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Cooperative cache analysis for distributed search engines
dc.contributor.author | Domínguez Sal, David |
dc.contributor.author | Pérez Casany, Marta |
dc.contributor.author | Larriba Pey, Josep |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Matemàtica Aplicada II |
dc.date.accessioned | 2011-08-25T10:59:55Z |
dc.date.available | 2011-08-25T10:59:55Z |
dc.date.created | 2010 |
dc.date.issued | 2010 |
dc.identifier.citation | Dominguez, 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.uri | http://hdl.handle.net/2117/13116 |
dc.description.abstract | In 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.extent | 25 p. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Informàtica::Sistemes d'informació::Emmagatzematge i recuperació de la informació |
dc.subject.lcsh | Search engines -- Computer programs |
dc.title | Cooperative cache analysis for distributed search engines |
dc.type | Article |
dc.subject.lemac | Cercadors d'informació |
dc.contributor.group | Universitat Politècnica de Catalunya. DAMA-UPC - Data Management Group |
dc.contributor.group | Universitat Politècnica de Catalunya. GREMA - Grup de Recerca en Estadística Matemàtica i les seves Aplicacions |
dc.identifier.doi | 10.1504/IJITCC.2010.035226 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://www.inderscience.com/storage/f511831012129764.pdf |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 5820316 |
dc.description.version | Postprint (published version) |
local.citation.author | Dominguez, D.; Pérez-Casany, M.; Larriba, J. |
local.citation.publicationName | International Journal of Information Technology, Communications and Convergence |
local.citation.volume | 1 |
local.citation.number | 1 |
local.citation.startingPage | 41 |
local.citation.endingPage | 65 |
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