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KEEL-dataset - data set description
dataset/images/ring.png



This section describes main characteristics of the ring data set and its attributes:

General information

Ringnorm data set
TypeClassificationOriginLaboratory
Features 20(Real / Integer / Nominal)(20 / 0 / 0)
Instances7400 Classes2
Missing values?No

Attribute description

AttributeDomainAttributeDomain
A1[-6879.0, 6285.0]A11[-7803.0, 7208.0]
A2[-7141.0, 6921.0]A12[-7395.0, 6791.0]
A3[-7734.0, 7611.0]A13[-7096.0, 6403.0]
A4[-6627.0, 7149.0]A14[-7472.0, 7261.0]
A5[-7184.0, 6383.0]A15[-7342.0, 7372.0]
A6[-6946.0, 6743.0]A16[-7121.0, 6905.0]
A7[-7781.0, 6285.0]A17[-7163.0, 7175.0]
A8[-6882.0, 6357.0]A18[-8778.0, 6896.0]
A9[-7184.0, 7487.0]A19[-7554.0, 5726.0]
A10[-7232.0, 6757.0]A20[-6722.0, 7627.0]
Class{0, 1}

Additional information

This is a 20 dimensional, 2 class classification problem. Each class is drawn from a multivariate normal distribution. Class 1 has mean zero and covariance 4 times the identity. Class 2 has mean (a,a,..a) and unit covariance. a = 2/sqrt(20).




In this section you can download some files related to the ring data set:

  • The complete data set already formatted in KEEL format can be downloaded from herezip.gif.
  • A copy of the data set already partitioned by means of a 10-folds cross validation procedure can be downloaded from herezip.gif.
  • A copy of the data set already partitioned by means of a 5-folds cross validation procedure can be downloaded from herezip.gif.
  • The header file associated to this data set can be downloaded from heretxt.png.
  • This is not a native data set from the KEEL project. It has been obtained from the DELVE repository. The original page where the data set can be found is: http://www.cs.utoronto.ca/~delve/data/ringnorm/desc.html.


 
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