255 search results - page 13 / 51 » Provenance in databases |
WWW
2004
ACM
14 years 8 months ago
2004
ACM
This paper explains our research and implementations of manual, automatic and deep annotations of provenance logs for e-Science in silico experiments. Compared to annotating gener...
ICDT
2009
ACM
14 years 8 months ago
2009
ACM
We study containment and equivalence of (unions of) conjunctive queries on relations annotated with elements of a commutative semiring. Such relations and the semantics of positiv...
GVD
2004
13 years 8 months ago
2004
Caching is a proven means to improve scalability and availability of software systems as well as to reduce latency of user requests. In contrast to Web caching where single Web ob...
DASFAA
2009
IEEE
14 years 2 months ago
2009
IEEE
Abstract. With the increased need of data sharing among multiple organizations, such as government organizations, financial corporations, medical hospitals and academic institution...
CL
2000
Springer
13 years 11 months ago
2000
Springer
In this paper, an algorithm for obtaining consistent answers to queries posed to inconsistent relational databases is presented. The algorith is proven to be sound, terminating and...