A Taxonomy of Semantic Web Data Retrieval Techniques

Abstract

The Semantic Web provides access to an increasing amount of structured information in a wide variety of domains. Information overload due to the large amount of structured data is as much a problem as on the traditional Web. To solve this problem, ample research has been proposed on Semantic Web data retrieval techniques and after more than a decade of research in this domain it is now reasonable to consider the questions: is the field of Semantic Web data retrieval making progress? What are the directions that have been taken? and what are some of the promising significant directions to pursue future research? To answer these questions, we review the state-of-the-art Semantic Web data retrieval techniques and define a taxonomy of these techniques to classify the ongoing research and find potential future research directions.

On the Current State of Linked Open Data

“…PublishingdataonLODrequiresfivebasicstepsincludingdatapreparation,datasetselection, pluggingintotheLODcloud,itsannouncement,andidentifyingsocialcontract ("BestPracticesfor PublishingLinkedData,"2014;"CookbookforOpenGovernmentLinkedData,"2011;Hausenblas, 2009;Peinl,2016).Figure1graphicallyillustratesthesesteps.First,thedataisconvertedtotriples. Second,thedesireddatasets(whichcouldenrichthecontent)areselected(usingthe"followyour nose"principle).Third,thedatasetispluggedintotheLODcloudforintegratingdataseamlesslyto thechosendatasetstoallowusersandmachinestoconsumeit.Fourth,thedataispublishedonaweb serverforitsuseandreuse.Finally,theimplicitsocialcontractwiththeconsumersisrecognized, whichincludestheresponsibilityofdataavailability,datafreshness,accuracy,andmaintenance ("Best PracticesforPublishingLinkedData,"2014;"CookbookforOpenGovernmentLinkedData,"2011;Hausenblas,2009).Thedetailsoftoolsforthedataextraction,transformation,storage,visualization andqualityinpublishingdataonLODcanbefoundintherelevantliterature (Bikakis,Tsinaraki, Gioldasis, Stavrakantonakis, & Christodoulakis, 2013;Butt, Haller, & Xie, 2015;Ferrara, Meo, Fiumara,&Baumgartner,2014;Gangemi,2013;Purohitetal.,2016).…”