Results 51 to 60 of about 70,489 (181)

Quantization to speedup approximate nearest neighbor search

open access: yesNeural Computing and Applications, 2023
AbstractThe quantization-based approaches not only are the effective methods for solving the problems of approximate nearest neighbor search, but also effectively reduce storage space. However, many quantization-based approaches usually employ fixed nprobes to the search process for each query. This will lead to extra query consumption.
openaire   +1 more source

LoSI: Large Scale Location Inference Through FM Signal Integration and Estimation

open access: yesBig Data Mining and Analytics, 2019
In this paper we present a large scale, passive positioning system that can be used for approximate localization in Global Positioning System (GPS) denied/spoofed environments.
Tathagata Mukherjee   +5 more
doaj   +1 more source

A Semantic-Preserving Deep Hashing Model for Multi-Label Remote Sensing Image Retrieval

open access: yesRemote Sensing, 2021
Conventional remote sensing image retrieval (RSIR) systems perform single-label retrieval with a single label to represent the most dominant semantic content for an image.
Qimin Cheng   +5 more
doaj   +1 more source

Fast Adaptive Approximate Nearest Neighbor Search with Cluster-Shaped Indices

open access: yesBig Data and Cognitive Computing
In this study, we propose a novel adaptive algorithm for approximate nearest neighbor (ANN) search, based on the inverted file (IVF) index (cluster-based index) and online query complexity classification.
Vladimir Kazakovtsev   +8 more
doaj   +1 more source

Efficient Configuration Space Construction and Optimization for Motion Planning

open access: yesEngineering, 2015
The configuration space is a fundamental concept that is widely used in algorithmic robotics. Many applications in robotics, computer-aided design, and related areas can be reduced to computational problems in terms of configuration spaces. In this paper,
Jia Pan, Dinesh Manocha
doaj   +1 more source

Fast Construction of Nets in Low Dimensional Metrics, and Their Applications

open access: yes, 2005
We present a near linear time algorithm for constructing hierarchical nets in finite metric spaces with constant doubling dimension. This data-structure is then applied to obtain improved algorithms for the following problems: Approximate nearest ...
Har-Peled, Sariel, Mendel, Manor
core   +4 more sources

Approximate nearest neighbor search by cyclic hierarchical product quantization

open access: yesSignal, Image and Video Processing, 2023
Abstract Vector quantization (VQ) is a widely used Approximate Nearest Neighbor (ANN) search method. By constructing multiple codebooks, VQ can create more codeword vectors with lower memory consumption, enabling the indexing of large-scale database. In recent years, many VQ-based methods have been proposed, but the codeword vectors constructed
Zhi Xu   +4 more
openaire   +1 more source

Population-Based Algorithm for Solving the Traveling Salesman Problem

open access: yesСовременные информационные технологии и IT-образование, 2021
This article covers the population-based hybrid algorithm for solving the traveling salesman problem. The algorithm is built on two algorithms: the genetic algorithm and the particle swarm algorithm.
Elena Polupanova, Aleksey Polyakov
doaj   +1 more source

The Approximate k-List Problem

open access: yesIACR Transactions on Symmetric Cryptology, 2017
We study a generalization of the k-list problem, also known as the Generalized Birthday problem. In the k-list problem, one starts with k lists of binary vectors and has to find a set of vectors – one from each list – that sum to the all-zero target ...
Leif Both, Alexander May
doaj   +1 more source

Asymmetric Deep Supervised Hashing

open access: yes, 2017
Hashing has been widely used for large-scale approximate nearest neighbor search because of its storage and search efficiency. Recent work has found that deep supervised hashing can significantly outperform non-deep supervised hashing in many ...
Jiang, Qing-Yuan, Li, Wu-Jun
core   +1 more source

Home - About - Disclaimer - Privacy