723 research outputs found

    Multi-synchronous collaboration between desktop and mobile users: A case study of report writing for emergency management

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    The development of multi-synchronous decision support systems to facilitate collaboration between diverse users is an emerging field in emergency management. Traditionally, information management for emergency response has been a centralised effort. However, modern devices such as smartphones provide new methods for gaining real-time information about a disaster from users in the field. In this paper, we present a framework for multi-synchronous collaborative report writing in the scope of emergency management. This framework supports desktop-based users as information providers and consumers, alongside mobile users as information providers to facilitate multi-synchronous collaboration. We consider the benefits of our framework for writing collaborative Situation Reports and discuss future directions for research

    Scalable context-dependent analysis of emergency egress models

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    Pervasive environments offer an increasing number of services to a large number of people moving within these environments, including timely information about where to go and when, and contextual information about the surrounding environment. This information may be conveyed to people through public displays or direct to a person's mobile phone. People using these services interact with the system but they are also meeting other people and performing other activities as relevant opportunities arise. The design of such systems and the analysis of collective dynamic behaviour of people within them is a challenging problem. We present results on a novel usage of a scalable analysis technique in this context. We show the validity of an approach based on stochastic process-algebraic models by focussing on a representative example, i.e. emergency egress. The chosen case study has the advantage that detailed data is available from studies employing alternative analysis methods, making cross-methodology comparison possible. We also illustrate how realistic, context-dependent human behaviour, often observed in emergency egress, can naturally be embedded in the models, and how the effect of such behaviour on evacuation can be analysed in an efficient and scalable way. The proposed approach encompasses both the agent modelling viewpoint, as system behaviour emerges from specific (discrete) agent interaction, and the population viewpoint, when classes of homogeneous individuals are considered for a (continuous)approximation of overall system behaviour
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