Hierarchical Ontology on Multi-scale Road Model for Cartographical Application

Since many differences may arise in cognition, abstraction and representation during multi-scale road network compositive modeling, this paper proposes an hierarchical ontology-based multi-scale entity-Relation modeling strategy, it considers ontology integration from the bottom level-general ontology in geographical science, to task ontology for road network features cognition, definition,abstraction, and to the top level-application this level, at which this paper proposes in detail the multi-hierarchical ontology abstraction mechanism. Based on which an Entity-Relation analysis is made systemically, including the number of entities and entity relations at each scale, as well as the relation among the entities classes from adjacent scales. And at last, using multi-scale representations of road features as an example, the feasibility of an ontology-based modeling method is verified.