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The research presented in this paper is focused on In-home positioning systems. These indoor environments are characterized by a reduced number of AP, narrow spaces and very important radio signal attenuation. Existing indoor techniques seems to be not totally suitable for these scenarios; this paper proposes an add-on for helping these techniques by the use of wearable ultrasound sensors (distance...
For outdoors, Global Network Navigation Systems have become the standard mechanism of positioning; but for indoor environments, there is still no standard system. Several mechanisms have been proposed and, among them, some of the more extended are those that use Wi-Fi signal for positioning, and mainly, those known as Wi-Fi fingerprinting. However, actual Wi-Fi mechanisms depends on environmental...
Background Advances in the development of information and communication technologies have facilitated social interrelationships, but also sexual contacts without appropriate preventive measures. In this paper, we will focus on situations in which people use applications to meet sexual partners nearby, which could increase their chance of exposure to sexually transmitted infections (STI). How can we...
Several applications that support users when doing tourism have appeared during the last years. These applications, though popular, have not become a reliable and dependable tourist assistant because they offer little personalization, which eventually may overwhelm users with too much information. An effective mobile application should store tourist information in a way that facilitates the identification...
With the advent of GPS and the spread of smart phones (iPhone, Android, etc.) have proliferated applications dealing with geographic information. Many of these applications are beginning to provide semantic information through: 1) the classification of tourist attractions in categories (thesauri tourism categories Open Street Map, etc.), and 2) the representation of metadata (Linked Geo Data, Crossing,...
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