DAGSTUHL
1993
14 years 25 days ago
1993
Abstract. We present the hybrid query language HQL/EER for an Extended Entity-Relationship model. As its main characteristic, this language allows a user to freely mix graphical an...
DAGSTUHL
1997
14 years 26 days ago
1997
DAGSTUHL
1997
14 years 26 days ago
1997
In this paper we propose a data model for representing moving objects with uncertain positions in database systems. It is called the Moving Objects Spatio-Temporal (MOST) data mod...
DAGSTUHL
1997
14 years 26 days ago
1997
This paper presents a technique for local surface extraction from scalar and vector fields using deformable surfaces. The goal of surface extraction is often to find features, o...
DAGSTUHL
1997
14 years 26 days ago
1997
Interactive rendering of large data sets requires fast algorithms and rapid hardware acceleration. Both can be improved, but none of this ensures interactive response times. If a ...
DAGSTUHL
1997
14 years 26 days ago
1997
There is a wide range of applications for which surface interpolation or approximation from scattered data points in space is important. Dependent on the field of application and...
DAGSTUHL
1997
14 years 26 days ago
1997
This survey presents several techniques for solving variants of the following scattered data interpolation problem: given a nite set of N points in R3, nd a surface that interpola...
DAGSTUHL
1997
14 years 26 days ago
1997
Analyzing structure in complex time dependent flow fields is a challenging problem. This paper describes the use of spot noise for the visualization of this type of fields. Spo...
DAGSTUHL
1997
14 years 26 days ago
1997
This paper describes and demonstrates the e ectiveness of several metrics for data level comparison of direct volume rendering (DVR) algorithms. The focus is not on speed ups from...
DAGSTUHL
1997
14 years 26 days ago
1997
Abstract. This document1 contains de nitions of a wide range of concepts speci c to and widely used within temporal databases. In addition to providing de nitions, the document als...