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Smartphones with their GPS capabilities allow tracking in numerous scenarios at low costs. Whereas most scenarios need only coarse tracking, real-time tracking of competitors in sport events require fine-granular localization with high refresh frequencies. This work is conducted in the context of the sailing sports and tests the applicability of scenarios(More)
SmartWeld is a concurrent engineering system that integrates product design and processing decisions within an electronic desktop engineering environment. It is being developed to provide designers, process engineers, researchers and manufacturing technologists with transparent access to the right process information, process models, process experience and(More)
Mobile devices, namely smart phones and tablets, have recently experienced remarkable proliferation. Beside private users, companies realize the potential of increasing the mobile productivity of their workforce. In this paper, we take a business-to-business perspective on mobile app stores by evaluating the potential of particular app stores for(More)
Over the past years, the deployment of sensor net-works in industrial environments has attracted much attention in several business domains. An increasing number of applications have been developed, ranging from defense, public security, energy management, traffic control to health care. Sensor networks are particularly interesting due to their ability to(More)
Advertisements (ads) are prevalent in almost anyone’s life. In exchange for consuming ads, the user gets free access to online and mobile platforms, thus constituting a fragile symbiosis between platform, user and marketer. We shed light on a critical factor that affects this fragility: advertisements in disguise, also called covert advertisements. By(More)
While mobile apps for smartphones are consistently popular, the most common way for users to explore the Internet is still through the WWW. Websites are however not explicitly equipped with information regarding their location -- an issue for use on mobile devices. With this work we aim at bridging this gap by adding a location layer to websites and letting(More)
Over the past years, the deployment of sensor networks in industrial environments has attracted much attention in several business domains. An increasing number of applications have been developed, ranging from defense, public security, energy management, traffic control to health care. Sensor networks are particularly interesting due to their ability to(More)
Location-based services (LBS) belong to one of the most popular types of services today. However, a recurring issue is that most of the content in LBS has to be created from scratch and needs to be explicitly tagged to locations, which makes existing Web content not directly usable for LBS. In this paper, we aim at making Web sites location-aware and feed(More)
An Elliptic Curve can be roughly described as the set of solutions of an equation of the form y2 = x3 + ax+ b over some field (e.g. C,R,Q or some finite field Fpn). The importance of elliptic curves stems from their rich structure: there is a rather simple addition law definable on elliptic curves which makes them into an abelian group. Studying the(More)