Continuous logging of a person's geographical position is required for various " life-log " applications, such as memory aids, automatic blog generation, and life pattern analysis. GPS is one way of logging, but it is unable to track movements indoors, and hence cannot track people !G s ordinary activities. We propose a WiFi-based location detection technology for location logging. It detects a...

A system architecture for continuous mobility of Internetconnected computers is designed and proposed. The architecture considers network transparency, geographical location transparency, and performance transparency, with strong support for mapping between an identi er space of the Internet and geographical location information. The architecture is de ned by 1) identi er space support function...

In Dynamic Contrast-Enhanced MRI (DCE-MRI) of the liver, a series of images is acquired over a period of 20 minutes. Due to the patient’s breathing, the liver is subject to a substantial displacement between acquisitions. Furthermore, due to its location in the abdomen, the liver also undergoes marked deformation. The large deformations combined with variation in image contrast make accurate li...

A. AMERY, J. VERMYLEN, AND M. VERSTRAETE (Leuven University, Belgium) This study compares the effect on fibrinogen and plasminogen levels of the infusion of a high (1,200,000 units) and medium (250,000 units) standardized initial dose of streptokinase. In both groups the administration of the initial dose was followed by a continuous infusion of 100,000 units of streptokinase per hour. Immediat...

Mohamed F. Mokbel. Ph.D., Purdue University, August, 2005. Scalable Continuous Query Processing in Location-aware Database Servers. Major Professors: Walid G. Aref. The wide spread use of cellular phones, handheld devices, and GPS-like technology enables location-aware environments where virtually all objects are aware of their locations. Location-aware environments and location-aware services ...

In sensor networks, secure communication among sensor nodes requires secure links and consequently secure key establishment. Due to resource constraints, achieving such key establishment is non-trivial. Recently some random key predistribution techniques have been proposed to establish pairwise keys. Some of these approaches assume certain deployment knowledge is available prior to deployment a...

The likelihood of consumers to use commercial location-based services significantly depends on their perception of privacy protection by the service provider. In this paper we discuss existing privacy-enhancing architectures for LBS and argue that they are either not applicable or insufficient for services requiring continuous location queries. In order to offer such services providers often pr...

We consider a continuous location problem in which a firm wants to set up two or more new facilities in a competitive environment. Both the locations and the qualities of the new facilities are to be found so as to maximize the profit obtained by the firm. This hard-to-solve global optimization problem has been addressed in [38] using several heuristic approaches. Through a comprehensive comput...

Advances in wireless and mobile computing environments allow a mobile user to perform within a wide range of applications. For example, mobile users need to pull data about unfamiliar places or local life styles related to their location. Furthermore, a mobile user may be interested in getting location dependent query results periodically. We propose an algorithm for handling continuous queries...