Lionel Sacks

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We present a component-oriented approach to demonstrate the use of the Unified Modeling Language (UML) and Open Distributed Processing (ODP) concepts to design service components of a telecommunications management system. This paper is based on the work done in the design phase of the ACTS project “TRUMPET” (InterDomain Management with Integrity). This(More)
This study is partly motivated by the conditions in developing nations, especially those in Africa where food consumption exceeded domestic production by 30% in the mid 90s and where 70% of the population live on farming. This production deficit which appears to be growing co-exists with a large segment of the population working in agriculture. What can(More)
Recently Active Networks were proposed as the approach that will enable quick introduction of new services in the current telecommunication infrastructure. This approach allows third party executable codes (proxylet) to be deployed into the network, which creates a big security risk. In this paper we present the application of Bayesian technology in the(More)
Clustering techniques are generally applied for finding unobvious relations and structures in data sets. In this paper, we propose a novel scalable hierarchical fuzzy clustering algorithm to discover relationships between information resources based on their textual content, as well as to represent knowledge through the association of topics covered by(More)
With the sharp increase in heterogeneity and distribution of elements in wide-area networks, more flexible, efficient and autonomous approaches for management and information distribution are needed. This paper proposes a novel approach, based on gossip protocols and firefly synchronisation theory, for the management policy distribution and synchronisation(More)
In this paper, we contend that there are significant advantages in treating some classes of sensor networks as biological-like systems—both in structural design characteristics and in operational processes. We show how this design process leads to a sensor network system that is robust to topological changes, is scaleable and self-organising—and has a(More)
This paper presents the architecture, the policy schema, and the policy specifications necessary to accomplish effective management of the Application Level Active Networking (ALAN) environment. Using ALAN, developers can engineer applications through the network by utilising platforms (active servers) on which 3 party software (proxylets) can be(More)
We present an implementation of a policy-based management architecture for emerging communications and computing paradigms such as Active Networks and the Grid. To manage such open, highly distributed and decentralized environments, an approach based on policy concepts is adopted, allowing support for active, dynamic adaptability in network elements,(More)
Mobile computing devices, such as personal digital assistants and mobile phones, are becoming increasingly popular, smaller, more capable and even fashionable personal items. Combined with the recent advent of wireless networking techniques, users are equipped with mobile devices of significant computational abilities, which are able to wirelessly access(More)