224 search results - page 30 / 45 » Rewriting XPath Queries Using Materialized Views |
PODS
2004
ACM
14 years 7 months ago
2004
ACM
Data exchange is the problem of taking data structured under a source schema and creating an instance of a target schema. Given a source instance, there may be many solutions ? ta...
DAWAK
2005
Springer
14 years 1 months ago
2005
Springer
In heterogeneous data warehousing environments, autonomous data sources are integrated into a materialized integrated database. The schemas of the data sources and the integrated ...
SIGMOD
2001
ACM
14 years 7 months ago
2001
ACM
Users often need to optimize the selection of objects by appropriately weighting the importance of multiple object attributes. Such optimization problems appear often in operation...
DBISP2P
2005
Springer
14 years 1 months ago
2005
Springer
In this paper, we present the use of semantic caching in the environment of schema-based super-peer networks. Different from traditional caching, semantic caching allows the answe...
PVLDB
2010
13 years 6 months ago
2010
Independence analysis is the problem of determining whether an update affects the result of a query, e.g. a constraint or materialized view. We develop a new, modular framework fo...