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Compressive Mahalanobis Metric Learning Adapts to Intrinsic Dimension
April 16, 2024, 4:44 a.m. | Efstratios Palias, Ata Kab\'an
cs.LG updates on arXiv.org arxiv.org
Abstract: Metric learning aims at finding a suitable distance metric over the input space, to improve the performance of distance-based learning algorithms. In high-dimensional settings, it can also serve as dimensionality reduction by imposing a low-rank restriction to the learnt metric. In this paper, we consider the problem of learning a Mahalanobis metric, and instead of training a low-rank metric on high-dimensional data, we use a randomly compressed version of the data to train a full-rank …
abstract algorithms arxiv cs.lg dimensionality intrinsic low paper performance serve space stat.ml type
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