Multi-Modal Knowledge Graph Transformer Framework for Multi-Modal Entity Alignment

• URL: http://arxiv.org/abs/2310.06365v1
• Date: Tue, 10 Oct 2023 07:06:06 GMT
• Title: Multi-Modal Knowledge Graph Transformer Framework for Multi-Modal Entity Alignment
• Authors: Qian Li, Cheng Ji, Shu Guo, Zhaoji Liang, Lihong Wang, Jianxin Li
• Abstract summary: We propose a novel MMEA transformer, called MoAlign, that hierarchically introduces neighbor features, multi-modal attributes, and entity types. Taking advantage of the transformer's ability to better integrate multiple information, we design a hierarchical modifiable self-attention block in a transformer encoder. Our approach outperforms strong competitors and achieves excellent entity alignment performance.
• Score: 17.592908862768425
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Multi-Modal Entity Alignment (MMEA) is a critical task that aims to identify equivalent entity pairs across multi-modal knowledge graphs (MMKGs). However, this task faces challenges due to the presence of different types of information, including neighboring entities, multi-modal attributes, and entity types. Directly incorporating the above information (e.g., concatenation or attention) can lead to an unaligned information space. To address these challenges, we propose a novel MMEA transformer, called MoAlign, that hierarchically introduces neighbor features, multi-modal attributes, and entity types to enhance the alignment task. Taking advantage of the transformer's ability to better integrate multiple information, we design a hierarchical modifiable self-attention block in a transformer encoder to preserve the unique semantics of different information. Furthermore, we design two entity-type prefix injection methods to integrate entity-type information using type prefixes, which help to restrict the global information of entities not present in the MMKGs. Our extensive experiments on benchmark datasets demonstrate that our approach outperforms strong competitors and achieves excellent entity alignment performance.

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