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This paper describes an application that aims to stimulate physical activity adapted to elderly people. The application is implemented as a game with two avatars: user and trainer. The user avatar must reproduce the movements of the trainer's avatar. The similarity between two movements is computed using Dynamic Time Warping. Also the speed of the trainer is adapted to the user's movements using cross-correlation...
The topics related to the structure, evolution and usability of social and professional networks, drawing on knowledge from disciplines as diverse as sociology, mathematics, economics and physics, are relatively new in the area of computer science. Nevertheless, social/professional network data analysis (SNA/PNA) have already imposed a standard and in conjunction with a recommendation system can rank...
This paper introduces an optimized version of the standard K-Means algorithm. The optimization refers to the running time and it comes from the observation that after a certain number of iterations, only a small part of the data elements change their cluster, so there is no need to re-distribute all data elements. Therefore the implementation proposed in this paper puts an edge between those data...
Developing algorithms for Ambient Intelligence (AmI) environments involves testing algorithms using both simulated environments and user data. This has been traditionally done with simulators. While there are several datasets for Ambient Intelligence, most of them have do not have an open format and a way to use them easily afterwards. We implement a software framework on top of an existing hardware...
It is well known that the main drawback of distributed applications that require high performance is related to the data transfer speed between system nodes. The high speed networks are never enough. The application has to come out with special techniques and algorithms for optimizing data availability. This aspect is increasingly needed for some categories of distributed applications such as computational...
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