Knowledge Based Systems

In: Business and Management

Submitted By wikie7
Words 1119
Pages 5
What is a knowledge-based system?
A system which is built around a knowledge base. i.e. a collection of knowledge, taken from a human, and stored in such a way that the system can reason with it.
Example:
System: What is the patient's name?
User: George Smith
System: What is the patient's age?
User: 52 years
System: Is the patient male or female?
User: Male
System: What are the symptoms?
User: Headache dizziness upset stomach high fever
System: When did these symptoms first appear?
User: 23/03/2002
System: I conclude that the patient has a viral infection , my recommendation is that he should take two aspirin, drink plenty of fluid, get lots of rest.

What is knowledge?
Knowledge is the sort of information that people use to solve problems.
Knowledge includes facts, concepts, procedures, models, heuristics, etc.
Knowledge may be: * specific or general * exact or fuzzy * procedural or declarative

What is an expert system? * A particular kind of knowledge-based system * One in which the knowledge, stored in the knowledge base, has been taken from an expert in some particular field.
Therefore, an expert system can, to a certain extent, act as a substitute for the expert from whom the knowledge was taken.
What is Artificial Intelligence?
Artificial Intelligence (AI) is concerned with exploring such aspects of human (and other animal) mental activity as: * understanding * creativity * Perception * problem-solving * consciousness * using language * Intelligence by simulating them using computers.
It is therefore closely connected with such social sciences as: * psychology * linguistics * philosophy
Applied Artificial Intelligence
What is applied AI?
Applied AI is concerned with producing software which is “intelligent”
It is intelligent in that it is based on what we know…...

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