Stefan Schaffer

According to our database, Stefan Schaffer authored at least 31 papers between 2009 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2024

Improving Conversational User Interfaces for Citizen Complaint Management through enhanced Contextual Feedback.

Kai Karren, Michael Schmitz, Stefan Schaffer

Proceedings of the ACM Conversational User Interfaces 2024, 2024

Large Language Models Are Echo Chambers.

Jan Nehring, Aleksandra Gabryszak, Pascal Jürgens, Aljoscha Burchardt, Stefan Schaffer, Matthias Spielkamp, Birgit Stark

Proceedings of the 2024 Joint International Conference on Computational Linguistics, 2024

2023

Workshop on Smart Urban Micromobility.

Tanja Schneeberger, Stefan Schaffer, Dimitra Tsovaltzi, Lara Chehayeb, Patrick Gebhard

Proceedings of the Mensch und Computer 2023, 2023

An analysis of the effects of swarm cycling on cyclists' stress levels.

Stefan Schaffer, Linglong Meng, Alaaeddine Hemdane, Katrin Wolf, Dimitra Tsovaltzi, Lara Chehayeb, Patrick Gebhard

Proceedings of the Mensch und Computer 2023, 2023

Optimization of Swarm Formation in Swarm Cycling.

Linglong Meng, Krutarth Parwal, Stefan Schaffer

Proceedings of the Mensch und Computer 2023, 2023

"HalloBzar": A German chatbot for accessing the regional digital marketplace.

Vanishika Bawa, Ibrahim Baroud, Stefan Schaffer

Proceedings of the 53. Jahrestagung der Gesellschaft für Informatik, INFORMATIK 2023, Designing Future, 2023

Imagination is All You Need! Curved Contrastive Learning for Abstract Sequence Modeling Utilized on Long Short-Term Dialogue Planning.

Justus-Jonas Erker, Stefan Schaffer, Gerasimos Spanakis

Proceedings of the Findings of the Association for Computational Linguistics: ACL 2023, 2023

2022

A Connected Swarm Cycling System.

Linglong Meng, Stefan Schaffer, Vincent Wappenschmitt

Proceedings of the IEEE International Smart Cities Conference, 2022

User Experience of a Conversational User Interface in a Museum.

Stefan Schaffer, Aaron Ruß, Oliver Gustke

Proceedings of the ArtsIT, Interactivity and Game Creation, 2022

2021

Factoid and Open-Ended Question Answering with BERT in the Museum Domain.

Md. Mahmud Uz Zaman, Stefan Schaffer, Tatjana Scheffler

Proceedings of the Conference on Digital Curation Technologies (Qurator 2021), Berlin, Germany, February 8th - to, 2021

Questions and Answers: Important Steps to Let AI Chatbots Answer Questions in the Museum.

Stefan Schaffer, Aaron Ruß, Mino Lee Sasse, Louise Schubotz, Oliver Gustke

Proceedings of the ArtsIT, Interactivity and Game Creation, 2021

2020

Accelerated evolution of tissue-specific genes mediates divergence amidst gene flow in European green lizards.

Sree Rohit Raj Kolora, Deisy Morselli Gysi, Stefan Schaffer, Rui Faria, Klaus Henle, Peter F. Stadler, Martin Schlegel, Katja Nowick, Marton Szablocs, Annegrett Grimm-Seyfarth

Dataset, August, 2020

A Reporting Assistant for Railway Security Staff.

Linglong Meng, Stefan Schaffer

Proceedings of the 2nd Conference on Conversational User Interfaces, 2020

2019

MOLI: Smart Conversation Agent for Mobile Customer Service.

Guoguang Zhao, Jianyu Zhao, Yang Li, Christoph Alt, Robert Schwarzenberg, Leonhard Hennig, Stefan Schaffer, Sven Schmeier, Changjian Hu, Feiyu Xu

Inf., 2019

Conversation is multimodal: thus conversational user interfaces should be as well.

Stefan Schaffer, Norbert Reithinger

Proceedings of the 1st International Conference on Conversational User Interfaces, 2019

2018

Towards chatbots in the museum.

