PARIS: Flashy AI, robotics and self-driving cars will be on show at the annual Web Summit in Lisbon from Monday, but global tensions over high-tech trade, competition and sovereignty will be weighing on the minds of entrepreneurs, investors and policymakers.

Known as the "Davos for geeks", the four-day event in the Portuguese capital is set to welcome over 70,000 visitors, including 2,500 startups and 1,000 investors.