2514 search results - page 48 / 503 » On the Computation of Approximations of Database Queries |
255
click to vote
SIGMOD
2006
ACM
16 years 6 months ago
2006
ACM
Modern scientific applications consume massive volumes of data produced by computer simulations. Such applications require new data management capabilities in order to scale to te...
194
click to vote
ICDE
2010
IEEE
16 years 6 months ago
2010
IEEE
Many web databases can be seen as providing partial and overlapping information about entities in the world. To answer queries effectively, we need to integrate the information abo...
261
click to vote
ICDE
2006
IEEE
16 years 7 months ago
2006
IEEE
Database columns are often correlated, so that cardinality estimates computed by assuming independence often lead to a poor choice of query plan by the optimizer. Multidimensional...
267
click to vote
SIGMOD
2005
ACM
16 years 6 months ago
2005
ACM
Although integrity constraints have long been used to maintain data consistency, there are situations in which they may not be enforced or satisfied. In this paper, we present Con...
287
click to vote
GIS
2007
ACM
16 years 7 months ago
2007
ACM
Handling streams of positional updates from numerous moving objects has become a challenging task for many monitoring applications. Several algorithms have been recently proposed ...