90 research outputs found

    Towards A Broadcast Time-Lock Based Token Exchange Protocol

    Get PDF

    Turin's Foodscapes: Exploring Places of Food Consumption Through the Prism of Social Practice Theory

    Get PDF
    This contribution wishes to propose an addition to the existing toolbox of techniques employed to approach and render explicit the place semantics embedded in geosocial data. Inspired by the notion of relational place introduced by human geographers, we focused on people's experience of the city derived from the aggregation of the points of view of different social groups. We analysed socio-spatial behaviour under the frame of social practice theories, defining social practices as collective social actions performed by groups of people that display a similar behaviour. Applying spatial pattern analysis and clustering on data extracted from TripAdvisor platform, we classified social groups of users depending on our prior knowledge and their spatial behaviours

    Conservative re-use ensuring matches for service selection

    Get PDF
    Abstract—The greater and greater quantity of services that are available over the web causes a growing attention to techniques that facilitate their reuse. A web service specification can be quite complex, including various operations and message exchange patterns. In this work, we give a declarative representation of services, and in particular of WSDL operations, that enables the application of techniques for reasoning about actions and change. By means of these techniques it becomes possible to reason on the specification of choreography roles and on possible role players, as a basis for selecting services which match in a flexible way with the specifications. Flexible match is, indeed, fundamental in order to enable web service reuse but it does not guarantee the preservation of the goals, that can be proved over the role specification itself. We show how to enrich various kinds of match proposed in the literature so to produce substitutions that preserve goals. I

    We-planning: participatory process to develop a digital platform for a collaborative governance of city services

    Get PDF
    Public administration, civil society organizations and private sector are strictly interconnected in re-thinking the management of city services and urban transformations toward new form of integration between top-down programmes and bottom up initiatives. The current web applications are not meant to coordinate heterogeneous stakeholders, their agendas and plans impacting over the public sphere, because usually address one specific task related to the management of the city such as issues reporting, online voting, and community services. Designing a digital platform to support the implicit and explicit continuative collaboration among city players involves the challenge to define a shared framework for all of them, representing the real context of their actions: geolocalised evolving multiple social networks, formal and informal relations protocols, roles and competences, and competing objectives to be mediated. The approach followed to model this kind of framework has been based on a participatory methodology structured in three cycles involving contextual enquiries, processes analysis, co-design activities, software development and testing in operational environments within local projects and initiatives at neighborhoods and urban level. The first cycle led to the outline of the platform intended as contents structure, interfaces, and user basic interactions. In the second cycle, urban dynamics have been defined through use patterns and functionalities in several multi-actors’ collaborative scenarios. The third cycle, currently on-going, is oriented to introduce procedural changes in communication and co-management practices refactoring local processes. Starting from the existing functioning advanced prototype, FirstLife, the future research will continue to build a collaborative planning support system enabling distributed decision making processes, the coordination of independent planning activities regarding physical transformations and social regenerations, and monitoring of the implementation of shared actions
    • …