195 research outputs found

    The simplicity project: easing the burden of using complex and heterogeneous ICT devices and services

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    As of today, to exploit the variety of different "services", users need to configure each of their devices by using different procedures and need to explicitly select among heterogeneous access technologies and protocols. In addition to that, users are authenticated and charged by different means. The lack of implicit human computer interaction, context-awareness and standardisation places an enormous burden of complexity on the shoulders of the final users. The IST-Simplicity project aims at leveraging such problems by: i) automatically creating and customizing a user communication space; ii) adapting services to user terminal characteristics and to users preferences; iii) orchestrating network capabilities. The aim of this paper is to present the technical framework of the IST-Simplicity project. This paper is a thorough analysis and qualitative evaluation of the different technologies, standards and works presented in the literature related to the Simplicity system to be developed

    SOA4All, enabling the SOA revolution on a world wide scale

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    SOA4All will help to realize a world where billions of parties are exposing and consuming services via advanced Web technology. The outcome of the project will be a comprehensive framework and infrastructure that integrates four complimentary paradigm-shifting technical advances into a coherent and domain independent service delivery platform: Web principles and technology as the underlying infrastructure for the integration of services at a world wide scale; Web 2.0 as a means to structure human-machine cooperation in an efficient and cost effective manner; Semantic Web technology as a means to abstract from syntax to semantics as required for meaningful service discovery; and context management as a way to process in a machine understandable way user needs that facilitate the customization of existing services for the needs of users

    Ontology-driven monitoring of patient's vital signs enabling personalized medical detection and alert

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    A major challenge related to caring for patients with chronic conditions is the early detection of exacerbations of the disease. Medical personnel should be contacted immediately in order to intervene in time before an acute state is reached, ensuring patient safety. This paper proposes an approach to an ambient intelligence (AmI) framework supporting real-time remote monitoring of patients diagnosed with congestive heart failure (CHF). Its novelty is the integration of: (i) personalized monitoring of the patients health status and risk stage; (ii) intelligent alerting of the dedicated physician through the construction of medical workflows on-the-fly; and (iii) dynamic adaptation of the vital signs' monitoring environment on any available device or smart phone located in close proximity to the physician depending on new medical measurements, additional disease specifications or the failure of the infrastructure. The intelligence lies in the adoption of semantics providing for a personalized and automated emergency alerting that smoothly interacts with the physician, regardless of his location, ensuring timely intervention during an emergency. It is evaluated on a medical emergency scenario, where in the case of exceeded patient thresholds, medical personnel are localized and contacted, presenting ad hoc information on the patient's condition on the most suited device within the physician's reach

    Adaptive Content Delivery Over the Mobile Web

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    Ami-deu : un cadre sémantique pour des applications adaptables dans des environnements intelligents

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    Cette thĂšse vise Ă  Ă©tendre l’utilisation de l'Internet des objets (IdO) en facilitant le dĂ©veloppement d’applications par des personnes non experts en dĂ©veloppement logiciel. La thĂšse propose une nouvelle approche pour augmenter la sĂ©mantique des applications d’IdO et l’implication des experts du domaine dans le dĂ©veloppement d’applications sensibles au contexte. Notre approche permet de gĂ©rer le contexte changeant de l’environnement et de gĂ©nĂ©rer des applications qui s’exĂ©cutent dans plusieurs environnements intelligents pour fournir des actions requises dans divers contextes. Notre approche est mise en Ɠuvre dans un cadriciel (AmI-DEU) qui inclut les composants pour le dĂ©veloppement d’applications IdO. AmI-DEU intĂšgre les services d’environnement, favorise l’interaction de l’utilisateur et fournit les moyens de reprĂ©senter le domaine d’application, le profil de l’utilisateur et les intentions de l’utilisateur. Le cadriciel permet la dĂ©finition d’applications IoT avec une intention d’activitĂ© autodĂ©crite qui contient les connaissances requises pour rĂ©aliser l’activitĂ©. Ensuite, le cadriciel gĂ©nĂšre Intention as a Context (IaaC), qui comprend une intention d’activitĂ© autodĂ©crite avec des connaissances colligĂ©es Ă  Ă©valuer pour une meilleure adaptation dans des environnements intelligents. La sĂ©mantique de l’AmI-DEU est basĂ©e sur celle du ContextAA (Context-Aware Agents) – une plateforme pour fournir une connaissance du contexte dans plusieurs environnements. Le cadriciel effectue une compilation des connaissances par des rĂšgles et l'appariement sĂ©mantique pour produire des applications IdO autonomes capables de s’exĂ©cuter en ContextAA. AmI- DEU inclut Ă©galement un outil de dĂ©veloppement visuel pour le dĂ©veloppement et le dĂ©ploiement rapide d'applications sur ContextAA. L'interface graphique d’AmI-DEU adopte la mĂ©taphore du flux avec des aides visuelles pour simplifier le dĂ©veloppement d'applications en permettant des dĂ©finitions de rĂšgles Ă©tape par Ă©tape. Dans le cadre de l’expĂ©rimentation, AmI-DEU comprend un banc d’essai pour le dĂ©veloppement d’applications IdO. Les rĂ©sultats expĂ©rimentaux montrent une optimisation sĂ©mantique potentielle des ressources pour les applications IoT dynamiques dans les maisons intelligentes et les villes intelligentes. Notre approche favorise l'adoption de la technologie pour amĂ©liorer le bienĂȘtre et la qualitĂ© de vie des personnes. Cette thĂšse se termine par des orientations de recherche que le cadriciel AmI-DEU dĂ©voile pour rĂ©aliser des environnements intelligents omniprĂ©sents fournissant des adaptations appropriĂ©es pour soutenir les intentions des personnes.Abstract: This thesis aims at expanding the use of the Internet of Things (IoT) by facilitating the development of applications by people who are not experts in software development. The thesis proposes a new approach to augment IoT applications’ semantics and domain expert involvement in context-aware application development. Our approach enables us to manage the changing environment context and generate applications that run in multiple smart environments to provide required actions in diverse settings. Our approach is implemented in a framework (AmI-DEU) that includes the components for IoT application development. AmI- DEU integrates environment services, promotes end-user interaction, and provides the means to represent the application domain, end-user profile, and end-user intentions. The framework enables the definition of IoT applications with a self-described activity intention that contains the required knowledge to achieve the activity. Then, the framework generates Intention as a Context (IaaC), which includes a self-described activity intention with compiled knowledge to be assessed for augmented adaptations in smart environments. AmI-DEU framework semantics adopts ContextAA (Context-Aware Agents) – a platform to provide context-awareness in multiple environments. The framework performs a knowledge compilation by rules and semantic matching to produce autonomic IoT applications to run in ContextAA. AmI-DEU also includes a visual tool for quick application development and deployment to ContextAA. The AmI-DEU GUI adopts the flow metaphor with visual aids to simplify developing applications by allowing step-by-step rule definitions. As part of the experimentation, AmI-DEU includes a testbed for IoT application development. Experimental results show a potential semantic optimization for dynamic IoT applications in smart homes and smart cities. Our approach promotes technology adoption to improve people’s well-being and quality of life. This thesis concludes with research directions that the AmI-DEU framework uncovers to achieve pervasive smart environments providing suitable adaptations to support people’s intentions

    A Dynamic Rule-based Approach for Self-adaptive Map Personalisation Services

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    With continuous increase of available geographical information services, requirements for personalising map contentaccording to the user’s profile and context information areincreasingly important. Map personalisation applications could adapt their functionality/behaviour to provide the user with specific spatial data related to his interests at runtime. However, this can be achieved if map applications are able to filter and prioritise geospatial data using dynamic decision-making processes, whichconsiders users’ profiles and context for selecting and styling map content according to their needs. To this aim, this article proposes a new approach for map personalisation using dynamic rule-based engine, which provides the map application with the ability to change its styles and rules dynamically according to users’ profiles.This approach differs from the majority of existing works, which seek to embed the styling rules on the functional implementation of the map application. In addition, the personalisation engine is integrated with context-driven adaptation, which allows the application to monitor, detect, analyse, and react over changes onthe computational environment and users’ profiles. This enablesmap applications to use a styling rule that provides different levels of personalisation and adapt to changes in the computational environment including level of resources and quality of services
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