SNP-S3: Shared Network Pre-training and Significant Semantic Strengthening for Various Video-Text Tasks
| Autor: | Dong, Xingning, Guo, Qingpei, Gan, Tian, Wang, Qing, Wu, Jianlong, Ren, Xiangyuan, Cheng, Yuan, Chu, Wei |
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| Rok vydání: | 2024 |
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| Druh dokumentu: | Working Paper |
| DOI: | 10.1109/TCSVT.2023.3303945 |
| Popis: | We present a framework for learning cross-modal video representations by directly pre-training on raw data to facilitate various downstream video-text tasks. Our main contributions lie in the pre-training framework and proxy tasks. First, based on the shortcomings of two mainstream pixel-level pre-training architectures (limited applications or less efficient), we propose Shared Network Pre-training (SNP). By employing one shared BERT-type network to refine textual and cross-modal features simultaneously, SNP is lightweight and could support various downstream applications. Second, based on the intuition that people always pay attention to several "significant words" when understanding a sentence, we propose the Significant Semantic Strengthening (S3) strategy, which includes a novel masking and matching proxy task to promote the pre-training performance. Experiments conducted on three downstream video-text tasks and six datasets demonstrate that, we establish a new state-of-the-art in pixel-level video-text pre-training; we also achieve a satisfactory balance between the pre-training efficiency and the fine-tuning performance. The codebase are available at https://github.com/alipay/Ant-Multi-Modal-Framework/tree/main/prj/snps3_vtp. Comment: Accepted by TCSVT (IEEE Transactions on Circuits and Systems for Video Technology) |
| Databáze: | arXiv |
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