QBD*: A Graphical Query Language with Recursion
IEEE Transactions on Software Engineering
The Description Logic Handbook
The Description Logic Handbook
Tractable Reasoning and Efficient Query Answering in Description Logics: The DL-Lite Family
Journal of Automated Reasoning
AAAI'05 Proceedings of the 20th national conference on Artificial intelligence - Volume 4
EQL-lite: effective first-order query processing in description logics
IJCAI'07 Proceedings of the 20th international joint conference on Artifical intelligence
Journal on data semantics X
Dependencies between ontology design parameters
International Journal of Metadata, Semantics and Ontologies
Object configuration browsing in relational databases
ICFCA'11 Proceedings of the 9th international conference on Formal concept analysis
Transforming semi-structured life science diagrams into meaningful domain ontologies with DiDOn
Journal of Biomedical Informatics
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Biological scientists have made large amounts of data available on the Web, which can be accessed by canned or precomputed queries presented via web forms. To satisfy further information needs, users currently have to have a good understanding of SQL and how the data is stored in the database. While accessing information at the ontological layer seems more appropriate, this poses two challenges: (1) to query data in databases and triple stores through an ontology with little performance overhead, and (2) to provide an intuitive web-based access to users that are not IT experts. To address these issues, we draw upon the theory and technology developed for Ontology-Based Data Access for DL-Lite. With an OWL ontology and the DIG-QuOnto reasoner as building blocks, we have developed an application that allows for graphical ontology browsing, query formulation, and answer retrieval via a Web browser. We have evaluated our system for Web-ONtology baseD Extraction of Relational data (Wonder) with an existing large genomics database about horizontal gene transfer and found that it meets both the scalability and the usability requirements.