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Telecom operators have recently started to deploy massive computing and storage resources at the very edge of their access networks, hence evolving their infrastructures into large, distributed, and capillary computing environments, capable of placing applications very close to users and terminals and well-suited to effectively fulfill the challenging requirements for delay-sensitive applications...
The concept of self-managing of autonomic networks is a paradigm shift from today’s management models, aiming at enabling networked nodes to self manage their behaviour within the constrains of the operator’s policies and objectives. The incorporation of the autonomicity concept to communications systems makes necessary the development of extensible context models. These enable the efficient representation...
The increasing size, complexity and the dynamic character of future networks make traditional monitoring systems inadequate to be continuously updated and sense the endless changes in the topology and communication conditions. The need for reduction in the network management complexity and the administrator's operational burden imposes the design and implementation of self-functionalities and the...
Much interest has arisen recently on the access to and management of remote instrumentation and laboratory equipment in general. The complexity of activities related to these topics can be summarized under the name of remote instrumentation services, where the term ldquoinstrumentationrdquo includes any kind of experimental equipment, and the term ldquoservicesrdquo underlines the general framework...
In this paper, we present a three-layer flexible architecture which intends to help developers and end users to take advantage of the full potential that modern sensor networks can offer. The proposed architecture deals with issues regarding data aggregation, data enrichment and finally, data management and querying using semantic Web techniques. Semantics are used in order to extract meaningful information...
This paper presents a lightweight approach for providing web-based location aware multimedia content retrieval through Java enabled handheld devices. The main distinguishing characteristic of the proposed approach is that it separates the positioning system from the content access mechanisms, while being generic to the selection of the localization technology, i.e. GPS, Bluetooth, etc. Furthermore,...
The European project ELISA (e-learning for improving access to information society for SMEs in the South East European Area) is an INTERREG CADSES project that involves 13 partners from 8 countries, coming from academia, government and the service sector, with the main objective of implementing combined training methods for improving the acceleration of e-business penetration in the target countries...
This paper proposes a middleware architecture for the automated, real-time, unsupervised annotation of low-level context features and their mapping to high-level semantics. The distinguishing characteristic of this architecture is that both low level components such as sensors, feature extraction algorithms and data sources, and high level components such as application-specific ontologies are pluggable...
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