Intro to Passkeys and the State of Passwordless.pptx
DecisionTreeClassification (1).pptx
1. Decision Tree Classification (DTC)
• What is Decision Tree Classification (DTC)
• How does the DTC work
• The Issue of Overfitting; how to tackle it
• How do we optimize a Decision Tree:
Pruning: parameters used in Pruning
• How to decide most effective query:
Feature/ Attribute Importance Analysis
• Applications / Use
2. Decision Tree Classification
It is a Supervised Learning algorithm
Based on evaluating and maximizing
information gain from developing classes based
on various properties of the attributes
used for classification and regression modeling.
Regression is a method used for predictive
modeling,
so these trees are used to either classify data or
predict what will come next.
The name is derived from the similarity of the
pictorial representation of a Decision Tree
algorithm with a real tree with its root upside-
down tree, and branches off to demonstrate
various outcomes.
6. What is Decision Tree Classification
https://www.coursera.org/articles/decision-tree-machine-learning
7. What is Decision Tree Classification
https://www.coursera.org/articles/decision-tree-machine-learning
8. What is Decision Tree Classification
https://www.coursera.org/articles/decision-tree-machine-learning
9. What is Decision Tree Classification
https://www.coursera.org/articles/decision-tree-machine-learning
10. What is Decision Tree Classification
https://www.coursera.org/articles/decision-tree-machine-learning
11. The Case of Over-fitting
https://www.coursera.org/articles/decision-tree-machine-learning
12. The Case of Over-fitting
https://www.coursera.org/articles/decision-tree-machine-learning
13. How to tackle Over-fitting: Pruning
Pre-pruning
Post-Pruning
The Decision Tree module of the scikit-learn,
implements only Prepruning
Pre-pruning parameters in DecisionTreeClassifier has
3 pre-pruning parameters:
max_depth
Max_leaf_nodes
Min_samples_leaf
https://www.coursera.org/articles/decision-tree-machine-learning
14. The Case of Over-fitting
https://www.coursera.org/articles/decision-tree-machine-learning