collaborators

5 papers

cs.AI2026

Reinforcing Multimodal Reasoning via Token-Level Perception-Grounded Advantage Estimation

Zhihan Zhang, Lizi Liao

Reinforcement Learning with Verifiable Rewards (RLVR) has improved the reasoning capabilities of Multimodal Large Language Models (MLLMs), yet existing frameworks rely on coarse, s…

cs.CL2026

Aligned Multi-View Scripts for Universal Chart-to-Code Generation

Zhihan Zhang, Lizi Liao

Chart-to-code generation converts a chart image into an executable plotting script, enabling faithful reproduction and editable visualizations. Existing methods are largely Python-…

cs.CL2025

Context-Aware Hierarchical Taxonomy Generation for Scientific Papers via LLM-Guided Multi-Aspect Clustering

Kun Zhu, Lizi Liao, Yuxuan Gu +3

The rapid growth of scientific literature demands efficient methods to organize and synthesize research findings. Existing taxonomy construction methods, leveraging unsupervised cl…

cs.CL2025

XFinBench: Benchmarking LLMs in Complex Financial Problem Solving and Reasoning

Zhihan Zhang, Yixin Cao, Lizi Liao

Solving financial problems demands complex reasoning, multimodal data processing, and a broad technical understanding, presenting unique challenges for current large language model…

cs.LG2025

Good Learners Think Their Thinking: Generative PRM Makes Large Reasoning Model More Efficient Math Learner

Tao He, Rongchuan Mu, Lizi Liao +3

Large reasoning models (LRMs) have recently shown promise in solving complex math problems when optimized with Reinforcement Learning (RL). But conventional approaches rely on outc…