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• W2796869301 abstract "We address the problem of text-based activity retrieval in video. Given a sentence describing an activity, our task is to retrieve matching clips from an untrimmed video. To capture the inherent structures present in both text and video, we introduce a multilevel model that integrates vision and language features earlier and more tightly than prior work. First, we inject text features early on when generating clip proposals, to help eliminate unlikely clips and thus speed up processing and boost performance. Second, to learn a fine-grained similarity metric for retrieval, we use visual features to modulate the processing of query sentences at the word level in a recurrent neural network. A multi-task loss is also employed by adding query re-generation as an auxiliary task. Our approach significantly outperforms prior work on two challenging benchmarks: Charades-STA and ActivityNet Captions." @default.
• W2796869301 created "2018-04-24" @default.
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• W2796869301 date "2018-04-13" @default.
• W2796869301 modified "2023-09-24" @default.
• W2796869301 title "Text-to-Clip Video Retrieval with Early Fusion and Re-Captioning." @default.
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• W2796869301 hasPublicationYear "2018" @default.
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