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André Panisson

3 accepted papers

2026

The Geometry of Representational Failures in Vision Language Models

ICML 2026poster

Vision-Language Models (VLMs) exhibit puzzling failures in multi-object visual tasks, such as hallucinating non-existent elements or failing to identify the most similar objects among distractions. While these errors mirror human cognitive constraints, such as the "Binding Problem'', the internal me…

Cited by 4SourceScholar
2025

Learning Individual Behavior in Agent-Based Models with Graph Diffusion Networks

NeurIPS 2025poster

Agent-Based Models (ABMs) are powerful tools for studying emergent properties in complex systems. In ABMs, agent behaviors are governed by local interactions and stochastic rules. However, these rules are ad hoc and, in general, non-differentiable, limiting the use of gradient-based methods for opti…

Cited by 0SourcecodeScholar
2025

Size-adaptive Hypothesis Testing for Fairness

NeurIPS 2025poster

Determining whether an algorithmic decision-making system discriminates against a specific demographic typically involves comparing a single point estimate of a fairness metric against a predefined threshold. This practice is statistically brittle: it ignores sampling error and treats small demograp…

Cited by 0SourcecodeScholar