Exploiting Multimodality in Video Hyperlinking to Improve Target Diversity

Abstract : Video hyperlinking is the process of creating links within a collection of videos to help navigation and information seeking. Starting from a given set of video segments, called anchors, a set of related segments, called targets, must be provided. In past years, a number of content-based approaches have been proposed with good results obtained by searching for target segments that are very similar to the anchor in terms of content and information. Unfortunately, relevance has been obtained to the expense of diversity. In this paper, we study multimodal approaches and their ability to provide a set of diverse yet relevant targets. We compare two recently introduced cross-modal approaches, namely, deep auto-encoders and bimodal LDA, and experimentally show that both provide significantly more diverse targets than a state-of-the-art baseline. Bimodal autoencoders offer the best trade-off between relevance and diversity, with bimodal LDA exhibiting slightly more diverse targets at a lower precision.
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Communication dans un congrès
Laurent Amsaleg; Guðmundsson Gylfi Þór; Cathal Gurrin ; Shin’ichi Satoh MMM2017 - International Conference on Multimedia Modeling, Jan 2017, Reykyavik, Iceland. Springer, 10133, 2017, Lecture Notes in Computer Science. <10.1007/978-3-319-51814-5_16>
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https://hal.archives-ouvertes.fr/hal-01498130
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Soumis le : mercredi 29 mars 2017 - 16:09:40
Dernière modification le : jeudi 15 juin 2017 - 09:08:52

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Rémi Bois, Vedran Vukotic, Anca-Roxana Simon, Ronan Sicre, Christian Raymond, et al.. Exploiting Multimodality in Video Hyperlinking to Improve Target Diversity. Laurent Amsaleg; Guðmundsson Gylfi Þór; Cathal Gurrin ; Shin’ichi Satoh MMM2017 - International Conference on Multimedia Modeling, Jan 2017, Reykyavik, Iceland. Springer, 10133, 2017, Lecture Notes in Computer Science. <10.1007/978-3-319-51814-5_16>. <hal-01498130>

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