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Interdisciplinary research from the domains of pervasive computing or ubiquitous computing, computer-human-interaction and computer science has led to the development of many intelligent environments , either on lab scale or as live in laboratories. While several middleware have been developed in this field, no standard middleware for intelligent(More)
Computing and communication technology is widely used and integrated in devices, environments, and everyday objects. Even with major advances in technology the vision of ubiquitous computing - from a user perspective - is not yet achieved. In this paper we look at new forms of interaction that will help to interact with the ubiquitous computer. In(More)
We report on our extended research on GymSkill, a smartphone system for comprehensive physical exercising support, from sensor data logging, activity recognition to on-top skill assessment, using the phone's built-in sensors. In two iterations, we used principal component breakdown analysis (PCBA) and criteria-based scores for individualized and(More)
—We present GymSkill, a personal trainer for ubiquitous monitoring and assessment of physical activity using standard fitness equipment. The system records and analyzes exercises using the sensors of a personal smartphone attached to the gym equipment. Novel fine-grained activity recognition techniques based on pyramidal Principal Component Breakdown(More)
The aging society requires novel approaches to facilitate in-home services and support for ambient assisted living. The transformation of an everyday home into a supportive environment is a challenging task, as costs and necessary efforts are preventing us to change normal homes into high-tech care units. We present an alternative solution, in between fully(More)
In this paper we introduce the design and development of the Learning Cube as a novel tangible learning appliance. Using the common shape of a cube we implemented a general learning platform that supports test based quizzes where questions and answers can be text or image based. Exploiting the physical af-fordances of the cube and augmenting it with(More)
The effective development and deployment of complex and heterogeneous ubiquitous computing applications is hindered by the lack of a comprehensive middleware infrastructure: interfaces to sensors are company specific and sometimes even product specific. Typically, these interfaces also do not sustain the development of robust systems that make use of sensor(More)