activity
20242026
collaborators

11 papers

cs.AI2026

CAS: Conformalized Agentic Search via Adaptive Retrieval and Policy Weighting

Zixi Zhu, Jiayuan Su, Jian Zhang +2

Search Agents face a severe reliability crisis during reinforcement learning (RL) fine-tuning. Heuristic Top-K retrieval often causes critical evidence loss or noise inclusion, whi…

cs.CL2025

SheetBrain: A Neuro-Symbolic Agent for Accurate Reasoning over Complex and Large Spreadsheets

Ziwei Wang, Jiayuan Su, Mengyu Zhou +7

Understanding and reasoning over complex spreadsheets remain fundamental challenges for large language models (LLMs), which often struggle with accurately capturing the complex str…

cs.CL2025

CP-Router: An Uncertainty-Aware Router Between LLM and LRM

Jiayuan Su, Fulin Lin, Zhaopeng Feng +7

Recent advances in Large Reasoning Models (LRMs) have significantly improved long-chain reasoning capabilities over Large Language Models (LLMs). However, LRMs often produce unnece…

cs.CL2025

MT: Scaling MLLM-based Text Image Machine Translation via Multi-Task Reinforcement Learning

Zhaopeng Feng, Yupu Liang, Shaosheng Cao +7

Text Image Machine Translation (TIMT)-the task of translating textual content embedded in images-is critical for applications in accessibility, cross-lingual information access, an…

cs.CL2025

MT-R1-Zero: Advancing LLM-based Machine Translation via R1-Zero-like Reinforcement Learning

Zhaopeng Feng, Shaosheng Cao, Jiahan Ren +7

Large-scale reinforcement learning (RL) methods have proven highly effective in enhancing the reasoning abilities of large language models (LLMs), particularly for tasks with verif…

cs.CL2025

MT-RewardTree: A Comprehensive Framework for Advancing LLM-Based Machine Translation via Reward Modeling

Zhaopeng Feng, Jiahan Ren, Jiayuan Su +3

Process reward models (PRMs) have shown success in complex reasoning tasks for large language models (LLMs). However, their application to machine translation (MT) remains underexp…

cs.LG2025

Class Incremental Fault Diagnosis under Limited Fault Data via Supervised Contrastive Knowledge Distillation

Hanrong Zhang, Yifei Yao, Zixuan Wang +4

Class-incremental fault diagnosis requires a model to adapt to new fault classes while retaining previous knowledge. However, limited research exists for imbalanced and long-tailed…

cs.CL2024

M-MAD: Multidimensional Multi-Agent Debate for Advanced Machine Translation Evaluation

Zhaopeng Feng, Jiayuan Su, Jiamei Zheng +5

Recent advancements in large language models (LLMs) have given rise to the LLM-as-a-judge paradigm, showcasing their potential to deliver human-like judgments. However, in the fiel…

cs.CL2024

PersonaMath: Boosting Mathematical Reasoning via Persona-Driven Data Augmentation

Jing Luo, Longze Chen, Run Luo +12

While closed-source Large Language Models (LLMs) demonstrate strong mathematical problem-solving abilities, open-source models still face challenges with such tasks. To bridge this…

cs.CL2024

API Is Enough: Conformal Prediction for Large Language Models Without Logit-Access

Jiayuan Su, Jing Luo, Hongwei Wang +1

This study aims to address the pervasive challenge of quantifying uncertainty in large language models (LLMs) without logit-access. Conformal Prediction (CP), known for its model-a…

cs.CL2024

Dialectical Alignment: Resolving the Tension of 3H and Security Threats of LLMs

Shu Yang, Jiayuan Su, Han Jiang +5

With the rise of large language models (LLMs), ensuring they embody the principles of being helpful, honest, and harmless (3H), known as Human Alignment, becomes crucial. While exi…