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相关论文: Locality-Sensitive Hashing for Earthquake Detectio…

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The multichannel rendezvous problem is a fundamental problem for neighbor discovery in many IoT applications. The existing works in the literature focus mostly on improving the worst-case performance, and the average-case performance is…

网络与互联网体系结构 · 计算机科学 2022-11-14 Guann-Yng Jiang , Cheng-Shang Chang

LSH (locality sensitive hashing) had emerged as a powerful technique in nearest-neighbor search in high dimensions [IM98, HIM12]. Given a point set $P$ in a metric space, and given parameters $r$ and $\varepsilon > 0$, the task is to…

计算几何 · 计算机科学 2017-04-11 Sariel Har-Peled , Sepideh Mahabadi

This paper introduces "Multi-Level Spherical LSH": parameter-free, a multi-level, data-dependant Locality Sensitive Hashing data structure for solving the Approximate Near Neighbors Problem (ANN). This data structure uses a modified version…

数据结构与算法 · 计算机科学 2017-09-19 Teresa Nicole Brooks , Rania Almajalid

Machine learning is becoming increasingly important in scientific and technological progress, due to its ability to create models that describe complex data and generalize well. The wealth of publicly-available seismic data nowadays…

地球物理 · 物理学 2020-08-10 Fabrizio Magrini , Dario Jozinović , Fabio Cammarano , Alberto Michelini , Lapo Boschi

Distributed Acoustic Sensing (DAS) is becoming increasingly popular in microseismic monitoring operations. This data acquisition technology converts fiber-optic cables into dense arrays of seismic sensors that can sample the seismic…

Nearest-neighbor query processing is a fundamental operation for many image retrieval applications. Often, images are stored and represented by high-dimensional vectors that are generated by feature-extraction algorithms. Since tree-based…

数据库 · 计算机科学 2019-12-17 Omid Jafari , Khandker Mushfiqul Islam , Parth Nagarkar

Locality sensitive hashing (LSH) is a powerful tool for sublinear-time approximate nearest neighbor search, and a variety of hashing schemes have been proposed for different dissimilarity measures. However, hash codes significantly depend…

Finding similar images is a necessary operation in many multimedia applications. Images are often represented and stored as a set of high-dimensional features, which are extracted using localized feature extraction algorithms. Locality…

多媒体 · 计算机科学 2020-10-16 Omid Jafari , Parth Nagarkar , Jonathan Montaño

Similarity search queries in high-dimensional spaces are an important type of queries in many domains such as image processing, machine learning, etc. Since exact similarity search indexing techniques suffer from the well-known curse of…

数据库 · 计算机科学 2019-07-30 Omid Jafari , John Ossorgin , Parth Nagarkar

Near neighbor problems are fundamental in algorithms for high-dimensional Euclidean spaces. While classical approaches suffer from the curse of dimensionality, locality sensitive hashing (LSH) can effectively solve a-approximate r-near…

数据结构与算法 · 计算机科学 2016-12-15 Wenlong Mou , Liwei Wang

The recent evolution of induced seismicity in Central United States calls for exhaustive catalogs to improve seismic hazard assessment. Over the last decades, the volume of seismic data has increased exponentially, creating a need for…

地球物理 · 物理学 2017-02-08 Thibaut Perol , Michaël Gharbi , Marine Denolle

We show the capabilities of a downhole Distributed Acoustic Sensing (DAS) array in detecting, locating and characterizing low-magnitude earthquakes occurring in the vicinity of the Frontier Observatory for Research in Geothermal Energy…

High rate Global Navigation Satellite System (HR GNSS) data can be highly useful for earthquake analysis as it provides continuous high-rate measurements of ground motion. This data can be used to estimate the magnitude, to assess the…

地球物理 · 物理学 2023-04-21 Claudia Quinteros Cartaya , Jonas Koehler , Wei Li , Johannes Faber , Nishtha Srivastava

Documenting the interplay between slow deformation and seismic ruptures is essential to understand the physics of earthquakes nucleation. However, slow deformation is often difficult to detect and characterize. The most pervasive seismic…

Among many solutions to the high-dimensional approximate nearest neighbor (ANN) search problem, locality sensitive hashing (LSH) is known for its sub-linear query time and robust theoretical guarantee on query accuracy. Traditional LSH…

数据库 · 计算机科学 2022-07-21 Yao Tian , Xi Zhao , Xiaofang Zhou

Locality-sensitive hashing (LSH) based frameworks have been used efficiently to select weight vectors in a dense hidden layer with high cosine similarity to an input, enabling dynamic pruning. While this type of scheme has been shown to…

机器学习 · 计算机科学 2023-06-06 Tahseen Rabbani , Marco Bornstein , Furong Huang

Locality sensitive hashing (LSH) is a fundamental algorithmic toolkit used by data scientists for approximate nearest neighbour search problems that have been used extensively in many large scale data processing applications such as near…

机器学习 · 统计学 2025-03-04 Bhisham Dev Verma , Rameshwar Pratap

Locality-sensitive hashing (LSH) has emerged as the dominant algorithmic technique for similarity search with strong performance guarantees in high-dimensional spaces. A drawback of traditional LSH schemes is that they may have \emph{false…

数据库 · 计算机科学 2016-08-22 Ninh Pham , Rasmus Pagh

The Indyk-Motwani Locality-Sensitive Hashing (LSH) framework (STOC 1998) is a general technique for constructing a data structure to answer approximate near neighbor queries by using a distribution $\mathcal{H}$ over locality-sensitive hash…

数据结构与算法 · 计算机科学 2018-02-19 Tobias Christiani

The MyShake project aims to build a global smartphone seismic network to facilitate large-scale earthquake early warning and other applications by leveraging the power of crowdsourcing. The MyShake mobile application first detects…

地球物理 · 物理学 2022-06-09 Qingkai Kong , Robert Martin-Short , Richard M. Allen