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KEEL-dataset - data set description
dataset/images/sonar.jpg
Sonar, Mines vs. Rocks data set


Main Description

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

General information

Sonar, Mines vs. Rocks data set
TypeClassificationOriginReal world
Features 60(Real / Integer / Nominal)(60 / 0 / 0)
Instances208 Classes2
Missing values?No

Attribute description

AttributeDomainAttributeDomainAttributeDomain
Band1[0.0020,0.137]Band21[0.051,1.0]Band41[0.036,0.9]
Band2[0.0010,0.234]Band22[0.022,1.0]Band42[0.0060,0.825]
Band3[0.0020,0.306]Band23[0.056,1.0]Band43[0.0,0.773]
Band4[0.0060,0.426]Band24[0.024,1.0]Band44[0.0,0.776]
Band5[0.0070,0.401]Band25[0.024,1.0]Band45[0.0,0.703]
Band6[0.01,0.382]Band26[0.092,1.0]Band46[0.0,0.729]
Band7[0.0030,0.373]Band27[0.048,1.0]Band47[0.0,0.552]
Band8[0.0060,0.459]Band28[0.028,1.0]Band48[0.0,0.334]
Band9[0.0080,0.683]Band29[0.014,1.0]Band49[0.0,0.198]
Band10[0.011,0.711]Band30[0.061,1.0]Band50[0.0,0.082]
Band11[0.029,0.734]Band31[0.048,0.966]Band51[0.0,0.1]
Band12[0.024,0.706]Band32[0.04,0.931]Band52[0.0010,0.071]
Band13[0.018,0.713]Band33[0.048,1.0]Band53[0.0,0.039]
Band14[0.027,0.997]Band34[0.021,0.965]Band54[0.0010,0.035]
Band15[0.0030,1.0]Band35[0.022,1.0]Band55[0.0010,0.045]
Band16[0.016,0.999]Band36[0.0080,1.0]Band56[0.0,0.039]
Band17[0.035,1.0]Band37[0.035,0.95]Band57[0.0,0.036]
Band18[0.038,1.0]Band38[0.038,1.0]Band58[0.0,0.044]
Band19[0.049,1.0]Band39[0.037,0.986]Band59[0.0,0.036]
Band20[0.066,1.0]Band40[0.012,0.93]Band60[0.0010,0.044]
Type{R,M}

Additional information

This data set contains signals obtained from a variety of different aspect angles, spanning 90 degrees for mines and 180 degrees for rocks. Each pattern is a set of 60 numbers in the range 0.0 to 1.0, where each number represents the energy within a particular frequency band, integrated over a certain period of time. The output attribute contains the letter R if the object is a rock and M if it is a mine (metal cylinder).



Main Files and additional references

In this section you can download some files related to the sonar 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 UCI Machine Learning Repository. The original page where the data set can be found is: http://archive.ics.uci.edu/ml/datasets/Connectionist+Bench+%28Sonar%2C+Mines+vs.+Rocks%29.

 
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