This documentation is for scikit-learn version 0.11-gitOther versions


If you use the software, please consider citing scikit-learn.

This page

About us

This is a community effort, and as such many people have contributed to it over the years.


This project was started in 2007 as a Google Summer of Code project by David Cournapeau. Later that year, Matthieu Brucher started work on this project as part of his thesis.

In 2010 Fabian Pedregosa, Gael Varoquaux, Alexandre Gramfort and Vincent Michel of INRIA took leadership of the project and made the first public release, February the 1st 2010. Since then, several releases have appeard following a ~3 month cycle, and a striving international community has been leading the development.


If I forgot anyone, do not hesitate to send me an email to and I’ll include you in the list.

Citing scikit-learn

If you use scikit-learn in scientific publication, we would appreciate citations to the following paper:

Scikit-learn: Machine Learning in Python, Pedregosa et al., JMLR 12, pp. 2825-2830, 2011.

Bibtex entry:

 title={{Scikit-learn: Machine Learning in Python }},
 author={Pedregosa, F. and Varoquaux, G. and Gramfort, A. and Michel, V.
         and Thirion, B. and Grisel, O. and Blondel, M. and Prettenhofer, P.
         and Weiss, R. and Dubourg, V. and Vanderplas, J. and Passos, A. and
         Cournapeau, D. and Brucher, M. and Perrot, M. and Duchesnay, E.},
 journal={Journal of Machine Learning Research},


INRIA actively supports this project. It has provided funding for Fabian Pedregosa to work on this project full time in the period 2010-2012. It also hosts coding sprints and other events.


Google sponsored David Cournapeau with a Summer of Code Scholarship in the summer of 2007 and Vlad Niculae in 2011. If you would like to participate in the next Google Summer of code program, please see this page

The NeuroDebian project providing Debian packaging and contributions is supported by Dr. James V. Haxby (Dartmouth College).