Iara Augustin

• Federal University of Santa Maria

Situation Awareness (SA) involves the correct interpretation of a situation, allowing a system to respond to the observed environment and providing support for decision making in many systems domains. Speech therapy is an example of domain where situation awareness can provide benefits, since practitioners should monitor the patient in order to per...

Ubiquitous computing technologies have been applied in several areas. However, it still presents a number of challenges, both for the full implementation of technologies and for the integration with existing information systems. One of the main mismatches evidenced by recent works is how context-awareness, a widely used capability in ubiquitous com...

Context-awareness is a key feature for ubiquitous computing scenarios applications. Currently, technologies and methodologies have been proposed for the integration of context-awareness concepts in intelligent information systems to adapt them to the execution of services, user interfaces and data retrieval. Recent research proposed conceptual mode...

One of the main research opportunities regarding the use of contextual information is the context and relational databases integration. This integration allows the better contextualized retrieval of data. This paper presents a set of rules, which used with an ontological model, allows the integration of context and domain data. This approach enable...

Ambient Assisted Living are equipped with ubiquitous technologies, and use sensors as their main element for environmental data collection, providing systems with updated information. Currently, there is a convergence combining systems for smart environments and uncertainty reasoning. Considering that the world population is aging, health-support i...

Considering that the world population is aging, health-support issues are in evidence, and many dangerous situations concerning users in their living environment may arise. This paper presents an approach to allow Ambient Assisted Living (AAL) systems to identify and predict situations that may endanger users in their living environment. Elderly pe...

The advance of information systems ascended research in the area of pervasive computing applied to healthcare, especially in the application of context-awareness in pervasive applications. In essence, context-awareness in healthcare integrates concepts and technologies to provide healthcare to a wider part of the population and in a personalized wa...

Even though human activities may result in injuries, there is not much discussion in the academy of how ubiquitous computing could assess such risks. So, this paper proposes a model for the Activity Manager layer of the Activity Project, which aims to predict and infer risks in activities. The model uses the Activity Theory for the composition and...

Smart environments are spaces that interact with users taking into account their needs and preferences. Systems that manage these environments need to manipulate the context for interacting in a suitable way with users. One big challenge for creating a smart environment is to deal with context dynamicity. Ideally, these computer-supported environme...

A atividade cotidiana humana pode ter um risco de dano associado para quem a está realizando. Este trabalho propõe uma abordagem para a predição de ações e detecção de situações de risco, baseando-se nas mudanças de contexto fisiol´gico provocadas por elas através do modelo Híperespaço Análogo ao contexto. Testes foram realizados para a predição de...

Ubiquitous computing defines a set of technologies to make computing omnipresent in real life environments. In the area of ambient assisted living, ubiquitous technologies have been used to improve the life quality and expectancy for people with impaired cognitive ability. Recently, researches have shown that the use of context-awareness combined w...

Even though human activities may involve physical injuries, there is not much discussion in the academy of how ubiquitous computing could assess the risk related to them. This paper proposes an approach to evaluate the risk of activities considering two factors: actions that compose activities and user performance in such activities. Risk managemen...

Currently, ontologies are widely used in ubiquitous systems for the representation of context and situation information. In addition, task ontologies are used to describe processes and daily situations that may occur in certain domains. In this way, it is necessary that there are strategies of integration between ontologies and databases, because u...

The process of data collection held by Community Health Agents (CHA) is critical to the functioning of the Community Agents Program (PACS), performed by the Federal Government. Through studies and interviews, it was possible to identify some problems occurring in the data collection and monitoring of families, such as the lack of integration in the...

With the augmentation of population's life expectancy as a whole, there is a need for intelligent applications to assist citizens in their daily activities. Ambient Assisted Living – AAL – are emerging as a way to allow technology and medical assistance to help people who need special supervision, providing support to medical emergencies. AAL are e...

Um dos maiores desafios para sistemas pervasivos de saúde é fornecer aos usuários informações personalizadas, de acordo com as necessidades de cada pessoa ou sistema. Para que isso aconteça, é necessário que exista uma descrição das informações de contexto do ambiente, de forma reconhecível por outros sistemas computacionais. Uma das formas de se a...

In the last years ontologies are being used in the development of pervasive computing applications. It is habitual their use for facilitating the interoperability among context-aware applications and the entities that may enter in the context at any time. This chapter presents OntoHealth: an ontology applied to health pervasive environment and a to...

