1430 search results - page 81 / 286 » Query operations for moving objects database systems |
MDM
2005
Springer
14 years 2 months ago
2005
Springer
This paper introduces a new family of Generic and Progressive algorithms (GPAC, for short) for continuous mobile queries over mobile objects. GPAC provides a general skeleton that...
XMLSEC
2003
ACM
14 years 2 months ago
2003
ACM
As a large quantity of information is presented in XML format on the Web, there are increasing demands for XML security. Until now, research on XML security has been focused on th...
RSKT
2007
Springer
14 years 3 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 ...
CAISE
2004
Springer
14 years 2 months ago
2004
Springer
Many information systems store their objects in a relational database. If the object schema or the relational schema of an application can change often or in an independent way, it...
ICEIS
2003
IEEE
14 years 2 months ago
2003
IEEE
Abstract: The work described in this article arises from two needs. First, there is still a need for providing more sophisticated database systems than just relational ones. Second...