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

We currently maintain 211 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.

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Latest News:
03-01-2010: Note from donor regarding Netflix data
10-16-2009: Two new data sets have been added.
09-14-2009: Several data sets have been added.
07-23-2008: Repository mirror has been set up.
03-24-2008: New data sets have been added!
06-25-2007: Two new data sets have been added: UJI Pen Characters, MAGIC Gamma Telescope
04-13-2007: Research papers that cite the repository have been associated to specific data sets.


Featured Data Set:  Ionosphere

Task: Classification
Data Type: Multivariate
# Attributes: 34
# Instances: 351

Classification of radar returns from the ionosphere
Newest Data Sets:
09-13-2011:
 Amazon Access Samples
08-09-2011:
 Vertebral Column
07-27-2011:
 Vicon Physical Action Data Set
07-27-2011:
 EMG Physical Action Data Set
07-26-2011:
 OpinRank Review Dataset
07-07-2011:
 Relative location of CT slices on axial axis
06-11-2011:
 Amazon Commerce reviews set
05-22-2011:
 PEMS-SF
04-01-2011:
 Online Handwritten Assamese Characters Dataset
03-29-2011:
 PubChem Bioassay Data
Most Popular Data Sets (hits since 2007):
261147:
 Iris
190713:
 Adult
166842:
 Wine
134114:
 Breast Cancer Wisconsin (Diagnostic)
116867:
 Car Evaluation
105763:
 Abalone
98288:
 Poker Hand
80785:
 Forest Fires
71179:
 Yeast
69300:
 Bag of Words

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