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在信息服务向知识服务过渡中,知识元被认为是实现知识服务的实体单元。归纳已有知识元的研究方法,从情报学的视角探讨知识元的概念,提出知识元由导航信息和语义内容两部分组成、二者构成知识元的独立实体、单一的关键词不是知识元的观点。接着,从信息与知识变换的角度讨论文本知识元谱分析与提取的算法和实现。实验结果表明该方法具有可操作性和实践性。
In the transition from information service to knowledge service, knowledge element is considered as the entity unit to realize knowledge service. Summarizing the research methods of existing knowledge elements, the concept of knowledge elements is discussed from the perspective of information science. It is proposed that knowledge elements consist of navigation information and semantic content, and both of them constitute independent entities of knowledge elements. A single keyword is not a knowledge element View. Then, from the perspective of information and knowledge transformation, we discuss the algorithm and implementation of analyzing and extracting text knowledge meta-spectrum. Experimental results show that the method is feasible and practical.