activity
20242026
collaborators

11 papers

cs.CL2026

BaseCal: Unsupervised Confidence Calibration via Base Model Signals

Hexiang Tan, Wanli Yang, Junwei Zhang +7

Reliable confidence is essential for trusting the outputs of LLMs, yet widely deployed post-trained LLMs (PoLLMs) typically compromise this trust with severe overconfidence. In con…

cs.LG2026

DataArc-SynData-Toolkit: A Unified Closed-Loop Framework for Multi-Path, Multimodal, and Multilingual Data Synthesis

Zhichao Shi, Cehao Yang, Hao Zhou +6

Synthetic data has emerged as a crucial solution to the data scarcity bottleneck in large language models (LLMs), particularly for specialized domains and low-resource languages. H…

cs.CV2026

ROMA: Real-time Omni-Multimodal Assistant with Interactive Streaming Understanding

Xueyun Tian, Wei Li, Bingbing Xu +3

Recent Omni-multimodal Large Language Models show promise in unified audio, vision, and text modeling. However, streaming audio-video understanding remains challenging, as existing…

cs.CL2026

JudgeAgent: Beyond Static Benchmarks for Knowledge-Driven and Dynamic LLM Evaluation

Zhichao Shi, Xuhui Jiang, Chengjin Xu +6

Current evaluation methods for large language models (LLMs) primarily rely on static benchmarks, presenting two major challenges: limited knowledge coverage and fixed difficulties…

cs.CL2026

Learning from Mistakes: Negative Reasoning Samples Enhance Out-of-Domain Generalization

Xueyun Tian, Minghua Ma, Bingbing Xu +6

Supervised fine-tuning (SFT) on chain-of-thought (CoT) trajectories demonstrations is a common approach for enabling reasoning in large language models. Standard practices typicall…

cs.CL2025

A Survey on LLM-as-a-Judge

Jiawei Gu, Xuhui Jiang, Zhichao Shi +13

Accurate and consistent evaluation is crucial for decision-making across numerous fields, yet it remains a challenging task due to inherent subjectivity, variability, and scale. La…