Supporting Ontology-Based Semantic matching in RDBMS

Ontologies are increasingly being used to build applications that utilize domain-specific knowledge. This paper addresses the problem of supporting ontology-based semantic matching in RDBMS. Specifically, 1) A set of SQL operators, namely ONT_RELATED, ONT_EXPAND, ONT_DISTANCE, and ONT_PATH, are introduced to perform ontology-based semantic matching, 2) A new indexing scheme ONT_INDEXTYPE is introduced to speed up ontology-based semantic matching operations, and 3) System-defined tables are provided for storing ontologies specified in OWL. Our approach enables users to reference ontology data directly from SQL using the semantic match operators, thereby opening up possibilities of combining with other operations such as joins as well as making the ontology-driven applications easy to develop and efficient. In contrast, other approaches use RDBMS only for storage of ontologies and querying of ontology data is typically done via APIs. This paper presents the ontology-related functionalit...

• Type: Conference
• Year: 2004
• Where: VLDB
• Authors: Souripriya Das, Eugene Inseok Chong, George Eadon, Jagannathan Srinivasan
• Keywords: Database, Ontologies, Ontology-based Semantic Matching, Semantic Matching Operations, VLDB 2004