从《中国大百科全书》中获取教育知识

Acquiring Pedagogical Knowledge from Texts in the Electronic Ency clo pedia of China

教育知识获取是国家知识基础设施研制中知识获取的一项重要工作。《中国大百科全书》中包含着教育学、教育心理学、学习理论、教育管理和各国教育等丰富的教育知识。该文研制了一种知识获取方法,并采用此方法成功地获取了大量的教育知识。该方法由两部分组成:一是高度类自然的教育知识描述语言(PKDL),由知识工程师用于形式化《中国大百科全书》中的教育知识文本;二是PKDL编译系统,该系统对PKDL文本进行编译、分析和知识连接,最终生成教育知识库。

Acquiring pedagogical knowledge from texts in the Electronic Encyclopedia of China is an important research in the National Knowledge Infrastructure(NKI ).The electronic Encyclopedia of China contains considerably complete pedagogical knowledge in unrestricted text.To acquire the knowledge from the texts,the paper develops a new method.The method consists of two major parts:a Pedagogical Knowledge Description Language(PKDL)for formalizing the texts,and a PKDL compiler for parsing and analyzing the formalized text and representing it with IO-model of knowledge representation.This paper presents the method and demonstrates its application in acquiring pedagogical knowledge from the encyclopedic texts.