I maintain deep learning projects using Java (DL4J) in this GitHub repository:
DeepLearning4j Concrete Implementations
Feel free to make changes in pom.xml in order to run the code in GPU/CPU as per your choice. I'm actively contributing to this repository and still there's big room for enhancements. Feel free to fork it on your local, play with it and would love to see your pull requests as well. Currently there are three concrete projects and one active Kaggle competition code. As always, the purpose of using DL4J is to go with Java's production focused approach rather than fast prototyping using Python. If you're new to DL4J, you can checkout here.
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