User Models as Digital Twins: Using Webassembly Techniques to ensure Privacy, Transparency and Control in Personalization

The half-day tutorial demonstrates how web-assembly techniques can be used to create sandboxed user models as digital twins within web- and mobile applications. Such models can learn from the user's behaviour and personalise the application to the user, while ensuring transparency of the model, and ability for the user to experiment and control the personalization. The advantage of using webassembly techniques to implement digital twin user models is that the user model is a plugin, insulated from the application, and thus the protecting the privacy of the user model.