How To Understand Expert Systems

Imagine a computer system that diagnoses human illnesses and even gives a recommendation for appropriate treatment. Do you know that type of application is now possible with the existence of a new technology? You might be wondering, how can an inanimate object such as a computer help in health care? Today, the computer technology era has gone to its optimum level with a new application known as an expert system. 

By its name alone, you would know that its definition is based on a human expert's ability. This type of software application is designed to reproduce the same quality of performance from one or two human beings. It is a computer application designed to perform tasks that could have been performed by human experts. This type of application is categorized as an artificial intelligence application. It stores expert knowledge in a database, and it attempts to help solve problems or engage in decision making through the use of similar data.

The primary purpose of expert systems is in solving problems in certain areas or fields. Therefore, this knowledge based system, which was structured in imitation of human experts, is solely designed by a knowledge engineer, someone who studies the principles behind human experts’ decision making and from there, he creates rule based systems that help the computer understand. In other words, this application was created for two purposes, and these are problem-solving and decision-making. This computerized tool enhances the quality of human knowledge in its decision making, and it applies to different industries such as banking and finance, health and businesses.

For instance, expert systems can diagnose human illnesses and make a schedule for the patient’s medication. Another function of an expert system is in an office setup, where different computer workstations are attached or connected to one computer network. The role of the expert system is to oversee the problems in the computer connection or programming systems and to immediately seek the technician's help. Specifically, there are some identified expert model systems, and here are some of the examples.

  • Mycin - The well known classical expert system example was Mycin. It was designed to diagnose blood infections and recommend treatments to patient.
  • Dendral – This is one of the earliest expert system, which was designed to analyze mass spectra. However, Dendral was a rule based system which works uniquely from other kinds of expert systems.
  • Delta – This is an application that diagnoses electrical repair problems.
  • Tax Advisor – Its purpose is to ask questions about the users’ financial status and to give advice on minimizing payments on taxes while increasing revenue on probable investments.

However, the application may vary according to the type of computer used by the owner. Here are more specific examples of this system and its corresponding computer application.

  • Mac users – You can use American Authors, Dinosaur, functions advisor, etc.
  • PC users (DOS application) – You can use BOMB.KB, DISTANCE.KB, KINETIC.KB, GEOSHAPE.KB, GENMATH.KB, THEORY.KB etc.

The existence of expert systems could serve as an alternative for humans to function in certain tasks. However, this is not a license for people to rely on it all the time and be lazy in doing their own work. 


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