Chapter

Outlier Analysis

pp 111-147

Date:

Proximity-Based Outlier Detection

  • Charu C. AggarwalAffiliated withIBM T.J. Watson Research Center

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Abstract

Proximity-based techniques define a data point as an outlier when its locality (or proximity) is sparsely populated. The proximity of a data point may be defined in a variety of ways, which are subtly different from one another but are similar enough to merit unified treatment within a single chapter.