Google’s AI beats world Go champion in first of five matches
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Selected by Rael
Mar 10, 2016, 12:30:57 AM3/10/16
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Source: http://www.bbc.com/news/technology-35761246
Google’s AI beats world Go champion in first of five matches
- 9 March 2016
- From the sectionTechnology
Google's DeepMind AlphaGo program beat South Korea's Lee Se-dol in the first of a series of games in Seoul.
In October 2015, AlphaGo beat the European Go champion, an achievement that was not expected for years.
A computer has beaten the world chess champion, but the Chinese game Go is seen as significantly more complex.
Image copyrightTwitterThroughout most of the game he had seemed to have the upper hand but in the last 20 minutes, AlphaGo took an unassailable lead. Mr Lee then forfeited, handing victory to his opponent.
"I was very surprised because I did not think that I would lose the game," said Mr Lee.
"A mistake I made at the very beginning lasted until the very last."
The Go player has won 18 world championships since turning professional at the age of 12.
He said AlphaGo's early strategy was "excellent'' and that he was stunned by one unconventional move it had made that a human never would have played.
Despite his initial loss though, he did not regret accepting the challenge.
"I had a lot of fun playing Go and I'm looking forward to the future games,'' he said.
The two sides will play a total of five games over the coming days for a prize of about $1m (£700,000).
Image copyrightGoogleAlgorithm vs intuition
The five-day battle is being seen as a major test of what scientists and engineers have achieved in the sphere of artificial intelligence.Go is a 3,000-year old Chinese board game and is considered to be a lot more complex than chess where artificial intelligence scored its most famous victory to date when IBM's Deep Blue beat grandmaster Gary Kasparov in 1997.
But experts say Go presents an entirely different challenge because of the game's incomputable number of move options which means that the computer must be capable of human-like "intuition" to prevail.
Image copyrightGoogle"Normally, you can sense your opponent's breathing, their energy. And lots of times you make decisions which are dependent on the physical reactions of the person you're playing against.
"With a machine, you can't do that."
What is Go?
Using black-and-white stones on a grid, players gain the upper hand by surrounding their opponents pieces with their own.
The rules are simpler than those of chess, but a player typically has a choice of 200 moves compared with about 20 in chess.
There are more possible positions in Go than atoms in the universe, according to DeepMind's team.
It can be very difficult to determine who is winning, and many of the top human players rely on instinct.
Learning from mistakes
Google's AlphaGo was developed by British computer company DeepMind which was bought by Google in 2014."After it's learned that, it's got to reasonable standards by looking at professional games. It then played itself, different versions of itself millions and millions of times and each time get incrementally slightly better - it learns from its mistakes"
Learning and improving from its own matchplay experience means the super computer is now even stronger than when it beat the European champion late last year.
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