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Decision trees
Decision trees are supervised learning algorithms used in decision making by representing data as trees upside-down with their roots at the top. The following is a graphical representation of a decision tree:
![](https://epubservercos.yuewen.com/EA05D4/19470392208878206/epubprivate/OEBPS/Images/Chapter_207.jpg?sign=1734456107-MDmNOudaAnkJCZiQC65iGHYeHYc2vHNA-0-0b7ace07f728fb8ed4e17a0c3cf73b4e)
Data is represented thanks to the Iterative Dichotomiser 3 algorithm. Decision trees used in classification and regression problems are called CARTs. They were introduced by Leo Breiman.