Acquisition and Representation of Causal and Temporal Knowledge in Medical Domains

In medical domains,a detailed model of diseases is neces- sary in order to provide useful explanations about the patient evolution. There are domains,for example Intensive Care Units (ICU),in which the temporal dimension plays an essential role in describing patient evo- lution over time. The inclusion of the temporal dimension in describing the diseases causal relations increases the problems associated to the so- called knowledge acquisition (KA) bottleneck. A KA tool is presented in this work to overcome these difficulties. This tool is built over the causal and temporal model ontology and the domain ontology,provid- ing graphical wizards to guide the user through the KA process and to specify ontology mappings. Finally,the resulting knowledge base (KB) is physically implemented in Extensible Markup Language (XML) allowing an automatic diffusion of the KB throughout Internet.