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Bookmark-driven Query Routing in Peer-to-Peer Web Search

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons44113

Bender,  Matthias
Databases and Information Systems, MPI for Informatics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons45041

Michel,  Sebastian
Databases and Information Systems, MPI for Informatics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons45808

Zimmer,  Christian
Databases and Information Systems, MPI for Informatics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons45720

Weikum,  Gerhard
Databases and Information Systems, MPI for Informatics, Max Planck Society;

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Zitation

Bender, M., Michel, S., Zimmer, C., & Weikum, G. (2004). Bookmark-driven Query Routing in Peer-to-Peer Web Search. In Proceedings of the SIGIR Workshop on Peer-to-Peer Information Retrieval: 27th Annual International ACM SIGIR Conference; SIGIR 2004 P2PIR Workshop (pp. 1-12). Duisburg, Germany: Universität Duisburg-Essen.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000F-2A38-2
Zusammenfassung
We consider the problem of collaborative Web search and query routing strategies in a peer-to-peer (P2P) environment. In our architecture every peer has a full-fledged search engine with a (thematically focused) crawler and a local index whose contents may be tailored to the user's specific interest profile. Peers are autonomous and post meta-information about their bookmarks and index lists to a global directory, which is efficiently implemented in a decentralized manner using Chord-style distributed hash tables. A query posed by one peer is first evaluated locally; if the result is unsatisfactory the query is forwarded to selected peers. These peers are chosen based on a benefit/cost measure where benefit reflects the thematic similarity of peers' interest profiles, derived from bookmarks, and cost captures estimated peer load and response time. The meta-information that is needed for making these query routing decisions is efficiently looked up in the global directory; it can also be cached and proactively disseminated for higher availability and reduced network load.