Data Science – What Are Attribute Selection Measures In A Decision Tree ?


Data Science – What Are Attribute Selection Measures Used In Decision Tree ?

Table Of Contents:

  1. Entropy.
  2. Information Gain.
  3. Gini Index.
  4. Gain Ratio.
  5. Chi – Square Test.
  6. Reduction In Variance.

(1) Entropy:

(2) Information Gain

(3) What Is Gini Index ?

Why We Do Square Of Probability ?

Why We Do Square Of Probability ?

(4) What Is The Issue With Information Gain ?

(5) What Is Gain Ratio ?

Example:

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