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The constraint condition affects the attack, but this impact is not considered by the existing decision algorithm. In order to make the decision algorithm more consistent with the actual situation, this paper gave an optimal attack decision method based on the correlation between vulnerability and constraint conditions. The method first establishes the attack logic graph according the attack template,...
Beichen district of Tianjin, located in the important node of Beijing-Tianjin golden corridor and high-tech industry area of Jingjintang region, has strong industrial foundations, while it is still faced with the problems that traditional industries account for high proportion of the industrial structure, inefficient use of industrial land, lack of enterprise innovation ability and shortage of resources,...
Correlation between the legitimate receiver and the eavesdropper has been seldom considered in the literature when evaluating secrecy metrics in stochastic wireless networks. In practice, however, poor scattering conditions may lead to spatially correlated channels, which can be exploited by eavesdroppers. In this paper we investigate the connection outage and secrecy outage in Poisson-distributed...
Under the considerations of trading costs and efficiency, more and more investors choose the way of online stock trading which is fast, convenient, and has preferential fee. The cost of establishing a new customer is five times more than maintaining an old one. As a result, to explore the investors choose continuous usage behavior of online security trading system as reference for security industry...
In this paper a round-the-year based network reinforcement solution generator for the transmission expansion planning problem is proposed. The solution generator makes use of a round-the-year network security analysis which combines zonal market simulations with load flow calculations. This allows a robust evaluation of the reinforcement candidates as all the hours in the year are considered. The...
This paper calculates the ecological footprint, ecological capacity and ecological pressure index of Shaanxi Province from 1991 to 2011 by the method of ecological footprint. And it gets the ecological security level trend in 21 years of Shaanxi Province. Then the paper selects five different indicators to establish index system. The state index of social development in Shaanxi Province is calculated...
In recent years, researches on stock price behavior after factor driven major price shocks have raised more attention. In this paper, investors' under-reaction (overreaction) to information is regarded as an interpretation of momentum (reversal). Using analyst reports as a proxy, we compare post-event stock returns evolution of stocks with information and without information after major price shocks...
Online dating is one domain, which would benefit from the application of computational trust. One of the problems with the application of traditional computational trust models, as identified in our previous work, is authenticity of information provided by parties which helps other users ascertain whether they want to go on dates. In this position paper, we suggest a solution: a concordance based...
Quite a few of existing literatures focused on research the inner impact of capital structure on Institutional Investors' Stockholding directly. In this paper, we have made an empirical research on this topic based on Chinese listed tourism companies' data during 2005–2009. The results indicated: (1) institutional investors were willing to hold listed tourism companies' shares with lower asset-liability...
Taking into account the current social security fund primarily invested to stocks and bonds, we construct the portfolio based on Shanghai & Shenzhen 300 index and bond index on behalf of pension fund investment portfolio, compute the risk of portfolio based on dynamic diagonal BEKK-MGARCH, carry out Kupiec test, compare the result with CCC-MGARCH model. The result shows that dynamic diagonal BEKK-MGARCH...
Using the data of listed firms from 2002 to 2009 year in the Chinese securities market, this paper do an empirical study on the correlation of audit market concentration and audit quality. The results showed that: China's audit market concentration is still at a low level, but is gradually improving; the ratio of Non-standard audit opinion, as a proxy for audit quality was not positively correlated...
This paper use the gray single-level evaluation evaluate coal enterprises' security condition with a gray theory, let the coal enterprise's evaluation be more scientific and more realistic and provide a reference for the safe appraisal of coal enterprise.
Market returns and risks are compared to other mature capital market on the Shanghai A-share Firstly, Rate return of 170 listed companies Empirical Study in Shanghai a-share market of China, We can conclude that there is not a linear relationship between Risk and return of securities according CAPM and systematic risk is not the only deciding factor in the return on assets.
In this research, we proposed that high frequency component of HFECG was applicable biometric feature for new identification system. We developed identification method by using neural network (NN), and aimed at the improvement of the classification rate. Preprocessing prior to NN is performed by justification on time axis and normalization on amplitude. As a result, an average of 99% classification...
The issue of the separation of ownership from control and the alignment of management and shareholder via the managerial ownership of equity remain the key topic of Chinese listed companies. Through the empirical study, this paper reveals that the managerial shareholding has no effect on management performance. The fundamental resolution to get the stock option incentive work in China is to set up...
In recent years, the field of situational assessment lacks a comprehensive and systematic study. This paper proposes the idea of hierarchical situation assessment to solve this problem. From the perspective of the network transport layer, this paper researches the impact of abnormal behaviors on the protocol field and speculates the abnormal behaviors by the changes of the protocol field to assess...
An algorithm of applying Bedford's law to detect credit fraud in e-commerce is proposed in the paper and the feasibility is studied. The weakness of the algorithm for detecting financial fraud via Benford correlation coefficients is analyzed and a new detection method for e-commerce fraud defined as credit algorithm based on Bedford's law is established, providing better performance of reliability...
According to the application practice of production and management in coal enterprises and the basic principles of establishing the evaluation index system of informationization, we designed the tentative evaluation index system of coal enterprise informationization first; and then we selected the indices and optimized the index system by using the principal component analysis method, establishing...
The earnings of the listed company decides its value, measuring the quality condition of earnings synthetically is conducive to reflect the real state of profitability more objectively. Difference exists in the measurement of earnings quality for different industries, take manufacturing industry for example, this article will use factor analysis to construct a index system to measure the quality of...
Concerns on worldwide energy security have increased due to many reasons including the price hike of oil followed by coal. Sri Lanka's apprehension for energy security was minimal in the past due to the major share of hydropower in the electricity generation. As Ceylon Electricity Board (CEB), electricity utility in Sri Lanka anticipates a coal-dominant electricity sector within a decade, Sri Lanka...
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