The DeepLearning4j framework
Before jumping into the first example, let's quickly introduce the DeepLearning4j (https://deeplearning4j.org/) framework. It is an open source (released under the Apache license 2.0 (https://www.apache.org/licenses/LICENSE-2.0)), distributed deep learning framework written for the JVM. Being integrated since its earliest releases with Hadoop and Spark, it takes advantage of such distributed computing frameworks to speed up network training. It is written in Java, so is compatible with any other JVM language (including Scala of course), while the underlying computations are written in lower level languages, such as C, C++, and CUDA. The DL4J API gives flexibility when composing deep neural networks. So it is possible ...
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