1542 search results - page 22 / 309 » Redundancy in Spatial Databases |
VLDB
1995
ACM
13 years 11 months ago
1995
ACM
The paper presents (i) two similarity based methods for retrieval of pictures using indices on spatial relationships; (ii) efficient algorithms for the deduction and reduction of ...
DBPL
1999
Springer
13 years 11 months ago
1999
Springer
We consider two-dimensional spatial databases defined in terms of polynomial inequalities and focus on the potential of programming languages for such databases to express queries...
SIGMOD
2006
ACM
14 years 7 months ago
2006
ACM
The current SQL standard for access control is coarse grained, in that it grants access to all rows of a table or none. Fine-grained access control, which allows control of access...
ADC
2005
Springer
14 years 1 months ago
2005
Springer
We study the design issues of data-centric XML documents where (1) there are no mixed contents, i.e., each element may have some subelements and attributes, or it may have a singl...
ICDE
2009
IEEE
14 years 2 months ago
2009
IEEE
— To explore the benefit of advertising instant and location-aware commercials that can not be effectively promoted by traditional medium like TV program and Internet, we propos...