Submitted by Silvana Teresinha Dornelles Studzinski (sstudzinski) on 2017-04-19T15:55:11Z No. of bitstreams: 1 Fábio de Oliveira Dias_.pdf: 3212992 bytes, checksum: 687279fc82a1e707a3ba09c241b5e09b (MD5) / Made available in DSpace on 2017-04-19T15:55:11Z (GMT). No. of bitstreams: 1 Fábio de Oliveira Dias_.pdf: 3212992 bytes, checksum: 687279fc82a1e707a3ba09c241b5e09b (MD5) Previous issue date: 2017-02-17 / Nenhuma / A computação móvel e ubíqua tem propiciado o advento de soluções que permitem o monitoramento em tempo real de sinais provenientes de sensores e o seu processamento por aplicações que podem executar ações de acordo com as condições encontradas. Esta característica possibilita o uso da tecnologia para o monitoramento de condições de saúde de pacientes, denominado de cuidados ubíquos. Em diversas situações, a fim de salvar vidas de pacientes, é necessária a análise de seus sinais vitais de forma a prevenir eventuais colapsos. Este trabalho se insere nestas condições, estando voltado para a antecipação de ações de times de resposta rápida baseado em análise preditiva, propondo o modelo Predictvs. Um Time de Resposta Rápida busca prevenir mortes de pacientes que tenham piora clínica fora de ambientes de Unidades de Tratamento Intensivo em hospitais. De forma diversa dos trabalhos relacionados, que se preocupam apenas com ambientes de tratamento intensivo, o modelo Predictvs busca antecipar ações dos times de resposta rápida, através da análise dos sinais vitais dos pacientes com o uso de escores de alerta precoce e regressão linear. A contribuição científica do modelo é dada em virtude da possibilidade de efetuar a predição em tempo real de possíveis situações de colapso dos pacientes através do monitoramento e análise dos sinais vitais. A avaliação do Predictvs foi efetuada com a utilização de cenários, com a implementação de um protótipo e através de diversas simulações. Análises efetuadas com cerca de 228000 medições provenientes de um dataset público apresentaram bons resultados, onde a precisão da predição para a medição seguinte se mostrou bastante alta, atingindo mais de 99% no caso da frequência cardíaca e 100% na saturação de oxigênio arterial, ultrapassando 95% nos demais sinais vitais. Além disso, o índice de falsos negativos foi consideravelmente baixo, atingindo menos de 1% na frequência cardíaca e na saturação de oxigênio arterial. O índice de falsos positivos também foi baixo, embora não tanto quanto o de falsos negativos. No entanto, predições para três ou mais medições futuras mostram queda na precisão (mesmo demonstrando valores de acerto relativamente expressivos, com diversos sinais fisiológicos acima de 98%) e aumento do número de falsos negativos e, principalmente, de falsos positivos. / The mobile and ubiquitous computing has allowed the emergence of solutions that enable real-time monitoring of signals coming from sensors and processing for applications that can perform actions according to the conditions found. This feature enables the use of this technology for monitoring health conditions of patients, called ubiquitous healthcare. In several situations, in order to save his lives, it is necessary to analyze the vital signs of patients to prevent any collapses. This work is part of these conditions and is aimed at anticipating the actions of rapid response teams based on predictive analysis, proposing the Predictvs model. A Rapid Response Team intends to prevent deaths in patients who have clinical deterioration outside of intensive care units in hospitals environments. Differently of related works, which are concerned only with intensive care environments, the Predictvs model seeks to anticipate the actions of teams of rapid response through the analysis of vital signs of patients with the use of early warning scores and linear regression. The scientific contribution of the presented model is that we could better predict possible collapse situations of patients, through the monitoring and analysis of vital signs. The Predictvs evaluation was performed with the use of scenarios, implementation of a prototype and several simulations. Analyzes performed with about 228,000 measurements from a public dataset showed good results, where the accuracy of the prediction for the next measurement was very high, reaching more than 99% in the case of heart rate and 100% in arterial oxygen saturation, surpassing 95% in other vital signs. In addition, the false negative index was considerably lower, reaching less than 1% in heart rate and arterial oxygen saturation. The rate of false positives was also low, although not so much as that of false negatives. However, predictions for three or more future measurements show a drop in accuracy (even showing relatively expressive set values with several physiological signals above 98%) and an increase in the number of false negatives and, mainly, false positives.

