THE APPLICATION RESEARCH OF KNOWLEDGE DISCOVERY TECHNIQUES BASED ON ROUGH SET IN DECISION SUPPORT

摘要

With the application and development of science and technology, the tremendous amount of spatial and nonspatial data have been stored in large spatial data bases. Analysing them for decision is badly in need of spatial data mining and knowledge discovery to provid knowledge. In recent years, some efforts in knowledge discovery have focused on applying the rough set method to knowledge discovery. In this paper, the application of knowledge discovery method based on rough set in land use decision support system is discussed. First the characteristic and development of knowledge discovery method based on rough set are briefly stated. Second, the characteristic of spatial data in GIS is discussed. Third, a knowledge discovery method based on rough set is put forward in land use decision support system. The procedures for this method, the algorithm and key matters are also analyzed. Finally, rules extracted by the method shows a good result. This method has solved the problem of obtaining the decision rule in DSS effectively.