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We demonstrate three approaches for adapting the open-source Lucene search library to perform approximate nearest-neighbor search on arbitrary dense vectors, using similarity search on word embeddings as a case study. At its core, Lucene is…

Information Retrieval · Computer Science 2019-10-29 Tommaso Teofili , Jimmy Lin

Low-luminosity Active Galactic Nuclei (AGN) are believed to be surrounded by a collisionless, highly magnetized accretion flow. As a result, Particle-in-Cell simulations are the best tools to study the immediate vicinity of the event…

High Energy Astrophysical Phenomena · Physics 2025-03-07 Alexander Y. Chen , Martin Luepker , Yajie Yuan

Graph similarity search is a common and fundamental operation in graph databases. One of the most popular graph similarity measures is the Graph Edit Distance (GED) mainly because of its broad applicability and high interpretability.…

Databases · Computer Science 2018-01-25 Zijian Li , Xun Jian , Xiang Lian , Lei Chen

We study the problem of approximate near neighbor (ANN) search and show the following results: - An improved framework for solving the ANN problem using locality-sensitive hashing, reducing the number of evaluations of locality-sensitive…

Data Structures and Algorithms · Computer Science 2019-06-25 Tobias Christiani

Networks are ubiquitous in the real world. Link prediction, as one of the key problems for network-structured data, aims to predict whether there exists a link between two nodes. The traditional approaches are based on the explicit…

Machine Learning · Computer Science 2021-06-01 Wei Wu , Bin Li , Chuan Luo , Wolfgang Nejdl

The bi-encoder architecture provides a framework for understanding machine-learned retrieval models based on dense and sparse vector representations. Although these representations capture parametric realizations of the same underlying…

Information Retrieval · Computer Science 2023-12-01 Haonan Chen , Carlos Lassance , Jimmy Lin

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…

Databases · Computer Science 2019-07-30 Omid Jafari , John Ossorgin , Parth Nagarkar

Due to the growth of geo-tagged images, recent web and mobile applications provide search capabilities for images that are similar to a given query image and simultaneously within a given geographical area. In this paper, we focus on…

Databases · Computer Science 2017-02-20 Abdullah Alfarrarjeh , Cyrus Shahabi

Graph Neural Architecture Search (GNAS) has achieved superior performance on various graph-structured tasks. However, existing GNAS studies overlook the applications of GNAS in resource-constraint scenarios. This paper proposes to design a…

Machine Learning · Computer Science 2024-06-25 Beini Xie , Heng Chang , Ziwei Zhang , Zeyang Zhang , Simin Wu , Xin Wang , Yuan Meng , Wenwu Zhu

This paper provides a new similarity detection algorithm. Given an input set of multi-dimensional data points, where each data point is assumed to be multi-dimensional, and an additional reference data point for similarity finding, the…

Artificial Intelligence · Computer Science 2017-07-12 Yariv Aizenbud , Amir Averbuch , Gil Shabat , Guy Ziv

Cloud computing is emerging as a revolutionary computing paradigm, while security and privacy become major concerns in the cloud scenario. For which Searchable Encryption (SE) technology is proposed to support efficient retrieval of…

Information Retrieval · Computer Science 2017-06-01 Ruihui Zhao , Yuanliang Sun , Mizuho Iwaihara

We describe the GPU implementation of shifted or multimass iterative solvers for sparse linear systems of the sort encountered in lattice gauge theory. We provide a generic tool that can be used by those without GPU programming experience…

High Energy Physics - Lattice · Physics 2011-02-16 Richard Galvez , Greg van Anders

Generative adversarial nets (GANs) have been widely studied during the recent development of deep learning and unsupervised learning. With an adversarial training mechanism, GAN manages to train a generative model to fit the underlying…

Information Retrieval · Computer Science 2018-06-12 Weinan Zhang

Subteam replacement is defined as finding the optimal candidate set of people who can best function as an unavailable subset of members (i.e., subteam) for certain reasons (e.g., conflicts of interests, employee churn), given a team of…

Social and Information Networks · Computer Science 2022-11-14 Chuxuan Hu , Qinghai Zhou , Hanghang Tong

Graph-based Approximate Nearest Neighbor (ANN) search often suffers from performance degradation in high-dimensional spaces due to the Euclidean-Geodesic mismatch, where greedy routing diverges from the underlying data manifold. To address…

Information Retrieval · Computer Science 2026-04-29 Dongfang Zhao

This paper introduces a distributed, GPU-centric experience replay system, GEAR, designed to perform scalable reinforcement learning (RL) with large sequence models (such as transformers). With such models, existing systems such as Reverb…

Machine Learning · Computer Science 2023-10-10 Hanjing Wang , Man-Kit Sit , Congjie He , Ying Wen , Weinan Zhang , Jun Wang , Yaodong Yang , Luo Mai

This paper lays the foundation for Genie, a testing framework that captures the impact of real hardware network behavior on ML workload performance, without requiring expensive GPUs. Genie uses CPU-initiated traffic over a hardware testbed…

Networking and Internet Architecture · Computer Science 2025-04-30 Jinsun Yoo , ChonLam Lao , Lianjie Cao , Bob Lantz , Minlan Yu , Tushar Krishna , Puneet Sharma

With the popularity of deep learning, the hardware implementation platform of deep learning has received increasing interest. Unlike the general purpose devices, e.g., CPU, or GPU, where the deep learning algorithms are executed at the…

Machine Learning · Computer Science 2022-11-22 Lang Feng , Wenjian Liu , Chuliang Guo , Ke Tang , Cheng Zhuo , Zhongfeng Wang

Approximate Nearest Neighbour Search (ANNS) is a subroutine in algorithms routinely employed in information retrieval, pattern recognition, data mining, image processing, and beyond. Recent works have established that graph-based ANNS…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-04-15 Karthik V. , Saim Khan , Somesh Singh , Harsha Vardhan Simhadri , Jyothi Vedurada

Point-of-Interest (POI) retrieval aims to identify relevant candidates from massive-scale POI databases, serving as a cornerstone for diverse location-based services. However, in general map search scenarios, conventional POI retrieval…

Information Retrieval · Computer Science 2026-05-06 Dong Chen , Shuai Zheng , Haoyang Shao , Hongsheng Wu , Muhao Xu , Yeyu Yan , Ruifang Li , Zhenfeng Zhu
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