Query Evaluation in an Object-Oriented Multimedia Mediator
نویسندگان
چکیده
A multimedia mediator aims at providing a well-structured gateway to some application dependent part of a federated multimedia system. Our specific design employs proxy objects for external multimedia items and introduces a new concept of semi-structured and self-describing types for multimedia items. Query evaluation and optimization hide all details of communication with external sources and explore the external parallel computation capacities, the selectivity of local preprocessing, and the impact of materialization.
منابع مشابه
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