Enhancing Multimodal Entity Linking with Jaccard Distance-based Conditional Contrastive Learning and Contextual Visual Augmentation

• URL: http://arxiv.org/abs/2501.14166v1
• Date: Fri, 24 Jan 2025 01:35:10 GMT
• Title: Enhancing Multimodal Entity Linking with Jaccard Distance-based Conditional Contrastive Learning and Contextual Visual Augmentation
• Authors: Cong-Duy Nguyen, Xiaobao Wu, Thong Nguyen, Shuai Zhao, Khoi Le, Viet-Anh Nguyen, Feng Yichao, Anh Tuan Luu,
• Abstract summary: We propose JD-CCL (Jaccard Distance-based Contrastive Learning), a novel approach to enhance the ability to match multimodal entity linking models.<n>To address the limitations caused by the variations within the visual modality among mentions and entities, we introduce a novel method, CVaCPT (Con Visual-aid Controllable Patch Transform)
• Score: 37.22528391940295
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Previous research on multimodal entity linking (MEL) has primarily employed contrastive learning as the primary objective. However, using the rest of the batch as negative samples without careful consideration, these studies risk leveraging easy features and potentially overlook essential details that make entities unique. In this work, we propose JD-CCL (Jaccard Distance-based Conditional Contrastive Learning), a novel approach designed to enhance the ability to match multimodal entity linking models. JD-CCL leverages meta-information to select negative samples with similar attributes, making the linking task more challenging and robust. Additionally, to address the limitations caused by the variations within the visual modality among mentions and entities, we introduce a novel method, CVaCPT (Contextual Visual-aid Controllable Patch Transform). It enhances visual representations by incorporating multi-view synthetic images and contextual textual representations to scale and shift patch representations. Experimental results on benchmark MEL datasets demonstrate the strong effectiveness of our approach.

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