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Decentralized Dynamic Query Optimization based on Mobiles Agents for Large Scale Data Integration Systems

by Mohammad Hussein
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 60 - Number 8
Year of Publication: 2012
Authors: Mohammad Hussein
10.5120/9710-4172

Mohammad Hussein . Decentralized Dynamic Query Optimization based on Mobiles Agents for Large Scale Data Integration Systems. International Journal of Computer Applications. 60, 8 ( December 2012), 7-14. DOI=10.5120/9710-4172

@article{ 10.5120/9710-4172,
author = { Mohammad Hussein },
title = { Decentralized Dynamic Query Optimization based on Mobiles Agents for Large Scale Data Integration Systems },
journal = { International Journal of Computer Applications },
issue_date = { December 2012 },
volume = { 60 },
number = { 8 },
month = { December },
year = { 2012 },
issn = { 0975-8887 },
pages = { 7-14 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume60/number8/9710-4172/ },
doi = { 10.5120/9710-4172 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T21:05:59.606881+05:30
%A Mohammad Hussein
%T Decentralized Dynamic Query Optimization based on Mobiles Agents for Large Scale Data Integration Systems
%J International Journal of Computer Applications
%@ 0975-8887
%V 60
%N 8
%P 7-14
%D 2012
%I Foundation of Computer Science (FCS), NY, USA
Abstract

The query processing in large scale distributed mediations systems raises new problems and presents real challenges: efficiency of access, communication, confidentiality of access, availability of data, memory allocation. In this paper, we propose an execution model based on mobile agents for the distributed dynamic query optimization. In this model, each relational operator of an execution plan is executed by a mobile agent. Also, we embed into agent a migration policy allowing agent to choose an execution site among execution sites of the considered system. The performance evaluation shows that the proposed model improves the response time whatever the variation of estimations errors.

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Index Terms

Computer Science
Information Sciences

Keywords

Distributed mediation systems Query optimization Cost model mobile agents

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