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Guillaume Dumas

4 accepted papers

2026

Persistent Instability in LLM’s Personality Measurements: Effects of Scale, Reasoning, and Conversation History

AAAI 2026technical

Large language models require consistent behavioral patterns for safe deployment, yet there are indications of large variability that may lead to an instable expression of personality traits in these models. We present PERSIST (PERsonality Stability in Synthetic Text), a comprehensive evaluation fra

Cited by 0SourcePDFScholar
2026

Position: Collusion Risks Among AI Reasoning Agents Justify Certification Requirements for Making Market Decisions

ICML 2026poster

This position paper argues that AI agents with chain-of-thought reasoning capabilities are predisposed to exhibit collusive behavior and should be required to obtain behavioral certification before making decisions that affect economic markets. This is because integrating these agents into society c…

Cited by 0SourceScholar
2025

Grokking Beyond the Euclidean Norm of Model Parameters

ICML 2025poster

Grokking refers to a delayed generalization following overfitting when optimizing artificial neural networks with gradient-based methods. In this work, we demonstrate that grokking can be induced by regularization, either explicit or implicit. More precisely, we show that when there exists a model…

Cited by 0SourcePDFScholar