2095 search results - page 397 / 419 » Modeling and Querying Semi-structured Data |
ICDT
2010
ACM
14 years 1 months ago
2010
ACM
We examine schema mappings from a type-theoretic perspective and aim to facilitate and formalize the reuse of mappings. Starting with the mapping language of Clio, we present a ty...
SSDBM
2000
IEEE
14 years 1 months ago
2000
IEEE
In implementations of non-standard database systems, large objects are often embedded within an aggregate of different types, i.e. a tuple. For a given size and access probabilit...
AGENTS
2000
Springer
14 years 29 days ago
2000
Springer
Recent research has made it possible to build information agents that retrieve and integrate information from the World Wide Web. Although there now exist solutions for modeling W...
PODS
1999
ACM
14 years 28 days ago
1999
ACM
One of the most important types of query processing in spatial databases and geographic information systems is the spatial join, an operation that selects, from two relations, all...
SSDBM
1998
IEEE
14 years 26 days ago
1998
IEEE
In several working environments, production involves repeated executions of certain procedures. A workflow describes the individual tasks performed in these procedures and their i...