The method of data mining for landforms using double inverse mapping

In order to excavate incomplete landform information data, landform information is described as a topological space, the double inverse mapping space will be made as the target information space which is homeomorphism with original space by using mapping method. Then the similarity between original information space and target information space is analyzed by using topological transitivity to realize data mining of incomplete landforms information. This article combines with the slope and direction respectively to simulate the landform factors between original information and target information and compare them. Experimental test shows that this method is accurate.