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When we remove sub-nodes of a decision node,You can say opposite process of splitting.
Un Splitting
de splitting
Pruning
Gini
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It is a process of dividing a node into two or more sub-nodes.
Un Splitting
Splitting
Pruning
Gini
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When a sub-node splits into further sub-nodes, then it is called
Decision Node
Splitting
Pruning
Terminal Node
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Nodes that can't be splitted are
Decision Nodes
Terminal Nodes
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Decision Tree Algorithm can be used for
Classification
Regression
Both
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The Score that represnts how good split is
R square Score
Gini Score
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if our label is " Playing Cricket "
and in Split On Gender if we have got
100% of Females Don't play Cricket
it means ............. for this split
Gini will be Very Low
Gini will be Very High