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The majority of existing recommender systems use one or more statistical techniques to recommend content. While such techniques can be very effective, they have a number of restrictions, such as their inability to recommend items based on meaning or relationships between different characteristics of each item. This paper describes the design of a hybrid recommender system that uses a combination of...
Recently, the autonomic communication networks paradigm has been introduced as a solution to the increasing management complexity of communication networks in the Future Internet. In order to encompass the large-scale nature of these networks, a general consensus has been reached that the supporting autonomic management architectures should be distributed for scalability reasons. However, several...
In the Future Internet, free exchange of information between enterprise applications and networking systems promotes the personalization of services and enables many different types of end-user applications and management operations optimizing the network performance. As result of this free information exchange, we need to facilitate the federation of information between these applications, harmonizing...
Application level traffic classification is one of the major issues in network monitoring and traffic engineering. In our previous study, we proposed a new traffic classification method that utilizes a flow similarity function based on Cosine Similarity. This paper compares the classification accuracy of three similarity metrics, Jaccard Similarity, Cosine Similarity, and Gaussian Radius Based Function,...
Network management has suffered from increases in business, system, and operational complexity. This has been exacerbated by the heterogeneity in management data as well as the high quality requirements of multimedia services. Autonomic networking manages this growing complexity by adding intelligence inside network nodes and network management applications. While most autonomic applications simply...
Next generation networks, as well as the future Internet, aim to provide context-sensitive business services that adapt to changing user needs, business goals, and environmental conditions. This paper describes the composition of an autonomic element, as a fundamental part of an autonomic architecture, which uses information models and semantics to link the business services with the services provided...
The current Internet did not define any inherent management constructs and mechanisms; such concepts were added after networking standards and architectures were constructed. This also influenced network management for other types of networks. This paper is the first in a series that explores concepts for a new autonomic approach to network management that can be used for current and next generation...
Most service and network management applications are developed to use vendor- and device-specific management data. These data are produced from different languages, and hence can have different representations of the same concept. We define a novel knowledge representation and mapping mechanism that uses ontological concepts and relations to generate a formal description for the Directory Enabled...
We present a policy conflict analysis process that makes use of pre-defined semantic models of an application to perform effective and efficient conflict analysis. The process is effective as it can be used to analyse for policy conflicts that may occur in different applications due to the separation of application specific information and constraints from the algorithms to semantic models, such as...
The current Internet, while successful in many aspects, has a set of associated architectural and business problems that threaten its stability and inhibit new advances, such as seamlessly supporting ubiquitous computing applications. This paper proposes a set of autonomic mechanisms that can manage the future Internet. The context-aware governance features of this approach are particularly suitable...
Enabling the automated deployment and maintenance of current and future services over the Internet is a difficult task and requires self-aware functions that can adapt the services offered by the network to changing customer demand, business goals, and/or environmental conditions using policies. This paper describes a process to realise static and dynamic service deployment, given an understanding...
Integrated management of the Future Internet governs resources, networks, systems and services. This requires systems supporting services to orchestrate decision-making and management tasks. Management tasks must be performed considering end-user and network activity, and be able to enforce and verify operations for network and end-user requirements control. This paper proposes the semantic enrichment...
Regardless of which networking protocols or technologies form the core of the future Internet it is clear that the environment as a whole will need to support a very broad range of business and user interaction modes. In todays Internet we observe the growing trend for services to be both provided and consumed by loosely coupled value networks of consumers, providers and combined consumer/providers...
While the current Internet is successful in many aspects, management of the current Internet has a set of associated systemic and business problems. This paper discusses those problems and presents a summary of management research efforts on the future Internet. We present the design requirements for future Internet management such as architecture, protocol, knowledge representation, and market aspects.
Seamless mobility has been described as providing collaborative mechanisms that enable a user to accomplish his or her tasks without regard to technology, type of media, or device. This paper examines how the FOCALE autonomic architecture, in conjunction with a novel understanding of the environment based on the integration of information models and ontologies, can realize these challenges.
Next generation networks, as well as the Future Internet, need to provide context-sensitive services that adapt to changing user needs, business goals, and environmental conditions. This article presents a novel autonomic management methodology and associated architecture to make the networks and devices that it manages responsive to context-aware business needs. This approach provides a mapping between...
The current Internet, though successful, suffers from a set of underlying architectural and business problems that threaten its ability to meet the needs of the future. This article discusses those problems, and then presents a novel approach designed to meet business needs while advocating the concept of the prosumer. This approach provides a mapping between business needs and network services, and...
This paper describes an effort to develop an integrated set of ontologies for the particular sub-domains of network communication and a formal language, common to all the sub-domains, capable of expressing domain specific policies. Principal among these is the dynamic spectrum access (DSA) domain. This effort is led by the Software Defined Radio Forum MLM Work Group, with participation from DARPA...
Autonomic networking requires that the services and resources offered by the network at any specific time adapt to evolving changes in user needs, business goals and environmental conditions. This paper describes a rich and extensible context-aware policy model as part of the FOCALE autonomic network architecture. This context-aware policy model is built explicitly to support context-awareness that...
We present an analysis process targeting identification of potential policy conflicts within sets of policies relating to multiple network devices and the security services deployed on them. The process targets pre-deployment identification of potential conflicts between a newly created (or modified) policy and already deployed policies. It employs an algorithm which, with the aid of an ontology,...
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