DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, J | - |
dc.contributor.author | Cho, H | - |
dc.contributor.author | Lee, S | - |
dc.contributor.author | Hwang, SW | - |
dc.date.accessioned | 2016-03-31T07:39:55Z | - |
dc.date.available | 2016-03-31T07:39:55Z | - |
dc.date.created | 2015-02-04 | - |
dc.date.issued | 2014-12 | - |
dc.identifier.issn | 1041-4347 | - |
dc.identifier.other | 2014-OAK-0000031581 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/13879 | - |
dc.description.abstract | A top-k query retrieves the best k tuples by assigning scores for each tuple in a target relation with respect to a user-specific scoring function. This paper studies the problem of constructing an indexing structure for supporting top-k queries over varying scoring functions and retrieval sizes. The existing research efforts can be categorized into three approaches: list-, layer-, and view-based approaches. In this paper, we mainly focus on the layer-based approach that pre-materializes tuples into consecutive multiple layers. We first propose a dual-resolution layer that consists of coarse-level and fine-level layers. Specifically, we build coarse-level layers using skylines, and divide each coarse-level layer into fine-level sublayers using convex skylines. To make our proposed dual-resolution layer scalable, we then address the following optimization directions: 1) index construction; 2) disk-based storage scheme; 3) the design of the virtual layer; and 4) index maintenance for tuple updates. Our evaluation results show that our proposed method is more scalable than the state-of-the-art methods. | - |
dc.description.statementofresponsibility | X | - |
dc.language | English | - |
dc.publisher | IEEE COMPUTER SOC | - |
dc.relation.isPartOf | IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING | - |
dc.subject | skyline | - |
dc.subject | convex skyline | - |
dc.subject | for all-dominance | - |
dc.subject | there exists-dominance | - |
dc.subject | dual-resolution layer | - |
dc.subject | SKYLINE | - |
dc.subject | DATABASES | - |
dc.title | Toward Scalable Indexing for Top-k Queries | - |
dc.type | Article | - |
dc.contributor.college | 컴퓨터공학과 | - |
dc.identifier.doi | 10.1109/TKDE.2013.149 | - |
dc.author.google | Lee, J | - |
dc.author.google | Cho, H | - |
dc.author.google | Lee, S | - |
dc.author.google | Hwang, SW | - |
dc.relation.volume | 26 | - |
dc.relation.issue | 12 | - |
dc.relation.startpage | 3103 | - |
dc.relation.lastpage | 3116 | - |
dc.contributor.id | 10147595 | - |
dc.relation.journal | IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING | - |
dc.relation.index | SCI급, SCOPUS 등재논문 | - |
dc.relation.sci | SCI | - |
dc.collections.name | Journal Papers | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING, v.26, no.12, pp.3103 - 3116 | - |
dc.identifier.wosid | 000344993900019 | - |
dc.date.tcdate | 2019-01-01 | - |
dc.citation.endPage | 3116 | - |
dc.citation.number | 12 | - |
dc.citation.startPage | 3103 | - |
dc.citation.title | IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING | - |
dc.citation.volume | 26 | - |
dc.contributor.affiliatedAuthor | Hwang, SW | - |
dc.identifier.scopusid | 2-s2.0-84910092069 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 1 | - |
dc.description.scptc | 2 | * |
dc.date.scptcdate | 2018-05-121 | * |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | skyline | - |
dc.subject.keywordAuthor | convex skyline | - |
dc.subject.keywordAuthor | for all-dominance | - |
dc.subject.keywordAuthor | there exists-dominance | - |
dc.subject.keywordAuthor | dual-resolution layer | - |
dc.relation.journalWebOfScienceCategory | Computer Science, Artificial Intelligence | - |
dc.relation.journalWebOfScienceCategory | Computer Science, Information Systems | - |
dc.relation.journalWebOfScienceCategory | Engineering, Electrical & Electronic | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Computer Science | - |
dc.relation.journalResearchArea | Engineering | - |
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