Commit Graph

1 Commits (9884d06b80cb9e0a2fd0815bad86f30ff8b4111f)

Author SHA1 Message Date
Andrew Dunham b7104cde4a util/topk: add package containing a probabilistic top-K tracker
This package uses a count-min sketch and a heap to track the top K items
in a stream of data. Tracking a new item and adding a count to an
existing item both require no memory allocations and is at worst
O(log(k)) complexity.

Change-Id: I0553381be3fef2470897e2bd806d43396f2dbb36
Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
10 months ago