Dr. Sue Liu

Senior Machine Learning Engineer at UserTesting

Expertise: Data science and machine learning

Education: University of Cambridge; University of Edinburgh

Senior machine learning engineer at UserTesting

1 Article

Sue Liu Sue Liu
Updated on September 02, 2025

The Dirichlet Distribution: What Is It and Why Is It Useful?

The Dirichlet distribution is a multivariate probability distribution that models vectors of non-negative values summing to one, commonly used as a prior for categorical and multinomial variables in Bayesian statistics.

Image: Shutterstock / Built In