Guided Deep Metric Learning

• URL: http://arxiv.org/abs/2206.02029v1
• Date: Sat, 4 Jun 2022 17:34:11 GMT
• Title: Guided Deep Metric Learning
• Authors: Jorge Gonzalez-Zapata, Ivan Reyes-Amezcua, Daniel Flores-Araiza, Mauricio Mendez-Ruiz, Gilberto Ochoa-Ruiz and Andres Mendez-Vazquez
• Abstract summary: We propose a novel approach to DML that we call Guided Deep Metric Learning. The proposed method is capable of a better manifold generalization and representation to up to 40% improvement.
• Score: 0.9786690381850356
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Deep Metric Learning (DML) methods have been proven relevant for visual similarity learning. However, they sometimes lack generalization properties because they are trained often using an inappropriate sample selection strategy or due to the difficulty of the dataset caused by a distributional shift in the data. These represent a significant drawback when attempting to learn the underlying data manifold. Therefore, there is a pressing need to develop better ways of obtaining generalization and representation of the underlying manifold. In this paper, we propose a novel approach to DML that we call Guided Deep Metric Learning, a novel architecture oriented to learning more compact clusters, improving generalization under distributional shifts in DML. This novel architecture consists of two independent models: A multi-branch master model, inspired from a Few-Shot Learning (FSL) perspective, generates a reduced hypothesis space based on prior knowledge from labeled data, which guides or regularizes the decision boundary of a student model during training under an offline knowledge distillation scheme. Experiments have shown that the proposed method is capable of a better manifold generalization and representation to up to 40% improvement (Recall@1, CIFAR10), using guidelines suggested by Musgrave et al. to perform a more fair and realistic comparison, which is currently absent in the literature

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