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scikit-learn Cookbook

scikit-learn Cookbook - Third Edition

By : John Sukup
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scikit-learn Cookbook

scikit-learn Cookbook

By: John Sukup

Overview of this book

Trusted by data scientists, ML engineers, and software developers alike, scikit-learn offers a versatile, user-friendly framework for implementing a wide range of ML algorithms, enabling the efficient development and deployment of predictive models in real-world applications. This third edition of scikit-learn Cookbook will help you master ML with real-world examples and scikit-learn 1.5 features. This updated edition takes you on a journey from understanding the fundamentals of ML and data preprocessing, through implementing advanced algorithms and techniques, to deploying and optimizing ML models in production. Along the way, you’ll explore practical, step-by-step recipes that cover everything from feature engineering and model selection to hyperparameter tuning and model evaluation, all using scikit-learn. By the end of this book, you’ll have gained the knowledge and skills needed to confidently build, evaluate, and deploy sophisticated ML models using scikit-learn, ready to tackle a wide range of data-driven challenges. *Email sign-up and proof of purchase required
Table of Contents (17 chapters)
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Gradient Boosted Machines

Gradient boosting machines (GBMs) are advanced ensemble techniques that sequentially build and combine weak prediction models, typically decision trees, to produce a stronger predictive performance. Unlike random forests, GBMs construct trees one at a time, each aiming to minimize errors from previous models. Another way to think about this is while random forests build a collection of decision trees in parallel, GBMs build them sequentially. This is where the term boosting comes from: we try to boost the predictive performance of each successive tree. This iterative approach can significantly enhance accuracy, making GBMs highly effective for various machine learning tasks. This recipe will introduce GBMs as another ensemble approach for ML modeling.

Getting ready

We will use scikit-learn to illustrate how to create a gradient boosting classifier.

  1. Load the libraries:

    import numpy as np
    import pandas as pd
    from sklearn.datasets import load_iris
    from sklearn...
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