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KEEL-dataset - data set description
dataset/images/twonorm.gif



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

General information

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

Attribute description

AttributeDomainAttributeDomain
A1[-4.2497, 3.5782]A11[-3.9204, 4.0953]
A2[-3.9606, 4.3451]A12[-3.8262, 4.3025]
A3[-4.4798, 4.4039]A13[-3.9451, 3.7817]
A4[-3.8891, 4.2589]A14[-3.8516, 4.1238]
A5[-3.9099, 5.6395]A15[-3.6978, 3.5485]
A6[-4.0095, 3.9901]A16[-3.6976, 4.2439]
A7[-3.7334, 4.4522]A17[-3.9428, 3.7233]
A8[-4.5744, 3.8648]A18[-4.0653, 4.0557]
A9[-3.8136, 4.254]A19[-4.1218, 4.3238]
A10[-4.1999, 4.0829]A20[-3.7831, 4.279]
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 (a,a,..a) while Class 2 has mean (-a,-a,..-a).. a = 2/sqrt(20).




In this section you can download some files related to the twonorm 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/twonorm/desc.html.


 
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