摘要
结合当前对文献关键词网络两种研究范式的优点，在既考虑词所处的语境又考虑词在网络中的位置特征基础上，以布鲁克斯的认知地图和知识计量学为基本理论，首次提出知识群内部的知识单元外部连接度的概念。理论分析表明知识群中具有最高外部连接度的知识单元在知识群形成的知识链中具有知识基因的功能，并以此为基础构建了共词网络认知结构的实现方法。该方法既可以分析知识创新的过程。也可用于从遗传与变异角度总结知识的变化与活动模式，并具有一定的预测功能。随后，以石墨烯的发现及其演化为例，对理论与方法的有效性进行了验证，指出了不足之处及后续研究方向。
Combining the advantage of two approaches in study of co-word knowledge network and taking account of both the context and location feature of keywords in a network, the paper proposed the concept of external linkness of knowledge units in a knowledge group and analysed its theoretical significance. It has been shown by theoretical analysis that knowledge unit with the higest external linkness in a knowledge group played the role of knowledge gene on the chain making by knowledge groups and can be specifically used to construct the cognitive structure of co-word netwrok.. Meanwhile, the method of construct cognitive structure can be not only used to analysing the process of knowledge innovation but also to summarizing the change and activity model of knowledge from inheritance and variation view and predicting its future development direction. Finally, take the Graphene and its evolution process as an case, the effective of theory and method was tested and limitation as well as future direction were also presented.
出处
《情报学报》
CSSCI
北大核心
2013年第9期976-989,共14页
Journal of the China Society for Scientific and Technical Information
基金
国家自然科学基金项目(批准号:70773015)
项目名称:基于技术科学的前沿技术知识图谱及强国战略研究
关键词
共词知识网络
认知结构
知识单元
知识基因
co-word knowledge network, cognitive structure, knowledge units, knowledge gene
