Active Adjustment: An Effective Method for Keeping the TPR*-tree Compact
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Sang-Wook | - |
dc.contributor.author | Jang, Min-Hee | - |
dc.contributor.author | Lim, SungChae | - |
dc.date.accessioned | 2022-12-20T15:51:41Z | - |
dc.date.available | 2022-12-20T15:51:41Z | - |
dc.date.created | 2022-08-27 | - |
dc.date.issued | 2010-09 | - |
dc.identifier.issn | 1016-2364 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/174172 | - |
dc.description.abstract | Recently, with the advent of diverse applications based on locations of moving objects, it has become crucial to develop efficient index schemes for spatio-temporal databases. The TPR*-tree is popularly accepted as an index structure for processing future-time queries on such spatio-temporal databases. In the TPR*-tree, the future locations of moving objects are predicted based on the Conservative Bounding Rectangle (CBR). Since the areas predicted from CBRs tend to grow rapidly over time. CBRs thus enlarged lead to serious performance degradation in query processing. To solve the problem, we propose a novel method to adjust CBRs to be tight, thereby preventing the performance degradation of query processing. Our method examines whether the adjustment of a CBR is necessary when accessing a leaf node for processing a user query. Thus, it does not incur extra disk I/Os in this examination. Also, in order to make a correct decision, we devise a cost model that considers the I/O overhead for the CBR adjustment and the performance gain in the future-time owing to the CBR adjustment. With the cost model, we can prevent unusual expansions of BRs even when updates on nodes are infrequent and also avoid unnecessary execution of the CBR adjustment. For performance evaluation, we conducted a variety of experiments. The results show that our method improves the performance of the original TPR*-tree significantly. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | INST INFORMATION SCIENCE | - |
dc.title | Active Adjustment: An Effective Method for Keeping the TPR*-tree Compact | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Sang-Wook | - |
dc.identifier.scopusid | 2-s2.0-77957985517 | - |
dc.identifier.wosid | 000282396700002 | - |
dc.identifier.bibliographicCitation | JOURNAL OF INFORMATION SCIENCE AND ENGINEERING, v.26, no.5, pp.1583 - 1600 | - |
dc.relation.isPartOf | JOURNAL OF INFORMATION SCIENCE AND ENGINEERING | - |
dc.citation.title | JOURNAL OF INFORMATION SCIENCE AND ENGINEERING | - |
dc.citation.volume | 26 | - |
dc.citation.number | 5 | - |
dc.citation.startPage | 1583 | - |
dc.citation.endPage | 1600 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Computer Science | - |
dc.relation.journalWebOfScienceCategory | Computer Science, Information Systems | - |
dc.subject.keywordPlus | Degradation | - |
dc.subject.keywordPlus | Indexing (of information) | - |
dc.subject.keywordPlus | Query languages | - |
dc.subject.keywordPlus | -tree | - |
dc.subject.keywordPlus | Futuretime queries | - |
dc.subject.keywordPlus | Moving objects | - |
dc.subject.keywordPlus | Spatio-temporal | - |
dc.subject.keywordPlus | Spatio-temporal database | - |
dc.subject.keywordPlus | TPR-tree | - |
dc.subject.keywordPlus | Query processing | - |
dc.subject.keywordAuthor | moving objects | - |
dc.subject.keywordAuthor | spatio-temporal databases | - |
dc.subject.keywordAuthor | spatio | - |
dc.subject.keywordAuthor | temporal indexing | - |
dc.subject.keywordAuthor | futuretime queries | - |
dc.subject.keywordAuthor | TPR-tree | - |
dc.subject.keywordAuthor | TPR*-tree | - |
dc.identifier.url | https://jise.iis.sinica.edu.tw/JISESearch/pages/View/PaperView.jsf?keyId=32_494 | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea+82-2-2220-1365
COPYRIGHT © 2021 HANYANG UNIVERSITY.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.