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In wireless video monitoring system, collaboration and information sharing among monitoring nodes are of great significance to fully mining potential of the monitoring system. It is important to improve its efficiency and reduce the total power consumption, so as to extend its service life. In this paper, by introducing Mobile Agent into wireless video surveillance system, a Mobile Agent based multi-node...
Protecting host computer against potential malicious mobile code is one of important question of mobile code security. Model Carrying Code consider producer and consumer all together, gives theoretical framework center around behavioral model of program, which can guarantee safe execution of untrusted code. However, it faces several difficulties when applied to the most ubiquitous mobile code platform...
Identifying heavy hitters is essential for network monitoring, management, charging and etc. Existing methods in the literature have some limitations. How to reduce the memory consumption effectively without compromising identification accuracy is still challenging. In this paper, an adaptive method combining sampling and data streaming counting is proposed, called FSPLC(feedback sampling probabilistic...
Hyphantria cunea is one of the harmful international plant quarantine pests. In order to monitor and control the increasingly serious situation, based on the materials and data collected by “the 221 project” in Beijing in recent three years, this paper studies the spatial decision-making system of hyphantria prevention and control simulation, by combining WebGIS, JSP and Ajax technology. We design...
System anomaly detection is very important for development, maintenance and performance refinement in large scale distributed systems. It's a good way to obtain the troubleshooting and problem diagnosis by analyzing system logs produced by distributed systems. However, due to the increasing scale and complexity of distributed systems, the size of logs must be very large. Thus, it's inefficient for...
Speeding is recognized as a major contributing factor in traffic accidents on freeway. In order to reduce speed-related accidents, accurate real-time speed limit enforcement system is very critical to freeway. This paper presents an automatic speed limit enforcement system on freeway based on cameras and the Field Programmable Gate Array (FPGA) implementation to achieve this objective. Taking the...
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