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We propose a novel generic inverted index framework on the GPU (called GENIE), aiming to reduce the programming complexity of the GPU for parallel similarity search of different data types. Not every data type and similarity measure are…

This paper is concerned with matching feature vectors in a one-to-one fashion across large collections of datasets. Formulating this task as a multidimensional assignment problem with decomposable costs (MDADC), we develop extremely fast…

统计计算 · 统计学 2021-01-07 David Degras

Elastic similarity measures are fundamental to time series similarity search because of their ability to handle temporal misalignments. These measures are inherently computationally expensive, therefore necessitating the use of lower bounds…

数据库 · 计算机科学 2026-03-20 Zemin Chao , Boyu Xiao , Zitong Li , Zhixin Qi , Xianglong Liu , Hongzhi Wang

Graph Pattern Mining (GPM) is an important, rapidly evolving, and computation demanding area. GPM computation relies on subgraph enumeration, which consists in extracting subgraphs that match a given property from an input graph. Graphics…

分布式、并行与集群计算 · 计算机科学 2022-12-12 Samuel Ferraz , Vinicius Dias , Carlos H. C. Teixeira , George Teodoro , Wagner Meira

Proximity graph-based methods have emerged as a leading paradigm for approximate nearest neighbor (ANN) search in the system community. This paper presents fresh insights into the theoretical foundation of these methods. We describe an…

数据结构与算法 · 计算机科学 2025-09-10 Shangqi Lu , Yufei Tao

This study proposes a novel hybrid retrieval strategy for Retrieval-Augmented Generation (RAG) that integrates cosine similarity and cosine distance measures to improve retrieval performance, particularly for sparse data. The traditional…

信息检索 · 计算机科学 2024-06-05 Kush Juvekar , Anupam Purwar

Neural embedding models are extensively employed in the table union search problem, which aims to find semantically compatible tables that can be merged with a given query table. In particular, multi-vector models, which represent a table…

数据库 · 计算机科学 2025-11-10 Yiming Xie , Hua Dai , Mingfeng Jiang , Pengyue Li , zhengkai Zhang , Bohan Li

Among the many possible approaches for the parallelization of self-organizing networks, and in particular of growing self-organizing networks, perhaps the most common one is producing an optimized, parallel implementation of the standard…

分布式、并行与集群计算 · 计算机科学 2015-03-31 Giacomo Parigi , Angelo Stramieri , Danilo Pau , Marco Piastra

In object detection, a well-defined similarity metric can significantly enhance model performance. Currently, the IoU-based similarity metric is the most commonly preferred choice for detectors. However, detectors using IoU as a similarity…

计算机视觉与模式识别 · 计算机科学 2025-11-03 Ziqian Guan , Xieyi Fu , Pengjun Huang , Hengyuan Zhang , Hubin Du , Yongtao Liu , Yinglin Wang , Qang Ma

We present a new adaptive parallel algorithm for the challenging problem of multi-dimensional numerical integration on massively parallel architectures. Adaptive algorithms have demonstrated the best performance, but efficient many-core…

分布式、并行与集群计算 · 计算机科学 2021-06-24 Ioannis Sakiotis , Kamesh Arumugam , Marc Paterno , Desh Ranjan , Balša Terzić , Mohammad Zubair

Optimization tasks over relational data, such as clustering, often suffer from the prohibitive cost of join operations, which are necessary to access the full dataset. While geometric data structures like BBD trees yield fast approximation…

数据库 · 计算机科学 2026-03-13 Aryan Esmailpour , Stavros Sintos

One of the challenges in optimization of high dimensional problems is finding appropriate solutions in a way that are as close as possible to the global optima. In this regard, one of the most common phenomena that occurs is the curse of…

最优化与控制 · 数学 2021-12-22 Somayeh Seifi Shalamzari , Mojtaba Banifakhr

Reduction operations are extensively employed in many computational problems. A reduction consists of, given a finite set of numeric elements, combining into a single value all elements in that set, using for this a combiner function. A…

分布式、并行与集群计算 · 计算机科学 2017-10-23 Walid Jradi , Hugo do Nascimento , Wellington Martins

GPUs are uniquely suited to accelerate (SQL) analytics workloads thanks to their massive compute parallelism and High Bandwidth Memory (HBM) -- when datasets fit in the GPU HBM, performance is unparalleled. Unfortunately, GPU HBMs remain…

Local search is a successful approach for solving combinatorial optimization and constraint satisfaction problems. With the progressing move toward multi and many-core systems, GPUs and the quest for Exascale systems, parallelism has become…

编程语言 · 计算机科学 2013-05-13 Rui Machado , Salvador Abreu , Daniel Diaz

We propose Partition Dimensions Across (PDX), a data layout for vectors (e.g., embeddings) that, similar to PAX [6], stores multiple vectors in one block, using a vertical layout for the dimensions (Figure 1). PDX accelerates exact and…

数据库 · 计算机科学 2025-03-07 Leonardo Kuffo , Elena Krippner , Peter Boncz

Graph similarity computation aims to predict a similarity score between one pair of graphs to facilitate downstream applications, such as finding the most similar chemical compounds similar to a query compound or Fewshot 3D Action…

机器学习 · 计算机科学 2021-01-06 Haoyan Xu , Ziheng Duan , Jie Feng , Runjian Chen , Qianru Zhang , Zhongbin Xu , Yueyang Wang

We introduce FastGraph, a novel GPU-optimized k-nearest neighbor algorithm specifically designed to accelerate graph construction in low-dimensional spaces (2-10 dimensions), critical for high-performance graph neural networks. Our method…

分布式、并行与集群计算 · 计算机科学 2025-11-14 Aarush Agarwal , Raymond He , Jan Kieseler , Matteo Cremonesi , Shah Rukh Qasim

In this paper we solve on GPUs massive problems with large amount of data, which are not appropriate for solution with the SIMD technology. For the given problem we consider a three-level parallelization. The multithreading of CPU is used…

分布式、并行与集群计算 · 计算机科学 2014-02-18 Natalya Litvinenko

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…

信息检索 · 计算机科学 2026-04-29 Dongfang Zhao