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Author

Roger Zimmermann

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#natural language process... Preprint Oct 2026

DirectSpeech2LLM: A Simple End-to-End Framework to Mitigate Prompt Overfitting in Speech-LLMs

Speech-LLMs often exhibit prompt overfitting, where models solely trained on automatic speech recognition (ASR) instruction fail to generalize to new instructions such as speech translation and continue to behave primarily as ASR system. We propose DirectSpeech2LLM, a simple end-to-end framework that preserves the inst...

Hemant Yadav, Sunayana Sitaram, R. Zimmermann et al. · 0 citations
Preprint Aug 2026

Evaluating Rational Contracting in Natural Language

It is found that current LLM-based agents reach agreement reliably, and negotiate efficient contracts when environmental uncertainty is low, but under high uncertainty, they often fail to negotiate satisfiable, efficient, or mutually beneficial contracts.

Bhavyesh Sajja, Max Kleiman-Weiner, R. Zimmermann et al. · 0 citations
Jul 2026

JigShape: Evaluating Visual-Geometric Reasoning in VLMs through Jigsaw Puzzles

A benchmark with tab-and-blank interlocking pieces where geometric constraints provide strong local compatibility requirements that, combined with visual content, yield unambiguous ground truth is introduced, establishing scalable geometric reasoning as an open challenge for vision-language models.

Shawn Li, Wei Yang, Jike Zhong et al. · 1 citation

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