Ontologies are used in computer systems to the definition of domains. Although there are rules concerning the representations and operations on ontologies, their use in computer systems are not yet complete, because there is not a tool, that from the structure defined in an ontology, is able to accept it in a database data in a distributed fashion,...

Actual healthcare systems suffer from a high rate of rejection by the physicians who use these systems, because it is necessary that the users explicitly provide information constantly to these systems. So, one of the biggest challenges for pervasive healthcare systems is to find how use the environment context information in a simple and functiona...

One of the biggest challenges for pervasive healthcare systems is to find a way to utilize the context information captured in the environment in a simple and functional form, making the relationship between different computer systems easy and providing computational resources in a transparent way. One of the most common forms of context representa...

Ontologies has as main objective to represent domains, providing semantic data and capacity to manage knowledge in computer systems. Althought there are standards for representing ontologies, such as OWL language, the full use of ontologies in computational systems is still restricted because the limitations found in persistence tools that are actu...

Mobile devices using traditional authentication processes are vulnerable and inadequate. New approaches must be considered for solving this problem: environmental characteristics, device limitations and information obtained from sensors. This paper presents a recommendation system approach for information systems based on user behavior and informat...

Mobile devices use traditional authentication processes, which are vulnerable and unsuitable for highly dynamic environments, such as ubiquitous and pervasive environments. Therefore, new approaches are necessary in such environments. These approaches must be (i) context-aware by considering environmental and operational characteristics, restrictio...

Mobile devices are becoming mandatory equipment in modern life. However, the connections are usually based on traditional authentication processes, which do not consider the environmental characteristics, restrictions of devices, and information provided by sensors within the pervasive space. In this paper, it is presented a novel adaptive authenti...

Este artigo apresenta a pesquisa realizada na modelagem de contexto clínico, buscando introduzi-la na arquitetura ClinicSpace. A partir da identificação de alguns elementos básicos de contexto, entre eles paciente, dispositivo e recursos ambientais, foi criada a descrição ontológica deste domínio para ser associação às tarefas clínicas modeladas pe...

One of the biggest challenges for pervasive healthcare systems is to find a way to utilize the context information captured in the environment in a simple and functional form, making the relationship between different computer systems easy and providing computational resources in a transparent way. One of the most common forms of context representa...

Um dos maiores desafios para sistemas de saúde ubíquos é encontrar uma forma de utilizar informações de contexto do ambiente de um modo simples e funcional entre diferentes sistemas computacionais. Uma das mais frequentes formas de representação de contexto, conhecida como ontologia, possui um importante papel em sistemas ubíquos se utilizada com f...

Ontologies has as main objective to represent domains, providing semantic data and capacity to manage knowledge in computer systems. Althought there are standards for representing ontologies, such as OWL language, the full use of ontologies in computational systems is still restricted because the limitations found in persistence tools that are actu...

In spite of the efficiency increasing in the access to patient information, electronic healthcare systems are rejected by the clinicians, because the dynamic characteristics of their activities are not adequately addressed by these systems. This paper presents the architecture of a pervasive healthcare system called pEHS, which uses concepts and te...

In the last years ontologies are being used in the development of pervasive computing applications. It is habitual their use for facilitating the interoperability among context-aware applications and the entities that may enter in the context at any time. This chapter presents OntoHealth: an ontology applied to health pervasive environment and a to...

Resumo: Apesar de aumentar a eficiência no acesso às informações do paciente, os sistemas eletrônicos de saúde sofrem rejeição dos clínicos, pois as características dinâmicas das suas atividades não são adequadamente tratadas por esses sistemas. Este artigo apresenta a arquitetura de um sistema de informação pervasivo em saúde chamado pEHS, que ass...

Um ambiente hospitalar pervasivo necessita que as entidades presente neste contexto(como pessoas e equipamentos) estejam em perfeita sincronia para a realização das tarefas médicas comuns no seu dia-a-dia. Uma das maneiras mais indicada para efetuar a representação deste domínio é através de ontologias. Desta forma, este trabalho tem como principal...

Currently, Pervasive Computing has focused on the development of programmable and interactive environments, which are intended to help the user in daily activities. The health system of the future envisages the use of Pervasive Computing as a way of optimizing and automating clinical activities. Under such perspective, the present study has tried t...

A core subclass of Ubiquitous Computing (Ubicomp) applications comprises those that are context-aware, which adapt their behavior to the prevailing resource availability levels aiming to optimize and enrich user-environment interactions and to reduce the demand for user intervention. The problem of adaptation control is related to the orchestration...

