Querying a PDMS means either flooding the network with messages to all peers or taking advantage of a routing mechanism to reformulate a query only on the best peers selected according to some given criteria. As reformulations may lead to semantic approximations, we deem that such approximations can be exploited for locating the semantically best directions to forward a query to. In this paper, we present our experiences in devising and testing a mechanism for effective query routing in a PDMS. In particular, we describe a distributed index mechanism where each peer is provided with a Semantic Routing Index (SRI) for routing queries effectively. We illustrate SRIs’ structure, their use and the framework we devised for their incremental update, then we provide an extensive evaluation of their effectiveness through a set of query routing experiments on a variety of scenarios. This work is partially supported by the PRIN WISDOM and FIRB NeP4B national projects.

Semantic Query Routing Experiences in a PDMS / Mandreoli, Federica; Martoglia, Riccardo; Sassatelli, Simona; W., Penzo. - STAMPA. - CEUR Workshop Proceedings 201:(2006), pp. ---. (Intervento presentato al convegno 3rd Italian Semantic Web Workshop (SWAP 2006) tenutosi a Pisa, Italy nel December 18-20, 2006).

Semantic Query Routing Experiences in a PDMS

MANDREOLI, Federica;MARTOGLIA, Riccardo;SASSATELLI, Simona;
2006

Abstract

Querying a PDMS means either flooding the network with messages to all peers or taking advantage of a routing mechanism to reformulate a query only on the best peers selected according to some given criteria. As reformulations may lead to semantic approximations, we deem that such approximations can be exploited for locating the semantically best directions to forward a query to. In this paper, we present our experiences in devising and testing a mechanism for effective query routing in a PDMS. In particular, we describe a distributed index mechanism where each peer is provided with a Semantic Routing Index (SRI) for routing queries effectively. We illustrate SRIs’ structure, their use and the framework we devised for their incremental update, then we provide an extensive evaluation of their effectiveness through a set of query routing experiments on a variety of scenarios. This work is partially supported by the PRIN WISDOM and FIRB NeP4B national projects.
2006
3rd Italian Semantic Web Workshop (SWAP 2006)
Pisa, Italy
December 18-20, 2006
CEUR Workshop Proceedings 201
-
-
Mandreoli, Federica; Martoglia, Riccardo; Sassatelli, Simona; W., Penzo
Semantic Query Routing Experiences in a PDMS / Mandreoli, Federica; Martoglia, Riccardo; Sassatelli, Simona; W., Penzo. - STAMPA. - CEUR Workshop Proceedings 201:(2006), pp. ---. (Intervento presentato al convegno 3rd Italian Semantic Web Workshop (SWAP 2006) tenutosi a Pisa, Italy nel December 18-20, 2006).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/587580
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