multiclass classification

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multiclass classification
-the one that called one-vs-all classification algorithm
classification with more than two groups

either starting from index 0 or 1 doesn't matter..

the defined algorithms earlier is to compute the binary by using logistic regression...
using one vs all algorithm for solving multiclass classification.
  • the algorithm is essentially make two groups,  with each class again the rest...and take each hypothesis(that denotes by superscript) for each class