O Espaço Pervasivo de Arquivos (EPA) é um serviço do middleware EXEHDA que provê acesso a arquivos de forma a implementar o conceito de semântica 'siga-me' das aplicações pervasivas. Esse serviço introduz um novo modelo para adaptação ciente da aplicação que fornece métodos para que as aplicações provejam informações específicas para guiar a adapta...

The idea of ubiquitous learning is to create a network of devices, people and situation that allows learning experiences to play out. This idea is attractive but it is not easily implemented. The GlobalEdu is a ubiquitous learning architecture integrated in ISAM, a software architecture that manages a large-scale pervasive environment. This paper p...

The concept of pervasiveness provides the future of computing with an attractive perspective. However, software support for physical and logical mobility raises a set of new requirements and challenges for software production, creating demand for new types of applications, the so-called pervasive applications, which express follow-me semantics. The...

The idea of pervasive learning is to create a network of devices, people and situation that allow learning experiences to play out. This idea is attractive, but is not easily implemented. This paper presents a pervasive learning architecture called GlobalEdu which is composed by Educational Services (ES) and Pervasive Personal Pedagogical Agent (P3...

The computational setting of Pervasive Computing, where the computation is always-on, available anytime, anywhere and accessible with any device, require the development of specific solutions to this environment. In this environment, the communication is I-centric. This paper discusses the involved aspects and it describes the main current limitati...

This paper provides an overview of our on-going work in the GRADEp middleware. GRADEp research is being developed by the GRADEp Working Group, sponsored by RNP, and aims at extending the traditional grid computing proposal with the notion of "pervasive grid executions" by incorpo-rating aspects of mobility of devices, users and application componen...

The Mobile Computing is a vision of future that promises to modify the way people work and interact today. It has emerged as a new field, distinct from conventional distributed computing by its focus on mobility and its consequence. The physical and logical mobility allows the creation of applications with news requirements: built-in mobility, adap...

In this paper we present an overview of EXEHDA, an adaptive, services-oriented middleware, conceived to support the execution of pervasive applications and the management of a pervasive environment. EXEHDA is being developed in the context of the ISAM project, which aims to provide an integrated solution, from development to execution, for general-...

The ISAM architecture presents a platform to the development and to the execution of pervasive applications. DIMI (Disseminador Multicast de Informacoes - information multicast disseminator) is an information dissemination service designed for the ISAM architecture. DIMI seeks mainly to obtain scalability, avoiding bottlenecks formation while accep...

We consider that the concept derived of the integration of pervasive, context-aware and grid computing is suitable for building the next generation of the grid applications which assist to nomadic and mobile users. To demonstrate our ideas we have implemented a pilot application, called GeneAl, using the API provided by EXEHDA middleware. EXEHDA is...

In this paper, we present the concept of follow-me semantics of the large-scale pervasive application and discuss the features and services to its implementation based on the integration of three computing fields: mobile, context-aware and grid computing. We also discuss the adopted context-aware adaptation model, main feature embedded in both appl...

In this paper we present a practical experiment using an appli cation to solve the genetic sequence alignment problem implemente d in the grid envi- ronment provided by ISAM 1 . The ISAM architecture aims to provide an inte- grated solution, from development to execution, for genera l-purpose pervasive applications, combining techniques proceeding...

ISAM is a proposal directed to supporting physical and logical mobility, context-awareness, dynamic adaptation and the execution of large-scale distributed applications. In order to achieve its goals, ISAM uses, as strategy, an integrated environment that provides: (a) a programming language; (b) an execution environment; (c) a context recognition...

The heterogeneity and the highly dynamic behavior of the grid computing demands a new class of scheduling strategies. These strategies must not only consider the instantaneous information provided by sensors, but also probabilities of the information received to keep its values in a near future.

The multiparadigm approach integrates programming language paradigms. We have proposed the Holoparadigm (Holo) as a multiparadigm model oriented to the development of distributed systems. Holo uses a logic blackboard (called history) to implement a coordination mechanism. The programs are organized in levels using abstract entities called beings. F...

The next years will be characterized by high levels of heterogeneity and interactions among devices connected to global networks. The first researches involving wide-area distributed systems answered many questions concerning resource management, although they fail in treating questions related to heterogeneity and dynamic adaptation. More recent w...

The next years will be characterized for high levels of mobility, heterogeneity and interactions among devices connected to global networks. These interconnected networks will use as much wired connections as wireless. The first researches involving wide-area distributed systems answered many questions concerning resource management, although they...

