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Anomalies in multidimensional contexts

  • Neil Dunstan
  • , Ioan Despi
  • , Charles R Watson

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper investigates the problem of presenting anomalies in a multidimensional data set. In such a data set, some dimensions may be merely descriptive, while others represent measures and attribute values used to determine whether the data is anomalous. A data cube of the descriptive dimensions is used as a data structure to partition the data set into sub-groups at each note, or context. It is shown that it is possible for a datum to be anomalous in more than one context. Previous work has dealt with this problem by embedding exception indicators in the data cube. Since the data cube is potentially large and anomalies are rare, searching for anomalies is inconvenient. Instead, it is proposed to construct a report for each anomaly that shows its status in each possible context. This results in a direct presentation of anomalous data.
Original languageEnglish
Title of host publicationData Mining X: Data Mining, Detection and other Security Technologies - Proceedings of Data Mining 2009: the 10th International Conference on Data Mining, Detection, Protection and Security
EditorsA Zanasi, N F F Ebecken, C A Brebbia
Place of PublicationSouthampton, United Kingdom
PublisherWIT Press
Pages173-182
ISBN (Print)9781845641849
Publication statusPublished - 2009
EventData Mining 2009: 10th International Conference on Data Mining, Detection, Protection and Security - Royal Mare Village, Crete, Greece
Duration: 27 May 200929 May 2009

Conference

ConferenceData Mining 2009: 10th International Conference on Data Mining, Detection, Protection and Security
CityCrete, Greece
Period27/05/0929/05/09

Keywords

  • Pattern Recognition and Data Mining

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