Extending the E-R concepts to capture natural language semantics for database access
Frank S. C. Tseng, A.L.P. Chen, Wen-Kuang Yang · 2002
Entity-relationship (E-R) concepts are extended to capture natural language semantics and develop a logical form to represent natural language queries. The logical form can be efficiently transformed into relational algebra for query execution. The whole process provides a clear and natural framework for processing natural language queries to retrieve data from database systems.>