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Metric Learning from Limited Pairwise Preference Comparisons
March 29, 2024, 4:42 a.m. | Zhi Wang, Geelon So, Ramya Korlakai Vinayak
cs.LG updates on arXiv.org arxiv.org
Abstract: We study metric learning from preference comparisons under the ideal point model, in which a user prefers an item over another if it is closer to their latent ideal item. These items are embedded into $\mathbb{R}^d$ equipped with an unknown Mahalanobis distance shared across users. While recent work shows that it is possible to simultaneously recover the metric and ideal items given $\mathcal{O}(d)$ pairwise comparisons per user, in practice we often have a limited budget …
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