6597 search results - page 56 / 1320 » Orderings and Types in Databases |
RSKT
2007
Springer
14 years 1 months ago
2007
Springer
Abstract. A fundamental data modeling problem in geographical information systems and spatial database systems refers to an appropriate treatment of the vagueness or indeterminacy ...
JUCS
2010
13 years 2 months ago
2010
: We initiate in this work the study of a sort of redundancy problem revealed by what we call redundant relations. Roughly, we define a redundant relation in a database instance (d...
TLCA
2009
Springer
14 years 2 months ago
2009
Springer
In this paper we solve an open problem posed in our previous work on asynchronous subtyping [12], extending the method to higher-order session communication and functions. Our syst...
TPHOL
2003
IEEE
14 years 1 months ago
2003
IEEE
This paper addresses the crucial issue in the design of a proof development system of how to deal with partial functions and the related question of how to treat undefined terms. ...
TPHOL
1997
IEEE
13 years 12 months ago
1997
IEEE
This paper describes the concept of higher order quotients and an implementation in Isabelle. Higher order quotients are a generalization of quotients. They use partial equivalence...