In the contexts of data integration and data exchange, schema mappings are primarily used for query answering. As a consequence, their maintenance and, in particular, the detection of corrupted mappings is crucial. Corruption checking can be automatically performed by relying on an operation called type projection. This work describes an efficient algorithm for checking XML type projection, based on a characterization of type projection in terms of type simulation
XML Type Projection: A Maximum Flow Approach
SARTIANI, CARLO
2007-01-01
Abstract
In the contexts of data integration and data exchange, schema mappings are primarily used for query answering. As a consequence, their maintenance and, in particular, the detection of corrupted mappings is crucial. Corruption checking can be automatically performed by relying on an operation called type projection. This work describes an efficient algorithm for checking XML type projection, based on a characterization of type projection in terms of type simulationFile in questo prodotto:
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