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Locality-sensitive hashing (LSH) is an important tool for managing high-dimensional noisy or uncertain data, for example in connection with data cleaning (similarity join) and noise-robust search (similarity search). However, for a number…

数据结构与算法 · 计算机科学 2018-04-18 Martin Aumüller , Tobias Christiani , Rasmus Pagh , Francesco Silvestri

The problem of finding \emph{distance} between \emph{pattern} of length $m$ and \emph{text} of length $n$ is a typical way of generalizing pattern matching to incorporate dissimilarity score. For both Hamming and $L_1$ distances only a…

数据结构与算法 · 计算机科学 2018-05-04 Przemysław Uznański

Hashing is an efficient method for nearest neighbor search in large-scale data space by embedding high-dimensional feature descriptors into a similarity preserving Hamming space with a low dimension. However, large-scale high-speed…

计算机视觉与模式识别 · 计算机科学 2020-06-17 Chenggang Yan , Biao Gong , Yuxuan Wei , Yue Gao

We consider the problem of computing distance between a pattern of length $n$ and all $n$-length subwords of a text in the streaming model. In the streaming setting, only the Hamming distance ($L_0$) has been studied. It is known that…

数据结构与算法 · 计算机科学 2020-11-10 Tatiana Starikovskaya , Michal Svagerka , Przemysław Uznański

Consider the task of locating an unknown target point using approximate distance queries: in each round, a reconstructor selects a query point and receives a noisy version of its distance to the target. This problem arises naturally in…

机器学习 · 计算机科学 2025-11-11 Shay Moran , Elizaveta Nesterova

Hashing method maps similar data to binary hashcodes with smaller hamming distance, and it has received a broad attention due to its low storage cost and fast retrieval speed. However, the existing limitations make the present algorithms…

计算机视觉与模式识别 · 计算机科学 2016-09-29 Shifeng Zhang , Jianmin Li , Jinma Guo , Bo Zhang

Approximate Nearest Neighbor Search (ANNS) is a fundamental problem in many areas of machine learning and data mining. During the past decade, numerous hashing algorithms are proposed to solve this problem. Every proposed algorithm claims…

计算机视觉与模式识别 · 计算机科学 2019-06-20 Deng Cai

Privacy Preserving Data Mining(PPDM) is an ongoing research area aimed at bridging the gap between the collaborative data mining and data confidentiality There are many different approaches which have been adopted for PPDM, of them the rule…

数据库 · 计算机科学 2014-05-09 P. Cynthia Selvi , A. R. Mohammed Shanavas

A nearest-neighbor framework is a fundamental tool for various applications involving Large Language Models (LLMs) and Visual Language Models (VLMs). Vectors used for nearest-neighbor searches have richer information for similarity…

密码学与安全 · 计算机科学 2026-04-21 Shozo Saeki , Minoru Kawahara , Hirohisa Aman

Hashing methods have been widely used for efficient similarity retrieval on large scale image database. Traditional hashing methods learn hash functions to generate binary codes from hand-crafted features, which achieve limited accuracy…

计算机视觉与模式识别 · 计算机科学 2017-11-08 Jian Zhang , Yuxin Peng

Recently, supervised hashing methods have attracted much attention since they can optimize retrieval speed and storage cost while preserving semantic information. Because hashing codes learning is NP-hard, many methods resort to some form…

机器学习 · 计算机科学 2017-12-05 Zihao Hu , Xiyi Luo , Hongtao Lu , Yong Yu

Estimating the density of a distribution from its samples is a fundamental problem in statistics. Hypothesis selection addresses the setting where, in addition to a sample set, we are given $n$ candidate distributions -- referred to as…

数据结构与算法 · 计算机科学 2025-10-23 Maryam Aliakbarpour , Zhan Shi , Ria Stevens , Vincent X. Wang

Locality Sensitive Hashing (LSH) is an effective method of indexing a set of items to support efficient nearest neighbors queries in high-dimensional spaces. The basic idea of LSH is that similar items should produce hash collisions with…

数据结构与算法 · 计算机科学 2021-02-22 Haim Kaplan , Jay Tenenbaum

Real-world data typically contain repeated and periodic patterns. This suggests that they can be effectively represented and compressed using only a few coefficients of an appropriate basis (e.g., Fourier, Wavelets, etc.). However, distance…

机器学习 · 统计学 2014-05-26 Michail Vlachos , Nikolaos Freris , Anastasios Kyrillidis

An effective unsupervised hashing algorithm leads to compact binary codes preserving the neighborhood structure of data as much as possible. One of the most established schemes for unsupervised hashing is to reduce the dimensionality of…

计算机视觉与模式识别 · 计算机科学 2021-10-04 Sobhan Hemati , H. R. Tizhoosh

We present a new locality sensitive hashing (LSH) algorithm for $c$-approximate nearest neighbor search in $\ell_p$ with $1<p<2$. For a database of $n$ points in $\ell_p$, we achieve $O(dn^{\rho})$ query time and $O(dn+n^{1+\rho})$ space,…

数据结构与算法 · 计算机科学 2013-06-18 Huy L. Nguyen

Suppose that we have two similar files stored on different computers. We need to send the file from the first computer to the second one trying to minimize the number of bits transmitted. This article presents a survey of results known for…

信息论 · 计算机科学 2011-02-24 Aleksandr Chuklin

We prove conditional near-quadratic running time lower bounds for approximate Bichromatic Closest Pair with Euclidean, Manhattan, Hamming, or edit distance. Specifically, unless the Strong Exponential Time Hypothesis (SETH) is false, for…

计算复杂性 · 计算机科学 2018-03-05 Aviad Rubinstein

Large scale agglomerative clustering is hindered by computational burdens. We propose a novel scheme where exact inter-instance distance calculation is replaced by the Hamming distance between Kernelized Locality-Sensitive Hashing (KLSH)…

机器学习 · 计算机科学 2013-01-17 Boyi Xie , Shuheng Zheng

The problem of fast items retrieval from a fixed collection is often encountered in most computer science areas, from operating system components to databases and user interfaces. We present an approach based on hash tables that focuses on…

神经与进化计算 · 计算机科学 2020-07-17 Dan Domnita , Ciprian Oprisa