A pragmatic implementation of medical temporal reasoning for clinical medicine.
In most development tools for knowledge-based systems object-property-value-triples are the basic ontological representation. We have extended this approach for temporal reasoning by replacing the values with time-objects. A time-object is a combination of a value with a time-point or a time-interval. By preserving the object-property-value-triples basic artificial intelligence techniques can be applied without modifications in the temporal case. The greater complexity of temporal inferences is compensated by a blackboard control architecture enabling small knowledge-sources. The control of the strategic reasoning is in accordance with the select and test model. A prototype of a knowledge-based advisor for the acute radiation syndrome has been implemented and partially evaluated. Due to the affected proliferative tissues it is a strongly time-oriented medical domain.
Kindler
H
H
Institute for Applied Knowledge Processing, University of Ulm, Germany.
Densow
D
D
Fliedner
T M
TM
D000208:Acute Disease; D001185:Artificial Intelligence; D003198:Computer Simulation; D003661:Decision Support Techniques; D003936:Diagnosis, Computer-Assisted; D005103:Expert Systems; D006801:Humans; D010347:Patient Care Planning; D011832:Radiation Injuries / Q000175:diagnosis / Q000628:therapy; D013997:Time Factors