The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
User/environmental context detection on mobile devices benefits end-users by providing information support to various kinds of applications. A pervasive question, however, is how the sensors on the mobile device should be sampled energy efficiently without sacrificing too much detection accuracy. In this paper, we formulate the user state sensing problem as the intermittent sampling of a semi-Markov...
The release of a gaseous substance into the atmosphere can pose a significant risk, whether intentional or accidental. The tracking and localization of the tracer as it moves throughout the domain in real time can provide information on how to minimize subsequent harm. This work investigates the state estimation and real time detection of a continuous source in a 3D environment through a Lyapunov...
In this paper we propose a tracking system for wireless sensor networks, which operates on accumulated ranging data from a number of anchor sensor nodes in order to infer the trace and other kinematic characteristics of a mobile target. The nonlinear nature of the ldquotracking with range-only measurementsrdquo problem yields significant challenges. In the proposed system, this problem is modeled...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.