Amazon.com, Inc.
Time bounded lossy counters for network data

Abstract:

A lossy counter counts distinct network data items. The lossy counter includes a count sketch bounded by a predetermined value to limit the number of distinct network data items included in the count sketch. The count sketch may include counts for a set of distinct network data items. The lossy counter has an associated time interval, and the first set of distinct network data items and the second set of distinct data items include timestamps that coincide with the time interval associated with the lossy counter.