Fw: CAP use case - Reasoning on Weighted Condition and Fuzzy Reasoning?

I am forwarding this discussion at ACPP to the HCLS list, hope to get some 
input on this tread.

----- Forwarded by Helen Chen/AMPJB/AGFA on 09/26/2006 04:53 PM -----

Helen Chen/AMPJB/AGFA 
09/26/2006 08:30 AM

To
Chimezie Ogbuji
cc
cebarr01@yahoo.com, aziz@boxwala.com, sam.brandt@siemens.com, 
THONGSERMEIER@PARTNERS.ORG, ogbujic@bio.ri.ccf.org, 
davide@landcglobal.com, DAN.RUSSLER@ORACLE.COM
Subject
CAP use case






Hi, Chimezie

As per our discussion last Tcon, here is the Guideline for Managing 
Community Acquired Pneumonia (CAP). 

http://www.guideline.gov/summary/summary.aspx?doc_id=9398&nbr=005034&string=community+AND+acquired+AND+pneumonia

The algorithm is here : 

http://www.guideline.gov/algorithm/5034/NGC-5034_1.html

Notice in the step 3, it says:

3: "Obtain chest X-ray, especially if patient has two or more of these 
signs:
   Temp > 100F
   Pulse > 100
   Decreased breath sounds
   Rales
   Respiratory rate > 20

Now we are facing the new problem of modelling "two or more" facts of a 
necessary condition for "order chest X-ray" in the knowledge base. 
Furthermore, doctors will likely tell you that no only they need to 
express "at least two or more", they also want to express "fact A carries 
more weight or more indicative to a diagnosis than fact B".  If we were to 
model these "weighted condition", we are opening a whole can of new worms, 
and I don't think any SW reasoners now can do reasoning on this.