9873 search results - page 1943 / 1975 » Emergent Semantics Systems |
SIGMOD
2007
ACM
14 years 8 months ago
2007
ACM
Querying XML effectively and efficiently using declarative languages such as XQuery and XPath has been widely studied in both academic and industrial settings. Most RDBMS vendors ...
SIGMOD
2007
ACM
14 years 8 months ago
2007
ACM
Suppose a long-running analytical query is executing on a database server and has been allocated a large amount of physical memory. A high-priority task comes in and we need to ru...
SIGMOD
2007
ACM
14 years 8 months ago
2007
ACM
Incomplete information arises naturally in numerous data management applications. Recently, several researchers have studied query processing in the context of incomplete informat...
PODS
2004
ACM
14 years 8 months ago
2004
ACM
A schema mapping is a specification that describes how data structured under one schema (the source schema) is to be transformed into data structured under a different schema (the...
PODS
2007
ACM
14 years 8 months ago
2007
ACM
Schema mappings are high-level specifications that describe the relationship between two database schemas. Two operators on schema mappings, namely the composition operator and th...