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Possible Forms of "Pointwise" Rules




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We present the expert knowledge in natural language form, then in the corresponding production rules form for the Palni hills (India).

Note that the expert knowledge may be obtained by "machine learning" from the given samples of each class and presented to the expert for acknowledgement. Let us remember the knowledge about the nine vegetation classes considered in the special example of Palni hills :


Class

 
 
Rules

  
 1

only (top of ridges or bottom of valleys) and (altitude higher than 1850 m)

      
2

only (altitude from 900 to 1700m) and (plateau)

      
3

principally (altitude from 500 to 1000m) and (plateau)


4

 only (altitude from 900 and 1800m) and (abrupt slopes near 80%)

      
5

principally (altitude from 1000 to 1600m) and (medium slopes or top of ridges)

    
6

only (altitude higher than 1800m) and (plateau)

      
7

only (altitude less than 300m) and (irrigable zone)


8

only (altitude less than 300m) and (near roads)

     
9

principally (altitude less than 300m) and (near roads)



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