GoT-CQA: Graph-of-Thought Guided Compositional Reasoning for Chart Question Answering

• URL: http://arxiv.org/abs/2409.02611v1
• Date: Wed, 4 Sep 2024 10:56:05 GMT
• Title: GoT-CQA: Graph-of-Thought Guided Compositional Reasoning for Chart Question Answering
• Authors: Lingling Zhang, Muye Huang, QianYing Wang, Yaxian Wang, Wenjun Wu, Jun Liu,
• Abstract summary: Chart Question Answering (CQA) aims at answering questions based on the visual chart content. We propose a novel Graph-of-Thought (GoT) guided compositional reasoning model called GoT-CQA. GoT-CQA achieves outstanding performance, especially in complex human-written and reasoning questions.
• Score: 12.485921065840294
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Chart Question Answering (CQA) aims at answering questions based on the visual chart content, which plays an important role in chart sumarization, business data analysis, and data report generation. CQA is a challenging multi-modal task because of the strong context dependence and complex reasoning requirement. The former refers to answering this question strictly based on the analysis of the visual content or internal data of the given chart, while the latter emphasizes the various logical and numerical reasoning involved in answer prediction process. In this paper, we pay more attention on the complex reasoning in CQA task, and propose a novel Graph-of-Thought (GoT) guided compositional reasoning model called GoT-CQA to overcome this problem. At first, we transform the chart-oriented question into a directed acyclic GoT composed of multiple operator nodes, including localization, numerical and logical operator. It intuitively reflects the human brain's solution process to this question. After that, we design an efficient auto-compositional reasoning framework guided by the GoT, to excute the multi-step reasoning operations in various types of questions. Comprehensive experiments on ChartQA and PlotQA-D datasets show that GoT-CQA achieves outstanding performance, especially in complex human-written and reasoning questions, comparing with the latest popular baselines.

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