ontoqa：本体论的评价和验证

OntoQA is a feature-based method for evaluating ontologies. OntoQA"s main characteristic that distinguishes it from other ontology quality tools is that it works on populated ontologies, in addidtion to schemas, thus enabling it from utilizing knowledge represented in the instances to gain a better measure of the quality of the ontology. OntoQA also uses much simpler techniques compared to others in that it doesn"t require a lot of training as user involvement is minimal. In OntoQA, metrics (features) are divided into two groups: schema metrics that address the design of the ontology schema and instance metrics that address the way instances are organized within the ontology.