# قسم الرياضيات و الإعلام الإلي

www.univ-soukahras.dz/ar/dept/mi

المقياس: Apprentissage automatique II

1. معلومات
2. الأسئلة
3. التعليم عن بعد

## Decision tree splitting construction !

 0 votes When should we stop splitting in the Dtree construction ? نشر على 01:13, الأحد 8 ماي 2016 By abdelghani laib (77 points) In Apprentissage automatique II

أجوبة (3)

### جواب (1)

 0 votes Good Question ! نشر على 07:45, الأحد 8 ماي 2016 by Imed BOUCHRIKA In Apprentissage automatique II

### جواب (2)

 0 votes decision trees use multiple algorithms to decide to split a node in two or more sub-nodes,in other words, we can say that purity of the node increases with respect to the target variable. Decision tree splits the nodes on all available variables and then selects the split which results in most homogeneous نشر على 19:06, الخميس 12 ديس 2019 by noussaiba ledjemel (23 points) In Apprentissage automatique II

### جواب (3)

 0 votes A tree is built by dividing the source set, constituting the root node of the tree, into subsets - which constitute the successor children. Splitting is based on a set of splitting rules based on classification characteristics. This process is repeated on each derived subset in a recursive manner called recursive partitioning. Recursion is complete when the subset at the node level all has the same values ​​of the target variable, or when the splitting no longer adds any value to the predictions. نشر على 21:52, الجمعة 3 ينا 2020 by sihem djélamda (9 points) In Apprentissage automatique II

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