525 search results - page 36 / 105 » On Query Algebras for Probabilistic Databases |
134
Voted
DBPL
1991
Springer
15 years 7 months ago
1991
Springer
We propose a programming paradigm that tries to get close to both the semantic simplicity of relational algebra, and the expressive power of unrestricted programming languages. It...
113
Voted
EDBT
2010
ACM
15 years 10 months ago
2010
ACM
Querying non-conventional data is recognized as a major issue in new environments and applications such as those occurring in pervasive computing. A key issue is the ability to qu...
258
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ICDE
2009
IEEE
16 years 5 months ago
2009
IEEE
Abstract-- In sensor environments and moving robot applications, the position of an object is often known imprecisely because of measurement error and/or movement of the object. In...
116
Voted
DBPL
2003
Springer
15 years 8 months ago
2003
Springer
The increased usage of mobile devices coupled with an unprecedented demand for information has pushed the scalability problem of pull-based data service to the focus. A broadcast ...
122
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VLDB
2004
ACM
15 years 9 months ago
2004
ACM
We study the fundamental limitations of relational algebra (RA) and SQL in supporting sequence and stream queries, and present effective query language and data model enrichments ...