Sub-ontology mapping based web services discovery framework

In order to improve the efficiency of semantic web service discovery and overcome the ontology heterogeneity problem in distributed environment. This paper proposed a sub-ontology mapping based framework for the discovery of web services, and then presented a discovery algorithm that supports the service discovery across the ontologies. In this framework, sub-ontology extraction module was introduced to reduce the ontology mapping scale. The sub-ontology was extracted from the reference ontology through the extraction concept set of service functional description information. The experimental results confirm the viability and efficiency of the discovery system.