نتایج جستجو برای: dynamic data replication
تعداد نتایج: 2808973 فیلتر نتایج به سال:
Mobile ad hoc networks (MANET) are becoming an integral part of the ubiquitous computing and communication environment, providing new infrastructure for multimedia applications such as video phone, multimedia-on-demand, and others. In order to access multimedia information in MANET, Quality of Service (QoS) needs to be considered, such as high success rate to access multimedia data, bounded end...
Data-Centric Storage (DCS) appears as a novel information storage and delivery mechanism for Wireless Sensor and Actor Networks in which a rendezvous node (home node) is selected to store and serve all the information of a particular application. However, DCS was not designed to provide long-term data availability. In this paper we present a Dynamic DCS solution to enable a long-term storage sy...
A Dynamic Data Driven Application Systems (DDDAS) methodology is developed for evaluation of fluid-thermal systems wherein a complete specification of the boundary conditions is not known a priori and experimental diagnostics are restricted to a limited region of the flowfield. The Closed Loop formulation of DDDAS is used whereby experiment and simulation are synergized in an iterative manner t...
Received: 11 March 2009 Revised: 1 May 2009 Accepted: 8 May 2009 Abstract For scientific data visualizations, real-time data streams present many interesting challenges when compared to static data. Real-time data are dynamic, transient, high-volume and temporal. Effective visualizations need to be able to accommodate dynamic data behavior as well as abstract and present the data in ways that m...
A Dynamic Data Driven Application System (DDDAS) was created to study interaction between fire and agent models during a fire evacuation. The analysis from that research can be used to validate proposed ideas in evacuation and building designs to ensure safety of buildings given various agent behaviors. Two separate models were used to simulate the components of the emergency situation: fire an...
We describe three different dynamic data-driven applications systems (DDDAS): an empty house, a contaminant identification and tracking, and a wildland fire. Each has something in common with all of the rest and can use some common tools. Each DDDAS is quite complicated in comparison to a traditional static input simulation that is run with large numbers of inputs instead of one longer run that...
In this paper we describe a dynamic external memory data structure that supports range reporting queries in three dimensions in O(logB N + k B ) I/O operations, where k is the number of points in the answer and B is the block size. This is the first dynamic data structure that answers three-dimensional range reporting queries in log O(1)
The replication of data objects in a large computer network is a diicult task which cannot be approached by simply employing the techniques used in small networks , because the high replication factors possible raise new issues which must be addressed. In this paper , we present a solution to the problem of managing replicas in a large scale environment. The solution is based on a multi{level q...
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