The Pentagon’s high-tech research agency laid the groundwork for the Internet, stealth aircraft and self-driving cars. Now, it’s going big on artificial intelligence. From a report: At its 60th anniversary conference on Friday, DARPA announced a $2 billion investment to push the frontier of AI forward. “We think it’s a good time to seed the field of AI,” John Everett, the deputy director of DARPA’s Information Innovation Office, told CNNMoney. “We think we can accelerate two decades of progress into five years.” […] DARPA’s investment will focus on creating systems with common sense, contextual awareness and better energy efficiency. Advances could help the government automate security clearances, accredit software systems and make AI systems that explain themselves.