Schema free interface and the analysis of semantic datasets

DBpedia is a project aiming to extract structured content from the information created as part of the Wikipedia. DBpedia extracts factual information from Wikipedia pages, allowing users to find answers to questions where the information is spread across many different Wikipedia articles. This information is present in the form of RDF data that is accessed using SPARQL query language thus making it difficult for naive users to retrieve the contents from the semantic datasets available over the web like DBpedia. The schema free querying approach allows users to search information from a single semantic dataset without querying the dataset with Sparql queries. It would be convenient if we provide an interactive interface to naive users for accessing this semantic data. To achieve this, we have a schema free interface where users can insert their search query in the form of nodes and links between nodes. This interface will further sort the available semantic datasets to find the most relevant datasets to be provided to the `Schema free querying of semantic data' system. The Lucene Api implemented in Java is being used for the quick indexing and searching of the big datasets like DBpedia, DBLP, LinkedMDB to find the most relevant datasets for the user query.