Weighted Domain Transfer Extreme Learning Machine and Its Online Version for Gas Sensor Drift Compensation in E-Nose Systems

Algorithm 4

Online Domain Transfer Extreme Learning Machine update.

Input:

  the output weight matrix of ELM for target domain;

  the number of hidden layer neurons;

  the intermediate result;

  the labeled samples;

  the increment of unlabeled samples;

Output:

  the updated output weight matrix;

  the updated intermediate result;

(1) Calculate the hidden layer output for as ;

(2) Calculate the hidden layer output for as ;

(3) if the rows of then

(4) Calculate using (21);

(5) Calculate using (22);

(6) else

(7) Calculate using (26);

(8) Calculate using (27);

(9) end if

(10) return ;