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Presence management, i.e., the ability to automatically identify the status and availability of communication partners, is becoming an invaluable tool for collaboration in enterprise contexts. In this paper, we argue for efficient presence management by means of a holistic view of both physical context and virtual presence in online communication channels. We sketch the components for enabling presence...
The following topics are dealt with: virtual environment; security; privacy; online social networks; collaborative editing; peer-to-peer; sensor networks; modeling; access control; trust; Web service; health care computing; distributed networking; collaborative architecture; and information sharing.
Distributed Virtual Environments (DVE) have become increasingly popular over the last few years. Examples of DVEs are Massively Multiplayer Online Games (MMOGs), distributed interactive simulations, and shared virtual worlds. The service providers of DVEs need to ensure that certain Quality of Service (QoS) (messages delivered within a threshold delay) is guaranteed for the users participating in...
With the growth of Massively Multiuser Virtual Environments (MMVEs) and increasingly interactive social net working platforms, it is widely accepted that their convergence renders today's centralized hosting approaches impracticable. To handle virtual environments of such massive scale, decentralized systems are necessary that also involve the resources of clients. The expedient design of techniques...
Cloud computing has drawn much attention in recent years. One of its delivery models, called infrastructure as a service (IaaS), provides users with infrastructure services such as computation and data storage, heavily dependent upon virtualization techniques that offers benefits such as elasticity and cost efficiency. Most of current IaaS service providers have adopted a user-based service model,...
Immersive and interactive Massive Multiuser Virtual Environments currently attract a lot of attention. Going beyond the hype, one discovers interesting concepts and opportunities for a supposed future Web which is commonly called the 3D Web. The global provision of such a vision is much more than just another evolutionary step in content visualization, rather severe technical challenges need to be...
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