Automated river selection based on cartographic knowledge representation and reasoning
Wang Huilian · Journal of Liaoning Technical University · 2007
River network is one of the most important features in maps.River selection is a key operation in automated map generalization.The knowledge in automated river selection in the paper includes structural river network data,river properties and selection rules.The methods of capturing and formalizing the knowledge are studied.Following the knowledge representation,it brings up a method to build up automated selection rules-base of river.Because the process affects the final result directly,the PRI and weight of using rules are the key points.Ordinal reasoning of production rules system is applied in the river selection,which is bases on the known verity and reasons to the conclusion by rules.Then repeat this process,until got a result is got whether the river is selected.At last,a sample is designed to explain how to use this method to select rivers of a complex river network.