2026

Annika Österdiekhoff, Nils Wendel Heinrich, Nele Russwinkel, and Stefan Kopp,
Giving AI agents a sense of control facilitates reinforcement learning in multitasking scenarios, PLOS One , 2026. PLOS.
DOI:https://doi.org/10.1371/journal.pone.0342305
Bibtex: BibTeX
@article{osterdiekhoff2026giving,
  title={Giving AI agents a sense of control facilitates reinforcement learning in multitasking scenarios},
  author={{\"O}sterdiekhoff, Annika and Heinrich, Nils Wendel and Ru{\ss}winkel, Nele and Kopp, Stefan},
  journal={Plos One},
  year={2026}
}
Hanna Hamacher, Rebecca von Engelhardt, Thomas Sievers, André Calero Valdez, and Nele Russwinkel,
The Importance of Reaction Time in Emotional, Continuous Human-Robot-Interaction, in Proceedings of the 18th International Conference on Social Robotics (ICSR + ART 2026) , 2026.
Kai Preuss, Christopher Hilton, Klaus Gramann, and Nele Russwinkel,
Open Access How to Match Cognitive Model Predictions With EEG Data, Topics in Cognitive Science , 2026.
DOI:10.1111/tops.70049
Bibtex: BibTeX
@article{https://doi.org/10.1111/tops.70049,
author = {Preuss, Kai and Hilton, Christopher and Gramann, Klaus and Russwinkel, Nele},
title = {How to Match Cognitive Model Predictions With EEG Data},
journal = {Topics in Cognitive Science},
volume = {n/a},
number = {n/a},
pages = {e70049},
keywords = {Electroencephalography, Cognitive modeling, Independent component analysis, Generalized least squares, Mental spatial transformation},
doi = {https://doi.org/10.1111/tops.70049},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/tops.70049},
eprint = {https://onlinelibrary.wiley.com/doi/pdf/10.1111/tops.70049},
abstract = {Abstract Reliably identifying relevant brain areas implicated by the simulated activity from cognitive models is still an unsolved problem for cognitive modeling, particularly when matching model output with human electroencephalography (EEG) data. We propose a new method involving postprocessing of ACT-R module activity and clustered EEG component activity, and performing generalized least squares analysis to find matching patterns between predicted and observed data, thereby inferring neural substrates of distinct cognitive processes. This approach holds several advantages over other methods by controlling for autocorrelation and unequal variances. To exemplify its application, we used a cognitive model and EEG data from a mental spatial transformation study to show how this method finds areas involved in representational and transformational spatial processing. Parietal areas involved with spatial activity were identified, in line with prior studies on spatial cognition. In addition, previously established associations between ACT-R and brain areas were confirmed. Finally, we discuss limitations and possibilities of the approach.}
}

2025

Thomas Sievers,
Silence is Golden - Making Pauses in Human Utterances Comprehensible for Social Robots in Human-Robot Interaction, in 2025 IEEE/SICE International Symposium on System Integration (SII) , 2025. pp. 526-531.
DOI:10.1109/SII59315.2025.10871032
Bibtex: BibTeX
@INPROCEEDINGS{10871032,
  author={Sievers, Thomas},
  booktitle={2025 IEEE/SICE International Symposium on System Integration (SII)}, 
  title={Silence is Golden - Making Pauses in Human Utterances Comprehensible for Social Robots in Human-Robot Interaction *}, 
  year={2025},
  volume={},
  number={},
  pages={526-531},
  keywords={Sentiment analysis;Large language models;Social robots;System integration;Speech recognition;Chatbots;Text to speech},
  doi={10.1109/SII59315.2025.10871032}}
Thomas Sievers, Nele Russwinkel, and Ralf Möller,
Grounding a social robot's understanding of words with associations in a cognitive architecture, International Conference on Agents and Artificial Intelligence (ICAART), Porto, February 23-25, 2025.
DOI:10.5220/0013144200003890
Bibtex: BibTeX
@conference{icaart25,
author={Thomas Sievers and Nele Russwinkel and Ralf Möller},
title={Grounding a Social Robot’s Understanding of Words with Associations in a Cognitive Architecture},
booktitle={Proceedings of the 17th International Conference on Agents and Artificial Intelligence - Volume 3: ICAART},
year={2025},
pages={406-410},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0013144200003890},
isbn={978-989-758-737-5},
issn={2184-433X},
}
Akasha-Leonie Kessel, Soror Sahri, Sven Groppe, Jinghua Groppe, Hanieh Khorashadizadeh, Marc Pignal, Eva Perez Pimparé, and Régine Vignes-Lebbe,
Impact of Chatbots on User Experience and Data Quality on Citizen Science Platforms, Computers , vol. 14, no. 1, Jan. 2025.
