摘要
ＲＡ（Ｒｅｄａｃｔｉｏｎ—Ａｓｓｏｃｉａｔｉｏｎ）是一种面向知识级分析的ＰＳ（问题求解）建模方法，其把ＫＢ（基于知识的）系统设计为由ＰＳ过程模型和ＰＳ参考的世界模型所组成。ＲＡ方法以问题归纳和子任务联想模式为手段去开发过程的结构化组织，以期加深对ＰＳ任务的理解并进而指导对这些模型的开发。ＰＳ建模分两个阶段：知识级分析和符号级实现。前者由基于ＲＡ方法的结构化交互式建模语言来支持，后者则提供功能化体系结构以确保知识级分析的结果不失配地转变为可执行的ＰＳ过程模型和世界模型。
RA(Reduction--Association) is a PS(Problem Solvillg) modeling method, which exploits the knowledge of PS organization by means of problem reduction and subtask association mode. By RA method, a KB (Knowledge--Based) system is designed by constructing a PS process model and the world models concerned in PS. Therefore, RA emphasizes the organzation for PS processes in order to deepen the understanding of PS tasks and,hence, to guide the development of those models. There are two stages for PS modeling: Knowledge--level analysis and symbol--level implementation. The former is supported by a structural and interactive RA--based modeling language whle the latter provides functional architectures to guarantee that the results of knowledge--level analysis are turned into executable PS process models and world models without mismatch
基金
国家自然科学基金
关键词
建立模型
知识级分析
RA
PS
problem solving
modeling
problem reduction
knowledge -level analysis
functional architecture
