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» Query Answering in Inconsistent Databases
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ISEMANTICS
2010
13 years 8 months ago
An evaluation of approaches to federated query processing over linked data
The Web has evolved from a global information space of linked documents to a web of linked data. The Web of Data enables answering complex, structured queries that could not be an...
Peter Haase, Tobias Mathäß, Michael Zil...
ISCI
2007
141views more  ISCI 2007»
13 years 10 months ago
A performance comparison of distance-based query algorithms using R-trees in spatial databases
Efficient processing of distance-based queries (DBQs) is of great importance in spatial databases due to the wide area of applications that may address such queries. The most repr...
Antonio Corral, Jesús Manuel Almendros-Jim&...
EDBT
2009
ACM
207views Database» more  EDBT 2009»
14 years 1 months ago
Evaluating probability threshold k-nearest-neighbor queries over uncertain data
In emerging applications such as location-based services, sensor monitoring and biological management systems, the values of the database items are naturally imprecise. For these ...
Reynold Cheng, Lei Chen 0002, Jinchuan Chen, Xike ...
IDEAS
2007
IEEE
107views Database» more  IDEAS 2007»
14 years 4 months ago
Examining the Performance of a Constraint-Based Database Cache
Constraint-based database caching aims at correctly answering SQL query predicates from a local cache database by exploiting constraints that have previously been used in selectin...
Andreas Bühmann, Joachim Klein 0002
SUM
2009
Springer
14 years 4 months ago
An Argument-Based Approach to Using Multiple Ontologies
Abstract. Logic-based argumentation offers an approach to querying and revising multiple ontologies that are inconsistent or incoherent. A common assumption for logic-based argumen...
Elizabeth Black, Anthony Hunter, Jeff Z. Pan