Chinese tech giant Baidu launched a Wikipedia challenger this week, banking on artificial intelligence to bridge information gaps for local and worldwide audiences in a move analysts said was aimed at seizing global opportunities. BaiduWiki, a Wikipedia-style service available in English, Spanish, French, Russian and Japanese, quietly went live on Monday, according to records from the Wayback Machine, a digital archive platform. A now deleted post on Baidu’s official account on social-media site...