Ontology learning is a process, which extracts semantic information from the existing data model and generates ontology using a set of predefined mapping rules. Relational database is the main model of data access and management, and extracting ontology from relational database is one of the research hotspots in ontology engineering field. This paper presents a proposal that aims to cover some tasks required in the ontology learning from relational database. Two tasks in this proposal are: relations abstraction between data table and semantics ...
