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    从一般观点来看，人工智能的研究途径有以下三大派。

    1．符号主义（Symbolicism )

    这是以符号处理为核心，以数学逻辑为基础的人工智能主流派，是计算机模拟人类智能的必然产物。它的代表人物是CMU的纽厄尔、西蒙及斯坦福研究所的尼尔逊(Nilsson)。其指导思想是，人工智能的研究目标既然是实现机器智能，那么计算机本身就具有符号处理的推算能力，因而可以通过符号程序设计来实现某种基于逻辑思维的智能行为，达到模拟人类智能活动的效果，其代表性成果就是前面提及的“逻辑理论家”和通用求解程序GPS。