Datei: computers14010021
Thomas Sievers,
A Practical Approach to Child-Robot Interaction in the Classroom, in Proceedings of the AAAI Symposium Series , Burlingame, CA, USA, March 31 - April 2, Mai2025. pp. 425-429.
DOI:10.1609/aaaiss.v5i1.35624
Malte Luttermann, Ralf Möller, and Marcel Gehrke,
Lifting Factor Graphs with Some Unknown Factors for New Individuals, International Journal of Approximate Reasoning , Apr. 2025. Elsevier.
DOI:https://doi.org/10.1016/j.ijar.2025.109371
Datei: Dateilink
Bibtex: BibTeX
@article{LuMoGe25,
	author    = {Malte Luttermann and Ralf Möller and Marcel Gehrke},
	title     = {{Lifting Factor Graphs with Some Unknown Factors for New Individuals}},
	journal   = {International Journal of Approximate Reasoning},
	volume    = {179},
	year      = {2025},
	pages     = {109371},
	publisher = {Elsevier},
}
Thomas Sievers,
Retrieving Memories from a Cognitive Architecture Using Language Models for Social Robot Applications, 1st German Robotics Conference, Nuremberg, March 13-15, Robotics Institute Germany, Mä.2025.
Datei: Dateilink
Thomas Sievers, and Nele Russwinkel,
Using Memory Contents of a Cognitive Model for Prompt Augmentation of a Large Language Model, in IEEE CogSIMA 2025 Conference Proceedings , 2025 IEEE Conference on Cognitive and Computational Aspects of Situation Management (CogSIMA), Jun.2025.
DOI:10.1109/CogSIMA64436.2025.11079485
Bibtex: BibTeX
@INPROCEEDINGS{11079485,
  author={Sievers, Thomas and Russwinkel, Nele},
  booktitle={2025 IEEE Conference on Cognitive and Computational Aspects of Situation Management (CogSIMA)}, 
  title={Using Memory Contents of a Cognitive Model for Prompt Augmentation of a Large Language Model}, 
  year={2025},
  volume={},
  number={},
  pages={172-176},
  keywords={Large language models;Computational modeling;Social robots;Memory management;Decision making;Reliability;Large Language Model;ACT-R;Cognitive Model;Prompt Augmentation;Human-Robot Interaction},
  doi={10.1109/CogSIMA64436.2025.11079485}}
Sarika Jain, Bharat K. Bhargava, Deepshikha Kalra, and Sven Groppe,
Proceedings of the International Health Informatics Conference: IHIC 2023., .... Springer Nature Singapore, 2025.
DOI:10.1007/978-981-97-7190-5
ISBN:9789819771905
Datei: 978-981-97-7190-5
Thomas Sievers, and Nele Russwinkel,
Retrieving Memory Content from a Cognitive Architecture by Impressions from Language Models for Use in a Social Robot, Applied Sciences , vol. 15, no. 10, 2025.
DOI:10.3390/app15105778
Bibtex: BibTeX
@Article{app15105778,
AUTHOR = {Sievers, Thomas and Russwinkel, Nele},
TITLE = {Retrieving Memory Content from a Cognitive Architecture by Impressions from Language Models for Use in a Social Robot},
JOURNAL = {Applied Sciences},
VOLUME = {15},
YEAR = {2025},
NUMBER = {10},
ARTICLE-NUMBER = {5778},
URL = {https://www.mdpi.com/2076-3417/15/10/5778},
ISSN = {2076-3417},
ABSTRACT = {Large Language Models (LLMs) and Vision-Language Models (VLMs) have the potential to significantly advance the development and application of cognitive architectures for human–robot interaction (HRI) to enable social robots with enhanced cognitive capabilities. An essential cognitive ability of humans is the use of memory. We investigate a way to create a social robot with a human-like memory and recollection based on cognitive processes for a better comprehensible and situational behavior of the robot. Using a combined system consisting of an Adaptive Control of Thought-Rational (ACT-R) model and a humanoid social robot, we show how recollections from the declarative memory of the ACT-R model can be retrieved using data obtained by the robot via an LLM or VLM, processed according to the procedural memory of the cognitive model and returned to the robot as instructions for action. Real-world data captured by the robot can be stored as memory chunks in the cognitive model and recalled, for example by means of associations. This opens up possibilities for using human-like judgment and decision-making capabilities inherent in cognitive architectures with social robots and practically offers opportunities of augmenting the prompt for LLM-driven utterances with content from declarative memory, thus keeping them more contextually relevant. We illustrate the use of such an approach in HRI scenarios with the social robot Pepper.},
DOI = {10.3390/app15105778}
}
Thomas Sievers, and Nele Russwinkel,
Visions remembered - Using a Vision-Language Model to set and recall Image Impressions in the Memory of a Cognitive Model, in ICCM , Society for Mathematical Psychology, 2025.
