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Summary

Over 4.1 million continuous ratings (-10.00 to +10.00) of 100 jokes from 73,421 users: collected between April 1999 - May 2003

License
unknown (from UCI repository)
Dependencies
Tags
collaborative-filtering jester
Attribute Types
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# Instances: 73421 / # Attributes: 101
HDF5 (56.3 MB) XML CSV ARFF LibSVM Matlab Octave

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Original Data Format
h5
Name
jester-data-1
Version mldata
0
Comment

CSV

Names
int0,double1,double2,double3,double4,double5,double6,double7,double8,double9,
Data (first 10 data points)
    int0 doub... doub... doub... doub... doub... doub... doub... doub... doub... ...
    74 -7.82 8.79 -9.66 -8.16 -7.52 -8.5 -9.85 4.17 -8.98 ...
    100 4.08 -0.29 6.36 4.37 -2.38 -9.66 -0.73 -5.34 8.88 ...
    49 99.0 99.0 99.0 99.0 9.03 9.27 9.03 9.27 99.0 ...
    48 99.0 8.35 99.0 99.0 1.8 8.16 -2.82 6.21 99.0 ...
    91 8.5 4.61 -4.17 -5.39 1.36 1.6 7.04 4.61 -0.44 ...
    100 -6.17 -3.54 0.44 -8.5 -7.09 -4.32 -8.69 -0.87 -6.65 ...
    47 99.0 99.0 99.0 99.0 8.59 -9.85 7.72 8.79 99.0 ...
    100 6.84 3.16 9.17 -6.21 -8.16 -1.7 9.27 1.41 -5.19 ...
    100 -3.79 -3.54 -9.42 -6.89 -8.74 -0.29 -5.29 -8.93 -7.86 ...
    72 3.01 5.15 5.15 3.01 6.41 5.15 8.93 2.52 3.01 ...
    ... ... ... ... ... ... ... ... ... ... ...
Description

Format:

Ratings are real values ranging from -10.00 to +10.00 (the value "99" corresponds to "null" = "not rated"). One row per user The first column gives the number of jokes rated by that user. The next 100 columns give the ratings for jokes 01 - 100. The sub-matrix including only columns {5, 7, 8, 13, 15, 16, 17, 18, 19, 20} is dense. Almost all users have rated those jokes (see discussion of "universal queries" in Eigentaste: A Constant Time Collaborative Filtering Algorithm. Ken Goldberg, Theresa Roeder, Dhruv Gupta, and Chris Perkins. Information Retrieval, 4(2), 133-151. July 2001.).

URLs
http://eigentaste.berkeley.edu/dataset/
Publications
    Data Source
    http://eigentaste.berkeley.edu/dataset/
    Measurement Details
    Usage Scenario
    revision 1
    by kidzik on 2011-09-13 13:24

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