A Keyword Retrieval Semantics over Relational Databases

Abstract

Abstract Current ways can return retrieval results respond to universal sets, but a non-null subset has more redundancy as result sets. The paper presents entire semantics to retrieve relational database by keywords, it standardizes retrieval keywords for semantics. The way employs different retrieval scorers to score keywords for different keywords. The different types of retrieval algorithms are proposed based on the retrieval focus to generate linked tuple sets, which is transformed to a SQL retrieval sentence to return all query results for users. The experiments show that the way with retrieval focus avoids data redundancy well.