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Outlier Discovery: Deviation-Based Approach
- Identifies outliers by examining the main characteristics of objects in a group
- Objects that “deviate” from this description are considered outliers
- Sequential exception technique
- simulates the way in which humans can distinguish unusual objects from among a series of supposedly like objects
- OLAP data cube technique
- uses data cubes to identify regions of anomalies in large multidimensional data
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