DL Techniques for Intensional Query Answering in OODBs.
Sonia Bergamaschi, Claudio Sartori, Maurizio Vincini · 1995
this paper we exploit the idea of rewriting a query not only for the semantic optimization task, as proposed by the authors in [3, 4], but also for another query-related task: intensional query answering. In particular, we focus on Object Oriented Databases and give a general definition of semantic transformation and of semantic expansion of a query. Then we will show how this concepts can be exploited in intensional query answering. 2 Semantic transformation and expansion of a query