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Beitao Chen

3 accepted papers

2025

FlexAC: Towards Flexible Control of Associative Reasoning in Multimodal Large Language Models

NeurIPS 2025poster

Multimodal large language models (MLLMs) face an inherent trade-off between faithfulness and creativity, as different tasks require varying degrees of associative reasoning. However, existing methods lack the flexibility to modulate this reasoning strength, limiting MLLMs' adaptability across factua…

Cited by 0SourcecodeScholar
2025

SafePTR: Token-Level Jailbreak Defense in Multimodal LLMs via Prune-then-Restore Mechanism

NeurIPS 2025poster

By incorporating visual inputs, Multimodal Large Language Models (MLLMs) extend LLMs to support visual reasoning. However, this integration also introduces new vulnerabilities, making MLLMs susceptible to multimodal jailbreak attacks and hindering their safe deployment. Existing defense methods, inc…

Cited by 0SourceScholar
2024

Alleviating Hallucinations in Large Vision-Language Models through Hallucination-Induced Optimization

NeurIPS 2024poster

Although Large Visual Language Models (LVLMs) have demonstrated exceptional abilities in understanding multimodal data, they invariably suffer from hallucinations, leading to a disconnection between the generated text and the corresponding images. Almost all current visual contrastive decoding meth…