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Cyber security has been heavily studied in both industry and academia, but the traditional security technology is still facing unprecedented challenges in the background of massive and complicated network traffic. Game theory as a mathematical model of conflict and cooperation between intelligent rational decision-makers has great potential to improve cyber security. This paper describes a focused...
Mining topics in Twitter is increasingly attracting more attention. However, the shortness and informality of tweets leads to extreme sparse vector representation with a large vocabulary, which makes the conventional topic models (e.g., Latent Dirichlet Allocation) often fail to achieve high quality underlying topics. Luckily, tweets always show up with rich user-generated hash tags as keywords. In...
Research community has recently put more attention to the Extreme Learning Machines (ELMs) algorithm in Neural Network (NN) area. The ELMs are much faster than the traditional gradient-descent-based learning algorithms due to its analytical determination of output weights with the random choice of input weights and hidden layer bias. However, since the input weights and bias are randomly assigned...
In order to analyze the influence degree between after-sales service quality and usage quality of aviation equipment, a method based on wavelet neural network (WNN) is proposed that support the equipment supplier to determine the key workflow and factors. Supplier workflow index-equipment usage quality relation function was established, and the overall effectiveness was defined. MATLAB was used for...
The complex network is a focus among the research on the complex systems today. In this paper, we propose a deterministic network called Durer networks arising from the Durer pentagons. It is revealed that the tail of the degree distribution follows a power law, the cluster coefficient of the network is high and the diameter of the network increases by the logarithm of the nodes number. The above...
Estate industry plays many efforts on economics' development. For investigating impact factors about estate companies' operating performance and finding the breakthrough to improve operational capacity, this paper constructed the evaluation model based on principal component analysis and adopted 40 estate listed companies as example to verify the model. The results indicated that the model, proposed...
In this study, the authors used 250 samples in China to examine the main effects and the interaction effects of psychological contract violation and negative reciprocity beliefs on workplace deviance. The results showed that psychological contract violation and negative reciprocity beliefs were both positively related to organizational and interpersonal deviance. But, not all employees would strike...
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