Stefan Schaffer, Oliver Gustke, Julia Oldemeier, Norbert Reithinger

Proceedings of the 2nd Workshop on Mobile Access to Cultural Heritage co-located with 20th International Conference on Human-Computer Interaction with Mobile Devices and Services, 2018

2016

Modeling modality selection in multimodal human-computer interaction: extending automated usability evaluation tools for multimodal input.

Stefan Schaffer

PhD thesis, 2016

2015

Modeling input modality choice in mobile graphical and speech interfaces.

Stefan Schaffer, Robert Schleicher, Sebastian Möller

Int. J. Hum. Comput. Stud., 2015

2014

Intermodal personalized Travel Assistance and Routing Interface.

Stefan Schaffer, Norbert Reithinger

Proceedings of the Mensch & Computer 2014 - Tagungsband, 14. Fachübergreifende Konferenz für Interaktive und Kooperative Medien - Interaktiv unterwegs - Freiräume gestalten, 31. August, 2014

2012

Error-prone Voice and Graphical User Interfaces in a Mobile Application.

Stefan Schaffer, Michael Minge

Proceedings of the 10th ITG Conference on Speech Communication, 2012

2011

Modality Selection and Perceived Mental Effort in a Mobile Application.

Stefan Schaffer, Benjamin Jöckel, Ina Wechsung, Robert Schleicher, Sebastian Möller

Proceedings of the 12th Annual Conference of the International Speech Communication Association, 2011

A Model of Shortcut Usage in Multimodal Human-Computer Interaction.

Stefan Schaffer, Robert Schleicher, Sebastian Möller

Proceedings of the Digital Human Modeling, 2011

2010

Investigating modality selection strategies.

Ina Wechsung, Klaus-Peter Engelbrecht, Anja Naumann, Sebastian Möller, Stefan Schaffer, Robert Schleicher

Proceedings of the 2010 IEEE Spoken Language Technology Workshop, 2010

The influence of expertise and efficiency on modality selection strategies and perceived mental effort.

Ina Wechsung, Stefan Schaffer, Robert Schleicher, Anja Naumann, Sebastian Möller

Proceedings of the 11th Annual Conference of the International Speech Communication Association, 2010

Neugestaltung der VDE-ITG-Richtlinie zur Bewertung von Kommunikationsendeinrichtungen.

Sebastian Möller, Ina Wechsung, Stefan Schaffer, Robert Schleicher, Julia Seebode

Proceedings of the 9. ITG-Fachtagung Sprachkommunikation 2010, 2010

2009

Usability-Evaluation multimodaler Schnittstellen: Ist das Ganze die Summe seiner Teile?

Ina Wechsung, Klaus-Peter Engelbrecht, Julia Seebode, Stefan Schaffer, Florian Metze, Sebastian Möller

Proceedings of the Mensch & Computer 2009: Grenzenlos frei!?, 2009

Benutzerstudien zur Bewertung multimodaler, interaktiver Anzeigetafeln in unterschiedlichen Entwicklungsstufen.

Stefan Schaffer, Julia Seebode, Ina Wechsung, Florian Metze, Sebastian Möller

Proceedings of the Workshop-Proceedings der Tagung Mensch & Computer 2009, 2009

Predicting the quality of multimodal systems based on judgments of single modalities.

Ina Wechsung, Klaus-Peter Engelbrecht, Anja B. Naumann, Stefan Schaffer, Julia Seebode, Florian Metze, Sebastian Möller

Proceedings of the 10th Annual Conference of the International Speech Communication Association, 2009

Influence of training on direct and indirect measures for the evaluation of multimodal systems.

Julia Seebode, Stefan Schaffer, Ina Wechsung, Florian Metze

Proceedings of the 10th Annual Conference of the International Speech Communication Association, 2009

Usability Evaluation of Multimodal Interfaces: Is the Whole the Sum of Its Parts?

Ina Wechsung, Klaus-Peter Engelbrecht, Stefan Schaffer, Julia Seebode, Florian Metze, Sebastian Möller

Proceedings of the Human-Computer Interaction. Novel Interaction Methods and Techniques, 2009

Reliable Evaluation of Multimodal Dialogue Systems.

Florian Metze, Ina Wechsung, Stefan Schaffer, Julia Seebode, Sebastian Möller

Proceedings of the Human-Computer Interaction. Novel Interaction Methods and Techniques, 2009