4 papers
From Profiling to Synthesis: Benchmarking Implicit Behavioral Alignment in Personalized LLM Agents
Jiajia Song, Bobo Li, Haiwen Yi +6
Large Language Models have enabled increasingly capable autonomous agents, yet personalization remains critical for making such agents practically useful. Recent benchmarks have be…
HarnessMDP: Learning to Control LLM Agent Harnesses with Offline Reinforcement Learning
Haiwen Yi, Xinyuan Song
The execution harness is a critical component of LLM agents, shaping how the agent interacts with its environment and organizes multi-step execution. Prior work has shown that impr…
ManifoldFlow: Spectrum-Learnable Stiefel Optimization via SPD Relaxation
Haiwen Yi, Xinyuan Song
Orthogonal and Stiefel constraints are widely used in neural network optimization to control weight geometry, improve conditioning, and stabilize signal propagation. Yet standard S…
Measuring Harness-Induced Belief Divergence in Multi-Step LLM Agents
Haiwen Yi, Xinyuan Song
Software agents are becoming increasingly important in modern coding workflows, where they solve complex tasks through multi-step interaction with code repositories. A central comp…