Chinese technology powerhouses are beginning to reap early returns from their heavy investments in artificial intelligence, with quarterly results showing the impact across businesses from short video platforms like Kuaishou Technology to social media giants like Tencent Holdings. Kuaishou, China's second-largest short video app and rival to TikTok's Chinese sibling Douyin, was the latest to highlight gains from AI adoption. The company, in an earnings statement on Wednesday, attributed its third-quarter r ...