Semi-automated approaches to support ontology development

by Mohammad Halawani

16:00 (40 min) in USB G.003

Ontology development requires significant effort from both ontologists and domain experts. Knowledge elicited from domain experts forms the scope of the ontology. The process of knowledge elicitation is expensive, consumes experts' time and might have biases depending on the selection of the experts. Various methodologies and techniques exist for enabling this knowledge elicitation, including community groups and open development practices. A related problem is that of defining scope. By defining the scope, we can decide whether a concept (i.e. term) should be represented in the ontology. This is the opposite of knowledge elicitation, in the sense that it defines what should not be in the ontology. This can be addressed by pre-defining a set of competency questions.

These approaches are, however, expensive and time-consuming. Here, we describe our work toward an alternative approach, bootstrapping the ontology from an initially small corpus of literature that will define the scope of the ontology, expanding this to a set covering the domain; we use a rehabilitation therapy ontology (RTO) as a case study. Then using information extraction to define an initial terminology to provide the basis and the competencies for the ontology. Finally, we will use these terms and phrases as the basis for our patternised ontological scaffolds, as it has been done in the Cloud ontology.