一个黑白棋，使用了极大极小剪枝方法。不过由于经验不足，vc使用的并不好。但是算法没有问题-A Reversi, using the Minimax pruning methods. However, due to lack of experience, vc used is not good

无偏估计阈值信号处理；固定式阈值阈值信号处理；极大极小值阈值阈值信号处理；软阈值；硬阈值；(Unbiased estimation, threshold signal processing, fixed threshold thresholding, signal processing, minimax thresholding, signal processing, soft thresholding, hard thresholding;)