Reasoning models
arxiv arXiv cs.AI · 9d ago

Kolmogorov Regression for Robust Diffusion Policies

A backward Kolmogorov equation lifts diffusion policies to a Cameron-Martin space, replacing stochastic score matching with a deterministic PDE. This approach achieves convergence bounds tied to kernel effective rank, improved trajectory regularity, and a failure detector without rewards, showing 17% higher reward and 67.6% reduced drift on PushT, and 28.4% lower RMSE with perfect bottleneck detection on a manufacturing line. Hamilton-Jacobi theory reduces deadlock events by 96% in simulations.

arxiv arXiv cs.AI · 9d ago

RubricsTree: Scalable Evaluation Framework for Personal Health Agents

RubricsTree introduces a hierarchical taxonomy of over 100 clinically-verifiable Boolean rubrics, evolved from 4,000 real user queries via human-in-the-loop curation. It enables scalable, expert-aligned evaluation of personal health agents by dynamically routing queries to relevant rubrics and outperforms baseline methods in alignment, context degradation detection, and model performance gains of up to 66% on HealthBench.

arxiv arXiv cs.CL · 9d ago

Soft Prompting for Language Adherence in Multimodal LLMs

A soft prompting approach is proposed to improve language adherence in multimodal LLMs without strict output constraints. The method introduces a new metric to quantify language violations and evaluates three strategies: zero-shot prompting, supervised fine-tuning, and Chain-of-Thought reasoning. Results show effectiveness in reducing language violations while preserving ASR performance across multiple languages, with trade-offs considered under different compute constraints.

arxiv arXiv cs.CL · 9d ago

Visuals Lie, Consistency Speaks: Disentangling Spatial Attention from Reliability in Vision-Language Models

A study challenges the assumption that visual attention signals reliability in vision-language models. It finds near-zero correlation between spatial attention and accuracy, showing instead that self-consistency across reasoning paths is a stronger predictor of truth. Reliability is better explained by generation dynamics and internal state distributions, not visual attention patterns.