Dynamic combination method for geographic model network services

Abstract

The invention relates to a dynamic combination method for geographic model network services. The method comprises the following steps: carrying out formalization expression on a general task of complicated geographic modeling based on HTN (Hierarchical Task Network) planning and generating a geographic modeling HTN task network set; implementing the recursion decomposition and assignment of a geographic modeling HTN task network, obtaining the geographic modeling HTN task network and assigning to corresponding modeling members; encapsulating isomerous geographic sub-models established by eachmember into the corresponding network services by adopting a web service technique and deploying each geographic sub-model network service on a sharing platform to be shared and reused; and realizingthe dynamic combination of the geographic sub-model network services by utilizing an HTN planning method and executing an engine to realize cooperative execution and computation through the dynamic combination of the geographic sub-model network services. Under the condition that the program and operation mode of each geographic sub-model are not changed, the dynamic combination method provided by the invention can realize the dynamic combination of distributed cooperative geographic model network services and has the advantages of good autonomy, encapsulation, dynamism and flexibility.

Description

technical field [0001] The invention relates to the field of earth science computing and distributed computing, in particular to a dynamic combination method of geographic model network services. Background technique [0002] Realizing the reuse, sharing and combination of geographic modeling resources can enhance the application capabilities of geographic information system (GIS, Geographic Information System) such as spatial analysis, decision support and simulation prediction. However, because geographers have differences in understanding and abstracting geographic issues, the geographic models they construct are heterogeneous in semantic, structural, and systematic levels; in addition, these geographic model resources are scattered in different scientific research institutions around the world , In the hands of experts in different fields, there is a strong distribution. The above characteristics increase the difficulty of using, sharing and integrating geographic model...

AI Technical Summary

Problems solved by technology

[0005] Technical problem: the purpose of the present invention is to overcome the deficiencies in the prior art, provide a kind of Web service encapsulation and dynamic combination method of geographic model, utilize hierarchical task network (HTN, Hierarchical Task Network) planning and network service ( Web Services) technology to realize the formal expression of geographical modeling tasks, recursive decomposition and assignment, sub-model network service encapsulation and dynamic combination, which is conducive to the collaborative execution and calculation of geographical combination model network services, and the construction of large-scale geographic combination models. Solve complex geographic problems

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