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Scala for Machine Learning, Second Edition

You're reading from   Scala for Machine Learning, Second Edition Build systems for data processing, machine learning, and deep learning

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Product type Paperback
Published in Sep 2017
Publisher Packt
ISBN-13 9781787122383
Length 740 pages
Edition 2nd Edition
Languages
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Author (1):
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Patrick R. Nicolas Patrick R. Nicolas
Author Profile Icon Patrick R. Nicolas
Patrick R. Nicolas
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Table of Contents (21) Chapters Close

Preface 1. Getting Started 2. Data Pipelines FREE CHAPTER 3. Data Preprocessing 4. Unsupervised Learning 5. Dimension Reduction 6. Naïve Bayes Classifiers 7. Sequential Data Models 8. Monte Carlo Inference 9. Regression and Regularization 10. Multilayer Perceptron 11. Deep Learning 12. Kernel Models and SVM 13. Evolutionary Computing 14. Multiarmed Bandits 15. Reinforcement Learning 16. Parallelism in Scala and Akka 17. Apache Spark MLlib A. Basic Concepts B. References Index

Bootstrapping with replacement


Bootstrapping is a Monte Carlo sampling technique to evaluate the sampling of a given distribution. This technique extracts samples from an independent and identically distributed dataset with a distribution that may not be known and represented as an empirical distribution function. The sample is created by selecting and replacing a data point, randomly chosen from the original population [8:5].

Overview

The purpose of bootstrapping is to estimate the accuracy of the resulting sampling by computing statistics characteristics such as mean, bias, standard deviation, average prediction errors, or confidence factors. As with any other sampling techniques, the resulting sample should be precise enough so that any statistical inference derived from the sample also applies to the original dataset.

One common application of bootstrapping is to estimate the empirical distribution of a statistic such as mean, standard deviation, or kurtosis. This approach is known as resampling...

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