Graph-Based Nearest-Neighbor Search without the Spread

Fuente: arXiv
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Hauptverfasser: Giliberti, Jeff, Har-Peled, Sariel, Sauer, Jonas, Vakilian, Ali
Format: Preprint
Veröffentlicht: 2026
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author Giliberti, Jeff
Har-Peled, Sariel
Sauer, Jonas
Vakilian, Ali
author_facet Giliberti, Jeff
Har-Peled, Sariel
Sauer, Jonas
Vakilian, Ali
contents $\renewcommand{\Re}{\mathbb{R}}$Recent work showed how to construct nearest-neighbor graphs of linear size, on a given set $P$ of $n$ points in $\Re^d$, such that one can answer approximate nearest-neighbor queries in logarithmic time in the spread. Unfortunately, the spread might be unbounded in $n$, and an interesting theoretical question is how to remove the dependency on the spread. Here, we show how to construct an external linear-size data structure that, combined with the linear-size graph, allows us to answer ANN queries in logarithmic time in $n$.
format Preprint
id arxiv_https___arxiv_org_abs_2602_06633
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Graph-Based Nearest-Neighbor Search without the Spread
Giliberti, Jeff
Har-Peled, Sariel
Sauer, Jonas
Vakilian, Ali
Computational Geometry
Data Structures and Algorithms
Machine Learning
$\renewcommand{\Re}{\mathbb{R}}$Recent work showed how to construct nearest-neighbor graphs of linear size, on a given set $P$ of $n$ points in $\Re^d$, such that one can answer approximate nearest-neighbor queries in logarithmic time in the spread. Unfortunately, the spread might be unbounded in $n$, and an interesting theoretical question is how to remove the dependency on the spread. Here, we show how to construct an external linear-size data structure that, combined with the linear-size graph, allows us to answer ANN queries in logarithmic time in $n$.
title Graph-Based Nearest-Neighbor Search without the Spread
topic Computational Geometry
Data Structures and Algorithms
Machine Learning
url https://arxiv.org/abs/2602.06633