By Gerry Shih SAN FRANCISCO (Reuters) – China’s top search engine Baidu Inc has hired Google Inc’s former artificial intelligence (AI) chief Andrew Ng to spearhead research in a field that promises to show Internet companies how to maximize use of their vast data trove. Baidu said Friday it has opened a new AI lab in Silicon Valley to complement its Deep Learning Lab and Big Data Lab in Beijing, both of which will also be headed by Ng. The news was announced at Baidu’s newly opened research complex in Sunnyvale, California, located near the Mountain View headquarters of Google, where Ng had founded and led an elite Deep Learning team in 2011.