desicion tree (gini index) algoritmi numeric attribut uchun

desicion tree (gini index) algoritmi numeric attribut uchun qaraladigan asosiy shartlar: 1. berilgan data set numeric attribut saralanadi o’sish tartibi bo’yicha . 2. saralangan data set classi o’zgarmagan holda saralanadi . 3. classlari har xil bo’lgan joydan bo’laklarga ajratib ishlaymiz. misollarda ko’p uchraydigan entropyni wolfram alpha saytidan yechish mumkin logarifmik ifodalarni . ibs = info(7,7) = entropy(1/2,1/2) = 1 hisoblangan infogain larning eng kattasi natija sifatida qaraladi va undan keyin quyidagi chizma chiziladi . mustaqil yechish uchun masalalar. 1. quyidagi data setdan foydalangan holda d-attribut ustuni bo’yicha desicion tree (gini index) algoritmiga asosan yeching . n% a-atribut b-atribut c-atribut d-atribut e-atribut class 1 17 5 a 9 a yes 2 3 26 b 30 a no 3 15 9 c...

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