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An Indexing Method to Construct Unbalanced Layers for High-Dimensional Data in Mobile Environments
Joint Authors
Ihm, Sun-Young
Hur, Jae-Hee
Park, Young-Ho
Source
Wireless Communications and Mobile Computing
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-11-20
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Information Technology and Computer Science
Abstract EN
A top-k query processing is widely used in many applications and mobile environments.
An index is used for efficient query processing and layer-based indexing methods are representative to perform the top-k query processing efficiently.
However, the existing methods have a problem of high index building time for multidimensional and large data; thus, it is difficult to use them.
In this paper, we proposed a new concept of constructing layer-based index, which is called unbalanced layer (UB-Layer).
The existing methods construct a layer as a balanced layer with outermost data and wrap the rest of the input data.
However, UB-Layer constructs a layer as an unbalanced layer that does not wrap the rest of the data.
To construct UB-Layer, we fist divide the dimension of the input data into divided-dimensional data and compute the convex hull in each divided-dimensional data.
And then, we combine divided-convex hull to build UB-Layer.
We also propose UB-SelectAttribute algorithm for dividing the dimension with major attributes.
We demonstrate the superiority of the proposed methods by the performance experiments.
American Psychological Association (APA)
Ihm, Sun-Young& Hur, Jae-Hee& Park, Young-Ho. 2017. An Indexing Method to Construct Unbalanced Layers for High-Dimensional Data in Mobile Environments. Wireless Communications and Mobile Computing،Vol. 2017, no. 2017, pp.1-13.
https://search.emarefa.net/detail/BIM-1206322
Modern Language Association (MLA)
Ihm, Sun-Young…[et al.]. An Indexing Method to Construct Unbalanced Layers for High-Dimensional Data in Mobile Environments. Wireless Communications and Mobile Computing No. 2017 (2017), pp.1-13.
https://search.emarefa.net/detail/BIM-1206322
American Medical Association (AMA)
Ihm, Sun-Young& Hur, Jae-Hee& Park, Young-Ho. An Indexing Method to Construct Unbalanced Layers for High-Dimensional Data in Mobile Environments. Wireless Communications and Mobile Computing. 2017. Vol. 2017, no. 2017, pp.1-13.
https://search.emarefa.net/detail/BIM-1206322
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1206322