Land evaluation method and expert system integrating ontologe knowledge reasoning and analytical hierarchy process

Abstract

The invention relates to a land evaluation method and an expert system integrating ontologe knowledge reasoning and an analytical hierarchy process. At first, modeling is carried out on a land suitability evaluation task ontologe, and the land suitability evaluation task ontologe is read and stored in an ontology base; an expert user interface is provided, selecting and scoring of an evaluation factor are completed, evaluation factor weight evaluation is achieved by means of the analytical hierarchy process, regular formalization construction based on the ontologe is further achieved, and meanwhile storage processing is completed; on the basis, an evaluation area is selected on an evaluation application interface through a space data query interface provided by a data operation module, and evaluation unit data are read; ontologe instantiation processing is carried out on the evaluation unit data; meanwhile through an evaluation target selected by a user, evaluation rules related to the evaluation target are obtained by inquiring a rule base; an inference engine carries out binding reasoning on an ontologe knowledge model and the evaluation rules, and therefore a reasoning model is obtained; the evaluation result of a corresponding evaluation unit can be obtained through ontologe instantiation query operation on the evaluation target in the reasoning model.

Description

technical field [0001] The invention relates to the field of land use planning and knowledge engineering, in particular to an application method of an expert or knowledge base system to land use planning. technical background [0002] As the basis of land use, land resources are the main environment for the growth of various crops and play a fundamental role in land use. Land suitability evaluation is used to measure the suitability of a certain land type and use mode, which can provide a scientific basis for rational use of land according to local conditions, preparation of land use plans, and coordination of human, land, and environment relationships. has a very important role. [0003] The traditional land suitability evaluation mainly involves tedious work such as the collection and acquisition of a large amount of data required, the classification and assignment of evaluation factors, the determination of weights, and the selection of evaluation models. In the process...

AI Technical Summary

Problems solved by technology

Although there are many methods of land suitability evaluation, due to the complex factors affecting land quality, some factors and land attribute data are difficult to describe quantitatively, which makes the development of land suitability evaluation difficult; on the other hand, many agricultural workers And experts in land and agronomy have accumulated a lot of very effective experience and knowledge in long-term practical work

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