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Summary of Investigating and Mitigating Object Hallucinations in Pretrained Vision-language (clip) Models, by Yufang Liu et al.


Investigating and Mitigating Object Hallucinations in Pretrained Vision-Language (CLIP) Models

by Yufang Liu, Tao Ji, Changzhi Sun, Yuanbin Wu, Aimin Zhou

First submitted to arxiv on: 4 Oct 2024

Categories

  • Main: Computer Vision and Pattern Recognition (cs.CV)
  • Secondary: Artificial Intelligence (cs.AI)

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GrooveSquid.com Paper Summaries

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Summary difficulty Written by Summary
High Paper authors High Difficulty Summary
Read the original abstract here
Medium GrooveSquid.com (original content) Medium Difficulty Summary
This paper investigates object hallucinations within Large Vision-Language Models (LVLMs), specifically the CLIP model, which is widely used for vision-language applications. The researchers reveal that even isolated from language modalities, the CLIP model exhibits object hallucinations, suggesting a broader issue. To mitigate this problem, they propose a counterfactual data augmentation method to generate negative samples with various hallucination issues. This approach effectively reduces object hallucinations in the CLIP model and enables it to be used as a visual encoder for LVLMs.
Low GrooveSquid.com (original content) Low Difficulty Summary
Object hallucinations are a serious issue with large vision-language models, but where do they come from? Researchers looked into this problem specifically with the popular CLIP model. They found that even when language isn’t involved, the CLIP model still makes mistakes and imagines things that aren’t there! To fix this, they came up with a new way to add fake data to training that helps reduce these hallucinations. This can make the model better at its job of understanding images.

Keywords

» Artificial intelligence  » Data augmentation  » Encoder  » Hallucination