525 search results - page 17 / 105 » On Query Algebras for Probabilistic Databases |
VLDB
1987
ACM
13 years 11 months ago
1987
ACM
A Datalog program can be translated into a system of fixpoint equations of relational algebra; this paper studies how such a system can be solved and optimized for a particular qu...
BTW
2007
Springer
14 years 1 months ago
2007
Springer
: Distributed top-k query processing is increasingly becoming an essential functionality in a large number of emerging application classes. This paper addresses the efficient alge...
IJCAI
2007
13 years 8 months ago
2007
In this paper we present an improved version of the Probabilistic Ant based Clustering Algorithm for Distributed Databases (PACE). The most important feature of this algorithm is ...
SIGMOD
2002
ACM
13 years 7 months ago
2002
ACM
A variety of developments combine to highlight the need for respecting order when manipulating relations. For example, new functionality is being added to SQL to support OLAP-styl...
JAPLL
2010
13 years 5 months ago
2010
The relational model has recently been extended to so-called K-relations in which tuples are assigned a unique value in a semiring K. A query language, denoted by RAC K , similar ...