activity
20242026
collaborators

6 papers

cs.LG2026

Per-parameter Task Arithmetic for Unlearning in Large Language Models

Chengyi Cai, Zesheng Ye, Jiangchao Yao +5

In large language model (LLM) unlearning, private information is required to be removed. Task arithmetic unlearns by subtracting a specific task vector (TV)--defined as the paramet…

cs.LG2026

Visual-Guided Key-Token Regularization for Multimodal Large Language Model Unlearning

Chengyi Cai, Zesheng Ye, Peike Li +3

Unlearning in Multimodal Large Language Models (MLLMs) prevents the model from revealing private information when queried about target images. Existing MLLM unlearning methods larg…

cs.LG2025

Neural Network Reprogrammability: A Unified Theme on Model Reprogramming, Prompt Tuning, and Prompt Instruction

Zesheng Ye, Chengyi Cai, Ruijiang Dong +4

As large-scale pre-trained foundation models continue to expand in size and capability, efficiently adapting them to specific downstream tasks has become increasingly critical. Des…

cs.LG2025

Understanding Model Reprogramming for CLIP via Decoupling Visual Prompts

Chengyi Cai, Zesheng Ye, Lei Feng +2

Model reprogramming adapts pretrained models to downstream tasks by modifying only the input and output spaces. Visual reprogramming (VR) is one instance for vision tasks that adds…

cs.CV2025

Attribute-based Visual Reprogramming for Vision-Language Models

Chengyi Cai, Zesheng Ye, Lei Feng +2

Visual reprogramming (VR) reuses pre-trained vision models for downstream image classification tasks by adding trainable noise patterns to inputs. When applied to vision-language m…

cs.LG2024

Bayesian-guided Label Mapping for Visual Reprogramming

Chengyi Cai, Zesheng Ye, Lei Feng +2

Visual reprogramming (VR) leverages the intrinsic capabilities of pretrained vision models by adapting their input or output interfaces to solve downstream tasks whose labels (i.e.…