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E. Duchene et al investigate games whose sets of allowed moves are subsets of Wythoff's one, and whose set of P-positions is exactly Wythoff's sequence. Their results show that such a game does not exist. In this paper, we find a pair of games, one is the restricted version of the other, such that they have the same set of P-positions. We also find another pair of games, one is the restricted version...
We consider the problem of minimizing a convex objective which is the sum of a smooth part and a non-smooth part. Inspired by various application, we focus on the case when the non-smooth part is a max function. In this paper, we consider to solve such problems using iterative smoothing-gradient methods. We conduct run-time complexity and convergence analysis of smoothing algorithms.
Taken 37 bio-pharmaceutical companies on SME board in China, this papers constructs a growth evaluation indicator system for these companies by operating income growth rate, net profits, sales net profit, returns on total asset, ROE, debt to equity, current ratio, working capital ratio, turnover of current asset, and turnover of total asset. By way of factor analysis, this empirical analysis on the...
3D seabed terrain is established by the improved fractal interpolation algorithm. By adopting moving surface idea and making use of the local self-similarity of seabed terrain, this method maps rectangular subfield which consists of the cells around the centre interpolated cell to the interpolated cell by using fractal interpolation. In the seabed terrain establishment process, elevation is used to...
In order to solve the problem of slow convergence of the basic firefly algorithm, a modified method was proposed. In the modified firefly algorithm, the parameters of the algorithm can be adjusted adaptively according to the lightness variance of the firefly population. And the random movement step can be determined in accordance with the distance of two fly flies. Meanwhile, the method of autonomous...
In this article, we consider the problem of construction of Probabilistic Boolean Networks (PBNs). Previous works have shown that Boolean Networks (BNs) and PBNs have many potential applications in modeling genetic regulatory networks and credit default data. A PBN can be considered as a Markov chain process and the construction of a PBN is an inverse problem. Given the transition probability matrix...
A singularly perturbed reaction-diffusion problem with mix boundary conditions is solved numerically by using an adaptive grid method. The mesh is constructed adaptively by a grid generation algorithm. A linear and a semi-linear examples are tested. It is shown from the numerical results that the presented method is very efficient.
In this paper, a international strategy model for electric enterprise was constructed, and was applied to estimated the possibility and sensitivity of a electric enterprise. At last, some conclusion and suggestion were drawn.
Currently universities have faced a popular realistic subject, that is, how to construct a reasonable salary incentive mechanism based on two tasks of teaching and scientific research for teachers. This paper builds a multi-task principal-agent model based on those tasks which are delegated to teachers by universities. Then, through in-depth analysis of the model, we explore the relationships among...
Empirical studies show that there is a clear pro-cyclicality in China's financial system, which consists of commercial banks, securities firms, insurance companies and investment funds. The pro-cyclicality promotes the vulnerability of financial system and amplifies the volatility of macroeconomic cycles in China. China should accelerate the construction of a complete macro-prudential supervision...
Customer credit scoring is an important concern for numerous domestic and global industries. It is difficult to achieve satisfactory performance by traditional models constructed on the assumption that the training and test data are subject to the same distribution, because the customers usually come from different districts and may be subject to different distributions in reality. This study combines...
In order to reduce the loss of owner due to the rent-seeking behavior of construction and supervisor in overseas engineering projects, the paper explored the game relationship of the three parties involved by using game theory. The paper founded tripartite game payoff matrix and analyzed Nash equilibrium of mixed strategy game. The results show that, with the increasing probability of the inspection...
Many empirical studies find in Chinese capital market, companies providing external guarantees have higher asset-liability ratio and worse operating performance( Liu and Zheng, 2005; Jian and Xu, 2012; etc. ). Their studies suggest that the underlying reasons are the expropriation of minority shareholder wealth by controlling block holders. But seldom theoretical works can explain this phenomenon...
The paper constructed the information extraction method to extract description characteristic of execution process from the description text to provide data support for the evaluation of enterprise strategy execution effectiveness. The constructed information extraction method included two stages, i.e., Feature information extraction and information integration. It overcame some weaknesses of the...
This paper discusses dynamic alliance (DA) as a form of global supply chain (GSC) and how to develop its quality risk control technology based on 5M1E analysis through fuzzy relation model. A solution method based on genetic algorithm (GA) is proposed to obtain the solution of the proposed model. Finally, a case study of a large-scale water conservancy and hydropower construction project is used with...
The aim of this paper is to consider the construction site layout planning (CSLP) problem under a fuzzy random environment. With consideration of the multi-objective optimization (MOO) model is developed for fulfilling the requirement of reducing cost and improving the site security simultaneously. For solving MOO model, a multi-objective genetic algorithm (MOGA) is designed as a solution method....
The rapid development of the world economy, various investment activities more frequently, how to measure whether the activities of an investment profits? So people began to explore how an investment portfolio in order to gain maximum benefit. Modern portfolio theory is about investment behavior under conditions of uncertainty theory of income, in 1959, Markowitz presents a normative model on portfolio...
In order to discover the most significant factors which affect the selecting of the young consumer on their mobile operators, a questionnaire is used in this paper to get some information about the mobile users. And based on the perspective of consumer behavior, consumer behavior model is used in this research. To test and verify this model, this paper use PCA (principal component analysis) in the...
The aim of this paper is to solve resource-constrained projects scheduling problems (RCPSP) with complex hierarchical organization structure. A bi-level MODM model with fuzzy random coefficients is developed for RCPSP under hybrid uncertainty environment. In this model, construction contractor is considered as the upper level decision maker (ULDM) and outsourcing partner is the lower level decision...
Statistical data quality refers to the accuracy of the statistics. Accurate and reliable statistics is the important basis for scientific decision and scientific management. Aiming at the phenomenon of some statistical dishonesty problem shown in this paper the causes of this phenomenon are briefly analyzed, and we put forward the measures to improve the quality of statistical data.
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