Title

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

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