A temporal analysis of QMR: abstracted temporal representation and reasoning and initial assessment of diagnostic performance trade-offs.
Proc Annu Symp Comput Appl Med Care
; : 709-15, 1994.
Article
in En
| MEDLINE
| ID: mdl-7950017
ABSTRACT
Explicit temporal representation and reasoning (TRR) in medical decision-support systems (MDSS) is generally considered to be a useful but often neglected aspect of system design and implementation. Given the great burden of explicit TRR both in knowledge acquisition and computational efficiency, developers of general-purpose large-scale systems typically utilize implicit (i.e., abstracted) forms of TRR. We are interested in understanding better the trade-offs of not incorporating explicit TRR in large general-purpose MDSS along the dimensions of system expressive power and diagnostic accuracy. In particular, we examine the types of abstracted TRR employed in QMR, a diagnostic system in the domain of general internal medicine, and the high-level effects of such an implicit treatment of time in the system's diagnostic performance. We present our findings and discuss implications for MDSS design and implementation practices.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Artificial Intelligence
/
Diagnosis, Computer-Assisted
Type of study:
Diagnostic_studies
/
Prognostic_studies
Language:
En
Journal:
Proc Annu Symp Comput Appl Med Care
Year:
1994
Document type:
Article
Affiliation country:
Panama