TMTE: Effective Multimodal Graph Learning with Task-aware Modality and Topology Co-evolution
- URL: http://arxiv.org/abs/2603.27723v1
- Date: Sun, 29 Mar 2026 14:54:59 GMT
- Title: TMTE: Effective Multimodal Graph Learning with Task-aware Modality and Topology Co-evolution
- Abstract summary: Task-aware Modality and Topology co-Evolution (TMTE) is a novel MGL framework that jointly and iteratively optimize graph topology and multimodal representations toward the target task.<n>TMTE consistently achieves state-of-the-art performance across 6 graph-centric and modality-centric tasks.
- Score: 12.027339810975079
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Multimodal-attributed graphs (MAGs) are a fundamental data structure for multimodal graph learning (MGL), enabling both graph-centric and modality-centric tasks. However, our empirical analysis reveals inherent topology quality limitations in real-world MAGs, including noisy interactions, missing connections, and task-agnostic relational structures. A single graph derived from generic relationships is therefore unlikely to be universally optimal for diverse downstream tasks. To address this challenge, we propose Task-aware Modality and Topology co-Evolution (TMTE), a novel MGL framework that jointly and iteratively optimizes graph topology and multimodal representations toward the target task. TMTE is motivated by the bidirectional coupling between modality and topology: multimodal attributes induce relational structures, while graph topology shapes modality representations. Concretely, TMTE casts topology evolution as multi-perspective metric learning over modality embeddings with an anchor-based approximation, and formulates modality evolution as smoothness-regularized fusion with cross-modal alignment, yielding a closed-loop task-aware co-evolution process. Extensive experiments on 9 MAG datasets and 1 non-graph multimodal dataset across 6 graph-centric and modality-centric tasks show that TMTE consistently achieves state-of-the-art performance. Our code is available at https://anonymous.4open.science/r/TMTE-1873.
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