I believe as a concept, conceptually that as picking these projects is framing how users can be modeled, how the context can be modeled, how can society benefit from all the breakthrough research of this projects on the society. So far what I like the most is the framing of the projects in terms of how interaction is being considered, how the symbolic and the modern machine learning techniques are breaching together and how the ethics and transparency are being considered.
I think one of the biggest challenges is understanding the users their context. If I would have unlimited resources I would try to contribute to moral in the context. Because it is very dynamic, is very challenging and it’s a one of the long term research challenges currently going on.