Clustering elliptical anomalies in sensor networks

James C. Bezdek, Timothy C. Havens, James M. Keller, Chris Leckie, Laurence Park, Marimuthu Palaniswami, Sutharshan Rajasegarar

Research output: Chapter in Book / Conference PaperConference Paperpeer-review

12 Citations (Scopus)

Abstract

We model anomalies in wireless sensor networks with ellipsoids that represent node measurements. Elliptical anomalies (EAs) are level sets of ellipsoids, and classify them as type 1, type 2 and higher order anomalies. Three measures of (dis)similarity between pairs of ellipsoids convert model ellipsoids into dissimilarity data. Clusters in the dissimilarity data may correspond to normal and anomalous measurements and nodes in the network. Assessment of (clustering) tendency is facilitated by visual inspection of (VAT/iVAT) images. Two examples illustrate the potential for anomaly detection.

Original languageEnglish
Title of host publication2010 IEEE World Congress on Computational Intelligence, WCCI 2010
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event2010 6th IEEE World Congress on Computational Intelligence, WCCI 2010 - Barcelona, Spain
Duration: 18 Jul 201023 Jul 2010

Publication series

Name2010 IEEE World Congress on Computational Intelligence, WCCI 2010

Conference

Conference2010 6th IEEE World Congress on Computational Intelligence, WCCI 2010
Country/TerritorySpain
CityBarcelona
Period18/07/1023/07/10

Keywords

  • Anomaly detection
  • Elliptical similarity
  • Visual assessment of clustering tendency
  • Wireless sensor networks

Fingerprint

Dive into the research topics of 'Clustering elliptical anomalies in sensor networks'. Together they form a unique fingerprint.

Cite this