403 search results - page 46 / 81 » Constraint Databases and Geographic Information Systems |
EDBTW
2006
Springer
15 years 3 months ago
2006
Springer
For several reasons a database may not satisfy a given set of integrity constraints (ICs), but most likely most of the information in it is still consistent with those ICs; and cou...
126
click to vote
ICDE
2012
IEEE
13 years 2 months ago
2012
IEEE
— Uncertainties in data arise for a number of reasons: when the data set is incomplete, contains conflicting information or has been deliberately perturbed or coarsened to remov...
TIME
1994
IEEE
15 years 3 months ago
1994
IEEE
This paper outlines a generic, core temporal object model that provides support for the modeling of temporal object roles. This model draws from notions introduced in some of our ...
WIDM
2003
ACM
15 years 5 months ago
2003
ACM
A growing number of databases especially those published on the Web are becoming available to external users. Users of these databases are provided simple form-based query interfa...
103
click to vote
FQAS
1998
Springer
15 years 4 months ago
1998
Springer
Abstract. With more and more electronic information sources becoming widely available, the issue of the quality of these often-competing sources has become germane. We propose a st...