Research on designing knowledge base of environment evaluation system
Guowei Gu · Journal of Computer Applications · 2006
In order to creating dynamic data type of relation database,the algebraic expression was digitized with macro substitution,and the mirror array was designed to locate the variables of algebraic expression in database.In this way,the virtual data type of algebraic expression was constructed in relation database,and which was dynamic.It is realized to express knowledge with data based on this kind of data type.So the knowledge base,which is digitized completely,has been designed.Because of the dynamic data type,the system intelligence is enhanced.