REJECTM

Trainable mapping to compute rejection threshold

     W = REJECTM(A,FRAC)
     W = A*REJECTM([],FRAC)
     W = A*REJECTM(FRAC)

Description

Train the threshold of a rejection mapping W such that a fraction FRAC of the training data A is rejected. Dataset A is usually the output of  a classifier. The mapping REJECTM will add one extra reject class.

     W = REJECTM(A,FRAC,REJNAME)

If desired, the rejected objects will be labeled REJNAME. Default is  REJNAME = 'reject'.

Example(s)

a = gendatb; % create trainingset  w = ldc(a); % create supervised classifier  wr = rejectm(a*w,0.05); % reject 5% of the data  scatterd(a); plotc(w*wr); % show

See also

reject, prroc, plote,