Computer scienceData scienceMachine learningClassificationDecision tree learning

ID3 algorithm

Entropy

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Select the correct formula for finding entropy.

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E(X)=∑_{i=1}^n​ p(x_i​)log_2(\frac{1}{p(x_i​)}​)

E(X)=∑_{i=1}^n​ p(x_i​)log_2(p(x_i​)​)

E(X)=∑_{i=1}^n​ log_2(p(x_i​)​)

E(X)=∑_{i=1}^n​ \frac{log_2(p(x_i​)​)}{p(x_i​)}

E(X)=∑_{i=1}^n​ log_2(\frac{1}{p(x_i​)}​)

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