AlphaGo

AlphaGo is a series of ai programs developed by deepmind to play the board game Go. It was the first computer program to defeat a professional human Go player without handicaps, marking a significant milestone in Artificial Intelligence and machine-learning.

Key Milestones

  • 2015: Defeated European Go champion Fan Hui.
  • 2016: Defeated Lee Sedol, a nine-dan professional, in a five-game match.
  • 2017: AlphaGo Zero achieved superhuman performance by training solely through self-play, surpassing previous versions.

Technical Architecture

  • Utilizes deep-neural-networks combined with Monte Carlo Tree Search (MCTS).
  • Employs Policy Networks to select moves and Value Networks to evaluate board positions.
  • Transitioned from supervised learning on human games to machine-learning via self-play.

References