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PODS
2000
ACM
113views Database» more  PODS 2000»
13 years 12 months ago
View-Based Query Processing for Regular Path Queries with Inverse
Diego Calvanese, Giuseppe De Giacomo, Maurizio Len...
ICDE
2003
IEEE
98views Database» more  ICDE 2003»
14 years 9 months ago
XPath Query Evaluation: Improving Time and Space Efficiency
Contemporary XPath query engines evaluate queries in time exponential in the sizes of input queries, a fact that has gone unnoticed for a long time. Recently, the first main
Georg Gottlob, Christoph Koch, Reinhard Pichler
EDBT
2008
ACM
150views Database» more  EDBT 2008»
14 years 7 months ago
Cost-based query optimization for complex pattern mining on multiple databases
For complex data mining queries, query optimization issues arise, similar to those for the traditional database queries. However, few works have applied the cost-based query optim...
Ruoming Jin, David Fuhry, Abdulkareem Alali
DEXAW
2007
IEEE
141views Database» more  DEXAW 2007»
14 years 1 months ago
SWARD: Semantic Web Abridged Relational Databases
The semantic web represents meta-data as a relation of triples using the RDF data model. We have developed a virtual repository system that enables to process queries to RDF views...
Johan Petrini, Tore Risch
ICDE
2006
IEEE
213views Database» more  ICDE 2006»
14 years 1 months ago
Optimization of Complex Nested Queries in Relational Databases
Due to the flexible structures of SQL, no general approach works efficiently for all kinds of queries. Some special kinds of queries can be further optimized for better performa...
Bin Cao