Research on Synthesis Method of High Speed Multimedia Information Network based on The Theory of Information Engine

在现代信息网络中，大量的多媒体信息在整个网络中传输和处理。网络本身就是通信和计算机的复杂组合。有必要建立一个包含计算机的综合性网络理论、有效设计信息网络的基本方法和先进信息网络的有用应用。本研究项目集中在基础理论和应用两个重要领域。在信息网络基础理论研究方面，发展了信息引擎理论，将信息的传递与处理等同对待。该理论由信息熵和信息活力两大概念组成，它们在热机中的作用类似于物理熵和温度。本课题进行的另一项基础性研究涉及信息网络的图与网络理论研究。通过研究，导出了给定响应时间约束下信息网络的信息流理论、连接集图/元连接集图理论和资源最小化理论。这些理论对实际信息网络的设计和管理具有一定的指导意义。在应用研究方面，开展了同步和异步视频会议系统集成的新研究项目。从系统的框架设计入手，设计了包含多媒体考勤共享的综合系统，并对系统进行了功能设计。实现了原型系统，并对系统的有效性进行了评价。在实际网络环境下，结合四个视频会议系统，开发并评价了群组决策支持系统的有效工具。此外，交通管理系统在考虑视频、语音、文字等多媒体交通的情况下，注重用户满意程度。提出了新的交通管理算法，并通过多媒体网络系统仿真验证了这些管理方法的有效性。在此基础上，研究了移动计算环境下基于相同概念的交通管理系统。此外，开发了系统/网络管理系统，不仅可以管理网络资源，还可以管理应用层、用户层和主机层的各种资源。少

In modern information networks, a large amount of multimedia information is transferred and processed throughout the network. Networks per se are complex combinations of communications and computers. It is necessary to establish a comprehensive theory of networks containing computers, basic methodologies for effective design of information networks and useful applications of advanced information networks. This research project has concentrated on two important areas, i.e. fundamental theory and applications.As for research on fundamental theory of information networks, a theory of information engine is developed, where transmitting and processing of information are equally treated. This theory consists of two major concepts, information entropy and information vitality, which play important roles similar to roles of physical entropy and temperature in heat engine. Another fundamental study proceeded in this research project concerns with graph and network theoretical investigation of i … More nformation network. By this study, we derived information flow theory, theory of tie-set graph / meta-tie-set graph and resource minimization theory of information network with given response time restriction. These theories will be useful for design and management of practical information network.As for research on applications, a new research project focusing on integration of synchronous and asynchronous video conferencing systems is executed. The design of the integrated system which includes multimedia minutes shared by absentees and attendants is started from the design of its framework, and its functional design is made. The prototype system is implemented and the validity of the system was evaluated. And the effective tools for group decision support systems are developed and evaluated under the real network environment connecting four video conferencing systems. In addition, the traffic management system focusing on user satisfactory level in consideration of multimedia traffic, such as video, voice and text. New traffic management algorithms are developed and the effectiveness of the management methods are clarified by the multimedia network system simulation. Furthermore, traffic management systems based on the same concept are studied under the mobile computing environments. Moreover, the system/network management system is developed for managing not only network resources but various resources of application level, user level and host level. Less