NDLI: Object-relational management of complex geographical objects

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Object-relational management of complex geographical objects

Content Provider	ACM Digital Library
Author	Kunath, Peter Renz, Matthias Pfeifle, Martin Kriegel, Hans-Peter
Abstract	Modern database applications including computer-aided design, multimedia information systems, medical imaging, molecular biology, or geographical information systems impose new requirements on the effective and efficient management of spatial data. Particular problems arise from the need of high resolutions for large spatial objects and from the design goal to use general purpose database management systems in order to guarantee industrial-strength. In the past two decades, various stand-alone spatial index structures have been proposed but their integration into fully-fledged database systems is problematic. Most of these approaches are based on the decomposition of spatial objects leading to replicating index structures. In contrast to common black-and-white decompositions which suffer from the lack of intermediate solutions, we introduce gray intervals which are stored in a spatial index. Additionally, we store the exact information of these gray intervals in a compressed way. These gray intervals are created by using a cost-based decompositioning algorithm which takes the access probability and the decompression cost of them into account. Furthermore, we exploit statistical information of the database objects to find a cost-optimal decomposition of the query objects. The experimental evaluation on the SEQUOIA benchmark test points out that our new concept outperforms the Relational Interval Tree by more than one order of magnitude with respect to overall query response time.
Starting Page	109
Ending Page	117
Page Count	9
File Format	PDF
ISBN	1581139799
DOI	10.1145/1032222.1032240
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2004-11-12
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Object decomposition Data management Spatial Object-relational database
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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