Efficient query execution techniques in a 4DIS video database system for elearning
Document Type
Journal Article
Publication Date
2003
Keywords
Multimedia eLearning video database system, Four-dimensional information space (4DIS), Temporal semantics, Vertical class partitioning
DOI
10.1023/A:1023418316038
Abstract
In this paper, we describe our work on developing an eLearning video database system. The eLearning video database provides a temporal modeling framework for describing eLearning video data and it supports data distribution by applying vertical class partitioning techniques. Building on top of our previous work on Four Dimensional Information System (4DIS)—an object-oriented temporal modeling framework, we apply vertical class partitioning techniques onto a 4DIS eLearning video database system as a means for efficient query execution. We further describe our work on dynamic fetching of multimedia eLearning video on the Internet. A detailed cost model for query execution through vertical class partitioning is developed. Finally, we demonstrate through the use of a running example the effectiveness of our vertical class partitioning approach.
Source Publication
Multimedia Tools and Applications
Volume Number
20
Issue Number
1
ISSN
1380-7501
First Page
25
Last Page
49
Recommended Citation
Fung, C.,Leung, E.,& Li, Q. (2003). Efficient query execution techniques in a 4DIS video database system for elearning. Multimedia Tools and Applications, 20 (1), 25-49. http://dx.doi.org/10.1023/A:1023418316038