Concept - Based Semantic Annotation Indexing and Retrieval for E-Learning Web Documents

E-learning is the technology enables the people to access the information anytime and anywhere. E-Learning is just-in-time learning grown from the new learning requirements. "Semantic Web" is an enhancement of WWW architecture that provides content with formal semantics. The semantic web technology can be applied in different areas. E-Learning is one of the areas in which can benefitted by semantic web technology. This can be done by two folds, gathering the materials and creating semi-automatic annotation for the e-learning materials. After annotation, with the help of metadata, the annotation-ontology knowledge base defined for the documents and clustering is used when there are same concepts coming under the hierarchy. Whenever the user searches the query, it compared with the defined ontology present in the knowledge base. The user query and the defined ontology are matched the user are presented with the required documents and if not matched the query is refined.