Weblink: https://mathpsych.org/presentation/1972
Sarika Jain, Priyanka Sukul, Jinghua Groppe, Benjamin Warnke, Pooja Harde, Ritik Jangid, Waqas Rehan, Yuri Cotrado, Stefan Fischer, and Sven Groppe,
A scientometric analysis of reviews on the Internet of Things, The Journal of Supercomputing , vol. 81, no. 6, Apr. 2025. Springer Science and Business Media LLC.
Datei: s11227-025-07230-w
Thomas Sievers, and Nele Russwinkel,
A Path to Gradual Individual Experience and Recollection for Social Robots based on a Cognitive Architecture, in Social Robotics , 17th International Conference on Social Robotics + AI (ICSR+AI 2025), Naples, 2025.
DOI:https://doi.org/10.1007/978-981-95-2379-5_57
Bibtex: BibTeX
@InProceedings{10.1007/978-981-95-2379-5_57,
author="Sievers, Thomas
and Russwinkel, Nele",
editor="Staffa, Mariacarla
and Cabibihan, John-John
and Siciliano, Bruno
and Ge, Shuzhi Sam
and Bodenhagen, Leon
and Tapus, Adriana
and Rossi, Silvia
and Cavallo, Filippo
and Fiorini, Laura
and Matarese, Marco
and He, Hongsheng",
title="A Path to Gradual Individual Experience and Recollection for Social Robots Based on a Cognitive Architecture",
booktitle="Social Robotics + AI",
year="2026",
publisher="Springer Nature Singapore",
address="Singapore",
pages="641--647",
abstract="Many attempts are aiming to provide social robots with human-like cognitive abilities such as memory, language comprehension and visual and spatial processing. Cognitive architectures in combination with Large Language Models (LLMs) have the potential to act as basic components for such a system. We demonstrate the use of an Adaptive Control of Thought-Rational (ACT-R) model in combination with an LLM to store experiences from human-robot interaction (HRI) in the declarative memory of the cognitive architecture for a humanoid social robot. These experiences can be retrieved from memory as associated recollections and used for the robot's actions and for prompt augmentation of the LLM. This type of memory also allows the creation, storage and updating of person models from interactions with different people, which enables the robot to get to know these people better through temporally unrelated interactions and to respond to them individually.",
isbn="978-981-95-2379-5"
}
Malte Luttermann, Ralf Möller, and Marcel Gehrke,
Lifted Model Construction Without Normalisation: A Vectorised Approach to Exploit Symmetries in Factor Graphs, in Proceedings of the Third Learning on Graphs Conference (LoG-2024) , PMLR, Jul.2025. pp. 46:1-46:17.
Weblink: https://proceedings.mlr.press/v269/luttermann25a.html
Datei: Dateilink
Bibtex: BibTeX
@inproceedings{LuMoGe25,
    author    = {Malte Luttermann and Ralf Möller and Marcel Gehrke},
    title     = {{Lifted Model Construction without Normalisation: A Vectorised Approach to Exploit Symmetries in Factor Graphs}},
    booktitle = {Proceedings of the Third Learning on Graphs Conference (LoG-2024)},
    year      = {2025},
    pages     = {46:1-46:17},
    publisher = {{PMLR}},
}
Thomas Sievers, and Nele Russwinkel,
Personalized Interactions With a Social Robot Based on Recollections From a Cognitive Model, in Perspectives on Humanities‑Centered AI and Formal & Cognitive Reasoning Workshop , CEUR Workshop Proceedings, 2025.
