https://thenextweb.com/artificial-intelligence/2018/07/20/ibm-came-up-with-a-watermark-for-neural-networks/

The creation and development of a robust neural network is a labor-intensive and time consuming endeavor. That’s why a team of IBM researchers recently developed a way for AI developers to protect their intellectual property.

Much like digital watermarking, it embeds information into a network than can then be triggered for identification purposes. If you’ve spent hundreds of hours developing and training AI models, and someone decides to exploit your hard work, IBM’s new technique will allow you to prove that the models are yours.