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UniQue: An Approach for Unified and Efficient Querying of Heterogeneous Web Data Sources

Markku Laine, Jari Kleimola, Petri Vuorimaa
2016 Proceedings of the 12th International Conference on Web Information Systems and Technologies  
Therefore, we devised a unified querying (UniQue) approach and a proxy-based implementation that provides a uniform and declarative interface for querying heterogeneous data sources across the Web.  ...  Pursuing this further, we propose Unified Query Language (UQL) that combines the expressiveness of CSS Selectors and XPath into a single and flexible selector language.  ...  ACKNOWLEDGEMENTS The authors thank William Candillon and Dr. Ghislain Fourny at for their exceptional support with XQuery.  ... 
doi:10.5220/0005764100840094 dblp:conf/webist/LaineKV16 fatcat:n2mokst5wjajle5k4fqkrybzae

Survey over Existing Query and Transformation Languages

Tim Furche, François Bry, Sebastian Schaffert, Renzo Orsini, Ian Horrocks, Michael Kraus, Oliver Bolzer
To further the understanding of the requirements and approaches proposed for query languages in the conventional as well as the Semantic Web, this report surveys a large number of query languages for accessing  ...  From the detailed survey of these query languages, a common classification scheme is derived that is useful for understanding and differentiating languages within and among all three areas.  ...  We would like to thank Wolfgang May for reviewing a draft of this deliverable and providing numerous invaluable comments on how to improve both its presentation and content.  ... 
doi:10.5282/ubm/epub.14883 fatcat:ogtwjku4f5fqvjk4lvdn66zf6a