earticle

영어

To solve the problem of cloud resource discovery in the interconnected environment for multiple providers, a resource selection method for the multi-layer ontology is propose from the view of software developer requirements. The ontology is adopted to describe the user requirements, the resource constraint requirements and the cloud resource attribute firstly. Then, the bidimensional matching algorithm is constructed based on two principles of concept matching and attribute matching. And the resource discovery and resource selection are realized by the algorithm, combine with the ontology mapping. The method not only implements the resource selection among cloud providers, but also eliminates the implementation details in the process of resource selection. It overcomes the technical limitations of the single cloud provider. The simulation results show that the importance of the resource requirements is adopted by bidimensional matching algorithm to carry out element level matching which improves the recall and precision of resources greatly.