NAS algorithm for semantic query routing systems in complex networks

Laura Cruz-Reyes, Claudia Guadalupe Gómez Santillán, Marco Antonio Aguirre Lam, Satu Elisa Schaeffer, Tania Turrubiates López, Rogelio Ortega Izaguirre, Héctor J. Fraire-Huacuja

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

The modern distributed systems are acquiring a great importance in our daily lives. Each day more transactions are conducted through devices which perform queries that are dependent on the reliability, availability and security of distributed applications. In addition, those systems show great dynamism as a result of the extremely complex and unpredictable interactions between the distributed components, making it practically impossible to evaluate their behavior. In this paper, we evaluate the performance of the NAS algorithm (Neighboring-Ant Search), which is an algorithm for distributed textual query routing based on the Ant Colony System metaheuristic and SemAnt algorithm, improved with a local topological characterization metric and a classic local exploration method called lookahead, with the aim of improving the performance of the distributed search. Our results show that including local information like the topological metric and the exploration method in the Neighboring-Ant Search algorithm improves its performance 40%, in terms of the number of hops needed to locate a set of resources in a scale-free network.

Original languageEnglish
Title of host publicationInternational Symposium on Distributed Computing and Artificial Intelligence 2008 (DCAI 2008)
EditorsJuan Corchado, Sara Rodriguez, James Llinas, Jose Molina
Pages284-292
Number of pages9
DOIs
StatePublished - 2009
Externally publishedYes

Publication series

NameAdvances in Soft Computing
Volume50
ISSN (Print)1615-3871
ISSN (Electronic)1860-0794

Keywords

  • Ant colony system
  • Internet
  • Peer-to-peer network
  • Query routing system
  • Scale-free
  • Topology

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