Random sampling is a standard technique for constructing (approximate) histograms for query optimization. However, any real implementation in commercial products requires solving the hard problem of ...

This code implements sequential and parallel methods for weighted random sampling, as described in our eponymous paper: Hübschle-Schneider, L., & Sanders, P. (2019). Parallel Weighted Random Sampling.

Reservoir sampling is a family of randomized algorithms for randomly choosing a sample of k items from a list S containing n items, where n is either a very large or unknown number. Typically n is ...

Ali Hussain has a background that consists of a career in finance with large financial institutions and in journalism covering business. Vikki Velasquez is a researcher and writer who has managed, ...