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This paper provides an approach to evaluating Quality of Context (QoC) parameters in a ubiquitous Ambient Assisted Living (AAL) environment. Lack of quality can lead assisted systems to respond inappropriately, resulting in errors related to assistance or support, or putting the user at risk. QoC assessments can improve these systems and set them to perform specific actions whenever lapses in quality...
This paper provides an approach to evaluating Quality of Context (QoC) parameters in a ubiquitous Ambient Assisted Living (ALL) environment. The study presents the proposed context management architecture, which is then verified with the Siafu simulator in an ALL scenario where the user's health is monitored with information about blood pressure, heart rate and body temperature. Considering some parameters,...
Existing authentication techniques assumes a one-to-one relationship between the user and the device. However using multiple devices simultaneously by a single user in ubiquitous environments is inherently natural. In this paper we present use cases in which it is essential to authenticate a user continuously to guarantee secured data collection service. Next, we examine techniques found in the literature...
As computing devices become more pervasive, our daily activities start generating a vast amount of information that could be exploited for helping us better understand ourselves. In this paper we present a system that uses easily available data correlated into a story-based representation aimed at providing users with a better understanding of their lifestyles. While this is still work in progress,...
Context has been applied to a broad range of domains and systems ranging from location-based tourist applications to motion capture. An area relatively under-represented in the literature is health-monitoring systems. This paper considers the application of context in health monitoring and the role of translational research, a concept that relates to the translation of basic research into clinical...
The burden on our healthcare systems is ever increasing with people living longer and requiring more support. Technologies can help ease the strain. One important aspect in health management is prevention enabled by self-monitoring and, eventually, self-understanding one's lifestyle through building supportive, interactive and engaging systems. This paper outlines a system aimed at empowering users...
In this paper, we describe an extensible toolkit for creating, testing and executing context-aware mobile applications. Our aim is to facilitate research in wearable & ubiquitous computing by providing an experimental framework into which novel sensors, networking mechanisms, web services and algorithms can easily be added and explored. The paper describes the toolkit, an SDK used to create plug-ins,...
Pervasive computing environments based on the ubiquitous communications paradigm have attracted significant research interest and have found increased applicability in commercial settings, attributed to the fact that they provide seamless, customized and unobtrusive services to their users. The majority of solutions proposed in the related literature to enable pervasive computing involves specific...
Ubiquitous and pervasive applications are aware of the context of the used resources. This class of application can benefit from mechanisms to discover resources (devices and sensors) that meet their requirements and mechanisms to monitor the state and provide access to the functionalities of these resources. We present an architecture that includes two essential services to compose the supporting...
We present a decision-level data fusion technique for monitoring and reporting critical health conditions of a hypertensive patient at home. Variables associated to the patient (physiological and behavioral) and to the living environment are considered in the solution, contributing to improve the confidence on the system outputs. In the paper, we model the problem variables as fuzzy, aiming to capture...
Ubiquitous (or smart) healthcare applications envision sensor rich computing and networking environments that can capture various types of contexts of patients (or inhabitants of the environment), such as their location, activities and vital signs. Such context information is useful in providing health related and wellness management services in an intelligent way so as to promote independent living...
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