Mobile computing has emerged as a new field, distinct from conventional distributed computing by its focus on mobility and its consequence. The physical and logical mobility needs of applications with new requirements: built-in mobility, adaptability and flexibility. Providing a system architecture that simplifies the task of implementing the mobil...

Uma nova classe de aplicações está emergindo, as aplicações móveis distribuídas. Estas aplicações são adaptativas por natureza, porque necessitam modificar o comportamento à medida que seu contexto de execução se altera (dados, recursos, serviços). Com este tema, está em desenvolvimento o projeto ISAM (Infra-Estrutura de Suporte às Aplicações Móvei...

This paper presents the PerDiS model for resource discovery, acting as a service provided by the ISAM architecture. ISAM aims to provide an inte-grated solution, from the development language to the execution environment, for general-purpose pervasive applications. PerDiS considers a set of new re-quirements and challenges imposed by pervasive comp...

Pervasive applications may use a multitude of different types of files. Many works have proposed to take this diversity into account through the use of application-aware adaptation. However most of these works are limited in what they can adapt to and in the adaptations they can do. The current work presents the application-aware adaptation model u...

Resumo A computa ao pervasiva apresenta uma visão onde o usuárió e capaz de utilizar o sistema computacional em qualquer momento è a partir de qualquer lugar e/ou equi-pamento. Um componente chave para viabiliza ao deste cenárió e a manuten ao do acesso aos arquivos relevan-tes para realiza ao das tarefas do usuário. O projeto de um serviço que per...

Pervasive computing presents a vision where the user is able to use the computational system any place, any time and from any device.A key component for the concretization of this scenario is the management of the access to the files relevant for the tasks the user wishes to accomplish. Pervasive applications may use a multitude of different types...

The ISAM project 1 primarily seeks for alternatives to build large-scale pervasive applications. It is composed by two subprojects: ISAMadapt, that provides tools and abstrac- tions to design and to implement applications; and EXE- HDA, that provides a middleware to manage the environ- ment's resources and applications. We consider that the designe...

It is notable, in the computing structure that surrounds us today, the elevated level of complexity of management and operation of the diverse tech- nologies that exists. This technologies are often applied in areas such as se- curity, where they become necessary for the possibility of automatization and costs reduction. The project CONVERGE UFSM h...

ISAMadapt is a development environment to mobile applications with adaptive behavior in a pervasive computing environment. To make available the follow-me semantics the pervasive applications are distributed, mobile and adaptive to the execution context. The main abstractions to build applications for this scenario are: context, alternative behavio...

RESUMO Os próximos anos serão caracterizados por elevados níveis de mobilidade, heterogeneidade e interação entre dispositivos conectados a redes de abrangência global. Estas redes interligadas utilizarão tanto conexões cabeadas como sem fio. As primeiras pesquisas envolvendo sistemas distribuídos em redes de larga escala responderam a diversas que...

RS is a reactive synchronous programming language intended to the programming kernels of reactive systems. Such kernels are responsible for the logic of a reactive system, manipulating the input signals, carrying through the reactions and generating the output signals. This paper presents the RS lan-guage theoretical models through an abstract lang...

This article presents the creation of a model of context in pervasive healthcare systems and offers a diagram of the clinical context. It demonstrates a way to solve the existing problem in context-aware systems to define what is relevant to the pervasive environment. It also offers a tool to support context modeling in a graphical form, allowing t...

This article presents a survey on modeling clinical context, seeking to introduce it in the architecture ClinicSpace. From the identification of some basic elements of context, including the patient, device and environmental re-sources, was created to describe this ontological domain to be associated with clinical tasks modeled by the physician. To...

Currently in its second generation, the Pervasive Computing is focused on development of interactive and programmable environments, which assist the user in their daily activities. The health care system of the future addresses the use of Pervasive Computing as a way to automate and optimize the clinical activities. This study tried to adapt a midd...

Resumo– Dispositivos móveis estão se tornando equipamentos obrigatórios na vida moderna devido ao crescente poder de processamento e oferta de recursos cada vez mais sofisticados. Entretanto, as conexões estabelecidas são, geralmente, baseadas em processos de autenticação tradicionais, que se mostram vulneráveis e inadequados. Novas abordagens deve...

Dissertação (Mestrado)--Ciência da Computação do Instituto de Informática da Universidade Federal do Rio Grande do Sul.