Statistics for characterizing data on the periphery

We introduce a class of statistics for characterizing the periphery of a distribution, and show that these statistics are particularly valuable for problems in target detection. Because so many detection algorithms are rooted in Gaussian statistics, we concentrate on ellipsoidal models of high-dimen...

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Bibliographische Detailangaben
Hauptverfasser: Theiler, J, Hush, D
Format: Tagungsbericht
Sprache:eng
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Zusammenfassung:We introduce a class of statistics for characterizing the periphery of a distribution, and show that these statistics are particularly valuable for problems in target detection. Because so many detection algorithms are rooted in Gaussian statistics, we concentrate on ellipsoidal models of high-dimensional data distributions (that is to say: covariance matrices), but we recommend several alternatives to the sample covariance matrix that more efficiently model the periphery of a distribution, and can more effectively detect anomalous data samples.
ISSN:2153-6996
2153-7003
DOI:10.1109/IGARSS.2010.5651361