409 search results - page 22 / 82 » Plan Databases: Model and Algebra |
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DEXA
2011
Springer
13 years 9 months ago
2011
Springer
In this article we present RoSeS (Really Open Simple and Efficient Syndication), a generic framework for content-based RSS feed querying and aggregation. RoSeS is based on a data-...
WEBDB
2005
Springer
15 years 3 months ago
2005
Springer
In the relational model it has been shown that the flat relational algebra has the same expressive power as the nested relational algebra, as far as queries over flat relations ...
VLDB
1992
ACM
15 years 1 months ago
1992
ACM
Research in temporal databases has mainly focused on defining temporal data models by extending existing models, and developing access structures for temporal data. Little has bee...
ER
2004
Springer
15 years 2 months ago
2004
Springer
In this paper we present a model of functional access to data that, we argue, is suitable for modeling a class of data repositories characterized by functional access, such as web ...
ADC
2003
Springer
15 years 2 months ago
2003
Springer
The Internet is going through several major changes. It has become a vehicle of Web services rather than just a repository of information. Many organizations are putting their cor...