Disentangling Knowledge-based and Visual Reasoning by Question Decomposition in KB-VQA

• URL: http://arxiv.org/abs/2406.18839v1
• Date: Thu, 27 Jun 2024 02:19:38 GMT
• Title: Disentangling Knowledge-based and Visual Reasoning by Question Decomposition in KB-VQA
• Authors: Elham J. Barezi, Parisa Kordjamshidi,
• Abstract summary: We study the Knowledge-Based visual question-answering problem, for which given a question, the models need to ground it into the visual modality to find the answer. Our study shows that replacing a complex question with several simpler questions helps to extract more relevant information from the image.
• Score: 19.6585442152102
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We study the Knowledge-Based visual question-answering problem, for which given a question, the models need to ground it into the visual modality to find the answer. Although many recent works use question-dependent captioners to verbalize the given image and use Large Language Models to solve the VQA problem, the research results show they are not reasonably performing for multi-hop questions. Our study shows that replacing a complex question with several simpler questions helps to extract more relevant information from the image and provide a stronger comprehension of it. Moreover, we analyze the decomposed questions to find out the modality of the information that is required to answer them and use a captioner for the visual questions and LLMs as a general knowledge source for the non-visual KB-based questions. Our results demonstrate the positive impact of using simple questions before retrieving visual or non-visual information. We have provided results and analysis on three well-known VQA datasets including OKVQA, A-OKVQA, and KRVQA, and achieved up to 2% improvement in accuracy.

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