Avi Pfeffer’s Homepage


I am a Principal Scientist at Charles River Analytics. Charles River is a great place to work and we are often looking to hire new people, so please check us out.


Prior to joining Charles River, I was Associate Professor in the Computer Science group in the Harvard School of Engineering and Applied Sciences.


In my research, I study how to use artificial intelligence to help people become better decision makers in challenging situations – challenging meaning that they involve significant uncertainty, complexity, and a constantly changing world. More specifically, my research focuses on probabilistic reasoning and machine learning. I have been particularly interested in expressive probabilistic languages, from probabilistic relational models to probabilistic programming languages like IBAL and Figaro.

I am in the process of writing a book on probabilistic programming called "Practical Probabilistic Programming". Most of the chapters of the book are already available under Manning's Early Access Program.

A list of my publications up until about 2010 can be found here. More recent publications can be found at Charles River's website.


I live in Cambridge, Massachusetts with my wife Debby and my daughters Dina, Ruti, and Nomi.


I’m a composer of classical and electronic music. I have released Lift Up Mine Eyes And See, an album of electronic music, to raise funds and awareness for the American Jewish World Service.

Contact Information

Charles River Analytics, Inc.

625 Mount Auburn Street

Cambridge, MA 02138

Tel: 617-491-3474x513

Fax: 617-868-0780

Work email:

Personal email: