Collaborative Networks realization fundamentally relies on the need of collaboration among involved partners. From the supporting ICT infrastructures point of view, an increasing movement has been observed in direction of the development of applications based on the Service Oriented Architecture paradigm as a way to maximize reuse, to minimize integration efforts and to augment processes’ adapt...

The growing complexity of the information and communication technologies when coping with innovative business services based on collaborative contributions from multiple stakeholders requires novel and multidisciplinary approaches. Service orientation is a strategic approach to deal with such complexity, and various stakeholders’ information systems. Services or more precisely the autonomous co...

Current approaches to build social networking systems are based on a centralized architecture because it allows a simple browser-based user experience and makes easier and more efficient to implement many algorithms used in a social networking site (e.g., friend suggestion), However this kind of architecture has many drawbacks for its users, e.g., lack of privacy, lack of anonymity, risks of ce...

This research aims at using vehicular ad-hoc networks as infra-structure for an urban cyber-physical system in order to gather data about a city. In this scenario, all nodes are data sources and there is a gateway as ultimate destination for all packets. Because of the volatility of the network connections and uncertainty of actual node placement, we argue that a broadcast-based protocol is the...

The reemergence of metropolitan area networks (MANs) is being stimulated by the continued growth of the Internet. Here we introduce the likely role that optical burst switching (OBS) will play in the development of 10-Gbit Ethernet (10GbE) metropolitan networks. Although the synchronous optical network (SONET) is being proposed to provide wide-area connectivity for 10GbE MANs, its synchronous t...

How do separate neural networks interact to support complex cognitive processes such as remembrance of the personal past? Autobiographical memory (AM) retrieval recruits a consistent pattern of activation that potentially comprises multiple neural networks. However, it is unclear how such large-scale neural networks interact and are modulated by properties of the memory retrieval process. In th...

We describe a set of services that are either necessary or desirable for support of e-commerce transactions in wireless networks. We focus on e-commerce transactions that involve digitally represented information, such as audio or video files, computer software or text documents. For each proposed service we first explain its utility independently of the network connectivity and then we emphasi...

We explore the issues concerning the support of reliable concurrent multicast in ATM networks. We provide motivation for using tree-based schemes versus receiver-initiated schemes, and compare variations on the fundamental tree-based scheme, showing the properties needed for an efficient reliable concast protocol for ATM. A new tree structure, called a feedback tree, is introduced for use in pa...

The increasing shift of attention from e-government to e-governance, even at the local level, requires technological solutions designed to support deliberative processes. We believe that to answer the request for local governance it is necessary to put at stake the background accumulated by community networks for undertaking the development (the design, implementation and testing) of a socio-te...

Multi-Protocol Label Switching is a relatively new technology based on the association of labels with routes and the use of labels to forward packets. In other words MPLS integrates the label-swapping paradigm with network-layer routing. Differentiated Services define a model for implementing scalable differentiation of QoS in the Internet. Packets are classified and marked, policed and shaped ...