TExplain: Explaining Learned Visual Features via Pre-trained (Frozen) Language Models

• URL: http://arxiv.org/abs/2309.00733v4
• Date: Thu, 2 May 2024 03:28:00 GMT
• Title: TExplain: Explaining Learned Visual Features via Pre-trained (Frozen) Language Models
• Authors: Saeid Asgari Taghanaki, Aliasghar Khani, Ali Saheb Pasand, Amir Khasahmadi, Aditya Sanghi, Karl D. D. Willis, Ali Mahdavi-Amiri,
• Abstract summary: We propose a novel method that leverages the capabilities of language models to interpret the learned features of pre-trained image classifiers. Our approach generates a vast number of sentences to explain the features learned by the classifier for a given image. Our method, for the first time, utilizes these frequent words corresponding to a visual representation to provide insights into the decision-making process.
• Score: 14.019349267520541
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Interpreting the learned features of vision models has posed a longstanding challenge in the field of machine learning. To address this issue, we propose a novel method that leverages the capabilities of language models to interpret the learned features of pre-trained image classifiers. Our method, called TExplain, tackles this task by training a neural network to establish a connection between the feature space of image classifiers and language models. Then, during inference, our approach generates a vast number of sentences to explain the features learned by the classifier for a given image. These sentences are then used to extract the most frequent words, providing a comprehensive understanding of the learned features and patterns within the classifier. Our method, for the first time, utilizes these frequent words corresponding to a visual representation to provide insights into the decision-making process of the independently trained classifier, enabling the detection of spurious correlations, biases, and a deeper comprehension of its behavior. To validate the effectiveness of our approach, we conduct experiments on diverse datasets, including ImageNet-9L and Waterbirds. The results demonstrate the potential of our method to enhance the interpretability and robustness of image classifiers.

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