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Many applications in the current Internet follow the multicast paradigm, not the unicast one that has traditionally ruled the design of TCP/IP. These applications are, therefore, required to construct overlay networks for multicasting, which unfortunately offers too little efficiency to support the immanent emergence of trillions of groups. IP multicast, which is the natural implementation of the...
The modern Web architecture basically follows the Representational State Transfer (REST) style. This style offers the architectural properties necessary to implement the Internet-scale Web. However, most authentication and delegation technologies that rely on session state actually deviate from the REST style. It must be noted, however, that the diversity of these technologies is imperative for the...
An IP virtual private network using IPsec (IPsecVPN) has begun to be used as a forwarding base for cloud services. Cloud computing architecture is evolving into an inter-cloud structure that enables many cloud services to connect to each other freely. IPsecVPN applied to cloud services will increase in complexity along with the evolving cloud architecture. In this paper, we discuss the requirements...
A newly developed 3D online monitoring system provides image quality equivalent to DVD and features a new image capture method that relatively reduces the visual burden compared with conventional stereo camera systems. The remote stereo vision system (RSVS) developed by the authors synthesizes right and left images taken by the stereo cameras into single image information and is compressed using the...
This paper discusses WebELS e-learning platform for post-graduate education which supports a special type of contents i.e. slide with synchronized audio and cursor in addition to traditional multimedia contents and conceptually it is a fusion of synchronous and asynchronous e-learning system. WebELS provides a Web-based, multimedia enabled multi-platform tool, by which traditional instructors can...
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