(the knowledge base would contain characteristics of every item, the details of an unknown item would be used as the query, and the advice would be a likely identification) Helping to identify items such as plants / animals / rocks / etc.(the knowledge base would contain data about the performance of financial markets and businesses in the past) Providing financial advice - whether to invest in a business, etc.Playing strategy games like chess against a computer (the knowledge base would contain strategies and moves, the player's moves would be used as the query, and the output would be the computer's 'expert' moves).Medical diagnosis (the knowledge base would contain medical information, the symptoms of the patient would be used as the query, and the advice would be a diagnose of the patient’s illness).The inference engine uses the query to search the knowledge base and then provides an answer or some advice to the user.This is done by asking a question, or by answering questions asked by the expert system. The non-expert user queries the expert system.It is software that attempts to derive answers from the knowledge base using a form of reasoning.This acts rather like a search engine, examining the knowledge base for information that matches the user's query.The inference rules closely follow human reasoning.These inference rules are used by the inference engine to draw conclusions.This is made up of a series of ‘inference rules’.It is a database designed to allow the complex storage and retrieval requirements of the expert systems.The knowledge base is created from information provided by human experts.
The user-interface is designed to be a simple to use as possible.
An engine to apply those rules (inference engine).a set of rules for making deductions from the data.facilities for searching the knowledge database.An expert system is a knowledge-based system which attempts to replace a human 'expert' in a particular field.Identification of plants, animals, chemical compounds.Diagnostics (car engine faults, circuit board faults etc).
Expert systems are often used to advise non-expertsin situations where a human expert is unavailable (for example it may be too expensive to employ a human expert, or it might be a difficult to reach the location).An expert system is computer software that attempts to act like a human experton a particular subject area.Understand the use of expert systems in.
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