Alibaba Group Holding Ltd. has pledged to invest more than 380 billion yuan ($53 billion) on AI infrastructure such as data centers over the next three years, a major commitment that underscores the e-commerce pioneer’s ambitions of becoming a leader in artificial intelligence.The internet company co-founded by Jack Ma plans to spend more on its AI and cloud computing network than it has over the past decade. Alibaba envisions becoming a key partner to companies developing and applying AI to the...