GRAPHGPT-O: Synergistic Multimodal Comprehension and Generation on Graphs

• URL: http://arxiv.org/abs/2502.11925v2
• Date: Sat, 08 Mar 2025 02:59:52 GMT
• Title: GRAPHGPT-O: Synergistic Multimodal Comprehension and Generation on Graphs
• Authors: Yi Fang, Bowen Jin, Jiacheng Shen, Sirui Ding, Qiaoyu Tan, Jiawei Han,
• Abstract summary: Texts and images are usually interconnected, forming a multimodal attributed graph (MMAG)<n>It is underexplored how MLLMs can incorporate the relational information (textiti.e., graph structure) and semantic information (textiti.e. texts and images) on such graphs for multimodal comprehension and generation.<n>We propose GraphGPT-o, which supports omni-multimodal understanding and creation on MMAGs.
• Score: 34.076036577516895
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: The rapid development of Multimodal Large Language Models (MLLMs) has enabled the integration of multiple modalities, including texts and images, within the large language model (LLM) framework. However, texts and images are usually interconnected, forming a multimodal attributed graph (MMAG). It is underexplored how MLLMs can incorporate the relational information (\textit{i.e.}, graph structure) and semantic information (\textit{i.e.,} texts and images) on such graphs for multimodal comprehension and generation. In this paper, we propose GraphGPT-o, which supports omni-multimodal understanding and creation on MMAGs. We first comprehensively study linearization variants to transform semantic and structural information as input for MLLMs. Then, we propose a hierarchical aligner that enables deep graph encoding, bridging the gap between MMAGs and MLLMs. Finally, we explore the inference choices, adapting MLLM to interleaved text and image generation in graph scenarios. Extensive experiments on three datasets from different domains demonstrate the effectiveness of our proposed method. Datasets and codes will be open-sourced upon acceptance.

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