Primož Gajski (2010) Implementation of Backgammon player with neural network. EngD thesis.
Diploma thesis Implementation of Backgammon player with neural network describes implementation of how is a computer capable to learn the game of backgammon. It is achieved with computer playing against itself, without any human help and without any prior knowledge about the game. Evaluation function of game positions, according to the thrown dice and checker positions, was implemented with neural network. Neural network is presented as a 2-layer perceptron. The learning of neural network was achieved with reinforcement learning and backpropagation algorithm. Within backpropagation algorithm neural network plays several milions of backgammon games to achieve the advanced level of the game. Testing was also performed without any human interaction. Neural network played backgammon game against so called pubeval player, who also uses for its logic evaluation function to play on strong intermediate level. The testing showed that the neural network successfully accomplished all basic and also many of advanced features of game playing elements. Diploma work also involves realization of graphical user interface, which allows user to play backgammon against neural network.
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