多媒体会议的逻辑描述模型

北京邮电大学学报 ›› 2004, Vol. 27 ›› Issue (6): 16-20.

多媒体会议的逻辑描述模型

魏强, 苏森, 陈俊亮

北京邮电大学网络与交换国家重点实验室, 北京100876

收稿日期:2004-09-02 出版日期:2004-06-28
作者简介: 魏强(1979—),男,博士生。E-mail:hello_{_}weiqiang@263.net;陈俊亮(1933—),男,中国科学院院士,中国工程院院士,博士生导师。E-mail: chjl@bupt.edu.cn
基金资助:
国家自然科学基金项目(90204007)

Logic Based Description Model for Multimedia Conferencing

WEI Qiang, SU Sen, CHEN Jun-liang

State Key Laboratory of Networking and Switching, Beijing University of Posts and Telecommunications,
Beijing 100876, China

Received:2004-09-02 Online:2004-06-28

摘要/Abstract

摘要： 为了对多媒体会议的内在逻辑结构进行描述和研究,提出了一个基于媒体关系和依存关系的逻辑描述模型,对该模型进行了形式化和非形式化的定义,分析了模型内基于上述2种关系的语义规则,并给出了从语义规则和模型结构2方面对模型进行扩展的机制。作为验证,使用该模型对一个多媒体会议的具体实例进行了描述。分析和实践均表明,该模型不但能够清晰而严格地描述多媒体会议中的媒体关系结构和逻辑联系结构,而且还可以通过灵活的扩展机制,适用于各种大规模的、复杂机构的、特定情景的多媒体会议系统。

关键词: 多媒体会议, 描述模型, 形式化方法

Abstract: The inner logical structure of multimedia conferencing is studied. A logical description model basing on media relationships and dependency relationships is proposed with both formal and non-formal methods. The semantic rules of the model are also given. Then the expansion mechanisms of themodel are studied, including both semantic extensions and structural extensions.As a verification, a sample multimedia conference scenario is described using proposed model. Both practices and analyses have shown that this model can fullymeet the requirements on its functionality, expressivity and extensibility.

Key words: multimedia conferencing/conference, description model, formal methods

中图分类号:

TN916.2

魏强, 苏森, 陈俊亮. 多媒体会议的逻辑描述模型[J]. 北京邮电大学学报, 2004, 27(6): 16-20.

WEI Qiang, SU Sen, CHEN Jun-liang. Logic Based Description Model for Multimedia Conferencing[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2004, 27(6): 16-20.