NDLI: Hierarchical distributed data classification inwireless sensor networks

Content Provider	IEEE Xplore Digital Library
Author	Xu Cheng Ji Xu Jian Pei Jiangchuan Liu
Copyright Year	2009
Description	Author affiliation: School of Computing Science, Simon Fraser University, British Columbia, Canada (Xu Cheng; Ji Xu; Jian Pei; Jiangchuan Liu)
Abstract	Wireless sensor networks promise an unprecedented opportunity to monitor physical environments via inexpensive wireless embedded devices. Given the sheer amount of sensed data, efficient classification of them becomes a critical task in many sensor network applications. The large scale and the stringent energy constraints of such networks however challenge the conventional classification techniques that demand enormous storage space and centralized computation. In this paper, we propose a novel hierarchical distributed classification approach, in which local classifiers are built by individual sensors and merged along the routing path. The classifiers are iteratively enhanced by combining strategically generated pseudo data and new local data, eventually converging to a global classifier for the whole network. We demonstrate that our approach maintains high classification accuracy with very low storage and communication overhead. It also addresses a critical issue of heterogeneous data distribution among the sensors.
Starting Page	10
Ending Page	19
File Size	10897882
Page Count	10
File Format	PDF
ISBN	9781424451135
DOI	10.1109/MOBHOC.2009.5336999
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-10-12
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature sensors Wireless sensor networks Base stations Animals Wildlife Training data Sensor phenomena and characterization Computer networks Distributed computing Monitoring
Content Type	Text
Resource Type	Article

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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
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