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AlphaGo grabs third, overall win in Go human vs. machine showdown
http://www.ecns.cn/2016/03-12/202658.shtml
Mar 12th 2016, 17:11
Saturday Mar 12, 2016
AlphaGo, the computer created by DeepMind, the Artificial Intelligence (AI) arm of Google, established a commanding three consecutive victories over South Korea's grandmaster Lee Sedol, winning the best-of-five human vs. machine Go-chess showdown on Satursday.
World champion Lee, one of the top players of the ancient Chinese board game, lost the Game 3 in a similar pattern, having to resign half way when it became clear the AlphaGo had taken an unassailable lead like the preceding two encounters.
The chance for Lee to win one game in remaining two matches as he aimed to after Game 2 now seems quite slim. The progress of AI technology is proved far beyond expectations ahead of the human vs. machine match-up as most experts had predicted that Lee will be the overall winner inlcuding former Google Vice President Kai-Fu Lee, who had assumed AlphaGo could not defeat Lee in their first face-off.
The scenario has never come up to Lee's imagination either. As a great Go player, who has topped the world ranking for much of the past decade, Lee confidently predicted an easy victory when accepting the AlphaGo challenge, but now finds himself fighting to avoid a whitewash defeat in the two remaining games on Sunday and Tuesday.
"AlphaGo played consistently from beginning to the end while Lee, as he is only human, showed some mental vulnerability," said one of Lee's former coaches, Kwon Kap-Yong.
"The machine was increasingly gaining the upper hand as the series progressed," Kwon said.
The most famous AI victory to date came in 1997 when the IBM-developed supercomputer Deep Blue beat Garry Kasparov, the then-world class chess champion, in its second attempt.
But a true mastery of Go, which has more possible move configurations than there are atoms in the universe, had long been considered the exclusive province of humans -- until now.
AlphaGo's consecutive victories in the mind game is a breakthrough for AI, showing the program has mastered one of the most creative and complex games ever devised.
AI experts had forecast it would take another decade for computers to beat professional Go players. That changed when AlphaGo defeated the European Go champion Fan Hui last year in a 5-0 whitewash, in a closed-door match later published in the journal Nature. Since then, AlphaGo's performance has steadily improved.
AlphaGo's successive wins over a human champion shows computers can mimic intuition and tackle more complex tasks, its creators say. They believe that ability could be used to help scientists solve tough real-world problems in health care and other areas.
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