Book Image

Java Deep Learning Projects

Book Image

Java Deep Learning Projects

Overview of this book

Java is one of the most widely used programming languages. With the rise of deep learning, it has become a popular choice of tool among data scientists and machine learning experts. Java Deep Learning Projects starts with an overview of deep learning concepts and then delves into advanced projects. You will see how to build several projects using different deep neural network architectures such as multilayer perceptrons, Deep Belief Networks, CNN, LSTM, and Factorization Machines. You will get acquainted with popular deep and machine learning libraries for Java such as Deeplearning4j, Spark ML, and RankSys and you’ll be able to use their features to build and deploy projects on distributed computing environments. You will then explore advanced domains such as transfer learning and deep reinforcement learning using the Java ecosystem, covering various real-world domains such as healthcare, NLP, image classification, and multimedia analytics with an easy-to-follow approach. Expert reviews and tips will follow every project to give you insights and hacks. By the end of this book, you will have stepped up your expertise when it comes to deep learning in Java, taking it beyond theory and be able to build your own advanced deep learning systems.
Table of Contents (13 chapters)

Developing a movie recommender system using FMs

In this project, we will show you how to do ranking prediction from the MovieLens 1m dataset. First, we will prepare the dataset. Then, we will train the FM algorithm, which eventually predicts the rankings and ratings for movies. The project code has the following structure:

Movie rating and ranking prediction project structure

In summary, the project has the following structure:

  • EDA: This package is used to do an exploratory analysis of the MovieLens 1M dataset.
  • Tools, FMCore, and DataUtils: These are the core FM libraries. For the purpose of this probject, I used (but extended) the RankSys library (see the GitHub repository at https://github.com/RankSys/RankSys).
  • Preprocessing: This package is used to convert the MovieLens 1M dataset into LibFM format.
  • Prediction: This package is used for the movie rating and ranking prediction...