Skyline view: Efficient distributed subspace skyline computation

Jinhan Kim, Jongwuk Lee, Seung Won Hwang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


Skyline queries have gained much attention as alternative query semantics with pros (e.g.low query formulation overhead) and cons (e.g.large control over result size). To overcome the cons, subspace skyline queries have been recently studied, where users iteratively specify relevant feature subspaces on search space. However, existing works mainly focuss on centralized databases. This paper aims to extend subspace skyline computation to distributed environments such as the Web, where the most important issue is to minimize the cost of accessing vertically distributed objects. Toward this goal, we exploit prior skylines that have overlapped subspaces to the given subspace. In particular, we develop algorithms for three scenarios- when the subspace of prior skylines is superspace, subspace, or the rest. Our experimental results validate that our proposed algorithm shows significantly better performance than the state-of-the-art algorithms.

Original languageEnglish
Title of host publicationData Warehousing and Knowledge Discovery - 11th International Conference, DaWaK 2009, Proceedings
Number of pages13
Publication statusPublished - 2009
Event11th International Conference on Data Warehousing and Knowledge Discovery, DaWaK 2009 - Linz, Austria
Duration: 2009 Aug 312009 Sept 2

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume5691 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Other11th International Conference on Data Warehousing and Knowledge Discovery, DaWaK 2009

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • General Computer Science


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