In recent years, information sharing has gained much benefit by the large diffusion of distributed computing, namely through P2P systems and, in line with the Semantic Web vision, through Peer Data Management Systems (PDMSs). In a PDMS scenario one of the most difficult challenges is query routing, i.e. the capability of selecting small subsets of semantically relevant peers to forward a query to. In this paper, we put the Semantic Routing Index (SRI) distributed mechanism we proposed in [6] at work. In particular, we present general SRI-based query execution models, designed around different performance priorities and minimizing the information spanning over the network. Starting from these models, we devise several SRI-enabled routing policies, characterized by different effectiveness and efficiency targets, and we deeply test them in ad-hoc PDMS simulation environments.
SRI@work: Efficient and Effective Routing Strategies in a PDMS / Mandreoli, Federica; Martoglia, Riccardo; W., Penzo; Sassatelli, Simona; Villani, Giorgio. - STAMPA. - 4831:(2007), pp. 285-297. (Intervento presentato al convegno 8th International Conference on Web Information Systems Engineering, WISE 2007 tenutosi a Nancy, fra nel December 3-7, 2007) [10.1007/978-3-540-76993-4_24].
SRI@work: Efficient and Effective Routing Strategies in a PDMS
MANDREOLI, Federica;MARTOGLIA, Riccardo;SASSATELLI, Simona;VILLANI, Giorgio
2007
Abstract
In recent years, information sharing has gained much benefit by the large diffusion of distributed computing, namely through P2P systems and, in line with the Semantic Web vision, through Peer Data Management Systems (PDMSs). In a PDMS scenario one of the most difficult challenges is query routing, i.e. the capability of selecting small subsets of semantically relevant peers to forward a query to. In this paper, we put the Semantic Routing Index (SRI) distributed mechanism we proposed in [6] at work. In particular, we present general SRI-based query execution models, designed around different performance priorities and minimizing the information spanning over the network. Starting from these models, we devise several SRI-enabled routing policies, characterized by different effectiveness and efficiency targets, and we deeply test them in ad-hoc PDMS simulation environments.
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