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

[helen . chen]

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 [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED] 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.