1. Artificial Intelligence and
Expert Systems
By: Kate Festa

2. How can we benefit both today
and in the future?
What are the Strengths and Weaknesses?
How is AI really used?

3. Let’s go!

4. What is Artificial Intelligence?
Simple enough?

6. Rosie can…
Think independently
Clean
Walk
Talk
Care for children
Use emotion (relatively)

7. We have ourselves a
conundrum…

8. quot;The aim of Artificial Intelligence is to create intelligent
machines and through this, to understand the
principles of intelligence. At the moment, we can
settle for creating less stupid machines.”
-John L. Gordon

9. “Artificial intelligence is that attempt to make
computers do what they do in movies”
-Astro Teller

10. Two Distinct Ideas
1. Using computers tosimulate
human mental processes
2. Using computers to think
independently of the way
people think

12. So what’s an expert system
anyway?

13. Computer
Medicine Systems
Applications
Chemistry
Meteorology
Geology

14. 1. Do not require common sense to solve
2. Are generally well understood
3. Can be described objectively
4. Human expertise is often scarce
5. Expertise is needed in a variety of locations
6. There are considerable advantages in reaching an
overall answer quickly

16. An analogy

17. The Knowledge Base: The
Library

18. The Knowledge Engineer: The
Real Brain

19. The Interference Engine: The
Logic

20. Human Interference: The
Necessity

21. Decision Support
Don’t trust a machine to make a full decision?
Want to be reminded of situations to
consider?
Can’t remember everything and need
a little help?
…decision support is for you!

22. Decision Making
Are you unfamiliar with a particular area?
Don’t want to hire a real expert?
Have smaller decisions to make?
Don’t want an industrial disaster?
…a decision making system is for you!

23. Human or Expert System??

25. IF the infection is a primary bacteremia
AND the site of the culture is a sterile site
AND the suspected portal of entry is the gastrointestinal tract
THEN there is suggestive evidence (.7) that the infection is
bacterioid

26. Advantages
Permanent expertise
Expertise easily reproduced
Inexpensive
Can hold significant amounts of information
Consistent Results
Consider transactions that humans overlook

27. Disadvantages
Lack of human common sense
Difficult to promote creative responses
Cannot explain logic
Lack of flexibility
No response

28. People and Machines

29. Reliability

30. Thanks for listening : )