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BDAI重点实验室研究生沙龙第6期:Task-aware Discriminative Mutual Attention Network for Few-shot Learning
日期:2021-05-10访问量:

研究生沙龙第2期(1).png

汇报人:许宝贵(苏冰老师组

时间:5月12日

标题:Task-aware Discriminative Mutual Attention Network for Few-shot Learning

摘要:Many few-shot image classification methods focus on learning a fixed feature space from sufficient samples of seen classes that can be readily transferred to unseen classes. For different tasks, the feature space is either the same or only adjusted by generating attention to query samples. However, the discriminative channels and spatial parts for comparing different query and support images in different tasks are usually different. In this paper, we propose a task-aware discriminative mutual attention (TDMA) network to produce task-and-sample-specific features. For each task, TDMA first generates a discriminative task embedding that encodes the inter-class separability and within-class scatter by linear discriminate analysis, and then employs the task embedding to enhance discriminative channels for this task. Given a specific query, when compared with different support images, TDMA further incorporates the task embedding and long-range dependencies to locate the discriminative parts in the spatial dimension. Experimental results on miniImageNet, tieredImageNet, and CUB datasets show the effectiveness of the proposed model.

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