activity
20242026
collaborators

9 papers

cs.CL2026

AgentV-RL: Scaling Reward Modeling with Agentic Verifier

Jiazheng Zhang, Ziche Fu, Zhiheng Xi +13

Verifiers have been demonstrated to enhance LLM reasoning via test-time scaling (TTS). Yet, they face significant challenges in complex domains. Error propagation from incorrect in…

cs.CL2026

Make LoRA Great Again: Boosting LoRA with Adaptive Singular Values and Mixture-of-Experts Optimization Alignment

Chenghao Fan, Zhenyi Lu, Sichen Liu +4

While Low-Rank Adaptation (LoRA) enables parameter-efficient fine-tuning for Large Language Models (LLMs), its performance often falls short of Full Fine-Tuning (Full FT). Current…

cs.CL2026

Stable-DiffCoder: Pushing the Frontier of Code Diffusion Large Language Model

Chenghao Fan, Wen Heng, Bo Li +6

Diffusion-based language models (DLLMs) offer non-sequential, block-wise generation and richer data reuse compared to autoregressive (AR) models, but existing code DLLMs still lag…

cs.CL2025

Selecting and Merging: Towards Adaptable and Scalable Named Entity Recognition with Large Language Models

Zhuojun Ding, Wei Wei, Chenghao Fan

Supervised fine-tuning (SFT) is widely used to align large language models (LLMs) with information extraction (IE) tasks, such as named entity recognition (NER). However, annotatin…

cs.CL2025

Chinese-Vicuna: A Chinese Instruction-following Llama-based Model

Chenghao Fan, Zhenyi Lu, Jie Tian

Chinese-Vicuna is an open-source, resource-efficient language model designed to bridge the gap in Chinese instruction-following capabilities by fine-tuning Meta's LLaMA architectur…

cs.CL2024

On Giant's Shoulders: Effortless Weak to Strong by Dynamic Logits Fusion

Chenghao Fan, Zhenyi Lu, Wei Wei +4

Efficient fine-tuning of large language models for task-specific applications is imperative, yet the vast number of parameters in these models makes their training increasingly cha…