Negative Sample is Negative in Its Own Way: Tailoring Negative Sentences for Image-Text Retrieval

• URL: http://arxiv.org/abs/2111.03349v1
• Date: Fri, 5 Nov 2021 09:36:41 GMT
• Title: Negative Sample is Negative in Its Own Way: Tailoring Negative Sentences for Image-Text Retrieval
• Authors: Zhihao Fan, Zhongyu Wei, Zejun Li, Siyuan Wang, Jianqing Fan
• Abstract summary: We propose our TAiloring neGative Sentences with Discrimination and Correction (TAGS-DC) to generate synthetic sentences automatically as negative samples. To keep the difficulty during training, we mutually improve the retrieval and generation through parameter sharing. In experiments, we verify the effectiveness of our model on MS-COCO and Flickr30K compared with current state-of-the-art models.
• Score: 19.161248757493386
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Matching model is essential for Image-Text Retrieval framework. Existing research usually train the model with a triplet loss and explore various strategy to retrieve hard negative sentences in the dataset. We argue that current retrieval-based negative sample construction approach is limited in the scale of the dataset thus fail to identify negative sample of high difficulty for every image. We propose our TAiloring neGative Sentences with Discrimination and Correction (TAGS-DC) to generate synthetic sentences automatically as negative samples. TAGS-DC is composed of masking and refilling to generate synthetic negative sentences with higher difficulty. To keep the difficulty during training, we mutually improve the retrieval and generation through parameter sharing. To further utilize fine-grained semantic of mismatch in the negative sentence, we propose two auxiliary tasks, namely word discrimination and word correction to improve the training. In experiments, we verify the effectiveness of our model on MS-COCO and Flickr30K compared with current state-of-the-art models and demonstrates its robustness and faithfulness in the further analysis. Our code is available in https://github.com/LibertFan/TAGS.

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