A System for Outlier Detection of High Dimensional Data

Provided by: Interscience Open Access Journals
Topic: Data Management
Format: PDF
In high dimensional data large no of outliers are embedded in low dimensional subspaces known as projected outliers, but most of existing outlier detection techniques are unable to find these projected outliers, because these methods perform detection of abnormal patterns in full data space. So, outlier detection in high dimensional data becomes an important research problem. In this paper the authors are proposing an approach for outlier detection of high dimensional data. Here they are modifying the existing SPOT approach by adding three new concepts namely adaption of sparse Sub-Space Template (SST), different combination of PCS parameters and set of non outlying cells for testing data set.

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