SAFIRE: towards standardized semantic rich image annotation
AMR'06 Proceedings of the 4th international conference on Adaptive multimedia retrieval: user, context, and feedback
GMQL: A graphical multimedia query language
Knowledge-Based Systems
Relation-collapse: an optimisation technique for the similarity algebra SA
ADBIS'05 Proceedings of the 9th East European conference on Advances in Databases and Information Systems
Query language for complex similarity queries
ADBIS'12 Proceedings of the 16th East European conference on Advances in Databases and Information Systems
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The visual database query language QBE (query by example) is a classical, declarative query language based on the relational domain calculus. However, due to insufficient support of vagueness QBE is not an appropriate query language for formulating similarity queries required in the context of multimedia databases. In this work we propose the query language WS-QBE which combines a schema to weight query terms as well as concepts from fuzzy logic and QBE into one language. WS-QBE enables a visual, declarative formulation of complex similarity queries. The semantics of WS-QBE is defined by a mapping of WS-QBE queries onto the similarity domain calculus SDC which is proposed here, too.