China's most popular internet search company has picked up a new group president and COO. Previously at Microsoft and Yahoo (and an authority in artificial intelligence), Dr. Qi Lu might be just what the company needs. Baidu's profits have slipped from parts of its internet business and Lu will help lead Baidu's efforts in AI, which already include a smartphone assistant and self-driving cars. The company is already using AI to match advertisers with customers online, but has find new ways to grow after new advertising regulations in China hit its ad business hard. It still dominates China's internet search, where it holds an 80 percent market share.