An iterative technique often works best. First, interview an expert
used-car buyer (or study up on used-car buying.) Now write down, in
English, some of the decisions you'd need to make
- If the mileage is low, the car is better, all other things being
equal.
- If the paint is new, have a mechanic look for body repairs.
- If the frame is bent, don't buy the car.
- Don't buy a color you don't like.
- Then define some deftemplates to represent the requisite facts used
cars.
(deftemplate car (slot model) (slot year) (slot mileage)
(slot desirability) (slot car-id))
(deftemplate paint (slot car-id) (slot color) (slot is-new))
(deftemplate mechanical (slot car-id) (slot frame-bent)
(slot body-repairs))
Then try to write some rules which implement the decisions you wrote
down first. If you can't, refine the deftemplates. If you can,
good. Now come up with some more rules, and repeat the cycle.
I think Larry Loh wrote:
[Charset iso-8859-1 unsupported, filtering to ASCII...]
> Hi I am new to Jess. I need to create a new knowledge based system to help
> car buyers make decision advice on the types of car that they would like
> buying by providing advice. Can anyone give me advise on how to start.
>
>
---------------------------------------------------------
Ernest Friedman-Hill
Distributed Systems Research Phone: (925) 294-2154
Sandia National Labs FAX: (925) 294-2234
Org. 8920, MS 9012 [EMAIL PROTECTED]
PO Box 969 http://herzberg.ca.sandia.gov
Livermore, CA 94550
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