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arXiv 2007.06390cs.CLcs.IRcs.LG
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多模态新闻检索的特征分析

A Feature Analysis for Multimodal News Retrieval

TIB–Leibniz Information Centre for Science and Technology(TIB-莱布尼茨科学技术信息中心);L3S Research Center, Leibniz University Hannover(汉诺威莱布尼茨大学L3S研究中心)

Golsa Tahmasebzadeh, Sherzod Hakimov, Eric Müller-Budack, Ralph Ewerth

摘要:

基于内容的信息检索基于文档中包含的信息,而不是使用关键字等元数据。大多数信息检索方法都是基于文本或图像的。在本文中,我们调查的有用性多模态功能的跨语言新闻搜索在各个领域:政治,健康,环境,体育和金融。为此,我们考虑五个特征类型的图像和文本,并比较使用不同的组合的检索系统的性能。实验结果表明,同时考虑视觉和文本信息可以提高检索结果。此外,据观察,在文本特征实体重叠优于词嵌入,而地理位置嵌入实现更好的性能之间的视觉特征在检索任务。

英文摘要:

Content-based information retrieval is based on the information contained in documents rather than using metadata such as keywords. Most information retrieval methods are either based on text or image. In this paper, we investigate the usefulness of multimodal features for cross-lingual news search in various domains: politics, health, environment, sport, and finance. To this end, we consider five feature types for image and text and compare the performance of the retrieval system using different combinations. Experimental results show that retrieval results can be improved when considering both visual and textual information. In addition, it is observed that among textual features entity overlap outperforms word embeddings, while geolocation embeddings achieve better performance among visual features in the retrieval task.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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