Your SlideShare is downloading. ×
0
Expert System - Examples
Expert System - Examples
Expert System - Examples
Expert System - Examples
Expert System - Examples
Expert System - Examples
Expert System - Examples
Expert System - Examples
Expert System - Examples
Expert System - Examples
Expert System - Examples
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Expert System - Examples

951

Published on

Lithian …

Lithian
Mycin
Dendral

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
951
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
52
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. University of Education, Okara Campus 1
  • 2. •In 1965 DENDRAL was used in expert system •MYCIN was developed in 1976 University of Education, Okara Campus 2
  • 3. WHY MYCIN  Disease diagnosis and therapy selection  Advise for non expert physicians with time consideration and incomplete evidence as  Bacterial infections of the blood  Extended to other elements University of Education, Okara Campus 3
  • 4. PROBLEM BEFORE MYCIN • ROBERTS AND VISCONTI:-  Only 13% patients are treated rationally  66% are being given irrational treatment  21% are being given questionable treatment • IRRATIONAL MEANS, FOR EXAMPLE: Using a contra-indicated combination  Using the wrong agent for a specific organisms  Not taking the required culture University of Education, Okara Campus 4
  • 5. DEVELOPMENT OF MYCIN • Developed by ADWARD SHORTLIFFE in 1976 a STANFORD UNIVERSITY in the artificial intelligence in medicine group • First system that was implemented into the medical field University of Education, Okara Campus 5
  • 6. HOW MYCIN WAS TESTED FOR ACCURACY • 10 patients for a particular disease were chosen • Their information was sent to 8 physicians and MYCIN • All then came up with recommended treatment • Those recommendations along with what the patient actually received as treatment was sent to 8 unidentified specialists University of Education, Okara Campus 6
  • 7. WHO WON FROM THE TEST • MYCIN won the test • MYCIN received the highest score as for as accuracy and effectiveness of diagnosis University of Education, Okara Campus 7
  • 8. STAGES IN DAIGNOSIS AND TREATMENT • Decide if there is significant infection • Identify the causing organism(s) by clinical and laboratory evidence • Decide what antibiotic agent the organisms are sensitive to • Prescribe the optimal drug combination for particular case University of Education, Okara Campus 8
  • 9. RESULTS  Never implemented for routine clinical use  Shown to be competent by panels of experts even in case where experts themselves disagreed on conclusions  Key contributions  Reuse of production rules( expansion knowledge aquision ) University of Education, Okara Campus 9
  • 10. PROBLEMS • If the system gives an incorrect diagnosis, who is to be blamed or sued • Physicians rely to heavily on system instead of consulting other experts University of Education, Okara Campus 10
  • 11. Resources  Wikipedia Page   Building Expert Systems in Prolog    Available at: http://www.amzi.com/ExpertSystemsInProlog/xsipfrtop.htm Artificial Intelligence - A modern Approach by Stuart Rassell, Peter Norvig PC AI – Expert Systems   Available at: http://en.wikipedia.org/wiki/Expert_system Available at: http://www.pcai.com/web/ai_info/expert_systems.html VisiRule Web Demos (A simple example): http://www.lpa.co.uk/vrs_dem.htm University of Education, Okara Campus 11

×