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  On the Usage of Global Document Occurrences in Peer-to-Peer Information Systems

Papapetrou, O., Michel, S., Bender, M., & Weikum, G. (2005). On the Usage of Global Document Occurrences in Peer-to-Peer Information Systems. In On the Move to Meaningful Internet Systems 2005: CoopIS, DOA, and ODBASE: OTM Confederated International Conferences, CoopIS, DOA, and ODBASE 2005 (pp. 310-328). Heidelberg, Germany: Springer.

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 Creators:
Papapetrou, Odysseas1, Author           
Michel, Sebastian1, Author           
Bender, Matthias1, Author           
Weikum, Gerhard1, Author           
Meersman, Robert, Editor
Tari, Zahir, Editor
Hacid, Mohand-Said, Editor
Mylopoulos, John, Editor
Pernici, Barbara, Editor
Babaoglu, Özalp, Editor
Jacobsen, Hans-Arno, Editor
Loyall, Joseph P., Editor
Kifer, Michael, Editor
Spaccapietra, Stefano, Editor
Affiliations:
1Databases and Information Systems, MPI for Informatics, Max Planck Society, ou_24018              

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 Abstract: There exist a number of approaches for query processing in Peer-to-Peer information systems that efficiently retrieve relevant information from distributed peers. However, very few of them take into consideration the overlap between peers: as the most popular resources (e.g., documents or files) are often present at most of the peers, a large fraction of the documents eventually received by the query initiator are duplicates. We develop a technique based on the notion of global document occurrences (GDO) that, when processing a query, penalizes requent documents increasingly as more and more peers contribute their local results. We argue that the additional effort to create and maintain the GDO information is reasonably low, as the necessary information can be piggybacked onto the existing communication. Early experiments indicate that our approach significantly decreases the number of peers that have to be involved in a query to reach a certain level of recall and, thus, decreases user-perceived latency and the wastage of network resources.

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Language(s): eng - English
 Dates: 2006-06-142005
 Publication Status: Issued
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 278908
Other: Local-ID: C1256DBF005F876D-7FECA68172B14695C125705900410203-COOPIS2005
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Title: Untitled Event
Place of Event: Agia Napa, Cyprus
Start-/End Date: 2005-10-31

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Title: On the Move to Meaningful Internet Systems 2005: CoopIS, DOA, and ODBASE: OTM Confederated International Conferences, CoopIS, DOA, and ODBASE 2005
Source Genre: Proceedings
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Publ. Info: Heidelberg, Germany : Springer
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 310 - 328 Identifier: ISBN: 3-540-29736-7

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Title: Lecture Notes in Computer Science
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Pages: - Volume / Issue: 3760 Sequence Number: - Start / End Page: - Identifier: -