Optimizing query answering under ontological constraints
Ontological queries are evaluated against a database com-bined with ontological constraints. Answering such queries is a challenging new problem for database research. For many ontological modelling languages, query answering can be solved via query rewriting: given a conjunctive query and an ontolo...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2011
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