mechanics 26 (2026).
date_created: 2026-04-01T04:52:34Z
date_updated: 2026-04-01T04:54:17Z
department:
- _id: '9'
- _id: '952'
- _id: '321'
doi: 10.1002/pamm.70093
intvolume: ' 26'
issue: '2'
language:
- iso: eng
publication: Proceedings in Applied Mathematics and Mechanics
publication_identifier:
issn:
- 1617-7061
- 1617-7061
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Aspects of Parameter Identification for a Micromorphic Continuum applied to
a Cold‐Box Sand
type: journal_article
user_id: '85414'
volume: 26
year: '2026'
...
---
_id: '65265'
abstract:
- lang: eng
text: "Abstract\r\n \r\n Background\r\n
\ Research on procrastination mostly focuses on person‐related
antecedents and neglects situational and social factors, such as group work. Prior
research indicates that conjunctive and additive group work may increase individual
effort and performance as compared to individual work.\r\n \r\n
\ \r\n Aims\r\n
\ Based on these findings, we investigate whether conjunctive
and additive group work may also help reduce procrastination as compared to individual
work.\r\n \r\n \r\n
\ Methods\r\n \r\n
\ In a registered field experiment,\r\n N\r\n
\ = 218 students with high levels of trait procrastination
worked on an academic task over the course of 10 days in one of three conditions
(individual work vs. conjunctive group work vs. additive group work). Dependent
variables comprised task procrastination, task performance, and positive and negative
task‐related affect.\r\n \r\n \r\n
\ \r\n Results\r\n
\ Regarding conjunctive group work, results are mixed,
with some evidence that conjunctive group work leads to lower procrastination
as compared to individual work. Both types of group work resulted in higher negative
task‐related affect when assessed prospectively. No other effects were found.\r\n
\ \r\n \r\n Conclusions\r\n
\ The findings contribute to the idea that targeted
changes in the learning environment, such as the implementation of group work,
may help reduce procrastination.\r\n "
article_number: bjep.70069
author:
- first_name: Markus
full_name: Koppenborg, Markus
last_name: Koppenborg
- first_name: Joachim
full_name: Hüffmeier, Joachim
last_name: Hüffmeier
- first_name: Katrin B.
full_name: Klingsieck, Katrin B.
id: '36716'
last_name: Klingsieck
citation:
ama: Koppenborg M, Hüffmeier J, Klingsieck KB. Is procrastination among students
lower in group work? Evidence from a registered field experiment. British Journal
of Educational Psychology. Published online 2026. doi:10.1111/bjep.70069
apa: Koppenborg, M., Hüffmeier, J., & Klingsieck, K. B. (2026). Is procrastination
among students lower in group work? Evidence from a registered field experiment.
British Journal of Educational Psychology, Article bjep. 70069. https://doi.org/10.1111/bjep.70069
bibtex: '@article{Koppenborg_Hüffmeier_Klingsieck_2026, title={Is procrastination
among students lower in group work? Evidence from a registered field experiment},
DOI={10.1111/bjep.70069}, number={bjep.
70069}, journal={British Journal of Educational Psychology}, publisher={Wiley},
author={Koppenborg, Markus and Hüffmeier, Joachim and Klingsieck, Katrin B.},
year={2026} }'
chicago: Koppenborg, Markus, Joachim Hüffmeier, and Katrin B. Klingsieck. “Is Procrastination
among Students Lower in Group Work? Evidence from a Registered Field Experiment.”
British Journal of Educational Psychology, 2026. https://doi.org/10.1111/bjep.70069.
ieee: 'M. Koppenborg, J. Hüffmeier, and K. B. Klingsieck, “Is procrastination among
students lower in group work? Evidence from a registered field experiment,” British
Journal of Educational Psychology, Art. no. bjep. 70069, 2026, doi: 10.1111/bjep.70069.'
mla: Koppenborg, Markus, et al. “Is Procrastination among Students Lower in Group
Work? Evidence from a Registered Field Experiment.” British Journal of Educational
Psychology, bjep. 70069, Wiley, 2026, doi:10.1111/bjep.70069.
short: M. Koppenborg, J. Hüffmeier, K.B. Klingsieck, British Journal of Educational
Psychology (2026).
date_created: 2026-03-31T18:55:54Z
date_updated: 2026-03-31T18:57:37Z
department:
- _id: '426'
doi: 10.1111/bjep.70069
language:
- iso: eng
publication: British Journal of Educational Psychology
publication_identifier:
issn:
- 0007-0998
- 2044-8279
publication_status: published
publisher: Wiley
status: public
title: Is procrastination among students lower in group work? Evidence from a registered
field experiment
type: journal_article
user_id: '36716'
year: '2026'
...
---
_id: '65267'
author:
- first_name: Viola
full_name: Hollenhorst, Viola
id: '50519'
last_name: Hollenhorst
- first_name: Julia
full_name: Riese, Julia
id: '101499'
last_name: Riese
orcid: 0000-0002-3053-0534
- first_name: Eugeny Y.
full_name: Kenig, Eugeny Y.
id: '665'
last_name: Kenig
citation:
ama: 'Hollenhorst V, Riese J, Kenig EY. Investigation of Surface Roughness Effects
on Flow Patterns and Thermal Performance in Additively Manufactured Channels.
In: ; 2026.'
apa: Hollenhorst, V., Riese, J., & Kenig, E. Y. (2026). Investigation of
Surface Roughness Effects on Flow Patterns and Thermal Performance in Additively
Manufactured Channels. Annual Meeting of the DECHEMA/VDI Specialist Groups
Fluid Separations and Heat & Mass Transfer, Luzern, Schweiz.
bibtex: '@inproceedings{Hollenhorst_Riese_Kenig_2026, title={Investigation of Surface
Roughness Effects on Flow Patterns and Thermal Performance in Additively Manufactured
Channels}, author={Hollenhorst, Viola and Riese, Julia and Kenig, Eugeny Y.},
year={2026} }'
chicago: Hollenhorst, Viola, Julia Riese, and Eugeny Y. Kenig. “Investigation of
Surface Roughness Effects on Flow Patterns and Thermal Performance in Additively
Manufactured Channels,” 2026.
ieee: V. Hollenhorst, J. Riese, and E. Y. Kenig, “Investigation of Surface Roughness
Effects on Flow Patterns and Thermal Performance in Additively Manufactured Channels,”
presented at the Annual Meeting of the DECHEMA/VDI Specialist Groups Fluid Separations
and Heat & Mass Transfer, Luzern, Schweiz, 2026.
mla: Hollenhorst, Viola, et al. Investigation of Surface Roughness Effects on
Flow Patterns and Thermal Performance in Additively Manufactured Channels.
2026.
short: 'V. Hollenhorst, J. Riese, E.Y. Kenig, in: 2026.'
conference:
end_date: 2026-03-11
location: Luzern, Schweiz
name: Annual Meeting of the DECHEMA/VDI Specialist Groups Fluid Separations and
Heat & Mass Transfer
start_date: 2026-03-09
date_created: 2026-04-01T06:44:05Z
date_updated: 2026-04-01T06:56:44Z
department:
- _id: '9'
- _id: '831'
language:
- iso: eng
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
status: public
title: Investigation of Surface Roughness Effects on Flow Patterns and Thermal Performance
in Additively Manufactured Channels
type: conference_abstract
user_id: '50519'
year: '2026'
...