David Blei

Last updated
David M. Blei
NationalityAmerican
Alma mater Brown University B.S. (1997)
University of California, Berkeley Ph.D. (2004)
Known for Topic models
Awards PECASE
ACM Fellow (2015)
Scientific career
Fields Artificial Intelligence
Institutions Princeton University
Columbia University
Thesis Probabilistic Models of Text and Images  (2004)
Doctoral advisor Michael I. Jordan
Website www.cs.columbia.edu/~blei/

David Meir Blei is a professor in the Statistics and Computer Science departments at Columbia University. Prior to fall 2014 he was an associate professor in the Department of Computer Science at Princeton University. His work is primarily in machine learning.

Contents

Research

His research interests include topic models and he was one of the original developers of latent Dirichlet allocation, along with Andrew Ng and Michael I. Jordan. As of June 18, 2020, his publications have been cited 109,821 times, giving him an h-index of 97. [1]

Honors and awards

Blei received the ACM Infosys Foundation Award in 2013. (This award is given to a computer scientist under the age of 45. It has since been renamed the ACM Prize in Computing.) He was named Fellow of ACM "For contributions to the theory and practice of probabilistic topic modeling and Bayesian machine learning" in 2015. [2]

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In machine learning and natural language processing, the pachinko allocation model (PAM) is a topic model. Topic models are a suite of algorithms to uncover the hidden thematic structure of a collection of documents. The algorithm improves upon earlier topic models such as latent Dirichlet allocation (LDA) by modeling correlations between topics in addition to the word correlations which constitute topics. PAM provides more flexibility and greater expressive power than latent Dirichlet allocation. While first described and implemented in the context of natural language processing, the algorithm may have applications in other fields such as bioinformatics. The model is named for pachinko machines—a game popular in Japan, in which metal balls bounce down around a complex collection of pins until they land in various bins at the bottom.

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References

  1. "David Blei - Google Scholar Citations". scholar.google.com. Retrieved 2020-06-18.
  2. "ACM Fellows Named for Computing Innovations that Are Advancing Technology in the Digital Age". ACM. 8 December 2015. Archived from the original on 9 December 2015. Retrieved 9 December 2015.