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Team > Florian Lehmann

Portrait Florian Lehmann Florian Lehmann
Portrait Florian Lehmann

Faculty of Mathematics, Physics and Computer Science

Research Interests

My research connects Human-Computer Interaction and Machine Learning. By conducting realistic field experiments, I am looking at how we interact with intelligent systems. In particular, I am focusing in initiative in interaction with intelligent systems. Mixed-initiative interaction describes a concept where not only the human could take the initiative but also the system. A practical example would be the collaboration on a text document with an AI author that can draft or summarize texts. In such scenarios, questions arise on how, where, and when the human or the system takes the initiative. With my research, I work on elucidating these questions and explore underlying concepts in human-AI interaction.

Research Tool

As a side project, I am building a software system with the working title "solanum". Solanum enables HCI researchers to set up web-based experiments that combine interactive prototypes and questionnaires. It takes the burden of programming the procedure flow while offering interfaces for plugging in web-based interactive prototypes and questionnaires. This way, researchers can focus on the methods and the development of the prototypes. On top of that, solanum comes with easy-to-use data logging.

At the moment, the systems consists of three parts:

  1. Backend, written in python with fastapi
  2. Frontend Library, written in TypeScript
  3. Frontend, that controls the procedure flow, written in ES6 and React

Work in progress: Frontend for administrating the experiments

If you are interested in using solanum for running your own experiments, reach out to me via email.

Portrait Florian Lehmann

Faculty of Mathematics, Physics and Computer Science



Karim Benharrak, Tim Zindulka, Florian Lehmann, Hendrik Heuer, Daniel Buschek: Writer-Defined AI Personas for On-Demand Feedback Generation. - (Paper), Veranstaltung: CHI Conference on Human Factors in Computing Systems, 11-16 May 2024, Honolulu, Hawaii, USA.

Fiona Draxler, Anna Werner, Florian Lehmann, Matthias Hoppe, Albrecht Schmidt, Daniel Buschek, Robin Welsch: The AI Ghostwriter Effect : When Users Do Not Perceive Ownership of AI-Generated Text But Self-Declare as Authors. In: ACM Transactions on Computer-Human Interaction, 31 (2024). - .


Hai Dang, Sven Goller, Florian Lehmann, Daniel Buschek: Choice Over Control : How Users Write with Large Language Models using Diegetic and Non-Diegetic Prompting. - (Paper), Veranstaltung: CHI Conference on Human Factors in Computing Systems, 23.04. - 28.04.2023, Hamburg, Germany.

Florian Lehmann, Itto Kornecki, Daniel Buschek, Anna Maria Feit: Typing Behavior is About More than Speed : Users' Strategies for Choosing Word Suggestions Despite Slower Typing Rates. In: Proceedings of the ACM on Human-Computer Interaction, 7 (2023). - .


Hai Dang, Karim Benharrak, Florian Lehmann, Daniel Buschek: Beyond Text Generation : Supporting Writers with Continuous Automatic Text Summaries. - (Paper), Veranstaltung: ACM Symposium on User Interface Software and Technology, 29.10. - 02.11.2022, Bend, Oregon, USA.

Florian Lehmann, Niklas Markert, Hai Dang, Daniel Buschek: Suggestion Lists vs. Continuous Generation : Interaction Design for Writing with Generative Models on Mobile Devices Affect Text Length, Wording and Perceived Authorship. In: Mensch und Computer 2022 : Tagungsband. - New York : ACM, 2022. - S. 1-19.

Hai Dang, Lukas Mecke, Florian Lehmann, Sven Goller, Daniel Buschek: How to Prompt? Opportunities and Challenges of Zero- and Few-Shot Learning for Human-AI Interaction in Creative Applications of Generative Models. - (speechpap), Veranstaltung: ACM CHI Conference on Human Factors in Computing Systems - Workshops, 10.05.2022, Online.

Karim Benharrak, Florian Lehmann, Hai Dang, Daniel Buschek: SummaryLens : A Smartphone App for Exploring Interactive Use of Automated Text Summarization in Everyday Life. - (Poster), Veranstaltung: 27th International Conference on Intelligent User Interfaces, IUI 2022, 22. - 25.03.2022, Helsinki, Finland, online.


Daniel Buschek, Lukas Mecke, Florian Lehmann, Hai Dang: Nine Potential Pitfalls when Designing Human-AI Co-Creative Systems. - (speechpap), Veranstaltung: 26th International Conference on Intelligent User Interfaces, 13.04.2021 - 17.04.2021, Online (Originally: College Station, Texas, USA).


Florian Lehmann, Daniel Buschek: Heartbeats in the Wild : A Field Study Exploring ECG Biometrics in Everyday Life. - (Paper), Veranstaltung: CHI Conference on Human Factors in Computing Systems, 25.04.2020 - 30.04.2020, Honolulu, Hawaii, USA.

Florian Lehmann, Daniel Buschek: Examining Autocompletion as a Basic Concept for Interaction with Generative AI. In: i-com : Journal of Interactive Media, 19 (2020). - S. 251-264.

Portrait Florian Lehmann

Faculty of Mathematics, Physics and Computer Science

Florian Lehmann
Doctoral Researcher

AI Building, room 1.49
Universitätsstraße 30
95447 Bayreuth

E-mail: florian.lehmann@uni-bayreuth.de
Homepage: Personal Website
Google Scholar: Florian Lehmann on Google Scholar
ORCID: Florian Lehmann on ORCID
ResearchGate: Florian Lehmann on ResearchGate

Webmaster: Dr. Daniel Buschek

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