EDUTELLA: a P2P networking infrastructure based on RDF
Proceedings of the 11th international conference on World Wide Web
Knowledge Processes and Ontologies
IEEE Intelligent Systems
A Roadmap to Ontology Specification Languages
EKAW '00 Proceedings of the 12th European Workshop on Knowledge Acquisition, Modeling and Management
Research Commentary: Information Systems and Conceptual Modeling--A Research Agenda
Information Systems Research
A Complexity Measure for Ontology Based on UML
FTDCS '04 Proceedings of the 10th IEEE International Workshop on Future Trends of Distributed Computing Systems
Analyzing the conceptual integrity of computing applications through ontological excavation and analysis
Analyzing the Evolution of Life Science Ontologies and Mappings
DILS '08 Proceedings of the 5th international workshop on Data Integration in the Life Sciences
Estimating the Quality of Ontology-Based Annotations by Considering Evolutionary Changes
DILS '09 Proceedings of the 6th International Workshop on Data Integration in the Life Sciences
COnto-Diff: generation of complex evolution mappings for life science ontologies
Journal of Biomedical Informatics
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With the tremendous development in size, the complexity of ontology increases. Thus ontology evaluation becomes extremely important for developers to determine the fundamental characteristics of ontologies in order to improve the quality, estimate cost and reduce future maintenance. Our research examines the concepts and their hierarchy in ontology conceptual model, the common feature of most ontologies, which reflects the fundamental complexity. We suggest some well-defined metrics of complexity, which mainly examine the quantity, ratio and correlativity of concepts and relationships, to evaluate ontology from the viewpoint of complexity and evolution. In the study, we measured three ontologies in Gene Ontology to verify our metrics. The results indicate that these metrics works well, and the biological process ontology is the most complex one from the view of complexity, and the molecular function ontology is the unsteadiest one from the view of evolution.