A Task-Specific Ontology for Design and Execution of Time-Oriented Skeletal Plans

Yuval Shahar, Silvia Miksch, Peter Johnson

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Skeletal plans are a powerful way to reuse existing domain-specific procedural knowledge while leaving room for execution-time flexibility. Generic plan schemata can be instantiated and refined dynamically by the executing agent over significant periods of time and in highly dynamic environments. In the Asgaard project, we are investigating a set of tasks that support the execution of skeletal plans by a human executing agent, other than the original plan designing agent. We are developing task-specific problem-solving methods that perform these tasks in multiple clinical domains, given an instance of a clinical guideline plan and an electronic medical patient record. We point out the domain-specific knowledge roles required by each problem-solving method, and present a text-based, machine-readable language, called Asbru, to represent and to annotate execution plans. We represent explicitly the intentions underlying these plans, as temporal patterns to be achieved or avoided. We introduce an automated knowledge-acquisition tool for clinical guidelines, which we generated, using the PROTEGE-II framework’s suite of tools, from the shared (global) ontology of the methods.
Original languageEnglish GB
Title of host publicationProceedings of the 10th Knowledge Acquisition for Knowledge-Based Systems Workshop
StatePublished - 1996


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