Research on Ontology Querying and Inference
YU Shu-liang · Computer Technology and Development · 2012
Nowadays,computer network is widely used in various aspects of life.But searching for what people need from the mass information has a lot of questions.Consequently,the concept of ontology has appeared.And then ontology querying and inference is the important component of the application based on ontology.The purposes of this research are to make the knowledge to the fullest expression and querying the information more accurate and complete.Firstly,introduced the concept of ontology and constructed an ontology model.Then used ontology query language,SPARQL,to query the existed model.And also used SWRL to extend the semantic rules.Finally,introduced Jena with which obtained more knowledge by reasoning on the model.Thus concluded,in the process of querying and inference with SPARQL and Jena,inference could develop the ability of querying,and the rules were the key to increase the power of inference.