843 search results - page 35 / 169 » Generic Schema Mappings |
FOGA
1998
14 years 11 months ago
1998
We analyze the schema theorem and the building block hypothesis using a recently derived, exact schemata evolution equation. We derive a new schema theorem based on the concept of...
80
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ICDT
2010
ACM
15 years 7 months ago
2010
ACM
It is known that the composition of schema mappings, each specified by source-to-target tgds (st-tgds), can be specified by a secondorder tgd (SO tgd). We consider the question of...
60
Voted
IPMU
1994
Springer
15 years 1 months ago
1994
Springer
A new chaotic mechanism is found to cause perspective reversal for ambiguious patterns. And the new senario to cause perspective reversal is proposed with use of chaos, by reexamin...
135
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SIGMOD
2008
ACM
15 years 9 months ago
2008
ACM
Schema mappings are logical assertions that specify the relationships between a source and a target schema in a declarative way. The specification of such mappings is a fundamenta...
66
Voted
CSMR
2005
IEEE
15 years 3 months ago
2005
IEEE
Object-oriented applications are difficult to extend and maintain, due to the presence of implicit dependencies in the inheritance hierarchy. Although these dependencies often co...