Results 21 to 30 of about 247,233 (313)

A New Client-Server Architecture for Distributed Query Processing [PDF]

open access: yes, 1994
This paper presents the idea of "tuple bit-vectors" for distributed query processing. Using tuple bit-vectors, a new two-way semijoin operator called 2SJ++ that enhances the semijoin with an essentially "free" backward reduction capability is proposed ...
Li, Zhe, Ross, Kenneth A.
core   +2 more sources

Mass data processing and multidimensional database management based on deep learning

open access: yesOpen Computer Science, 2022
With the rapid development of the Internet of Things, the requirements for massive data processing technology are getting higher and higher. Traditional computer data processing capabilities can no longer deliver fast, simple, and efficient data analysis
Shen Haijie   +7 more
doaj   +1 more source

Pattern based processing of XPath queries [PDF]

open access: yes, 2008
As the popularity of areas including document storage and distributed systems continues to grow, the demand for high performance XML databases is increasingly evident.
Marks, Gerard, Roantree, Mark
core   +2 more sources

A PID-Based kNN Query Processing Algorithm for Spatial Data

open access: yesSensors, 2022
As a popular spatial operation, the k-Nearest Neighbors (kNN) query is widely used in various spatial application systems. How to efficiently process a kNN query on spatial big data has always been an important research topic in the field of spatial data
Baiyou Qiao   +3 more
doaj   +1 more source

Distributed Query Plan Generation Using Multiobjective Genetic Algorithm

open access: yesThe Scientific World Journal, 2014
A distributed query processing strategy, which is a key performance determinant in accessing distributed databases, aims to minimize the total query processing cost.
Shina Panicker, T. V. Vijay Kumar
doaj   +1 more source

Distributed Processing of Location-Based Aggregate Queries Using MapReduce

open access: yesISPRS International Journal of Geo-Information, 2019
The location-based aggregate queries, consisting of the shortest average distance query (SAvgDQ), the shortest minimal distance query (SMinDQ), the shortest maximal distance query (SMaxDQ), and the shortest sum distance query (SSumDQ) are new types of ...
Yuan-Ko Huang
doaj   +1 more source

A Distributed Hybrid Indexing for Continuous KNN Query Processing over Moving Objects

open access: yesISPRS International Journal of Geo-Information, 2022
The magnitude of highly dynamic spatial data is expanding rapidly due to the instantaneous evolution of mobile technology, resulting in challenges for continuous queries.
Imene Bareche, Ying Xia
doaj   +1 more source

AT-GIS: highly parallel spatial query processing with associative transducers [PDF]

open access: yes, 2015
Users in many domains, including urban planning, transportation, and environmental science want to execute analytical queries over continuously updated spatial datasets.
Ogden, Pietzuch, P, Thomas, D
core   +1 more source

MSP: Multiple Sub-graph Query Processing using Structure-based Graph Partitioning Strategy and Map-Reduce

open access: yesJournal of King Saud University: Computer and Information Sciences, 2019
In a distributed environment, the volume of graph database increases quickly because graphs emerge from several autonomous sources. Sub-graph query processing is a challenging problem in distributed environment.
Shaik Fathimabi   +2 more
doaj   +1 more source

QIACO: A Quantum Dynamic Cost Ant System for Query Optimization in Distributed Database

open access: yesIEEE Access, 2021
Query optimization is considered as the most significant part in a model of distributed database. The optimizer tries to find an optimal join order, which reduces the query execution cost. Several factors may affect the cost of query execution, including
Sayed A. Mohsin   +2 more
doaj   +1 more source

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