collaborators

7 papers

cs.CL2026

Forgotten in Weights, Recovered by Tools: Agentic Tool Unlearning for LLM Agents

Baicheng Chen, Zheyuan Liu, Jingyu Zhang +4

Large language models (LLMs) are increasingly deployed as tool-augmented agents, where responses can depend on tool calls and external observations rather than model parameters alo…

cs.LG2026

Controllable Molecular Generative Foundation Models

Yihan Zhu, Yuhan Liu, Weijiang Li +2

Despite the success of foundation models in language and vision, molecular graph generation still lacks a unified framework for heterogeneous design tasks with reliable controllabi…

cs.GR2026

3DEditSafe: Defending 3D Editing Pipelines from Unsafe Generation

Nicole Meng, Zheyuan Liu, Meng Jiang +1

Recent advances in 3D generative editing, particularly pipelines based on 3D Gaussian Splatting (3DGS), have achieved high-fidelity, multi-view-consistent scene manipulation from t…

cs.CL2026

Prompt-Activation Duality: Improving Activation Steering via Attention-Level Interventions

Diancheng Kang, Zheyuan Liu, Ningshan Ma +3

Activation steering controls language model behavior by adding directions to internal representations at inference time, but standard residual-stream steering can fail in stateful…

cs.CL2026

Dual-Space Smoothness for Robust and Balanced LLM Unlearning

Han Yan, Zheyuan Liu, Meng Jiang

As large language models evolve, Machine Unlearning has emerged to address growing concerns around user privacy, copyright infringement, and overall safety. Yet state-of-the-art (S…

cs.CV2025

Incorporating Rather Than Eliminating: Achieving Fairness for Skin Disease Diagnosis Through Group-Specific Expert

Gelei Xu, Yuying Duan, Zheyuan Liu +5

AI-based systems have achieved high accuracy in skin disease diagnostics but often exhibit biases across demographic groups, leading to inequitable healthcare outcomes and diminish…