跨模态时刻定位的语义协同学习

IF 5.4 2区 计算机科学 Q1 COMPUTER SCIENCE, INFORMATION SYSTEMS
Yupeng Hu, Kun Wang, Meng Liu, Haoyu Tang, Liqiang Nie
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引用次数: 0

摘要

通过给定的自然语言查询在未修剪的视频中定位所需的时刻,即跨模态时刻定位,最近引起了广泛的研究关注。然而,这是一项具有挑战性的任务,因为它不仅需要准确地理解模态内的语义信息,还需要显式地捕获模态间的语义相关性(一致性和互补性)。现有的研究主要集中在模态内的语义理解和模态间的语义对齐,而忽略了必要的语义补充。因此,我们提出了一个跨模态语义感知网络,以实现更有效的模态内语义理解和模态间语义协作。具体而言,我们设计了一个双路径表示网络用于模态内语义建模。同时,我们开发了一个语义协同网络,实现了多粒度语义对齐和分层语义补充。因此,在充分的语义协同学习的基础上,可以实现有效的矩定位。大量的对比实验表明,与现有的最先进的竞争对手相比,我们的模型具有良好的性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Semantic Collaborative Learning for Cross-Modal Moment Localization
Localizing a desired moment within an untrimmed video via a given natural language query, i.e., cross-modal moment localization, has attracted widespread research attention recently. However, it is a challenging task because it requires not only accurately understanding intra-modal semantic information, but also explicitly capturing inter-modal semantic correlations (consistency and complementarity). Existing efforts mainly focus on intra-modal semantic understanding and inter-modal semantic alignment, while ignoring necessary semantic supplement. Consequently, we present a cross-modal semantic perception network for more effective intra-modal semantic understanding and inter-modal semantic collaboration. Concretely, we design a dual-path representation network for intra-modal semantic modeling. Meanwhile, we develop a semantic collaborative network to achieve multi-granularity semantic alignment and hierarchical semantic supplement. Thereby, effective moment localization can be achieved based on sufficient semantic collaborative learning. Extensive comparison experiments demonstrate the promising performance of our model compared with existing state-of-the-art competitors.
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来源期刊
ACM Transactions on Information Systems
ACM Transactions on Information Systems 工程技术-计算机:信息系统
CiteScore
9.40
自引率
14.30%
发文量
165
审稿时长
>12 weeks
期刊介绍: The ACM Transactions on Information Systems (TOIS) publishes papers on information retrieval (such as search engines, recommender systems) that contain: new principled information retrieval models or algorithms with sound empirical validation; observational, experimental and/or theoretical studies yielding new insights into information retrieval or information seeking; accounts of applications of existing information retrieval techniques that shed light on the strengths and weaknesses of the techniques; formalization of new information retrieval or information seeking tasks and of methods for evaluating the performance on those tasks; development of content (text, image, speech, video, etc) analysis methods to support information retrieval and information seeking; development of computational models of user information preferences and interaction behaviors; creation and analysis of evaluation methodologies for information retrieval and information seeking; or surveys of existing work that propose a significant synthesis. The information retrieval scope of ACM Transactions on Information Systems (TOIS) appeals to industry practitioners for its wealth of creative ideas, and to academic researchers for its descriptions of their colleagues'' work.
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