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.
Join queries over wireless sensor data streams need to be processed immediately to keep up with the input streams. Many existing algorithms do not solve the problem in context of both limited CPU and memory resources. In this paper, we propose two CML statistic model based approximate sliding window multi-joins algorithms for the system that both CPU and memory is limited, and a maximum subset of...
The Reverse Nearest Neighbor (RNN) query is to find the objects in objects dataset D that have Q closer to them than any other object in D. Formally RNN(Q) = {Oi?? D| NN(Oi) = Q}. Owing to technical advances of sensor and wireless techniques, sensor nodes are deployed over a wide range and applied to various applications with the RNN query. To date, centralized and in-network scheme based RNN query...
The Network Centric Warfare (NCW) model is currently attracting attention in modern warfare research. In this model, data processing issues, such as efficiently determining enemies of high threat, are critical for optimizing war tactics. In this paper, by adopting the concept of skyline queries which have been extensively studied in database research, we address the problem of searching highly threatening...
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.