TPC: Cross-Temporal Prediction Connection for Vision-Language Model Hallucination Reduction

• URL: http://arxiv.org/abs/2503.04457v1
• Date: Thu, 06 Mar 2025 14:11:00 GMT
• Title: TPC: Cross-Temporal Prediction Connection for Vision-Language Model Hallucination Reduction
• Authors: Chao Wang, Weiwei Fu, Yang Zhou,
• Abstract summary: Vision-language models (VLMs) have achieved remarkable advancements, capitalizing on the impressive capabilities of large language models (LLMs)<n>Despite this, a critical challenge known as hallucination occurs when models overconfidently describe objects or attributes absent from the image.<n>This limitation reduces model reliability in high-stakes applications.
• Score: 5.925383490825323
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Vision-language models (VLMs) have achieved remarkable advancements, capitalizing on the impressive capabilities of large language models (LLMs) across diverse tasks. Despite this, a critical challenge known as hallucination occurs when models overconfidently describe objects or attributes absent from the image, a problem exacerbated by the tendency of VLMs to rely on linguistic priors. This limitation reduces model reliability in high-stakes applications. In this work, we have observed the characteristic of logits' continuity consistency enhancement and introduced a straightforward and efficient method, Cross-Temporal Prediction Connection (TPC), designed to enhance the semantic consistency of logits by connecting them temporally across timesteps. TPC amplifies information flow and improves coherence, effectively reducing hallucination. Extensive experiments show that TPC surpasses existing representatives, delivering superior performance in both accuracy and efficiency while maintaining robustness in open-ended text generation tasks.

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