collaborators

8 papers

cs.CL2026

ParamMute: Suppressing Knowledge-Critical FFNs for Faithful Retrieval-Augmented Generation

Pengcheng Huang, Zhenghao Liu, Yukun Yan +8

Large language models (LLMs) integrated with retrieval-augmented generation (RAG) have improved factuality by grounding outputs in external evidence. However, they remain susceptib…

cs.CL2026

LC-QAT: Data-Efficient 2-Bit QAT for LLMs via Linear-Constrained Vector Quantization

Haoyu Wang, Xingyu Yu, Haiyan Zhao +2

Quantization-aware training (QAT) is essential for extremely low-bit large language models (LLMs). Current QAT methods are mainly based on scalar quantization (SQ), which enables e…

cs.CL2026

UniSVQ: 2-bit Unified Scalar-Vector Quantization

Haoyu Wang, Haiyan Zhao, Xingyu Yu +4

Post-training quantization at the 2-bit level enables low-cost deployment and inference acceleration for large language models (LLMs). Scalar quantization (SQ) and vector quantizat…

cs.CL2026

SAEExplainer: Interpreting SAE Features with Activation-Guided Preference Optimization

Jingyi He, Haiyan Zhao, Ruxue Shi +4

Although Sparse Autoencoders (SAEs) have mitigated the opacity of large language models (LLMs) by decomposing dense representations into sparse features, explaining these features…

cs.CL2026

Universal Activation Verbalizer: A Unified Framework for Cross-Model Activation Explanation

Haiyan Zhao, Zirui He, Guanchu Wang +3

Activation verbalization explains hidden representations in natural language, but existing methods are mostly limited to self-explanation, where each model explains only its own ac…

cs.LG2026

GAMMA: Global Bit Allocation for Mixed-Precision Models under Arbitrary Budgets

Zhangyang Yao, Haiyan Zhao, Haoyu Wang +3

Mixed-precision quantization improves the budget--accuracy trade-off for large language models (LLMs) by allocating more bits to sensitive modules. However, automating this allocat…