Deeplearning4j primarily works on networks having multiple layers. To get started working with Deeplearning4j, one needs to get accustomed with the prerequisites, and how to install all the dependent software. Most of the documentation can be easily found on the official website of Deeplearning4j at https://deeplearning4j.org/ [88].
In this section of the chapter, we will help you to get familiar with the code of Deeplearning4j. Initially, we will show the implementation of a simple operation of a multilayer neural network with Deeplearning4j. The later part of the section will discuss distributed deep learning with Deeplearning4j library. Deeplearning4j trains distributed deep neural network on multiple distributed GPUs using Apache Spark. The later part of this section will also introduce the setup of Apache Spark for Deeplearning4j.
