Reservoir sampling is a family of algorithms used to randomly select k items from a population of unknown size n. It requires only one pass over the population and does not require all n items to fit into main memory. The algorithm cannot look back at previous items, but must be able to extract a random sample without replacement at any point.
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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