Learning empirical Bregman divergence for uncertain distance representation
2023 26th International Conference on Information Fusion (FUSION), 2023•ieeexplore.ieee.org
Deep metric learning techniques have been used for visual representation in various
supervised and unsupervised learning tasks through learning embeddings of samples with
deep networks. However, classic approaches, which employ a fixed distance metric as a
similarity function between two embeddings, may lead to suboptimal performance for
capturing the complex data distribution. The Bregman divergence generalizes measures of
various distance metrics and arises throughout many fields of deep metric learning. In this …
supervised and unsupervised learning tasks through learning embeddings of samples with
deep networks. However, classic approaches, which employ a fixed distance metric as a
similarity function between two embeddings, may lead to suboptimal performance for
capturing the complex data distribution. The Bregman divergence generalizes measures of
various distance metrics and arises throughout many fields of deep metric learning. In this …
Deep metric learning techniques have been used for visual representation in various supervised and unsupervised learning tasks through learning embeddings of samples with deep networks. However, classic approaches, which employ a fixed distance metric as a similarity function between two embeddings, may lead to suboptimal performance for capturing the complex data distribution. The Bregman divergence generalizes measures of various distance metrics and arises throughout many fields of deep metric learning. In this paper, we first show how deep metric learning loss can arise from the Bregman divergence. We then introduce a novel method for learning empirical Bregman divergence directly from data based on parameterizing the convex function underlying the Bregman divergence with a deep learning setting. We further experimentally show that our approach performs effectively on five popular public datasets compared to other SOTA deep metric learning methods, particularly for pattern recognition problems.
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