was a medical expert system
finished in the mid-1980s (first begun in the 1970s- it took a long time to build the knowledge base
) by Harry Pople
(of the University of Pittsburgh), building on Pople's years of interviews with Dr. Jack Meyers
, one of the top internal medicine
diagnosticians and a professor at the University of Pittsburgh
. Their motivation was an intent to improve on MYCIN
- which focused on blood
-borne infectious bacteria
- to focus on more comprehensive issues than a narrow field like blood poisoning
(though it would do it in a similar manner); instead embracing all internal medicine. CADUCEUS eventually could diagnose ~1000 diseases.
While CADUCEUS worked using an inference engine similar to MYCIN's, it made a number of changes (like incorporating abductive reasoning) to deal with the additional complexity of internal disease- there can be a number of simultaneous diseases, and data is generally flawed and scarce.