Interview Q&A / Machine Learning
Machine Learning interview questions
Supervised vs unsupervised learning, overfitting, metrics and the classic models, explained simply.
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- How do you stop a decision tree from overfitting?
Limit its growth (max_depth, min_samples_leaf, min_samples_split, max_leaf_nodes) or prune it afterwards with cost-complexity pruning (ccp_alpha). Choose the settings by cross-validation. Or use an ensemble such as a random forest.
BeginnerQuick answer1 min read