Further Development of Theories and Methods on Attribute Uncertainty in GIS
GIS中属性不确定性的处理方法及其发展

Attribute uncertainty can directly affect the quality of GIS-based decision making. In this paper, the theories and methods to study the attribute uncertainty and their developments are discussed. And a number of theories and methods have been developed to deal with attribute uncertainties. These may include, for example, GIS-based models; probability theory and statistics-based statistical theories; fuzzy sets, rough sets and cloud theory based soft computing. These theories and methods for describing attribute uncertainties in GIS data are reviewed and analyzed. Furthermore, the future developments of the research in these areas are also briefly summarized.