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ER
2004
Springer
103views Database» more  ER 2004»
15 years 10 months ago
Querying Heterogeneous Spatial Databases: Combining an Ontology with Similarity Functions
This paper uses a knowledge-based approach to querying heterogeneous spatial databases based on an ontology and conceptual and attribute similarities. The ontology, which may be in...
Mariella Gutiérrez, M. Andrea Rodríg...
116
Voted
FQAS
2000
Springer
80views Database» more  FQAS 2000»
15 years 8 months ago
A Knowledge Scout for Discovering Medical Patterns: Methodology and System SCAMP
Knowledge scouts are software agents that autonomously synthesize knowledge of interest to a given user (target knowledge) by applying inductive database operators to a local or di...
Kenneth A. Kaufman, Ryszard S. Michalski
EDBT
2009
ACM
132views Database» more  EDBT 2009»
15 years 11 months ago
A novel approach for efficient supergraph query processing on graph databases
In recent years, large amount of data modeled by graphs, namely graph data, have been collected in various domains. Efficiently processing queries on graph databases has attracted...
Shuo Zhang, Jianzhong Li, Hong Gao, Zhaonian Zou
CORR
2008
Springer
107views Education» more  CORR 2008»
15 years 4 months ago
Semantics and Evaluation of Top-k Queries in Probabilistic Databases
Abstract. We study here fundamental issues involved in top-k query evaluation in probabilistic databases. We consider simple probabilistic databases in which probabilities are asso...
Xi Zhang, Jan Chomicki
158
Voted
ICDT
2003
ACM
202views Database» more  ICDT 2003»
15 years 9 months ago
Condensed Representation of Database Repairs for Consistent Query Answering
Abstract. Repairing a database means bringing the database in accordance with a given set of integrity constraints by applying modifications that are as small as possible. In the ...
Jef Wijsen