Topic
Context awareness
About: Context awareness is a research topic. Over the lifetime, 5790 publications have been published within this topic receiving 119944 citations.
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TL;DR: This paper presents the context model, called the context dimension tree, which plays a fundamental role in tailoring the information space according to user information needs and proposes exploiting the information usage context within a methodology for context-aware data design.
Abstract: More and more often, we face the necessity of extracting appropriately reshaped knowledge from an integrated representation of the information space. Be such a global representation a central database, a global view of several ones or an ontological representation of an information domain, we face the need to define personalised views for the knowledge stakeholders: single users, companies or applications. We propose exploiting the information usage context within a methodology for context-aware data design, where the notion of context is formally defined together with its role within the process of view building by information tailoring. This paper presents our context model, called the context dimension tree, which plays a fundamental role in tailoring the information space according to user information needs.
60 citations
TL;DR: This paper first provides a formal notation of a task model that is further refined to support the variation of conditions depending on multiple contexts of use, and introduces key concepts that enable designers to build a Multi-Context Task Model.
Abstract: The context of use in which users are carrying out their interactive tasks is continuously submitted to an evolution in the user population, the computing platforms used for the tasks, and the physical environment in which users are living. This evolution process raises a need for extending traditional task modelling to support multiple contexts of use simultaneously. To address this problem, this paper first provides a formal notation of a task model that is further refined to support the variation of conditions depending on multiple contexts of use. Key concepts are then introduced to support the task modelling process so as to create a clear frontier between the Context-dependent Task Model and the Context-Independent Task Model. The Context-Partially-Independent Task Model attempts to capture subtasks shared in many contexts of use, but not all. The use of these key concepts enable designers to build a Multi-Context Task Model, notably, by factoring out common parts from Context-dependant Task Models. All these key concepts are equally denoted with the introduced formal notation. In addition, they support designers in adopting the task modelling approach of their choice in multiple contexts of use, which is so far not allowed.
60 citations
26 Aug 2002
TL;DR: This article presents the design and implementation of the platform that is named as SoapBox (Sensing, Operating and Activating Peripheral Box), its main features are wired and wireless communications, in-built sensors, small size and low power consumption.
Abstract: Designing, implementing and evaluating prototypes is a normal way of doing technical research. In recent years we have seen lots of research prototypes specifically designed for context awareness, future user interfaces and intelligent environment research. The problem with this type of specialised prototypes is that their lifetime is rather short and the valuable work done for them is not easily reusable. Our approach has been different as we have deliberately aimed towards a multipurpose platform that would be suitable for various ubiquitous computing related research themes. In this article we present the design and implementation of the platform that is named as SoapBox (Sensing, Operating and Activating Peripheral Box). Its main features are wired and wireless communications, in-built sensors, small size and low power consumption. We also introduce some results of research projects that have already used the platform successfully. Finally we conclude the paper with application scenarios for further work.
60 citations
TL;DR: The main idea of this work is to enrich with qualitative representation of context underling data by means of Fuzzy Logic in order to automatically recognize the context and to consequently find the right set of healthcare services among the available ones.
60 citations
TL;DR: A decision support systems, the Ubiquitous Context-aware Healthcare Service System (UCHS), which uses micro sensors integrate RFID to sense user's life vital signal, such as electrocardiogram, heart rate, respiratory rate, blood pressure, blood sugar, and temperature and light.
Abstract: The rises of the life index quality together with the medical technology improvement lead to a longer life expectancy. Thus a better health care program, especially for elderly, is needed. The common health problems facing those senior citizens are changed from acute diseases to chronic diseases, such as diabetes, hypertension, etc. Along with these changes, medical tourism is becoming the trend of the future. In this paper, we propose a decision support systems, the Ubiquitous Context-aware Healthcare Service System (UCHS), which uses micro sensors integrate RFID to sense user's life vital signal, such as electrocardiogram (ECG/EKG), heart rate (HR), respiratory rate (RR), blood pressure (BP), blood sugar (BS), and temperature and light. The UCHS is composted of Situation-Aware Medical Tourism Service Search Subsystem (SAMTS^3), Healthy-life Map Guiding Subsystem (HMGS), Intelligent Curative Food Decision Support Subsystem (ICFDSS), and 4D Emergency Indication and Ambulance Dispatch Subsystem (4DEIADS) to provide relevant nature medicine recommendations to its user. The UCHS built upon an integrated service platform in which medical experts' knowledge and all position and negative influence of the proposed therapy are inferred by using semantic network.
60 citations