Count–min sketches are a probabilistic data structure used to store frequency tables of events in a stream of data. They use hash functions and sub-linear space, but may overcount some events due to collisions. It was invented in 2003 by Cormode and Muthukrishnan and is similar to counting Bloom filters from 1998.
Stanford University
Spring 2022
CS 168 provides a comprehensive introduction to modern algorithm concepts, covering hashing, dimension reduction, programming, gradient descent, and regression. It emphasizes both theoretical understanding and practical application, with each topic complemented by a mini-project. It's suitable for those who have taken CS107 and CS161.
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