A temporal analysis of QMR: Abstracted temporal representation and reasoning and initial assessment of diagnostic performance trade-offs
Aliferis CF, Cooper GF, Bankowitz R. A temporal analysis of QMR: Abstracted temporal representation and reasoning and initial assessment of diagnostic performance trade-offs. In: Proceedings of the Symposium on Computer Applications in Medical Care (1994) 709–716.
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 generalpurpose 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 ofgeneral internal medicine, and the high-level effects ofsuch an implicit treatment of time in the system's diagnostic performance. We present ourfindings and discuss implications for MDSS design and implementation practices