Types of Outliers (II) Collective Outliers
{"Image DocumentName": "Types of Outliers (II) Collective Outliers", "Image ImageDescription": "A subset of data objects collectively deviate significantly from the whole data set, even if the individual data objects may not be outliers. Applications: E.g., intrusion detection: When a number of computers keep sending denial-of-service packages to each other. Collective Outlier. Detection of collective outliers. Consider not only behavior of individual objects, but also that of groups of objects. Need to have the background knowledge on the relationship among data objects, such as a distance or similarity measure on objects. A data set may have multiple types of outlier. One object may belong to more than one type of outlier. 6.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}