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Ubiquitous Information Systems (ISs) should support mobility of users and reason efficiently on their context to provide relevant and real-time information. ISs should be particularly adaptive and context-aware by managing and responding properly to occurring events. A need of integrating an adaptive and distributed event based system raises to lead to a diversity of proposed approaches and architectures...
Pervasive gaming as a research field has been attracting more and more attentions from researchers and practitioners. However, there is no much work on player's general attitude to pervasive games even this is an important aspect of understanding player enjoyment of pervasive games. We created a survey where we wanted to investigate people's attitude towards pervasive games. The survey included questions...
The experience of ubiquitous and seamless access to heterogeneous mobile communication networks is one of the core issues of today's research. One important issue is the reliable detection of spectrum holes. in this paper, we address three important spectrum holes detection algorithms in cognitive wireless networks: MTM-SVD based spectrum holes detection algorithm, Kalman filtering Predictor and Particle...
This paper presents the results of our innovative approach for the realization of a model driven development framework for modeling context-aware adaptive learning activities within Context-aware and adaptive learning environments. Its core element consists of a domain specific visual modeling language called CAAML (Context-aware Adaptive Activities Modeling Language). After, we present the developed...
Contextual information is becoming available with the increasing deployment of RFID tags, sensor network and mobile devices. The context information regarding user's environment can be utilized to adapt the behavior of services automatically to user's situation and need. This kind of adaptive services is called context-aware services. Despite of technological possibility, there is still lack of successful...
The objective of the work is to propose a context based formal language model of fault tolerant public transport system in pervasive environment. The system is modeled on the basis of context sensitiveness built inside the system to assist the decision making not only to identify the failed components but also to determine the alternate solutions to tolerate the faults when need arises. The fault...
New generation ubiquitous e-Learning system is the key for merging ubiquitous learning into the mainstream of education. FekLoma is such a u-Learning system, which is specially designed according to the requirements of ubiquitous e-Learning environments by bottom-up approach. The system is developed with ULO technologies, and is realized with programmable and extensible programming facility. Based...
As handheld computing initiatives continue to proliferate, the portability and immediate communication properties of mobile devices influence the learning processes in interacting with peers, accessing resources and transferring data. This paper proposes a ubiquitous e-learning environment that can be used to provide customized learning. It utilizes a set of interacting intelligent agents that can...
Opportunistic sensing allows to efficiently collect information about the physical world and the persons behaving in it. This may mainstream human context and activity recognition in wearable and pervasive computing by removing requirements for a specific deployed infrastructure. In this paper we introduce the newly started European research project OPPORTUNITY within which we develop mobile opportunistic...
Monitoring of the sub-sea environment requires advanced sensor networks with both stationary and mobile nodes on the surface and underwater, each node playing a different role. The combination of mobile and stationary nodes, the loss of nodes due to harsh conditions, the difficult conditions for wireless sub-sea communication and the need for nodes to collaborate are all factors that require new approaches...
Next-generation networks have the potential to service users without pre-existing contractual arrangements by using readily accessible pricing policies. The key issue is how to enable ad-hoc users to learn about the policies offered by a particular provider and to facilitate a negotiation between the provider and the potential user. Researchers working on the pricing of network services have offered...
We present in this paper the interest of ubiquitous computing for the so called contextualized forums. These forums allow communities of practice exchanging and sharing experiences or situations already lived by using learning documents to classify these exchanges. These forums contain a lot of information which contribute to improve classical training. We study here ubiquitous computing possibilities...
Over the past 20 years, a lot of effort has gone into making the vision of ubiquitous computing a reality. A major focus of this effort has been on the understanding of human activity as input to enable the design and implementation of context-aware applications. Context-awareness is a vital enabling technology for ubiquitous virtual reality applications. However, it is only recently that we have...
Computing technology is radically changing the manner in which we work and communicate with computers. ubiquitous virtual reality (U-VR) has been researched in order to apply the concept of virtual reality and its technology into ubiquitous computing. In this paper, we analyze past research on ubiquitous virtual reality and find future research direction.
The scope of grid computing has, in the last few years, been broadened to include mobile and pervasive devices. Pervasive grid promises access to grid environment from diverse devices and end-systems, leading to the paradigm of anywhere, anytime and anyhow access. Providing multi-target user interface access to the grid would therefore, become a challenge. In this paper, we present a custom-made approach...
In order to provide users with intelligent services, ubiquitous computing needs to make user situation analysis in consideration of users' mobility. Thus, this paper defines context structure for recognizing dynamic changes in users' environment and proposes a model of multi-agent for processing users' context. The proposed context structure distinguishes between dynamic and static contexts according...
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