Submitted by Silvana Teresinha Dornelles Studzinski (sstudzinski) on 2017-04-19T16:23:48Z No. of bitstreams: 1 Vitor Secretti Bertoncello_.pdf: 8707879 bytes, checksum: 8c444504769b11f83390c5d057d72e7c (MD5) / Made available in DSpace on 2017-04-19T16:23:48Z (GMT). No. of bitstreams: 1 Vitor Secretti Bertoncello_.pdf: 8707879 bytes, checksum: 8c444504769b11f83390c5d057d72e7c (MD5) Previous issue date: 2017-02-21 / Nenhuma / O crescimento constante da expectativa de vida no Brasil trouxe à tona um desafio para a rede de atendimento de saúde. A maior longevidade da população resulta diretamente no aumento do registro de doenças crônicas, elevando a procura por atendimento médico. A superação desse desafio passa pela mudança no modelo de atendimento de saúde, cujo objetivo é inserir o paciente como membro ativo no cuidado ao próprio bem-estar. Esse novo modelo gerou demanda por novas soluções de tecnologia de informação e comunicação capazes de atender satisfatoriamente ao paciente, como soluções em computação móvel e ubíqua. Assim, o presente trabalho propõe o modelo chamado AllHealthcare, consistindo em uma solução de registro de saúde pessoal (PHR), em que o próprio paciente é capaz de construir um Perfil de Acompanhamento Dinâmico (PAD) para seus cuidados de saúde, de acordo com suas necessidades, e alterá-lo conforme novas demandas ou focos venham a ser considerados. Tal dinamismo na construção de um perfil personalizado é alcançado devido ao modelo proposto se basear em arquétipos do padrão OpenEHR, o que também atribui a característica de interoperabilidade semântica à presente proposta. Em revisão de pesquisas com foco em PHR, grande parte das soluções encontradas são concebidas e focadas para tratamento de determinada doença, ou seus modelos não atendem a um conjunto de requisitos operacionais importantes e atuais, como a mobilidade do cuidado de saúde e a interoperabilidade semântica das informações de saúde. Do modelo proposto, foi implementado um protótipo funcional, o qual passou por três etapas de avaliação. Nas três etapas de avaliação os resultados foram positivos e e os participantes apontaram um conjunto de possíveis melhorias, mesmo assim, aplicando-se o modelo de aceitação de tecnologia (TAM) a 22 usuários do protótipo, obteve uma aceitação média de 86,6%. / The constant growth of life expectancy in Brazil brought to the focus a challenge for the healthcare systems. The increased longevity of the population directly results in increased registration of chronic diseases, increasing the demand for healthcare. Overcoming this challenge is to change the health care model, whose goal is to insert the patient as an active member in the care of own welness. This new model has generated demand for new information and communication technologies solutions able to satisfactorily meet the patient, as solutions in mobile and ubiquitous computing. Thus, this paper proposes the model called AllHealthcare, consisting of a personal health record (PHR) solution that the patient is able to build a Dynamic Accompanying Profile (PAD) for their health care, according to their needs, and change it as new demands or focus may be considered. This dynamism in building a custom profile is achieved due to the proposed model is based on openEHR standard archetypes, which also provides the feature of semantic interoperability to this proposal. In a review research focusing on PHR, most of the solutions founded are designed and focused for treatment of a particular disease or their models do not fulfill a number of important and current operational requirements, such as healthcare mobility and semantic interoperability of health information. From the proposed model, a functional prototype was implemented, underwent through three stages of evaluation. In the three evaluation stages, the results were positive and the participants pointed out a set of possible improvements, even though applying the technology acceptance model (TAM) to 22 prototype users, obtained an average acceptance of 86.6%.

Dans les environnements collaboratifs répartis temps réel, les objets répliqués, partagés par les utilisateurs sont soumis à des contraintes de concurrence. Pour les satisfaire, différents algorithmes de contrôle, exploitant les propriétés sémantiques des opérations et utilisant les Transformées opérationnelles, ont été proposés de façon à ordonner les opérations concurrentes et par-là garantir la convergence des copies d'un objet tout en respectant l'intention des usagers. Leur inconvénient est d'imposer ou bien que les opérations utilisées par les utilisateurs satisfassent une condition, difficile à vérifier et qu'il n'est pas toujours possible d'assurer, ou bien de défaire puis de refaire des opérations dans certaines situations. Le premier objectif de la thèse est de présenter deux nouveaux algorithmes n'ayant pas ces défauts. Ils reposent sur la mise en œuvre d'un ordre global continu qui permet non seulement de s'affranchir de cette condition mais aussi de simplifier le processus d'intégration d'une opération. Dans l'un des algorithmes, SOCT4 dont nous donnons la preuve formelle, l'intégration est encore simplifiée en différant la diffusion des opérations alors que dans l'autre, SOCT5, le parallélisme dans la diffusion est privilégié. L'extension de ces algorithmes pour tenir compte de la présence de postes mobiles est abordée. Le deuxième objectif est d'adapter les algorithmes de type SOCT2 pour permettre à un utilisateur d'annuler une opération dans la mesure où les rares propositions non restrictives faites pour résoudre ce problème compromettent dans certains cas la convergence des copies. Pour cela, plutôt que de manipuler directement l'opération inverse, on considère l'annulation comme une opération spécifique dont la transposition en avant doit satisfaire deux conditions générales que l'étude met en évidence. Le bien fondé de cette démarche est validée par l'étude de cas critiques.

Systems populating the Ubiquitous Computing environment are characterized by an often extreme level of heterogeneity at different layers which prevents their seamless interoperability. In this environment, heterogeneous protocols would cooperate to reach some common goal even though they meet dynamically and do not have a priori knowledge of each other. Although numerous efforts have been done in the literature, the automated and run-time interoperability is still an open challenge for such environment. Therefore, this thesis focuses on overcoming the interoperability problem between heterogeneous protocols in the Ubiquitous Computing. In particular, we aim at providing a means to drop the interoperability barriers by automatically eliciting a way for the protocols to interact. The solution we propose is the automated synthesis of emerging mediating connectors (also called mediators or connectors). Specifically, we concentrate our efforts to: (i) devising AMAzING, a process to synthesize mediators, (ii) characterizing protocol mismatches and related mediator patterns, and (iii) designing MediatorS, a theory of mediating connectors. The theory, and the process, are put in practice by applying them to a real world application, and have been adopted by the European Research Project CONNECT.

<p>This thesis presents a set of concepts and a general design approach for designing Mixed Reality environments based on the idea that the physical (real) world and the virtual (digital) world are equally important and share many properties. Focus is on the design of a technology infrastructure intended to relieve people from some of the extra efforts currently needed when performing activities that make heavy use of both worlds. An important part of the proposed infrastructure is the idea of creating Physical-Virtual Artefacts, objects manifested in the physical and the virtual world at the same time.</p><p>The presented work challenges the common view of Human-Computer Interaction as a research discipline mainly dealing with the design of “user interfaces” by proposing an alternative or complementary view, a physical-virtual design perspective, abstracting away the user interface, leaving only physical and virtual objects. There are at least three motives for adopting such a design perspective: 1) people well acquainted with specific (physical and virtual) environments are typically more concerned with the manipulation of (physical and virtual) objects than the user interface through which they are accessed. 2) Such a design stance facilitates the conceptualisation of objects that bridge the gap between the physical and the virtual world. 3) Many physical and virtual objects are manifested in both worlds already today. The existing conceptual link between these physical and virtual objects has only to be complemented with causal relations in order to reduce the costs in crossing the border between the physical and the virtual world.</p><p>A range of concepts are defined and discussed at length in order to frame the design space, including<i> physical-virtual environment gap, physical-virtual activity, physical-virtual artefact, </i>and<i> physical-virtual environment</i>.</p><p>Two conceptual models of physical-virtual space are presented as a result of adopting the physical-virtual design perspective: for the analysis of object logistics in the context of physical-virtual activities, and for describing structural properties of physical-virtual space respectively. A prototype system offering some degree of physical-virtual infrastructure is also presented.</p>

nombre croissant de dispositifs informatiques par le biais de technologies réseaux sans fil basées ou non sur des infrastructures (WLAN, Bluetooth, GSM, GPRS, UMTS). Une des problématiques majeures de l'informatique diffuse est de faire communiquer de façon dynamique, spontanée et transparente ces différents dispositifs entre eux indépendamment de leurs hétérogénéités matérielle et logicielle. Les intergiciels ont été introduits dans cet objectif, cependant étant donné leur diversité, une nouvelle source d'hétérogénéité de plus haut niveau apparaît, notamment au niveau de leur protocole d'interaction. Actuellement, deux méthodes permettent de résoudre ces incompatibilités : la substitution et la traduction de protocoles. La première requiert la conception de nouveaux intergiciels capables de s'adapter en fonction de leur environnement d'exécution afin de résoudre dynamiquement l'hétérogénéité des intergiciels existants. L'avantage de cette méthode est de fournir une interopérabilité dynamique. En revanche, son inconvénient est d'être non transparente : elle crée une nouvelle source d'hétérogénéité entre ces nouveaux intergiciels, et nécessite de développer des applications qui leur sont spécifiques. La seconde méthode, quant à elle, est transparente : elle ne requiert ni la conception de nouveaux intergiciels, ni le développement de nouvelles applications. Cependant, elle reste statique et planifiée contrairement à la précédente méthode. Dans le contexte de l'informatique diffuse, ces deux méthodes sont complémentaires. Notre contribution consiste à combiner ces deux approches. A l'aide des langages de processus, nous proposons, dans un premier temps, une spécification formelle de notre solution qui permet de résoudre l'hétérogénéité des intergiciels quels que soient la spécificité de leurs caractéristiques, de leurs protocoles et de leurs technologies. Dans un second temps, nous présentons deux systèmes, basés sur cette spécification, conçus pour résoudre : (i) les incompatibilités des protocoles de découverte de services, (ii) les incompatibilités des protocoles de communication. Leur particularité est d'assurer une interopérabilité dynamique et transparente sans requérir de modifications des applications et des intergiciels existants. A partir de nos différentes expérimentations, il apparaît que le surcoût de cette solution pour résoudre les incompatibilités de protocoles est raisonnable.

<p><em>Tangible social network system is a home-based communication solution specifically designed for elders. Former researches indicate that insufficient communication among elders cause several challenges in their daily activities such as social isolation, loneliness, depression and decreased appetite. In addition, lack of social participation increases the risk of Alzheimer´s (Ligt Enid, 1990). The major cause of these challenges are that elders are increasingly removed from communication technology using emails, text messaging, interact with social network systems and mobile phones due to cognitive and physical difficulties. To overcome this problem, new suggested social network system incorporates photo frame and photo album based interaction which allows instantaneous participation to the social network. By designing the new social network system, I tried to create an easier venue for more active cross-generational communication between elders and younger family members.This paper discusses the early results of the marker based social networking system aiming to propose digital technologies to enhance the social life of older people, who live alone their home. A prototype combining a touch screen, photo frame and a camera are described. It allows the older people to manage their participation to the social network system and get in touch with their loved ones. This paper demonstrates a User Sensitive inclusive Design (USID) process from the generation of user needs to the evaluation prototype. A key theme of tangible social network system shows how usable and emotional design derived from a user inclusive design process can encourage elders to adopt new modern technology. A first evaluation has shown the usability as well as the good acceptance of this system.</em></p> / AGNES

Depuis de nombreuses années, plusieurs communautés telles que IMS (Intelligent Manufacturing Systems), HMS (Holonic Manufacturing System) ont suggéré l'utilisation de produits intelligents pour rendre les systèmes adaptables et adaptatifs et ont montré les bénéfices pouvant être réalisés, tant au niveau économique, qu'au niveau de la traçabilité des produits, qu'au niveau du partage des informations ou encore de l'optimisation des procédés de fabrication. Cependant, un grand nombre de questions restent ouvertes comme la collecte des informations liées au produit, leur stockage à travers la chaîne logistique, ou encore la dissémination et la gestion de ces informations tout au long de leur cycle de vie. La contribution de cette thèse est la définition d'un cadre de dissémination des informations relatives au produit durant l'ensemble de son cycle de vie. Ce cadre de dissémination est associé à un nouveau paradigme qui change radicalement la manière de voir le produit et la matière. Ce nouveau concept consiste à donner la faculté au produit d'être intrinsèquement et intégralement communicant. Le cadre de dissémination des informations offre la possibilité à l'utilisateur d'embarquer des informations sensibles au contexte d'utilisation du produit communicant. Outre la définition du processus de dissémination des informations, cette thèse offre un aperçu des champs de recherche, tant scientifiques que technologiques, à investiguer par l'avenir concernant le concept de matière communicante.

This thesis presents a set of concepts and a general design approach for designing Mixed Reality environments based on the idea that the physical (real) world and the virtual (digital) world are equally important and share many properties. Focus is on the design of a technology infrastructure intended to relieve people from some of the extra efforts currently needed when performing activities that make heavy use of both worlds. An important part of the proposed infrastructure is the idea of creating Physical-Virtual Artefacts, objects manifested in the physical and the virtual world at the same time. The presented work challenges the common view of Human-Computer Interaction as a research discipline mainly dealing with the design of “user interfaces” by proposing an alternative or complementary view, a physical-virtual design perspective, abstracting away the user interface, leaving only physical and virtual objects. There are at least three motives for adopting such a design perspective: 1) people well acquainted with specific (physical and virtual) environments are typically more concerned with the manipulation of (physical and virtual) objects than the user interface through which they are accessed. 2) Such a design stance facilitates the conceptualisation of objects that bridge the gap between the physical and the virtual world. 3) Many physical and virtual objects are manifested in both worlds already today. The existing conceptual link between these physical and virtual objects has only to be complemented with causal relations in order to reduce the costs in crossing the border between the physical and the virtual world. A range of concepts are defined and discussed at length in order to frame the design space, including physical-virtual environment gap, physical-virtual activity, physical-virtual artefact, and physical-virtual environment. Two conceptual models of physical-virtual space are presented as a result of adopting the physical-virtual design perspective: for the analysis of object logistics in the context of physical-virtual activities, and for describing structural properties of physical-virtual space respectively. A prototype system offering some degree of physical-virtual infrastructure is also presented.

La moyenne d'âge de la population des pays industriels augmente régulièrement. Les personnes âgées vivant seules sont de plus en plus nombreuses, soit parce qu'elles préfèrent vivre de manière autonome, soit par manque de place dans les institutions spécialisées. Il faut donc trouver des solutions leur permettant de continuer à rester chez elles de manière confortable et sûre. Les habitats intelligents peuvent constituer une de ces solutions. Un des plus grands défis dans l'Assistance à la Vie Autonome (AVA) est de concevoir des habitats intelligents pour la santé qui anticipent les besoins de leurs habitants tout en maintenant leur sécurité et leur confort. Il est donc essentiel de faciliter l'interaction avec l'habitat intelligent grâce à des systèmes qui réagissent naturellement aux commandes vocales, en utilisant des microphones et pas des interfaces tactiles. Ce mémoire définit le concept de maison intelligente et présente quelques projets intéressants. Il précise ensuite de quelle manière l'assistance à domicile peut tirer parti de ce concept en s'appuyant sur l'analyse sonore. L'acceptabilité d'une interface vocale dans le cadre de l'habitat intelligent a été étudiée grâce à une expérience qui a montré quels étaient les souhaits, les attentes et les craintes des utilisateurs âgés, de leurs familles, et des travailleurs sociaux. L'analyse audio dans la maison intelligente étant un domaine de recherche encore peu exploré, l'intérêt et la manière d'analyser les informations sonores dans un habitat intelligent sont ensuite abordés par une expérience qui a permis de mettre en évidence les défis et les verrous technologiques qui devront être levés pour pouvoir utiliser les informations sonores en complément des autres modalités, et, dans le cas de la parole, la reconnaissance en conditions d'enregistre- ment distant. Une solution pratique mettant en œuvre plusieurs microphones est ensuite présentée. Le but envisagé est la réalisation d'un système de commande vocale mettant l'utilisateur en mesure de piloter son environnement non seulement par les interrupteurs et télécommandes classiques, mais aussi par la voix. L'intérêt de l'information audio combinée à celle des capteurs domotiques est ensuite mis en évidence au travers d'une analyse multimodale permettant de localiser une personne dans un habitat intelligent ou de déterminer son activité. La localisation est nécessaire, par exemple pour avoir connaissance du contexte dans lequel un ordre domotique a été donné. L'activité peut être utilisée pour observer une évolution des habitudes de la personne pour aider à un diagnostic. Pour finir, le mémoire présente les perspectives de recherche et les projets à venir de l'auteur. Il est accompagné de la reproduction de 4 communications scientifiques publiées dans des congrès sélectifs à comité de lecture.