The following flowchart can be used to decide the ensemble method that is most appropriate for a given scenario: Start * Is the goal to reduce variance or bias?    * If reducing variance, then use bagging or random forest.    * If reducing bias, then use boosting. * Is the data noisy?    * If yes, then use bagging or random forest.    * If no, then use boosting. * Is the data imbalanced?    * If yes, then use weighted averaging or stacking.    * If no, then use any of the ensemble methods. End   Are there exceptions to the flow?  Does the data play a role?

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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The following flowchart can be used to decide the ensemble method that is most appropriate for a given scenario:

Start


* Is the goal to reduce variance or bias?

   * If reducing variance, then use bagging or random forest.

   * If reducing bias, then use boosting.

* Is the data noisy?

   * If yes, then use bagging or random forest.

   * If no, then use boosting.

* Is the data imbalanced?

   * If yes, then use weighted averaging or stacking.

   * If no, then use any of the ensemble methods.


End

 

Are there exceptions to the flow?  Does the data play a role?

 

 

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