"Mussab" . . "Approximate patterns"@en . "Zneika" . "eab1db003b9ed1a610b11776e61d517e" . "Federated query"@en . "RDF graph summary"@en . . "Query Processing"@en . "RDF query"@en . "Linked Open Data"@en . "Mussab Zneika" . "RDF Summarization"@en .