The Power of Recursive Embeddings for $\ell_p$ Metrics

Fuente: arXiv
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Main Authors: Krauthgamer, Robert, Petruschka, Nir, Sapir, Shay
Format: Preprint
Published: 2025
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author Krauthgamer, Robert
Petruschka, Nir
Sapir, Shay
author_facet Krauthgamer, Robert
Petruschka, Nir
Sapir, Shay
contents Metric embedding is a powerful tool used extensively in mathematics and computer science. We devise a new method of using metric embeddings recursively, which turns out to be particularly effective in $\ell_p$ spaces, $p>2$, yielding state-of-the-art results for Lipschitz decomposition, for Nearest Neighbor Search, and for embedding into $\ell_2$. In a nutshell, our method composes metric embeddings by viewing them as reductions between problems, and thereby obtains a new reduction that is substantially more effective than the known reduction that employs a single embedding. We in fact apply this method recursively, oftentimes using double recursion, which further amplifies the gap from a single embedding.
format Preprint
id arxiv_https___arxiv_org_abs_2503_18508
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle The Power of Recursive Embeddings for $\ell_p$ Metrics
Krauthgamer, Robert
Petruschka, Nir
Sapir, Shay
Computational Geometry
Data Structures and Algorithms
Metric Geometry
Metric embedding is a powerful tool used extensively in mathematics and computer science. We devise a new method of using metric embeddings recursively, which turns out to be particularly effective in $\ell_p$ spaces, $p>2$, yielding state-of-the-art results for Lipschitz decomposition, for Nearest Neighbor Search, and for embedding into $\ell_2$. In a nutshell, our method composes metric embeddings by viewing them as reductions between problems, and thereby obtains a new reduction that is substantially more effective than the known reduction that employs a single embedding. We in fact apply this method recursively, oftentimes using double recursion, which further amplifies the gap from a single embedding.
title The Power of Recursive Embeddings for $\ell_p$ Metrics
topic Computational Geometry
Data Structures and Algorithms
Metric Geometry
url https://arxiv.org/abs/2503.18508