How does Random Forest work? Why is it better than a single decision tree?

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Use python machine learning.

 

Answer the following questions:

1. How does Random Forest work? Why is it better than a single decision tree?

2. Why is Random Forest better than a single decision tree? How does it decrease model error? How does it affect bias and virance?

3. What is Bagging?

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Random Forest is an ensemble learning method that generates multiple decision trees and combines their predictions to make a final classification or regression prediction. The idea behind Random Forest is to create multiple decision trees and let them vote to make a final prediction, rather than relying on a single decision tree, which can be prone to overfitting or underfitting the data.

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