Ontology Based Land Use Data Generalization

We propose a new method of the calculation of the semantic similarity of land use types based on ontology,which improves the generalization methodology of land use data by introducing ontology-based semantic similarity into polygon amalgamation.Ontology-based semantic similarity integrates human spatial cognition.The improved methodology of land use data generalization can reflect and generalize the characters of land use better.It was verified by a case study.