A single parameter, the probability of executing MCTS rollouts vs. alpha-beta rollouts, makes it possible for the hybrid to subsume both MCTS as well as alpha-beta search as extreme cases, while allowing for a spectrum of new search algorithms in between....
这些程序利用人工设定的特征和精心调整的权重来评估棋局,运用多种巧妙的启发式方法和特定领域知识构建搜索树,同时配合了高效的 Alpha-Beta 搜索技术 [6]。这种方法通过“剪枝”技术消除了明显劣于已探索分支的其他分支。在后续的实验中,AlphaZero 着重研究了2016年顶级国际象棋引擎锦标赛(TCEC)的世界冠军 Stockfish [7...
alpha-beta search algorithm variantsWe present EvoMCTS, a genetic programming method for enhancing level of play in games. Our work focuses on the zero-... A Benbassat,M Sipper - IEEE 被引量: 14发表: 2013年 Enhanced cerebral expression of MCT1 and MCT2 in a rat ischemia model occurs ...
Moreover it is shown empirically that the algorithm converges rather fast even in comparison with alpha-beta search. Experiments in Amazons and Clobber indicate that the UCT algorithm outperforms considerably a plain Monte-Carlo version, and it is competitive againstalpha-betabased game programs. 6.4...
Minimax 搜索还有许多后续发展,如课本会说的 Alpha-beta 剪枝,以及更进一步的 Null Window / NegaScout / MTD(f) 等等。可惜这些方法更适合象棋等棋类,对于围棋的意义不大(除非已经接近终局),请读者思考原因。 蒙特卡洛树搜索和蒙特卡洛方法的区别在于:
博弈树搜索算法(比如Minimax)在所有可能的走棋中进行搜索,寻找那些能够确保得到高价值棋盘盘面的路径。对于那些已经明知不可能有效的路径可以直接放弃搜索,从而使算法变得更有效率。这就是Alpha-beta剪枝的作用。 最后,搭配上异常强悍的硬件,你就将拥有一台能够打败国际象棋世界冠军的机器。
NNUE算法大家可能有一些了解,简略的说就是在传统的Min-Max & Alpha-Beta搜索算法中,用一个浅层的快速神经网络来代替人工估价函数。 从我的浅薄视点看来围棋NNUE完全有实现的潜力,围棋规则天生就是一个可以增量更新的棋盘(可快速更新)。用现存的强软(比如KataGO)给出的局面胜率与自对弈结果加权平均后作为标签进行...
reinforcement learning algorithm,usingageneral purposeMonte-Carlotreesearch(MCTS) algorithm... high-performance alpha-betasearchthatexpandsavastsearchtreeusingalarge number of clever 【强化学习】MCTS: 蒙特卡洛树搜索 搜索MCTS入门 机器学习alphaGo —montecarlosearchtree(1)...Monte-Carle 树搜索是一种前向搜索...
The history heuristic and alpha-beta search enhancements in practice. IEEE Trans. Pattern Anal. Mach. Intell., 11(11):1203–1212, 1989. [21] Peter Drake. Heuristics in monte carlo go. In In Proceedings of the 2007 Interna- tional Conference on Artificial Intelligence, CSREA. Press, 2007....
In order to combine the strategic strength of MCTS and the tactical strength...Baier, HendrikAdvanced Concepts Team European Space AgencySpringer, ChamWorkshop on Computer Games, International Workshop on General Intelligence in Game-Playing Agents...