arXiv AI

Cost-Optimal Decision Diagrams for Stochastic Boolean Function Evaluation

arXiv:2606. 24672v1 Announce Type: new Abstract: In many decision-making scenarios, acquiring information incurs different costs.

arXiv Machine Learning
Sep 10

Can Revealed Preferences Clarify LLM Alignment and Steering?

The paper proposes an empirical pipeline to estimate the preferences that a large language model (LLM) implicitly optimizes by combining the model’s probability distribution over unknowns with its chosen action, and fitting a discrete choice model to recover the underlying cost function. This revealed-preference framework enables rigorous assessment of whether LLMs act consistently toward a goal, can articulate objectives that align with their decision policy, and can be steered by prompting to follow a user-specified cost function. Experiments across four medical diagnosis domains and various frontier and open-source models show that while many LLMs exhibit internal coherence, they still struggle to accurately report or adopt preferences when guided by users.

By Khurram Yamin, Jingjing Tang, Eric Horvitz, Bryan Wilder