Weblink: https://ceur-ws.org/Vol-4058/
Datei: paper6.pdf
Malte Luttermann, Jan Speller, Marcel Gehrke, Tanya Braun, Ralf Möller, and Mattis Hartwig,
Approximate Lifted Model Construction, in Proceedings of the Thirty-Fourth International Joint Conference on Artificial Intelligence (IJCAI-2025) , IJCAI Organization, Aug.2025. pp. 9077-9085.
DOI:https://doi.org/10.24963/ijcai.2025/1009
Datei: Dateilink
Bibtex: BibTeX
@inproceedings{LuSpGeBrMoHa25,
	author    = {Malte Luttermann and Jan Speller and Marcel Gehrke and Tanya Braun and Ralf Möller and Mattis Hartwig},
	title     = {{Approximate Lifted Model Construction}},
	booktitle = {Proceedings of the Thirty-Fourth International Joint Conference on Artificial Intelligence (IJCAI-2025)},
	year      = {2025},
	pages     = {9077--9085},
	publisher = {{IJCAI} Organization},
}
Mohammad Khodaygani, Ali Aliyu Tanko, Timon Dohnke, Tobias Groth, Edgar Baake, Martin Leucker, and Nele Russwinkel,
Cognitive Modeling of Agents: Integrating Emotions, Goals, Needs, and Decision-Making, in Proceedings of the Joint Workshop on Humanities-Centred Artificial Intelligence and Formal \& Cognitive Reasoning (CHAI+FCR 2025) , Potsdam, Germany , Sep.2025.
Weblink: https://ceur-ws.org/Vol-4058/paper7.pdf
Jan Speller, Malte Luttermann, Marcel Gehrke, and Tanya Braun,
Towards Explainability of Approximate Lifted Model Construction: A Geometric Perspective, in Proceedings of the First Joint Workshop on Humanities-Centered Artificial Intelligence and Formal & Cognitive Reasoning (CHAI-2025 and FCR-2025) , CEUR, Okt.2025. pp. 41-56.
Weblink: https://ceur-ws.org/Vol-4058/paper4.pdf
Datei: Dateilink
Bibtex: BibTeX
@inproceedings{SpLuGeBr25,
	author    = {Jan Speller and Malte Luttermann and Marcel Gehrke and Tanya Braun},
	title     = {{Towards Explainability of Approximate Lifted Model Construction: A Geometric Perspective}},
	booktitle = {Proceedings of the Eleventh Workshop on Formal and Cognitive Reasoning (FCR-2025)},
	year      = {2025},
	pages     = {41--56},
	publisher = {{CEUR}},
}
Jan Speller, Malte Luttermann, Marcel Gehrke, and Tanya Braun,
Compression versus Accuracy: A Hierarchy of Lifted Models, in Proceedings of the Twenty-Eighth European Conference on Artificial Intelligence (ECAI-2025) , IOS Press, Okt.2025. pp. 5051-5058.
DOI:https://doi.org/10.3233/FAIA251420
Datei: Dateilink
Bibtex: BibTeX
@inproceedings{SpLuGeBr25,
	author    = {Jan Speller and Malte Luttermann and Marcel Gehrke and Tanya Braun},
	title     = {{Compression versus Accuracy: A Hierarchy of Lifted Models}},
	booktitle = {Proceedings of the Twenty-Eighth European Conference on Artificial Intelligence (ECAI-2025)},
	year      = {2025},
	pages     = {5051--5058},
	publisher = {{IOS} Press},
}
Jinghua Groppe, Nitin Nayak, Tobias Winker, Umut Çalıkyılmaz, and Sven Groppe,
"QC4DB: Beschleunigung von relationalen Datenbankmanagementsystemen durch Quantenrechner Teilvorhaben: Datenbank Optimierungen (DBOpt)" Hannover : Technische Informationsbibliothek, 2025.
Datei: 24530
Sven Groppe, Valter Uotila, and Jinghua Groppe,
Opportunities and Challenges for Data Quality in the Era of Quantum Computing, arXiv , vol. 2512.00870, 2025.
Datei: arxiv.2512.00870
Umut Çalıkyılmaz, Nitin Nayak, Jinghua Groppe, and Sven Groppe,
OptiMA: A Transaction-Based Framework with Throughput Optimization for Very Complex Multi-Agent Systems, arXiv , vol. 2511.03761, 2025.
Datei: arxiv.2511.03761
Hasnain Sikora, Shridevi Krishnakumar, and Sven Groppe,
Weather forecasting using quantum-based LSTM: A comparative analysis, Results in Engineering , vol. 28, 2025. Elsevier BV.
Datei: j.rineng.2025.107995