AlphaGo

網址:https://en.wikipedia.org/wiki/AlphaGo

AlphaGo

AlphaGo is a computer program developed by Alphabet Inc.'s Google DeepMind in London to play the board game Go. In October 2015, it became the first Computer Go program to beat a human professional Go player without handicaps on a full-sized 19×19 board. In March 2016, it beat Lee Sedol in a five-game match, the first time a computer Go program has beaten a 9-dan professional without handicaps.Although it lost to Lee Sedol in the fourth game, Lee resigned the final game, giving a final score of 4 games to 1 in favour of AlphaGo. In recognition of beating Lee Sedol, AlphaGo was awarded an honorary 9-dan by the Korea Baduk Association. It was chosen by Science as one of the Breakthrough of the Year runners-up on 22 December 2016.

AlphaGo's algorithm uses a Monte Carlo tree search to find its moves based on knowledge previously "learned" by machine learning, specifically by an artificial neural network (a deep learning method) by extensive training, both from human and computer play.

Structure of the lead:

WHO: not given

WHAT:a computer program

WHEN:October 2015

WHERE:London

WHY:Alphago beat  Lee Sedol 

HOW:machine learning

Keywords:

handicaps(n.)障礙

resigned(v.)放棄

honorary(a.)榮耀的

algorithm(n.)算法

artificial(a,)人工的

extensive(a.)廣大的