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Material procurement is the very first link in the course of construction project, which relates to project cost, quality, and time limit and so on. Therefore, the selection of supplier is particularly important. In this paper, a two-stage model of supplier selection in project has been constructed by rough set and multi-objective liner programming based approach. The application of rough set based...
Combined with the actual situation of China's construction enterprises, based on the growth-medium-sized enterprises evaluation method published by “Research for Small Medium-sized Enterprises Development” joint research projects group, and by using fuzzy clustering analysis to analyze the eight evaluation index systematically which determine the enterprises growth, the sorting of evaluation index...
This paper innovatively proposes a hybrid intelligent system combining fuzzy comprehensive assessment approach and artificial neural network (ANN) that predicts the safety performance of construction site for breaking through the limitations of conventional method. And also inducts the sensibility analysis to discriminate the importance of each index in the assessment index system. The effectiveness...
This paper examines the predictive power of momentum indicators, a kind of technical trading rules measuring short-term momentum, on three popular US stock market indices, the Dow Jones Industrial Average, Standard & Poor's 500 Composite Index, and NASDAQ Composite Index. Generally, the main findings indicate that returns conditional these trading rules are significantly different from unconditional...
The paper introduces the existing multi-pattern matching algorithms implemented by software, and analyses the Wu-Manber Algorithm in emphases. According to the analysis, the paper points out that we will gain different performance when we adopt different hash function or domain. This conclusion is proved by experiments, which show that we shall adopt appropriate hash functions or domain to improve...
The current skill evaluation of GMDSS certification is mainly carried out by human being, which involves many man-made factors, and is hard to test the real level of personnel being assessed. Due to this fact, the present study designs an automatic evaluation system. Based on a B/S structure, the system realizes an automatic assessment content algorithm according to category and area. It simulates...
The paper analyzes the performance evaluation method in urban emergency logistics. There are always some unexpected events such as natural disasters or calamities which can obstruct the smooth operation of logistics system. In severe events, failed logistics can bring urban regions to chaos. According to the principle of early warning, emergency performance evaluation should be carried out. In this...
To find the risks in food supply chain and to take appropriate measures to guard against risks and increase capacity of food supply chain to resist risks. The paper established Logistic regression early-warning model to recognise magnitude of risks based on principal component analysis and Logistic regression analysis. An empirical analysis is carried out to test the model by take out some food enterprises...
For apparel enterprises, vendor selection is an important decision-making. A satisfied vendor may depend on an appropriate selection method. Vendor selection is a classic multi-objective decision-making problem and multi-objective assessment method is useful to solve it. In this paper, we proposed a new model which synthesizing AHP and DEA methods to evaluate the vendors for apparel enterprises. An...
Based on DEA model, this paper discusses the influence of state of economy in different industries on the senior managers' operating performance and excludes the influence of various uncontrollable factors on senior managers' operating performance by mathematical methods, which makes the new evaluation method more fair and reasonable. This new method is proved to be effective and practical by evaluation...
In this paper, a self-organizing ANN classifier is designed to estimate transient stability problem. This kind of classifier uses six indexes which are indexes of the integrated performance index method, so as to distinguish power system transient stability state into stable accident and unstable accident. It has better classified effect, and can reducing the number of accidents. It is also suitable...
The first ±800kV UHVDC transmission system is connected with the East China power grid around 2010 and its maximum transfer capacity will reach to 6.4GW. It brings new challenges and impacts on the network structure, operation security and reliability and system stability. In the paper, East China power gird configuration and load level for 2012 is adopted as base case for study. The power system...
Establishment of the optimal objective function is the first and a vital step for optimum design. The foundation pit engineering design is a procedure of multi-objective optimization and multi-objective decision. Some of these objectives can be quantitatively calculated, while others cannot. In order to make a comprehensive analysis of the effects of various factors on the optimum design of foundation...
In network economy, it is very important for Chinese agricultural web sites to raise their core competence that web sites construct. This paper adopts multiple correspondence to evaluate Chinese agricultural websites by utilizing real-time detecting tool. Through the analysis results, the paper put forword some suggestions for agricultural websites which may improve their service levels.
Based on the knowledge gap literature review, the elements of knowledge gap affecting enterprises are divided into the following five types according to enterprise operation laws and factors in market competition, i.e. Knowledge Gap of Management, Knowledge Gap of Sharing, Knowledge Gap of Innovation, Knowledge Gap of Resoures, Knowledge Gap of Propertyrights; then with principle of PCA to build positive...
The city green logistics is an important component in green logistics. Through systematic analysis of city green logistics, the evaluation index system model is determined. The index system has a systematic and scientific nature. To ensure that the evaluation process to avoid the results of subjective factors on the evaluation of the impact, using TOPSIS method and the entropy weight coefficient method,...
In this paper, a bipartite scientific collaboration network is constructed to identify the vital researchers in a scientific research group. There are two kinds of vertices in the network, where one kind of vertices represent the researchers and the other ones illustrate the papers. The edges are connected to the vertices which belong to two different classes. Through the bipartite network, a model...
Base on the new change of the market, this paper analyze the impact factors of the A shares and H shares of the price differences. Confirm the impact factors of the A shares and H shares of the price differences under the new circumstances. the finally obtained empirical results show that: information asymmetry factors, differences in liquidity factors, risk factors, differences in preferences and...
As the principle of enterprises' social responsibility for promoting the protection of labor rights, SA8000 has brought a lot of adverse effects to Chinese export enterprises. In fact the labor condition of Chinese enterprises is indeed worrying. In order to regulate and restrict enterprises' labor conditions in a long-term, and to evaluate and monitor periodically, it is necessary to provide quantitative...
By understanding the customer and good customer relations, Customer loyalty program will as a marketing project of fostering customer loyalty for the department stores enterprises to build competitive advantage and enhance the economic significance. However, whether we can really enhance the customer loyalty is the key to the problem. In this article, we have revealed the department store's unique...
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