知识网络的结构及演化研究是探索知识的发展脉络和创新趋势的基础,本文从拓扑结构和演化机制两个方面综述了知识网络的理论研究进展。首先,回顾了知识网络及相关概念的来源和相互关系,将当前的知识网络研究划分为物理统计和概念认知两种研究思路,比较了两种思路在研究内容和方法上的差别;然后,从结构的不均匀性、小世界特征和微观结构三个方面归纳了知识网络的拓扑结构研究,从相应结构特征的生成机理和演化模型归纳了知识网络的演化问题研究;最后,指出了当前研究的不足和未来的研究重点。
It is the foundation for exploring the history and innovation trends of knowledge of the study of structure and evolvement of knowledge networks,this paper reviewed the theory research by the content of topology and evolvement mechanism of knowledge network.First,it looks forward the history of the concepts,divide the contemporary study to two perspectives:physical statistics and concept cognitive,and compare their differences in content and method.Then,it analysis the network's topology by three aspects:non-proportioned structure,small-world characteristic and partial structure,and proposes the formation mechanism and evolvement model of those structure.The last,it points the shortage and the following research point.