DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, J | - |
dc.contributor.author | Hwang, SW | - |
dc.date.accessioned | 2016-03-31T07:39:39Z | - |
dc.date.available | 2016-03-31T07:39:39Z | - |
dc.date.created | 2015-02-04 | - |
dc.date.issued | 2014-01 | - |
dc.identifier.issn | 0306-4379 | - |
dc.identifier.other | 2014-OAK-0000031586 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/13874 | - |
dc.description.abstract | Skyline queries have recently received considerable attention as an alternative decision-making operator in the database community. The conventional skyline algorithms have primarily focused on optimizing the dominance of points in order to remove non-skyline points as efficiently as possible, but have neglected to take into account the incomparability of points in order to bypass unnecessary comparisons. To design a scalable skyline algorithm, we first analyze a cost model that copes with both dominance and incomparability, and develop a novel technique to select a cost-optimal point, called a pivot point, that minimizes the number of comparisons in point-based space partitioning. We then implement the proposed pivot point selection technique in the existing sorting- and partitioning-based algorithms. For point insertions/deletions, we also discuss how to maintain the current skyline using a skytree, derived from recursive point-based space partitioning. Furthermore, we design an efficient greedy algorithm for the k representative skyline using the skytree. Experimental results demonstrate that the proposed algorithms are significantly faster than the state-of-the-art algorithms. (C) 2013 Elsevier Ltd. All rights reserved. | - |
dc.description.statementofresponsibility | X | - |
dc.language | English | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.relation.isPartOf | INFORMATION SYSTEMS | - |
dc.title | Scalable skyline computation using a balanced pivot selection technique | - |
dc.type | Article | - |
dc.contributor.college | 컴퓨터공학과 | - |
dc.identifier.doi | 10.1016/J.IS.2013.05.005 | - |
dc.author.google | Lee, J | - |
dc.author.google | Hwang, SW | - |
dc.relation.volume | 39 | - |
dc.relation.startpage | 1 | - |
dc.relation.lastpage | 21 | - |
dc.contributor.id | 10147595 | - |
dc.relation.journal | INFORMATION SYSTEMS | - |
dc.relation.index | SCI급, SCOPUS 등재논문 | - |
dc.relation.sci | SCI | - |
dc.collections.name | Journal Papers | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | INFORMATION SYSTEMS, v.39, pp.1 - 21 | - |
dc.identifier.wosid | 000329531300001 | - |
dc.date.tcdate | 2019-01-01 | - |
dc.citation.endPage | 21 | - |
dc.citation.startPage | 1 | - |
dc.citation.title | INFORMATION SYSTEMS | - |
dc.citation.volume | 39 | - |
dc.contributor.affiliatedAuthor | Hwang, SW | - |
dc.identifier.scopusid | 2-s2.0-84883163755 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 11 | - |
dc.description.scptc | 14 | * |
dc.date.scptcdate | 2018-05-121 | * |
dc.type.docType | Article | - |
dc.subject.keywordPlus | EFFICIENT | - |
dc.subject.keywordPlus | MAXIMA | - |
dc.subject.keywordPlus | SET | - |
dc.subject.keywordAuthor | Skyline | - |
dc.subject.keywordAuthor | Dominance | - |
dc.subject.keywordAuthor | Incomparability | - |
dc.subject.keywordAuthor | Pivot point | - |
dc.subject.keywordAuthor | Pivot point selection | - |
dc.subject.keywordAuthor | Point-based space partitioning | - |
dc.relation.journalWebOfScienceCategory | Computer Science, Information Systems | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Computer Science | - |
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