NDLI: Development of multi-step filtering processor

Content Provider	IEEE Xplore Digital Library
Author	Miyeon Kim Sumi Lim Jangsu Kim
Copyright Year	1999
Description	Author affiliation: Multimedia Technol. Res. Lab., Korea Telecom, Seoul, South Korea (Miyeon Kim)
Abstract	Spatial query processing using a spatial access method (SAM) faces the problem of having to examine a large number of candidate objects during the CPU-time intensive refinement step. This is due to the minimum bounding rectangle (MBR) filter in the first step of query processing which is rough by nature. In order to overcome this problem, the multi-step filtering method that takes a series of spatial filters with higher filtering ratios than that of the MBR in a cascade fashion for the object set already filtered by an MBR has been introduced. Most of the spatial filters were only able to manage areal objects. In this paper, we propose the minimum maximum points (MMP) filter, a spatial filter that can manage not only areal objects but also linear objects. In addition, we propose a multi-step filtering processor using the MMP filter, which is designed for the well-known spatial operator respectively. We also show the superiority of our multistep filtering by extensive experiments.
Starting Page	169
Ending Page	176
File Size	1453340
Page Count	8
File Format	PDF
ISBN	0769500846
DOI	10.1109/DASFAA.1999.765749
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-04-21
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Filtering Spatial filters Nonlinear filters Query processing Geographic Information Systems Degradation Laboratories Telecommunications Electronic mail Face
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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