RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2007, Vol. 16 >> Issue (3): 323-323.

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EXPERT INFORMATION SYSTEM FOR LAND GRADING ON THE BASIS OF GIS AND SDM INTEGRATION 

JIA Zelu1,2    

  • Received:2006-04-06 Revised:2006-05-08 Online:2007-05-20

Abstract:

A brief introduction to Geographic Information System (GIS) and Spatial Data Mining (SDM) was given in this paper, and an integration of the two techniques applied in the information system for land grading was proposed. Then an expert system was developed for land grading on the basis of GIS and SDM by using Visual C++ 6.0 and MapObject 2.0.Decision tree was adopted for the base arithmetic of the spatial data mining of the system, and land grading adopted for training and learning and the integration of the two for practical realization. The decision tree can acquire knowledge and at the same time, it can express knowledge, and the system uses it to acquire knowledge and express knowledge automatically. Also, an application example for commercial land grading in Wuhan City was presented in this paper to show that the system is a transplantable and practical as well as an extensible system. The work of land grading has become a simple job to use this system, and the results become more reliable. Moreover, this method has some particular advantages in addressing problems in land grading such as lack of land information and difficulties in quantitative analysis of factors.

Key words: geographical information system(GIS), spatial data mining(SDM), decision tree, land grading, visualization, interaction, spatial classification

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