User:Ashish.sethi/Dreamer: The Expert System

Introduction
In this fast moving life we encounter many instances which we feel that they are DejaVu. What's the significance of these moments? Are they special? I think that they are special as well as significant because they act like an inspiration for me to solve out the classical puzzle of realization of dreams. Every person on earth has a dream. Every night each person on earth lives in a world which is fully controlled by his or her own brain. In the field of Computer Science, scientists are working on Neural Networks, Artificial Intelligence and Expert Systems since 1960's and I really appreciate their work. This time I have come up with an idea of developing the dreams on the computer screen. The name of my formula to solve this puzzle is Dreamer which is an Expert System and still is a mere idea on a paper.

What is an Expert System?
According to the definition, an expert system is a computer program that simulates the judgment and behavior of a human being in a particular field. Well, an expert system does this with the help of the knowledge base. Knowledge base is similar to a database but it contains experience and the expertise of one or more than one human expert. So who is an expert? An expert of a particular field is a human being having expertise to solve the problems quickly by his own developed ways and agility. I will discuss the knowledge base and the working of an expert system one by one but not in much detail as right now I am concerned with Dreamer.

Knowledge Base
Knowledge base is the vast knowledge, expertise and experience of many experts of a particular field which is used over and again to reach on a final result. The expert system uses the knowledge base to reach on the final result. The final result is the result which is required or a predefined statement by the experts. The knowledge base is prepared by the knowledge engineers or KE's. KE is a person who is responsible for the extraction of knowledge from the expert. KE extracts the knowledge and fills the knowledge base for the further use. This is a long process of extracting knowledge.

Who is an Expert?
An expert of a particular field is a person having expertise and knowledge as well as the ability and agility to solve the problems and give the desired result quickly. In the case of Dreamer, the experts will be doctors, computer engineers and computer scientists. Doctors are required to fulfill the medical requirements like CT scans, ECG, MRI's, Graphical presentations etc. and for other tests and requirements. Computer Engineers are required for building up the Hardware for the Dreamer and Computer Scientists are required for the perfect software development for the Dreamer.

Working of Expert System
The working of an Expert System is done through training. Training is the fundamental task of an expert system. Since expert system behaves like a human brain so its training goes on and on forever. Training is actually a process in which an input is given to the expert system, then the expert system produces the output which is checked with a predefined result by the experts. If it matches then it is accepted otherwise it is used to correct the faults in the training process. After correction measures, the expert system accepts the input for the second run and so on.