265 search results - page 31 / 53 » Tree-width and functional dependencies in databases |
KR
2004
Springer
14 years 1 months ago
2004
Springer
Simple Conceptual Graphs (SGs) are used to represent entities and relations between these entities: they can be translated into positive, conjunctive, existential first-order log...
PVLDB
2008
13 years 7 months ago
2008
Dirty data is a serious problem for businesses leading to incorrect decision making, inefficient daily operations, and ultimately wasting both time and money. Dirty data often ari...
PODS
2003
ACM
14 years 7 months ago
2003
ACM
We formalize the problem of maintaining time-decaying aggregates and statistics of a data stream: the relative contribution of each data item to the aggregate is scaled down by a ...
XIMEP
2005
ACM
14 years 1 months ago
2005
ACM
We report on a compilation procedure that derives relational algebra plans from arbitrarily nested XQuery FLWOR blocks. While recent research was able to develop relational encodi...
DEXAW
2004
IEEE
13 years 11 months ago
2004
IEEE
Nowadays, many different organizations which operate in the Web distributed environment become more and more dependent on services to automate their activities and to improve thei...