Abstract
Semantic web document representation is formulated using RDF/OWL. RDF representation is in the form of triples & OWL in form of ontologies. The above representation leads to a data set which needs to be queried using software agents, machines. W3C has recommended SPARQL to be the de facto query language for RDF. This paper proposes to suggest a model to enable SPARQL to make search efficient, easier and produce meaningful search distinguished on the basis of preposition. An RDF data source primarily consist of data that is represented in the form of a Triple pattern which has an appropriate RDF syntax and further results into an RDF Graph .The RDF repository stores the Data on Subject, Predicate, Object Model. The Predicate may also be thought of as a property linking the Subject and Object. This paper shall evaluate the information retrieval by incorporating preposition as property.
Highlights
“SPARQL is a query language for RDF data on the semantic web with formally defined meaning” [1]
This paper has primarily described how RDF data store need to be represented as a schema in which the prepositions will be used as properties
The properties will be interpreted by the SPARQL engines
Summary
“SPARQL is a query language for RDF data on the semantic web with formally defined meaning” [1]. SPARQL a query language for RDF is used to return and manipulate data from databases that are stored in Resource Description Format. A lot has been researched on SPARQL and its query support to RDF repositories it is of concern that no headway has been achieved in the semantic search based on preposition. (1) Introduction (2) PL/SQL approach to preposition based search (3) SPARQL querying the RDF repository (4) Incorporating prepositions in triple patterns (5) Conclusion. The below described approach is based on PL/SQL whereby that we have developed a function prep by CREATE FUNCTION func_prep This function takes an argument which is the preposition “on” from the search pattern "Books on Steganography" the two keywords (Books, Steganography) can be interpreted by the search engine thru metadata definition but it is important to identify the existence of the preposition “on”. @se nvarchar(20) ) RETURNS int AS BEGIN declare @flag int set @flag=0 if @se='on' begin set @flag=1 end if @se='before' begin set @flag=1 end RETURN @flag
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