- In the family of longjumping water beatles there are four species, the smaller, the green, the prickly, and the stinking. Of these, 20, 30, 40, and 50 percent, respectively, have an extra antenna, and of the total population 20% are smaller, 30% green, 40% prickly och 10% stinking. We find a beatle with an extra antenna. What is the probability that it is prickly?
- Draw the representation with Conceptual Dependencies and Conceptual Graphs of the sentences:
- The tree falls.
- The tree was felled by Kalle.
- The axe felled the tree.

- Given the following rules in a back-chaining system
H v (A & B) -> C (0.9) C v D -> E (0.75) F -> A (0.6) G -> D (0.8)

The system can conclude the following facts (with confidences) :F (0.9) B (0.8) G (0.7) H (0.8)

Use the formulæ for certainty factors to compute the certainty factor of E. - CF2 on page 17
- Suppose we know:
- Most people have a car.
- People who are less the 18 years old normally don't have a car, unless some of their parents is a millianaire.
- You become a millianaire if you win money by gambling on horses or if you work as a university teacher.

Build a TMS system with the information above. Mark the nodes IN or OUT. We are interested in whether Pelle has a car.

Then we learn that pelle is 17 years old. Reconsider the nodes.

Finally we learn that Pelle's mother is a university teacher. What happens?

- The Burglar Alarm
- Holmes is at work when he receives a call from Watson, informing him that his alarm has gone off.
- Holmes thinks it is likely that the alarm really went off, although Watson sometimes plays practical jokes.
- Holmes is on his way home when he hears a report on the radio, that there was an earthquake in the vicinity.
- Since the burglar alarm has been known to go off when there is an earthquake, Holmes reckons that a burglary is unlikely.
- Holmes goes back to work. (Leaving the noise for Watson)

**Earthquake Burglary***yes/no yes/no*/ \ / / \ / v v v**Radio Report Burglar Alarm***yes/no yes/no*| | v**Watson's Report***yes/no* - Suppose foo is defined as
(defun foo(x y) (cons (car x) y)))

Show how eval and apply interact if we then do:(foo '(a b) '(b c))

Last modified: Wed May 5 09:23:21 MEST 2004