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Software aging is a kind of objective phenomenon with the decrease of the performance and increase of failure rate of the software system. It is a severe test of the reliability of the software system. However, the time point of software aging is uncertain, and a new method based on non stationary time series modeling is proposed for the problem of the current software aging detection, analysis, and...
With the rapid development of computer technology, it has been widely used in many fields such as politics, economy, military affairs, culture, and education and so on. The society has entered into the information age with the development of computer and network technologies, however, the security problem of information has become the fundamental mater. As we all know, the basic principle of Von Neumann...
The naming and routing schemes in traditional TCP/IP were designed in the days when processors were slow and memory was expensive. These schemes are weak in terms of the following aspects: inability to properly support mobility and multi-homing, creating complexity in the network configuration, making network measurement difficult, and so on. To avoid such weaknesses, we propose a new naming and routing...
With the increased requirements of environmental protection, the problem of industrial boiler NOx emissions become more and more notable. The practical coal and the same air-distribution method as the one in the actual stoker boiler were applied to study the NOx formation characteristics in a unit-boiler with the purpose of studying the NOx formation characteristics in the chain-boiler. Measuring...
Image segmentation based on random walk model in graph theory can be transformed into large-scale sparse linear equations to solve problem. The final solution of the equation and the iteration convergence rate is depending on the selection of the initial value. It is a significant disadvantage for segmenting the large scale image while selecting initial value randomly. In this paper, we proposed a...
The test system in this essay is a test system under the mode of B/S (Browser/Server). In the test system, the subjective item grading technology is always a problem that limits the computer scoring technology development. The subjective items generally require to answer the questions in a way of language description, Since different person has different way of thinking, different level of understanding...
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