889 search results - page 29 / 178 » A Method for Secure Query Processing in Mobile Databases |
SIGMOD
2003
ACM
15 years 9 months ago
2003
ACM
In this paper we propose an approach that enables mobile clients to determine the validity of previous queries based on their current locations. In order to make this possible, th...
WEBDB
2009
Springer
15 years 4 months ago
2009
Springer
Various approaches have been recently proposed for storing the evolution of an XML document, thereby preserving useful past information about the document and thus the ability to ...
ICDT
1999
ACM
15 years 1 months ago
1999
ACM
Abstract. In this paper we consider databases representing information about moving objects (e.g. vehicles), particularly their location. We address the problems of updating and qu...
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ICDE
2004
IEEE
15 years 11 months ago
2004
IEEE
Several spatio-temporal applications require the retrieval of summarized information about moving objects that lie in a query region during a query interval (e.g., the number of m...
95
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WAIM
2010
Springer
14 years 7 months ago
2010
Springer
Keyword search in relational databases has been widely studied in recent years. Most of the previous studies focus on how to answer an instant keyword query. In this paper, we focu...