Slide 1 February2008 Standard Grade Computing Expert Systems.

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Presentation transcript:

Slide 1 February2008 Standard Grade Computing Expert Systems

Slide 2 February2008 Standard Grade Computing Artificial Intelligence is a program which makes a computer behave as if it had a form of intelligence. An Expert System is a program that has access to a large database or knowledge about one particular subject.

Slide 3 February2008 Standard Grade Computing Expert Systems draw conclusions, make decisions and offer advice based on knowledge. Expert Systems contain the knowledge of human experts.

Slide 4 February2008 Standard Grade Computing Expert Systems can be used in – Medicine Geology Car maintenance Archaeology Chemistry Engineering Robotics

Slide 5 February2008 Standard Grade Computing An Expert Systems would be needed to produce an intelligent robot. Intelligent Robots (e.g. ASIMO developed by Honda) are programmed to behave as though they had a form of intelligence.

Slide 6 February2008 Standard Grade Computing Advantages of Expert Systems - Can be copied many times Are always accessible Are consistent in their decision making Contain knowledge from more than one person Save money by allowing unskilled workers to perform complex tasks Provide an impersonal source of advice

Slide 7 February2008 Standard Grade Computing Disadvantages of Expert Systems - Expensive to create Cannot use common sense like humans May lack depth of knowledge Are inflexible Cannot skip steps May contain mistakes

Slide 8 February2008 Standard Grade Computing Social Issues of expert systems include deskilling. Legal Issues of expert systems include blame and compensation claims. Ethical Issues of expert systems examine whether or not vital decisions should be left to machines.