By a News Reporter-Staff News Editor at Information Technology Newsweekly -- Research findings on Information Systems are discussed in a new report. According to news reporting originating from Khania, Greece, by VerticalNews correspondents, research stated, "Wireless sensor networks are becoming increasingly popular for a variety of applications. Users are frequently faced with the surprising discovery that readings produced by the sensing elements of their motes are often contaminated with outliers."
Our news editors obtained a quote from the research from Technical University, "Outlier readings can severely affect applications that rely on timely and reliable sensory data in order to provide the desired functionality. As a consequence, there is a recent trend to explore how techniques that identify outlier values based on their similarity to other readings in the network can be applied to sensory data cleaning. Unfortunately, most of these approaches incur an overwhelming communication overhead, which limits their practicality. In this paper we introduce an in-network outlier detection framework, based on locality sensitive hashing, extended with a novel boosting process as well as efficient load balancing and comparison pruning mechanisms. Our method trades off bandwidth for accuracy in a straightforward manner and supports many intuitive similarity metrics."
According to the news editors, the research concluded: "Our experiments demonstrate that our framework can reliably identify outlier readings using a fraction of the bandwidth and energy that would otherwise be required."
For more information on this research see: In-network approximate computation of outliers with quality guarantees. Information Systems, 2013;38(8):1285-1308. Information Systems can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. (Elsevier - www.elsevier.com; Information Systems - www.elsevier.com/wps/product/cws_home/236)
The news editors report that additional information may be obtained by contacting N. Giatrakos, Technical Univ Crete, Dept. of Elect & Comp Engn, GR-73100 Khania, Greece. Additional authors for this research include Y. Kotidis, A. Deligiannakis, V. Vassalos and Y. Theodoridis.
Keywords for this news article include: Khania, Greece, Europe, Information Systems
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