Conclusion
At the very being nobody thought that it was possible to have an expert system without the participation of a human expert. However today this possible based on data or experience. Expert systems are greatly used and some firms rely greatly on them. Although most of the existing expert systems were born from the joint work of human expert and knowledge engineers.
Expert system have greatly developed over the years and have designed so that they are easier to build and develop. There are now even software programs such as CLIPS, which has a friendly user interface which allow the user to build an expert system without having to know the complex programming language.
As with most programs expert systems have both advantages and disadvantages. Even though expert systems are expensive and time consuming to build, in the long run the can save a business a lot of money.
Expert systems overall performance depends on the knowledge it can bring to bear on a problem to be solved. The quality of internal data processing in turn depends upon knowledge acquisition, knowledge representation and reasoning strategy. Performance also depends upon the quality of data input.
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