201 search results - page 28 / 41 » Extending the Relational Algebra to Capture Complex Objects |
OTM
2007
Springer
14 years 1 months ago
2007
Springer
Abstract: This paper proposes extensions to the Object-Role Modeling approach to support schema transformations that eliminate unneeded columns that may arise from standard relatio...
LREC
2010
13 years 9 months ago
2010
In the first part of this paper, we present a framework for enriching arbitrary upper or domain-specific ontologies with a concept of time. To do so, we need the notion of a time ...
ECCV
2002
Springer
14 years 9 months ago
2002
Springer
Abstract. This paper proposes a solution for the automatic detection and tracking of human motion in image sequences. Due to the complexity of the human body and its motion, automa...
DEXAW
1999
IEEE
14 years 2 days ago
1999
IEEE
ing spatio-temporal data as abstract data types into already existing data models is a promising approach to creating spatio-temporal query languages. In this context, an importan...
VLDB
1999
ACM
14 years 12 hour ago
1999
ACM
We present an optimization method and algorithm designed for three objectives: physical data independence, semantic optimization, and generalized tableau minimization. The method ...