In pattern recognition using neural network what should be the output?

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Newman - 2021-07-27T12:42:49+00:00
Question: In pattern recognition using neural network what should be the output?

Suppose I want to recognise a particular face I am extracting sift points from it and feeding it as a input vector . Then what should be the output ? I am talking during the training phase .   How are outputs decided for a particular type of input pattern?  

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    • Expert Answer

    Profile picture of Prashant Kumar Prashant Kumar answered . 2025-11-20

    % For c classification categories numbered 1:c, use a classindex row vector
     
     
     classind = [ 5 3 1 4 2  5 4 3 2 1 ]
 N  = length(classind)

    % The corresponding target matrix is obtained using the ind2vec command

     target = full(ind2vec(classind))

    % The corresponding output will be a matrix of the same size

     outind = vec2ind(output)

 err = outind ~= classind

 Nerr = sum(err)

 PctErr = 100*Nerr/N
    %Obviously, more is needed to obtain error rates for individual classes.
     
     
     


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