Enhancing prototypical few-shot learning by leveraging the local-level strategy
ICASSP 2022-2022 IEEE International Conference on Acoustics …, 2022•ieeexplore.ieee.org
Aiming at recognizing the samples from novel categories with few reference samples, few-
shot learning (FSL) is a challenging problem. We found that the existing works often build
their few-shot model based on the image-level feature by mixing all local-level features,
which leads to the discriminative location bias and information loss in local details. To tackle
the problem, this paper returns the perspective to the local-level feature and proposes a
series of local-level strategies. Specifically, we present (a) a local-agnostic training strategy …
shot learning (FSL) is a challenging problem. We found that the existing works often build
their few-shot model based on the image-level feature by mixing all local-level features,
which leads to the discriminative location bias and information loss in local details. To tackle
the problem, this paper returns the perspective to the local-level feature and proposes a
series of local-level strategies. Specifically, we present (a) a local-agnostic training strategy …
Aiming at recognizing the samples from novel categories with few reference samples, few-shot learning (FSL) is a challenging problem. We found that the existing works often build their few-shot model based on the image-level feature by mixing all local-level features, which leads to the discriminative location bias and information loss in local details. To tackle the problem, this paper returns the perspective to the local-level feature and proposes a series of local-level strategies. Specifically, we present (a) a local-agnostic training strategy to avoid the discriminative location bias between the base and novel categories, (b) a novel local-level similarity measure to capture the accurate comparison between local-level features, and (c) a local-level knowledge transfer that can synthesize different knowledge transfers from the base category according to different location features. Extensive experiments justify that our proposed local-level strategies can significantly boost the performance and achieve 2.8%–7.2% improvements over the baseline across different benchmark datasets, which also achieves the state-of-the-art accuracy.
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