马云强势回归阿里，推动人工智能转型与电商竞争

Core Viewpoint - Jack Ma has made a strong return to Alibaba, with his involvement at the highest level in five years, indicating a strategic shift towards artificial intelligence and a competitive stance against rivals like JD.com and Meituan [1] Group 1 - Jack Ma's direct participation in Alibaba has reached its strongest level in five years [1] - The company is shifting focus towards artificial intelligence [1] - Alibaba is preparing to compete more aggressively with e-commerce rivals JD.com and Meituan [1] Group 2 - Jack Ma has been seen multiple times at Alibaba's campus this year [1] - On September 16, he was spotted at a bar within Alibaba's premises, accompanied by a senior executive from Ant Group [1]