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PODS
2010
ACM
213views Database» more  PODS 2010»
13 years 10 months ago
Expressive languages for path queries over graph-structured data
For many problems arising in the setting of graph querying (such as finding semantic associations in RDF graphs, exact and approximate pattern matching, sequence alignment, etc.)...
Pablo Barceló, Carlos A. Hurtado, Leonid Li...
PODS
2009
ACM
134views Database» more  PODS 2009»
14 years 5 months ago
Equivalence of nested queries with mixed semantics
We consider the problem of deciding query equivalence for a conjunctive language in which queries output complex objects composed from a mixture of nested, unordered collection ty...
David DeHaan