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James Bergstra

First author of the Hyperopt paper and co-developer of Theano; former Research Scholar at Harvard

James Bergstra co-developed Theano, an open-source optimizing compiler that can use GPUs, and is first author of "Hyperopt: a Python library for model selection and hyperparameter optimization" (2015); the Hyperopt project's BSD-style license names Bergstra as copyright holder. A 2012 University of British Columbia talk listing described Bergstra as a Research Scholar at Harvard University in David Cox's biological and computer vision group at the Rowland Institute, with research including hyperparameter optimization. Bergstra was then a postdoc at the University of Waterloo's Centre for Theoretical Neuroscience and a co-author of the paper "Nengo: A Python tool for building large-scale functional brain models" (2014).1235

Work

  • Hyperopt (external site: github.com)Open-source code

    First author of "Hyperopt: a Python library for model selection and hyperparameter optimization" (2015), as listed on the University of Waterloo profile; the project's BSD-style license names James Bergstra as copyright holder.25

  • Theano (external site: github.com)Open-source code

    Co-developed Theano, according to the University of Waterloo profile, and co-author of "Theano: new features and speed improvements" (2012).234

Other documented roles

Roles the sources document but that are not confirmed as current.

  • Research Scholar, David Cox's biological and computer vision group at the Rowland Institute, Harvard University12
  • Postdoc, Centre for Theoretical Neuroscience, University of Waterloo2

This profile covers public professional work only, from the sources below. It is not an endorsement or a ranking. To correct or remove it, use the correction form.

Sources · reviewed Oct 13, 2026

  1. 1.
    James Bergstra of Harvard — Grid Search is a Bad Hyper-parameter Optimization Algorithm (UBC Computer Science event, 2012) (external site: cs.ubc.ca)

    University of British Columbia, Department of Computer Science · Official page · published Jul 17, 2012 · accessed Oct 13, 2026

  2. 2.
  3. 3.
    Theano: new features and speed improvements (arXiv 1211.5590) (external site: arxiv.org)

    arXiv · Paper · published Nov 23, 2012 · accessed Oct 13, 2026

  4. 4.
  5. 5.
    hyperopt/hyperopt LICENSE.txt (BSD-style) (external site: github.com)

    hyperopt (GitHub repository) · License · accessed Oct 13, 2026

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