Expert systems

Expert systems

1. what is an expert system?

   • An expert system is an ict system that uses artfiical intelligence to make decisions based on data supplied in the form of answers to questions

2. The three components of an expert system?

   • inference engine( a set of rules)
     • A user interface(present the question
     • Knowledge base(A data based of knowledge abut

3. Expert system shells?

   • Build expert system from scratch using a software language
   • • PROLOG • And ASPIRIN
   • Use a expert system shell
     • • Provides the inference engine and user interface, but the knowledge will have to be entered separately.
       • MYCIN
         • Used in medicine to pinpoint the correct organism that is responsible for a blood infection.
       • NEOMYCIN
         • Used to train doctors with case studies

4. Advantagers

   • Consistency
   • Cheaper
   • Consult a much larger pool of information than a doctor
   • Available 24/7
   • Cannot forget

5. disadvantages

   • No common sense
   • Can make absurd errors
   • Not able to provide creative responses
   • Not being able to realise when no answer is available to a problem