Tobias Käfer — accepted AI-conference papers

2025

Evaluating the Performance of RAG Methods for Conversational AI in the Airport Domain

Yuyang Li, Pjm Kerbusch, Rhr Pruim, Tobias Käfer

NAACL 2025industry

Airports from the top 20 in terms of annual passengers are highly dynamic environment with thousands of flights daily, and they aim to increase the degree of automation. To contribute to this, we implemented a Conversational AI system that enables staff in an airport to communicate with flight infor…

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2025

Positional Overload: Positional Debiasing and Context Window Extension for Large Language Models using Set Encoding

Lukas Kinder, Lukas Edman, Alexander Fraser, Tobias Käfer

ACL 2025long

Large Language Models (LLMs) typically track the order of tokens using positional encoding, which causes the following problems: positional bias, where the model is influenced by an ordering within the prompt, and a fixed context window, as models struggle to generalize to positions beyond those enc…

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