Book Image

Mastering Predictive Analytics with scikit-learn and TensorFlow

By : Alvaro Fuentes
Book Image

Mastering Predictive Analytics with scikit-learn and TensorFlow

By: Alvaro Fuentes

Overview of this book

Python is a programming language that provides a wide range of features that can be used in the field of data science. Mastering Predictive Analytics with scikit-learn and TensorFlow covers various implementations of ensemble methods, how they are used with real-world datasets, and how they improve prediction accuracy in classification and regression problems. This book starts with ensemble methods and their features. You will see that scikit-learn provides tools for choosing hyperparameters for models. As you make your way through the book, you will cover the nitty-gritty of predictive analytics and explore its features and characteristics. You will also be introduced to artificial neural networks and TensorFlow, and how it is used to create neural networks. In the final chapter, you will explore factors such as computational power, along with improvement methods and software enhancements for efficient predictive analytics. By the end of this book, you will be well-versed in using deep neural networks to solve common problems in big data analysis.
Table of Contents (7 chapters)

Introduction to hyperparameter tuning

The method used to choose the best estimators for a particular dataset or choosing the best values for all hyperparameters is called hyperparameter tuning. Hyperparameters are parameters that are not directly learned within estimators. Their value is decided by the modelers.

For example, in the RandomForestClassifier object, there are a lot of hyperparameters, such as n_estimators, max_depth, max_features, and min_samples_split. Modelers decide the values for these hyperparameters.

Exhaustive grid search

One of the most important and generally-used methods for performing hyperparameter tuning is called the exhaustive grid search. This is a brute-force approach because it tries all of...