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Hands-On Automated Machine Learning
book

Hands-On Automated Machine Learning

by Sibanjan Das, Umit Mert Cakmak
April 2018
Beginner to intermediate content levelBeginner to intermediate
282 pages
6h 52m
English
Packt Publishing
Content preview from Hands-On Automated Machine Learning

Warm start

In terms of Automated ML (AutoML) pipelines, hyperparameter search space can grow really quickly and an exhaustive search becomes impracticable with limited time and finite resources. You need smarter ways to perform this task, especially if you have a large dataset with a complex model working on it. If you find yourself in this kind of situation, a GridSeachCV instances exhaustive search won't be feasible, or random parameter draws of RandomizedSearchCV might not give you the best results given limited time.

The basic idea of warm start is to use the information gained from previous training runs to identify smarter starting points for the next training run.

For example, LogisticRegression has a warm_start parameter, which is ...

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Publisher Resources

ISBN: 9781788629898Supplemental Content