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Data Repository for Machine Learning Projects

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. We have also set up a mirror site for the Repository.

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In Collaboration With:

Latest News:
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
2007-04-13: Research papers that cite the repository have been associated to specific data sets.


Featured Data Set:  Kinship 

Task:Relational-Learning
Data Type:Relational
# Attributes: 12
# Instances:104

Relational dataset
Newest Data Sets:
2011-09-13:
  Amazon Access Samples
2011-08-09:
  Vertebral Column
2011-07-27:
  Vicon Physical Action Data Set
2011-07-27:
  EMG Physical Action Data Set
2011-07-26:
  OpinRank Review Dataset
2011-07-07:
  Relative location of CT slices on axial axis
2011-06-11:
  Amazon Commerce reviews set
2011-05-22:
  PEMS-SF
2011-04-01:
  Online Handwritten Assamese Characters Dataset
2011-03-29:
  PubChem Bioassay Data
2011-03-10:
  Record Linkage Comparison Patterns
2011-03-02:
  Communities and Crime Unnormalized
Most Popular Data Sets (hits since 2007):
251840:
  Iris
184632:
  Adult
161470:
  Wine
129275:
  Breast Cancer Wisconsin (Diagnostic)
111385:
  Car Evaluation
102121:
  Abalone
95345:
  Poker Hand
78250:
  Forest Fires
68839:
  Yeast
67197:
  Internet Advertisements
67109:
  Bag of Words
62436:
  SPECT Heart

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