750 search results - page 20 / 150 » Aggregates in Possibilistic Databases |
SIGMOD
2010
ACM
13 years 11 months ago
2010
ACM
In this paper, we propose an online aggregation system called COSMOS (Continuous Sampling for Multiple queries in an Online aggregation System), to process multiple aggregate quer...
PODS
2010
ACM
13 years 11 months ago
2010
ACM
This paper approaches the incremental view maintenance problem from an algebraic perspective. We construct a ring of databases and use it as the foundation of the design of a quer...
NAR
2011
13 years 1 months ago
2011
The polyglutamine diseases are caused in part by a gain-of-function mechanism of neuronal toxicity involving protein conformational changes that result in the formation and deposi...
DBPL
1997
Springer
13 years 11 months ago
1997
Springer
We examine the power of incremental evaluation systems that use an SQL-like language for maintaining recursively-de ned views. We show that recursive queries such as transitive clo...
SIGMOD
2006
ACM
14 years 6 months ago
2006
ACM
Although it has been acknowledged for many years that querying and updating time-varying information using standard (i.e., non-temporal) SQL is a challenging task, the proposed te...