collaborators

6 papers

cs.LG2026

DARC: Disagreement-Aware Alignment via Risk-Constrained Decoding

Mingxi Zou, Jiaxiang Chen, Junfan Li +4

Preference-based alignment methods (e.g., RLHF, DPO) typically optimize a single scalar objective, implicitly averaging over heterogeneous human preferences. In practice, systemati…

cs.AI2026

Remember the Decision, Not the Description: A Rate-Distortion Framework for Agent Memory

Mingxi Zou, Zhihan Guo, Langzhang Liang +6

Long-horizon language agents must operate under limited runtime memory, yet existing memory mechanisms often organize experience around descriptive criteria such as relevance, sali…

cs.AI2026

Guideline Forest: Retrieval-Augmented Reasoning with Branching Experience-Induced Guidelines

Jiaxiang Chen, Zhuo Wang, Mingxi Zou +2

Retrieval-augmented generation (RAG) has been widely adopted to ground large language models (LLMs) in external knowledge, yet it remains largely underexplored for improving reason…

physics.soc-ph2026

FinEvo: From Isolated Backtests to Ecological Market Games for Multi-Agent Financial Strategy Evolution

Mingxi Zou, Jiaxiang Chen, Aotian Luo +4

Conventional financial strategy evaluation relies on isolated backtests in static environments. Such evaluations assess each policy independently, overlook correlations and interac…

cs.LG2025

FinHEAR: Human Expertise and Adaptive Risk-Aware Temporal Reasoning for Financial Decision-Making

Jiaxiang Chen, Mingxi Zou, Zhuo Wang +4

Financial decision-making presents unique challenges for language models, demanding temporal reasoning, adaptive risk assessment, and responsiveness to dynamic events. While large…

cs.AI2025

From Implicit Exploration to Structured Reasoning: Leveraging Guideline and Refinement for LLMs

Jiaxiang Chen, Zhuo Wang, Mingxi Zou +4

Large language models (LLMs) have advanced general-purpose reasoning, showing strong performance across diverse tasks. However, existing methods often rely on implicit exploration,…