A Data Set T Is Split Into Two Subsets Tsub1sub And Tsub2sub #487
A data set T is split into two subsets T<sub>1</sub> and T<sub>2</sub> with sizes N<sub>1</sub> and N<sub>2</sub>. And Gini index of the split data contains examples from N classes. Then the Gini index of T is defined by which of the following options?
This multiple choice question (MCQ) is related to the book/course
gs gs126 Neural Networks.
It can also be found in
gs gs126 Decision Trees - Random Forest Algorithm - Quiz No.1.
A data set T is split into two subsets T1 and T2 with sizes N1 and N2. And Gini index of the split data contains examples from N classes. Then the Gini index of T is defined by which of the following options?
Ginisplit (T) = \(\frac {N_2}{N}\) gini (T1) + \(\frac {N_1}{N}\) gini (T2)
Ginisplit (T) = \(\frac {N}{N_1}\) gini (T1) + \(\frac {N}{N_2}\) gini (T2)
Ginisplit (T) = \(\frac {N}{N_2}\) gini (T1) + \(\frac {N}{N_1}\) gini (T2)
Ginisplit (T) = \(\frac {N_1}{N}\) gini (T1) + \(\frac {N_2}{N}\) gini (T2)
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