ByteDance and Alibaba Group Holding are poised to ratchet up their artificial intelligence infrastructure initiatives, as the global AI arms race continues to intensify. The two companies’ latest moves lend weight to Nvidia CEO Jensen Huang’s recent remarks at the World Economic Forum in Davos, Switzerland, that the world was witnessing the biggest infrastructure buildout in history and that trillions of dollars of infrastructure still had to be built. Beijing-based ByteDance, operator of TikTok...