# Uses of Package
org.apache.datasketches.frequencies

Packages that use org.apache.datasketches.frequencies
Package
Description
org.apache.datasketches.frequencies
This package contains the implementations of the paper https://arxiv.org/abs/1705.07001.

Classes in org.apache.datasketches.frequencies used by org.apache.datasketches.frequencies
Class
Description
ErrorType
Specifies one of two types of error regions of the statistical classification Confusion Matrix that can be excluded from a returned sample of Frequent Items.
FrequentItemsSketch
This sketch is based on the paper https://arxiv.org/abs/1705.07001 ("A High-Performance Algorithm for Identifying Frequent Items in Data Streams" by Daniel Anderson, Pryce Bevan, Kevin Lang, Edo Liberty, Lee Rhodes, and Justin Thaler) and is useful for tracking approximate frequencies of items of type <T> with optional associated counts (<T> item, long count) that are members of a multiset of such items.
FrequentItemsSketch.Row
Row class that defines the return values from a getFrequentItems query.
FrequentLongsSketch
This sketch is based on the paper https://arxiv.org/abs/1705.07001 ("A High-Performance Algorithm for Identifying Frequent Items in Data Streams" by Daniel Anderson, Pryce Bevan, Kevin Lang, Edo Liberty, Lee Rhodes, and Justin Thaler) and is useful for tracking approximate frequencies of long items with optional associated counts (long item, long count) that are members of a multiset of such items.
FrequentLongsSketch.Row
Row class that defines the return values from a getFrequentItems query.