Autor:	Chi-Wai Fung, Elvis Wai Chung Leung, Qing Li
Rok vydání:	2003
Předmět:	Class (computer programming) Database Computer Networks and Communications Hardware and Architecture Computer science business.industry Media Technology Information system The Internet business computer.software_genre computer Software
Zdroj:	Multimedia Tools and Applications. 20:25-49
ISSN:	1380-7501
DOI:	10.1023/a:1023418316038
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::57f3fc0d3edf6e76da890b01f4137b2c https://doi.org/10.1023/a:1023418316038 Zobrazit plný text záznamu Full text from SpringerLink