118 search results - page 6 / 24 » The t4sql temporal query language |
DBPL
2001
Springer
14 years 2 months ago
2001
Springer
Abstract. We address a fundamental question concerning spatio-temporal database systems: “What are exactly spatio-temporal queries?” We define spatio-temporal queries to be co...
ICDE
1998
IEEE
14 years 11 months ago
1998
IEEE
The association of timestamps with various data items such as tuples or attribute values is fundamental to the management of time-varying information. Using intervals in timestamp...
SIGMOD
2003
ACM
14 years 10 months ago
2003
ACM
This paper presents a novel strategy for temporal coalescing. Temporal coalescing merges the temporal extents of value-equivalent tuples. A temporal extent is usually coalesced of...
DASFAA
2011
IEEE
13 years 1 months ago
2011
IEEE
Spatio-temporal uncertainty is a special feature of moving objects due to the inability of precisely capturing or predicting their continuously changing locations. Indeterminate lo...
WIDM
2006
ACM
14 years 3 months ago
2006
ACM
The preservation of digital artifacts represents an unanswered challenge for the modern information society: XML and its query languages provide an effective environment to addre...