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This paper describes a generic architecture for agents that allows agents to adapt to dynamic environments by using a trust mechanism in conjunction with machine learning. Central parts of the architecture are an Observer/Controller loop and a trust aggregation mechanism. It is shown how this proposed architecture can be applied to agents that act on behalf of a user in a decentralised desktop grid...
In this paper we propose a meta-model for architectures with heterogeneous multimedia components. Currently, a generic solution does not exist to automatically deploy a distributed architecture based on multimedia components. The description of the incompatibilities between components is a need in such approaches. Indeed, software architectures validate the functional aspects, which are not sufficient...
In the context of the EU funded R&D project ATRACO we are developing a conceptual framework and a system architecture that will support the realization of adaptive and trusted ambient intelligent systems. Our approach is based on a number of well established engineering principles, such as the distribution of control and the separation of service interfaces from the service implementation, adopting...
Standard process models like RUP or the German V-Modell XT are developed to be used in an organizational environment. Yet introducing such a process model into an organization is no simple task. It is usually accompanied by either reorganizing internal processes to comply with a standard process model or by adaptation of the process model to organizational structures. The latter is an approach that...
The diversity of terminals used by the user to access resources (personal digital assistant, mobile phone, etc.) using several types of networks (wireless, local, etc.) generates a growing need to adapt services dynamically to the user's context. In this article, we present our architecture that aims at adapting content and presentation of services to the user's context. We realize the content adaptation...
Existing group communication middleware may violate security requirements of an application, because it does not harness knowledge of application parameters. These parameters such as arrival rate, departure rate, staying period, group life time and tolerance times for join and leave, are critical for meeting security requirements of the application and for optimizing performance. In this paper, we...
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