من طرف طالبه الإثنين 19 أبريل 2010 - 23:49
ودول إجابة أول 3 اسئلة
1- what is an expert system ?
* it is a program that embodies problem solving knowledge of a human expert .
* includes procedural as well as descriptive knowledge .
* problem solving expertise comes from knowledge rather than reasoning .
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2-expert system components :
1- knowledge base : declarative representation of the expertise often in IF THEN rules .
2- inference engine : is the code at the core of the system derives from knowledge base and problem
specific data .
3- user interface : the code that control the dialog between the user and the system .
expert ----> knowledge aqcuision ----> knowledge base ----> inference engine ----> user interface -----> user
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3- the steps of building an expert system :
1- introduction to expert systems and domains .
2- feasability study / prototypes .
3- building production system
* knowledge acquisition
* choosing representation of knowledge
* build inference mechanism
* field testing and revision
4- field using .