Results 31 to 40 of about 70,489 (181)
Robust Underwater Localization Using Acoustic Image Alignment for Autonomous Intervention Systems
IEEE Access, 2022 Acoustic imaging sonar can be used as important navigation sensors for underwater intervention systems as they consistently provide spatial information about the surrounding environment, even in limited visibility conditions.
Jisung Park, Jinwhan Kim
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Compact Hash Codes for Efficient Visual Descriptors Retrieval in Large Scale Databases [PDF]
, 2016 In this paper we present an efficient method for visual descriptors retrieval based on compact hash codes computed using a multiple k-means assignment. The method has been applied to the problem of approximate nearest neighbor (ANN) search of local and ...
Bertini, Marco +2 more
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Efficient Retrieval of Music Recordings Using Graph-Based Index Structures
Signals, 2021 Flexible retrieval systems are required for conveniently browsing through large music collections. In a particular content-based music retrieval scenario, the user provides a query audio snippet, and the retrieval system returns music recordings from the
Frank Zalkow +2 more
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Simultaneous nearest neighbor search [PDF]
, 2016 Motivated by applications in computer vision and databases, we introduce and study the Simultaneous Nearest Neighbor Search (SNN) problem. Given a set of data points, the goal of SNN is to design a data structure that, given a collection of queries ...
Indyk, Piotr +3 more
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Efficient Classification for Metric Data [PDF]
, 2014 Recent advances in large-margin classification of data residing in general metric spaces (rather than Hilbert spaces) enable classification under various natural metrics, such as string edit and earthmover distance. A general framework developed for this
Gottlieb, Lee-Ad +2 more
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A probabilistic molecular fingerprint for big data settings
Journal of Cheminformatics, 2018 Background Among the various molecular fingerprints available to describe small organic molecules, extended connectivity fingerprint, up to four bonds (ECFP4) performs best in benchmarking drug analog recovery studies as it encodes substructures with a ...
Daniel Probst, Jean-Louis Reymond
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An improved SIFT algorithm for registration between SAR and optical images
Scientific Reports, 2023 Aiming at improving the performance of scale invariant feature transform (SIFT) algorithm during the registration of optical and synthetic aperture radar (SAR) images, a new SIFT algorithm is proposed.
Wannan Zhang, Yuqian Zhao
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, 2014 Product quantization-based approaches are effective to encode high-dimensional data points for approximate nearest neighbor search. The space is decomposed into a Cartesian product of low-dimensional subspaces, each of which generates a sub codebook ...
Li, Shipeng +5 more
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Approximate Nearest-Neighbor Search for Line Segments
, 2021 Approximate nearest-neighbor search is a fundamental algorithmic problem that continues to inspire study due its essential role in numerous contexts. In contrast to most prior work, which has focused on point sets, we consider nearest-neighbor queries against a set of line segments in $\mathbb{R}^d$, for constant dimension $d$.
Abdelkader, Ahmed, Mount, David M.
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Pyramid Product Quantization for Approximate Nearest Neighbor Search
Applied SciencesProduct quantization (PQ) is a widely adopted technique for efficient approximate nearest neighbor (ANN) search in high-dimensional spaces, offering a favorable balance between accuracy and memory efficiency. However, standard PQ suffers from high online
Yang Wang +3 more
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