WikiDiverse: A Multimodal Entity Linking Dataset with Diversified Contextual Topics and Entity Types

TL;DR

WikiDiverse is a new, high-quality multimodal entity linking dataset with diverse topics and entity types, enabling better research and model development in multimodal applications.

Contribution

The paper introduces WikiDiverse, a novel dataset with diversified contexts and entity types, and proposes MEL models that effectively utilize visual information.

Findings

The dataset covers a wide range of topics and entity types.

Models with intra- and inter-modality attention outperform existing approaches.

Extensive experiments highlight the importance of visual information in MEL.

Abstract

Multimodal Entity Linking (MEL) which aims at linking mentions with multimodal contexts to the referent entities from a knowledge base (e.g., Wikipedia), is an essential task for many multimodal applications. Although much attention has been paid to MEL, the shortcomings of existing MEL datasets including limited contextual topics and entity types, simplified mention ambiguity, and restricted availability, have caused great obstacles to the research and application of MEL. In this paper, we present WikiDiverse, a high-quality human-annotated MEL dataset with diversified contextual topics and entity types from Wikinews, which uses Wikipedia as the corresponding knowledge base. A well-tailored annotation procedure is adopted to ensure the quality of the dataset. Based on WikiDiverse, a sequence of well-designed MEL models with intra-modality and inter-modality attentions are implemented, which utilize the visual information of images more adequately than existing MEL models do. Extensive experimental analyses are conducted to investigate the contributions of different modalities in terms of MEL, facilitating the future research on this task. The dataset and baseline models are available at https://github.com/wangxw5/wikiDiverse.