关键词: 粗糙本体, 粗糙概念, 粗糙概念格, 粗糙概念树

Abstract: Rough ontology is a basic tool to handle imprecise information. Its form is a tree structured by the rough concept and the rough relation. The specific form of rough ontology presents the multiplicity because the different domain experts participate in constructing it, but the structure of rough concept lattice also composed of the rough concept and the rough relation is unique. The rough ontology construction can use similarity of the composition and the structure of lattice and tree. Construct a rough concept lattice; transform it to a rough ontology. This paper discusses the steps of a lattice-tree converse method: construct a rough concept lattice; cluster rough concepts in the rough concept lattice to generate a rough concept tree; transform the rough concept tree for a rough ontology. A constructing example illustrates the concrete application of the lattice-tree conversion method.

Key words: rough ontology, rough concept, rough concept lattice, rough concept tree