Semantic Web Information Retrieval in XML by mapping to RDF schema

Building systems in which knowledge can be shared in an ad hoc, distributed environment is one of the promises of Semantic Web. Mappings between disparate models are fundamental to any application that requires interoperability between heterogeneous data and applications. This paper intends to develop web information extraction technique using semantic technology. This system presents an approach to extract and integrate information from unstructured documents (e.g. HTML) and is converted to standard format (XML) by using ontology. A mapping technique will be used to automatically generate RDF descriptions from XML documents and the system will create RDF Sitemap which will provide more efficient and effective for Information Retrieval (IR).