What is an expert system Igcse ICT?

An expert system is computer software that attempts to act like a human expert on a particular subject area. Expert systems are often used to advise non-experts in situations where a human expert in unavailable (for example it may be too expensive to employ a human expert, or it might be a difficult to reach location).

Is an example of an expert system used in healthcare?

Medical Expert Systems Diagnostic expert-based systems are computer systems that seek to emulate the diagnostic decision-making ability of human experts. Some notable systems include Mycin for infectious diseases, and Internist-1, QMR and DXplain for general internal medicine.

What are the 3 main components of an expert systems and describe each?

An expert system is typically composed of at least three primary components. These are the inference engine, the knowledge base, and the User interface. We will introduce these components below.

What are some examples of expert systems?

Examples of Expert Systems

  • MYCIN: It was based on backward chaining and could identify various bacteria that could cause acute infections.
  • DENDRAL: Expert system used for chemical analysis to predict molecular structure.
  • PXDES: An Example of Expert System used to predict the degree and type of lung cancer.

What are the applications of expert systems?

There are several major application areas of expert system such as agriculture, education, environment, law manufacturing, medicine power system etc. Expert system is used to develop a large number of new products as well as new configurations of established products.

What are the main components of an expert system?

An expert system generally consists of four components: a knowledge base, the search or inference system, a knowledge acquisition system, and the user interface or communication system.

How an expert system can be used for medical diagnosis?

The purpose of medical expert system is to support the diagnosis process of physicians. It considers facts and symptoms to provide diagnosis. This implies that a medical expert system uses knowledge about diseases and facts about the patients to suggest diagnosis.

What is the known expert system for medical diagnosis?

PXDES is medical expert system, for diagnosis of lung disease. Explanation: None. 7.

What are expert systems in healthcare?

Expert systems, also known as intelligent knowledge based systems (IKBS), are computer programs which act as decision-support systems. They are currently being applied to a number of medical domains, most notably diagnosis and treatment planning.

How expert system is used in medical profession?

Abstract. Expert systems are software systems developed using different techniques of artificial intelligence that can act parallel to the “human” experts. The main role is consultative These are intelligent information systems that use more then 2000 different rules and that are capable to explain their decisions.