Center for Machine Learning and Intelligent Systems
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Welcome to the UC Irvine Machine Learning Repository!

We currently maintain 299 data sets as a service to the machine learning community. You may view all data sets through our searchable interface. Our old web site is still available, for those who prefer the old format. For a general overview of the Repository, please visit our About page. For information about citing data sets in publications, please read our citation policy. If you wish to donate a data set, please consult our donation policy. For any other questions, feel free to contact the Repository librarians. We have also set up a mirror site for the Repository.

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Latest News:
2013-04-04: Welcome to the new Repository admins Kevin Bache and Moshe Lichman!
2010-03-01: Note from donor regarding Netflix data
2009-10-16: Two new data sets have been added.
2009-09-14: Several data sets have been added.
2008-07-23: Repository mirror has been set up.
2008-03-24: New data sets have been added!
2007-06-25: Two new data sets have been added: UJI Pen Characters, MAGIC Gamma Telescope


Featured Data Set:  Challenger USA Space Shuttle O-Ring

Task: Regression
Data Type: Multivariate
# Attributes: 4
# Instances: 23

Task: predict the number of O-rings that experience thermal distress on a flight at 31 degrees F given data on the previous 23 shuttle flights
Newest Data Sets:
2014-10-10:
 Gas sensor array exposed to turbulent gas mixtures
2014-09-10:
 Gas sensor array under flow modulation
2014-07-30:
 AAAI 2014 Accepted Papers
2014-07-25:
 REALDISP Activity Recognition Dataset
2014-07-22:
 Perfume Data
2014-07-15:
 Newspaper and magazine images segmentation dataset
2014-06-18:
 Gesture Phase Segmentation
2014-06-12:
 Parkinson Speech Dataset with Multiple Types of Sound Recordings
2014-06-01:
 Tennis Major Tournament Match Statistics
2014-05-29:
 BlogFeedback
2014-05-20:
 StoneFlakes
2014-05-20:
 Bach Choral Harmony
Most Popular Data Sets (hits since 2007):
617781:
 Iris
431726:
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366626:
 Wine
299822:
 Car Evaluation
297746:
 Breast Cancer Wisconsin (Diagnostic)
240894:
 Abalone
198083:
 Poker Hand
197248:
 Wine Quality
178594:
 Heart Disease
169862:
 Forest Fires
154312:
 Internet Advertisements
145568:
 Yeast

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