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Zhiguo Yang

5 accepted papers

2026

Jailbreaking Vision-Language Models via Dissonance-Guided Suffix Optimization and Image-Phrase Injection

CVPR 2026

The integration of vision and language in Vision-Language Models (VLMs), while enabling multimodal capabilities, inherently expands their attack surface. Among existing white-box jailbreak methods, suffix-optimization-based approaches often rely on gradient approximations over discrete token spaces,

Cited by 0SourcecodeScholar
2026

LSA: Layer-wise Sparsity Allocation for Large Language Model Pruning Based on Minimal Linear Reconstruction Error

ICLR 2026poster

Deploying large language models (LLMs) on platforms with insufficient computational resources remains a key challenge. Weight pruning is an efficient model compression technique that can reduce model size without retraining LLMs. However, due to the massive number of parameters, it is infeasible to…

Cited by 0SourcecodeScholar
2026

Logit-Margin Repulsion for Backdoor Defense

CVPR 2026

Backdoor attacks pose a significant threat to deep neural networks. Recent studies have shown that model compression, such as quantization and pruning, can be exploited by attackers to implant conditional backdoors. Such backdoors remain dormant in the original model but are activated after the mode

Cited by 0SourcecodeScholar
2026

Position: Generative Distributional Integrity against Backdoor Attacks

ICML 2026poster

Foundation models, such as Diffusion Models (DMs) and Large Language Models (LLMs), are now widely integrated into digital systems. This widespread use introduces a specific security risk: generative backdoors. Unlike traditional models where backdoors cause simple classification errors, generative …

Cited by 0SourceScholar
2026

Revisiting the Data Sampling in Multimodal Post-training from a Difficulty-Distinguish View

AAAI 2026technical

Recent advances in Multimodal Large Language Models (MLLMs) have spurred significant progress in Chain-of-Thought (CoT) reasoning. Building on the success of Deepseek-R1, researchers extended multimodal reasoning to post-training paradigms based on reinforcement learning (RL), focusing predominantly

Cited by 0SourcePDFScholar