This article has been reviewed according to Science X's editorial process and policies . Editors have highlighted the following attributes while ensuring the content's credibility: Credit: Unsplash/CC0 Public Domain US tech giant Amazon has shut down its artificial intelligence research lab in Shanghai, a source with direct knowledge of the matter confirmed to AFP. News that the lab, part of cloud division Amazon Web Services (AWS), has closed comes with AI at the forefront of a tech race between China a ...