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  Optimizing Distributed Top-k Queries

Neumann, T., Bender, M., Michel, S., Schenkel, R., Triantafillou, P., & Weikum, G. (2008). Optimizing Distributed Top-k Queries. In J. Bailey, D. Maier, K.-D. Schewe, B. Thalheim, & X. S. Wang (Eds.), Web Information Systems Engineering – WISE 2008: 9th International Conference (pp. 337-349). Berlin: Springer.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-000F-1C8C-8 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0015-7E32-4
Genre: Conference Paper

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 Creators:
Neumann, Thomas1, Author           
Bender, Matthias1, Author           
Michel, Sebastian1, Author           
Schenkel, Ralf1, Author           
Triantafillou, Peter1, Author           
Weikum, Gerhard1, Author           
Affiliations:
1Databases and Information Systems, MPI for Informatics, Max Planck Society, ou_24018              

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 Abstract: Top-k query processing is a fundamental building block for efficient ranking in a large number of applications. Efficiency is a central issue, especially for distributed settings, when the data is spread across different nodes in a network. This paper introduces novel optimization methods for top-k aggregation queries in such distributed environments that can be applied to all algorithms that fall into the frameworks of the prior TPUT and KLEE methods. The optimizations address 1) hierarchically grouping input lists into top-k operator trees and optimizing the tree structure, and 2) computing data-adaptive scan depths for different input sources. The paper presents comprehensive experiments with two different real-life datasets, using the ns-2 network simulator for a packet-level simulation of a large Internet-style network.

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Language(s): eng - English
 Dates: 2009-03-192008
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 428182
DOI: 10.1007/978-3-540-85481-4_26
URI: http://dx.doi.org/10.1007/978-3-540-85481-4_26
Other: Local-ID: C125756E0038A185-8418F0D41ADF50D4C125743A002ADB36-NeumannBMSTW08
 Degree: -

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Title: WISE 2008
Place of Event: Auckland, New Zealand
Start-/End Date: 2008-09-01 - 2008-09-04

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Title: Web Information Systems Engineering – WISE 2008 : 9th International Conference
Source Genre: Proceedings
 Creator(s):
Bailey, James, Editor
Maier, David, Editor
Schewe, Klaus-Dieter, Editor
Thalheim, Bernhard, Editor
Wang, Xiaoyang Sean, Editor
Affiliations:
-
Publ. Info: Berlin : Springer
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 337 - 349 Identifier: ISBN: 3-540-85480-0

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Title: Lecture Notes in Computer Science
Source Genre: Series
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Publ. Info: -
Pages: - Volume / Issue: 5175 Sequence Number: - Start / End Page: - Identifier: -