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Jianlong Chen

5 accepted papers

2026

Epistemic Gain, Aleatoric Cost: Uncertainty Decomposition in Multi-Agent Debate for Math Reasoning

ICML 2026poster

Multi-Agent Debate (MAD) has shown promise in leveraging collective intelligence to improve reasoning and reduce hallucinations, yet it remains unclear how information exchange shapes the underlying ability. Empirically, MAD exhibits paradoxical phenomena, such as accuracy improvement accompanied by…

Cited by 0SourceScholar
2026

GeoBench: Rethinking Multimodal Geometric Problem-Solving via Hierarchical Evaluation

ICLR 2026poster

Geometric problem solving constitutes a critical branch of mathematical reasoning, requiring precise analysis of shapes and spatial relationships. Current evaluations of geometric reasoning in vision-language models (VLMs) face limitations, including the risk of test data contamination from textbook…

Cited by 0SourcecodeScholar
2026

Revisiting Sharpness-Aware Minimization: A More Faithful and Effective Implementation

ICLR 2026poster

Sharpness-Aware Minimization (SAM) enhances generalization by minimizing the maximum training loss within a predefined neighborhood around the parameters. However, its practical implementation approximates this as gradient ascent(s) followed by applying the gradient at the ascent point to update the…

Cited by 0SourcecodeScholar
2024

MD tree: a model-diagnostic tree grown on loss landscape

ICML 2024poster

This paper considers ''model diagnosis'', which we formulate as a classification problem. Given a pre-trained neural network (NN), the goal is to predict the source of failure from a set of failure modes (such as a wrong hyperparameter, inadequate model size, and insufficient data) without knowing t…