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» Querying semantic web data with SPARQL
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IDEAS
2005
IEEE
111views Database» more  IDEAS 2005»
15 years 5 months ago
Evaluation of Queries on Tree-Structured Data Using Dimension Graphs
The recent proliferation of XML-based standards and technologies for managing data on the Web demonstrates the need for effective and efficient management of treestructured data....
Theodore Dalamagas, Dimitri Theodoratos, Antonis K...
EKAW
2010
Springer
14 years 10 months ago
Scaling Up Question-Answering to Linked Data
Linked Data semantic sources, in particular DBpedia, can be used to answer many user queries. PowerAqua is an open multi-ontology Question Answering (QA) system for the Semantic We...
Vanessa Lopez, Andriy Nikolov, Marta Sabou, Victor...
SEMWEB
2010
Springer
14 years 9 months ago
Time-Oriented Question Answering from Clinical Narratives Using Semantic-Web Techniques
The ability to answer temporal-oriented questions based on clinical narratives is essential to clinical research. The temporal dimension in medical data analysis enables clinical r...
Cui Tao, Harold R. Solbrig, Deepak K. Sharma, Wei-...
GEOINFORMATICA
2011
14 years 6 months ago
Functional description of geoprocessing services as conjunctive datalog queries
Discovery of suitable web services is a crucial task in Spatial Data Infrastructures (SDI). In this work, we develop a novel approach to the discovery of geoprocessing services (WP...
Daniel Fitzner, Jörg Hoffmann, Eva Klien
ESWS
2010
Springer
15 years 3 months ago
Scalable and Parallel Reasoning in the Semantic Web
Abstract. The current state of the art regarding scalable reasoning consists of programs that run on a single machine. When the amount of data is too large, or the logic is too com...
Jacopo Urbani