SEMANTIC offers an innovative research and training network for multi-GHz spectrum communications, MEC-empowered service provisioning and end-to-end network slicing, all integrated and jointly orchestrated by forward-looking data-driven network control and automation exploiting the enormous amounts of mobile big data spurred into the mobile data network. In this context, SEMANTIC will form an integrated, multi-disciplinary training network of early stage researchers (ESRs), guided by experienced supervisors, aiming at the creation of highly-trained academic researchers and industrial professionals with a future-proof background on PHY design for multi-GHz communications, end-to-end MEC/RAN integration, slice-enabled connectivity and data-driven network orchestration in the 5G continuum.