NDLI: Probabilistic Group Nearest Neighbors query based on Voronoi diagram

Please wait, while we are loading the content...

Probabilistic Group Nearest Neighbors query based on Voronoi diagram

Content Provider	ACM Digital Library
Author	Wang, Weige Ge, Enquan Zheng, Ning Xu, Ming Xu, Jian
Abstract	In order to solve the problem of probabilistic group nearest neighbor query on uncertain data, we present an effective method based on Voronoi diagram. Probabilistic group nearest neighbor query on uncertain data is to find out the set of uncertain objects, in which each object has a higher probability to be the nearest neighbor of query set than the threshold specified by user. In this paper, first a candidate set of target objects is got by constructing the Voronoi diagram of uncertain objects and the convex hull of the set of the query points. Then further reduce the candidate set through using the space pruning algorithm. At last, calculate the probability value of each target object in the candidate set to be GNN result exactly. The uncertain objects whose probabilities greater than or equal to the user-specified threshold are put into the result set. The theoretical analysis and experiments show the effectiveness of our algorithm, which also has good performance and less query time.
Starting Page	36
Ending Page	41
Page Count	6
File Format	PDF
ISBN	9781450339735
DOI	10.1145/2835022.2835029
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2015-11-03
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Voronoi diagram Uncertain objects Probabilistic group nearest neighbor query
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