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» Perspectives on ontology-based querying
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SEMCO
2008
IEEE
14 years 2 months ago
TcruziKB: Enabling Complex Queries for Genomic Data Exploration
We developed a novel analytical environment to aid in the examination of the extensive amount of interconnected data available for genome projects. Our focus is to enable ity and ...
Pablo N. Mendes, Bobby McKnight, Amit P. Sheth, Je...
SIGMOD
2011
ACM
221views Database» more  SIGMOD 2011»
12 years 10 months ago
Scalable query rewriting: a graph-based approach
In this paper we consider the problem of answering queries using views, which is important for data integration, query optimization, and data warehouses. We consider its simplest ...
George Konstantinidis, José Luis Ambite
IDEAS
2003
IEEE
102views Database» more  IDEAS 2003»
14 years 27 days ago
Pushing Quality of Service Information and Requirements into Global Query Optimization
In recent years, a lot of research effort has been dedicated to the management of Quality of Service (QoS), mainly in the fields of telecommunication networks and multimedia syste...
Haiwei Ye, Brigitte Kerhervé, Gregor von Bo...
ESWS
2010
Springer
14 years 12 days ago
Facet Graphs: Complex Semantic Querying Made Easy
While the Semantic Web is rapidly filling up, appropriate tools for searching it are still at infancy. In this paper we describe an approach that allows humans to access informatio...
Philipp Heim, Thomas Ertl, Jürgen Ziegler
ICDT
1999
ACM
133views Database» more  ICDT 1999»
13 years 12 months ago
A Framework for the Investigation of Aggregate Functions in Database Queries
Abstract. In this paper we present a new approach for studying aggregations in the context of database query languages. Starting from a broad de nition of aggregate function, we ad...
Luca Cabibbo, Riccardo Torlone