Book Image

Apache Spark Deep Learning Cookbook

By : Ahmed Sherif, Amrith Ravindra
Book Image

Apache Spark Deep Learning Cookbook

By: Ahmed Sherif, Amrith Ravindra

Overview of this book

Organizations these days need to integrate popular big data tools such as Apache Spark with highly efficient deep learning libraries if they’re looking to gain faster and more powerful insights from their data. With this book, you’ll discover over 80 recipes to help you train fast, enterprise-grade, deep learning models on Apache Spark. Each recipe addresses a specific problem, and offers a proven, best-practice solution to difficulties encountered while implementing various deep learning algorithms in a distributed environment. The book follows a systematic approach, featuring a balance of theory and tips with best practice solutions to assist you with training different types of neural networks such as convolutional neural networks (CNNs) and recurrent neural networks (RNNs). You’ll also have access to code written in TensorFlow and Keras that you can run on Spark to solve a variety of deep learning problems in computer vision and natural language processing (NLP), or tweak to tackle other problems encountered in deep learning. By the end of this book, you'll have the skills you need to train and deploy state-of-the-art deep learning models on Apache Spark.
Table of Contents (21 chapters)
Title Page
Copyright and Credits
Packt Upsell
Foreword
Contributors
Preface
Index

Chapter 2. Creating a Neural Network in Spark

In this chapter, the following recipes will be covered:

  • Creating a dataframe in PySpark
  • Manipulating columns in a PySpark dataframe
  • Converting a PySpark dataframe into an array
  • Visualizing the array in a scatterplot
  • Setting up weights and biases for input into the neural network
  • Normalizing the input data for the neural network
  • Validating array for optimal neural network performance
  • Setting up the activation function with sigmoid
  • Creating the sigmoid derivative function
  • Calculating the cost function in a neural network
  • Predicting gender based on height and weight
  • Visualizing prediction scores