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Under the frame of behavioral finance, this article established a model of perceived risk based on the disposition effect. Simulations indicate the opposite correlation between perceived risk and the disposition effect index. This conclusion is same to the real market perceived risk.
As a new developing economy in the 21st century, there have always been concerns about the scientific evaluation of a recycling economy. Based on the principle of material flow analysis and resource value accounting models in enterprise(s), through defining and tracking the value information of resource inputs, consumption, output and disposal in the production process, this paper builds a new evaluation...
In view of the independence and disagreement of each index in the groundwater quality evaluating, projection pursuit evaluating model is applied to groundwater quality evaluation, and real coding based accelerating genetic algorithm is introduced to optimize the projection direction so that multi-dimension data can be turned into low dimension space. The value of projection function can be calculated...
Flood disaster management is an important part of flood risk assessment. A regional flood disaster risk assessment index system is established in this paper. Then principal component analysis (PCA) method and BP neural network are combined, and a regional flood disaster risk assessment of PCA-BP neural network model is established. PCA-BP neural network model analyze the loss of flood disaster about...
Structuring a corresponding performance assessment index system by dividing the responsibility main body,and selecting a performance assessment index according to the principal component analysis. Then basing on a comprehensive performance assessment which is obtained by fuzzy comprehensive evaluation method, to structure a performance assessment model of supervising public projects that is perfect...
From the auto-start behavior of rootkit, this paper presented a rootkit detection mechanism based on the hidden registry information, and designed a Windows rootkit detection method based on cross-view. This method by comparing from the kernel mode and user mode enumeration of the registry information found the registry hidden items by rootkit, and then detected the rootkit. Finally, a representative...
Environmental impact assessment has an important influence on project decision. Based on the fuzzy matter element theory and information entropy theory, entropy fuzzy matter-element model has been established, which is used to evaluate the good or bad of schemes. Taking scheme selection of highway as an example, the evaluation results show that the model can effectively eliminate the impact of man-made...
Taking the fuzzy and grey features of transformer substation construction project into account, this paper classified the evaluation system of transformer substation construction project into 4 indexes of grade A and 13 indexes of grade B. The weight of each index is decided reasonably by the Analytic Hierarchy Process (AHP).The grey number and the grey evaluating weight of each index are obtained...
This paper studies the Shanghai Stock Exchange (SSE) Composite Index, sample period of which spreads from December 16th 1996 to December 31st 2009. The index close prices, its logarithm, its logarithmic first differences, and its log linear detrended series are used. To judge the existence of chaotic dynamical features in time series, the technique of phase space reconstruction is applied. The C-C...
The rural ecological environment system is complexity, multi-attribute and multilayer tissue system, so its impact factors include natural, economic and social factor. The paper builds three lays rural ecological environment index system with analytic hierarchy process and presents standard value of the index evaluation, and calculates index weight with principal component analysis, and gives indexes...
This paper investigated the relationship between capital structure and corporate performance. Differing from former studies, the paper stood on a special position of small and medium-sized enterprises and evaluated corporate performance by factor analysis method. Based on 608 observations, conclusions show that capital structure can improve corporate performance for small and medium-sized enterprises...
This paper proposed the thermo-economics evaluation system of cogeneration according to its characteristics. Base on the proposed evaluation method, the relative weight of indexes at all levels are analyzed. Using the AHP and expert estimation method, the thermo-economics of a combined heat and power unit in Ningxia province was evaluated. The method proposed in this paper provides integrated indexes...
Data Envelopment Analysis (DEA) is a linear programming methodology to measure the efficiency of multiple decision-making units (DMUs) when the production process presents a structure of multiple inputs and outputs. It excludes the subjective factors and has been applied in many areas. This paper is mainly focused on the input-output efficiency appraisal of key industries of Hebei province based on...
Innovation ability is a measure of an important indicator for the national high-tech zone. In this paper, the evaluation index system of innovation was established,12 typical samples were selected in 56 national high-tech zones used data envelopment analysis. Based on the creative efficiency evaluation system, innovation ability is analyzed and evaluated by C2R model. Using results of the analysis...
In view of the characters of hydrologic and meteorological situation in the cold mountain areas, the paper dispersed the watershed into the minimum grids. Through analysis on the different effect of solar shortwave radiation flux on ground surfaces at the same elevation grid, the redistribution of surface cold and heat source due to topography variation and snowmelt runoff were studied. Then, topography...
Aiming at the shortages of the existing data-mining model for forecasting the industry security, a classification model based on rough sets and BP neural network (BPNN) is put forward in this paper. First, the theory of rough set is applied to pick up and reduce the index attributes. Then, the training samples are sent to the BPNN to train and learn. After that, the sorts of the coal industry security...
Based on the annual report data between 1995 and 2005 of all listed companies (LCs), the 25 initial financial indexes, widely used by experts and researchers aboard and at home, was deduced to 14 effective evaluation indicators using factor analysis and principal component analysis (PCA). The 14 evaluation indicators, covering five aspects for comprehensive evaluation of competitiveness of LC, retain...
Regional Logistics and regional economy have a significant correlation. From the perspective of the logistics industry agglomeration, using the logistics industry data of 31 provinces in China, selecting three main indicators impact on the regional logistics industry based on previous research, entropy method and cluster analysis, combining to have a empirical study on overall development and characteristics...
The multi-wing butterfly attractors generated from Lü system via a single or multiple pulse function control is proposed in this paper. With the introduction of the single or multiple pulse function to the third equation of Lü system, the additional index-2 equilibrium points are created, from which multi-wing attractors are evolved. The evolutions of the strange four-wing butterfly attractor and...
We present the calculation of noise expressions of low voltage amplifiers by applying symbolic nodal analysis and using nullors. The nullor equivalents of the MOSFETs include only the dominant parasitic elements in order to generate a simplified symbolic noise expression, which provides a good insight to improve the design of low voltage amplifiers. The generated symbolic noise expressions are compared...
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