57 search results - page 8 / 12 » Design and Implementation of a Temporal Extension of SQL |
SIGMOD
2010
ACM
14 years 9 days ago
2010
ACM
In this paper, we propose an online aggregation system called COSMOS (Continuous Sampling for Multiple queries in an Online aggregation System), to process multiple aggregate quer...
ISD
1999
Springer
13 years 11 months ago
1999
Springer
The successful development of any geographic information system project needs the careful design and implementation of spatial databases via conceptual and logical data-modeling. T...
EDBT
2009
ACM
14 years 3 days ago
2009
ACM
We consider a near future scenario in which users of a Web 2.0 application, such as a social network, contribute to the application not only data, but also rules which automatical...
ICPR
2008
IEEE
14 years 1 months ago
2008
IEEE
An accurate real-time motion sensor implemented in an FPGA is introduced in this paper. This sensor applies an optical flow algorithm based on ridge regression to solve the collin...
GIS
2002
ACM
13 years 7 months ago
2002
ACM
Geographical information systems are more and more based on a DBMS with spatial extensions, which is also the case for the system described in this paper. The design and implementa...