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dc.contributor.authorDomínguez Sal, David
dc.contributor.authorPérez Casany, Marta
dc.contributor.authorLarriba Pey, Josep
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Matemàtica Aplicada II
dc.date.accessioned2011-08-25T10:59:55Z
dc.date.available2011-08-25T10:59:55Z
dc.date.created2010
dc.date.issued2010
dc.identifier.citationDominguez, D.; Pérez-Casany, M.; Larriba, J. Cooperative cache analysis for distributed search engines. "International Journal of Information Technology, Communications and Convergence", 2010, vol. 1, núm. 1, p. 41-65.
dc.identifier.urihttp://hdl.handle.net/2117/13116
dc.description.abstractIn this paper, we study the performance of a distributed search engine from a data caching point of view using statistical tools on a varied set of configurations. We study two strategies to achieve better performance: cacheaware load balancing that issues the queries to nodes that store the computation in cache; and cooperative caching (CC) that stores and transfers the available computed contents from one node in the network to others. Since cache-aware decisions depend on information about the recent history, we also analyse how the ageing of this information impacts the system performance. Our results show that the combination of both strategies yield better throughput than individually implementing cooperative cache or cache-aware load balancing strategies because of a synergic improvement of the hit rate. Furthermore, the analysis concludes that the data structures to monitor the system need only moderate precision to achieve optimal throughput.
dc.format.extent25 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Informàtica::Sistemes d'informació::Emmagatzematge i recuperació de la informació
dc.subject.lcshSearch engines -- Computer programs
dc.titleCooperative cache analysis for distributed search engines
dc.typeArticle
dc.subject.lemacCercadors d'informació
dc.contributor.groupUniversitat Politècnica de Catalunya. DAMA-UPC - Data Management Group
dc.contributor.groupUniversitat Politècnica de Catalunya. GREMA - Grup de Recerca en Estadística Matemàtica i les seves Aplicacions
dc.identifier.doi10.1504/IJITCC.2010.035226
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://www.inderscience.com/storage/f511831012129764.pdf
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac5820316
dc.description.versionPostprint (published version)
local.citation.authorDominguez, D.; Pérez-Casany, M.; Larriba, J.
local.citation.publicationNameInternational Journal of Information Technology, Communications and Convergence
local.citation.volume1
local.citation.number1
local.citation.startingPage41
local.citation.endingPage65


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