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This paper use the concept of matter-element and correlation function to establish a prediction model based on the extension of the cluster, and apply the model to forecast the wastewater emissions. Applied results show that this method is scientific and reliable.
It is not easy to entirely avoid the uncertainty of supply problem. To solve the problem relays on setting up some necessary safety stocks. Safety stock is an effective management tool for protecting the enterprises against the uncertainty and it provides customers with the promised service level, but a higher safety stock level does increase the supply chain operating cost. Determination of safety...
There are three parts of Digital Educational Resource Platform - Educational Resource, Support system and Learning Environment. The design strategy of Digital Educational Resource Platforms in University is making cleanly what the users need, integrating standardize, efficient architectures, open Stand-point. The procedure of designing the Digital Educational Resource Platforms is analyzing and designing...
With the development of uncertain theory, fuzzy multi attribute decision making has been applicated in more and more areas. This paper established optimization model based on fuzzy ideal points for uncertain multi-attribute decision making problem in which the attribute values are given in the forms of triangular fuzzy number and the information on attribute weights is unknown completely or partly...
To supply chain network design problems with considering E-commerce of scale and further demand fluctuations, a reliability evaluation method is developed to evaluate the performance of plants under demand fluctuations. In addition, a mathematical programming model is developed to determine the optimal adjustment decisions regarding production reallocation among plants under different fluctuating...
To solve security problems of E-commerce system, this paper proposed a new trust model APR which is based on anticipative perceived risk. The concept of perceived risk was introduced into APR, many kinds of trust factor were taken to calculate the trust value among nodes, and an origination method was provided to integrate direct trust and recommendation trust. Comparing with other trust models, APR...
Statistical models in which both fixed and random effects enter nonlinearly are becoming increasingly popular. These models have a wide variety of applications in many areas such as agriculture, forestry, biology, ecology, biomedicine, sociology, economics, pharmacokinetics, and other areas. Mixed effect models are flexible models to analyze grouped data including longitudinal data, repeated measures...
This paper studies the realizing progress of data mining in psychological evaluation. Based on the matrix of evaluation data and the actual evaluation work, we propose a kind of generalized linear regression model with convex constraint, named as evaluation model, in which the dependent variable and regression coefficients all are unknown. We analyze the algorithm of the model with linear regression...
It??s very significative to get the numerical prediction of the biomechanical response of eyeball to increased IOP. In this study, a geometry model of eyeball with 3-layers wall and optic nerve was built firstly; then, meshing and physical property was applied on it to get physical model; finally, the increase of IOP was simulated on it. The results of simulation experiment validate this model and...
Spatial information service plays an important role in E-Government, but different models differ most in various applications of decision-making support activities. Therefore, how to evaluate the applicability of spatial application model is the key problem for the usage of spatial models in E-Government application. In this paper an evaluating model has been proposed to solve this problem. Based...
In this paper, we investigate the equilibrium and bifurcation of a predator-prey system by means of a computer aided analysis, and obtain the conditions of Hopf and Turing bifurcation in a spatial domain. It will be useful for studying the dynamic complexity of ecosystems.
There was a close relationship among network traffic, network user and network application in the complex network environment. We use Gini coefficient in economics to describe elephant and mice phenomenon the network traffic. A new model of network traffic which was comprised of network traffic, network user and network application was built on the basis of Gini coefficient. The result of experiment...
Peer-to-peer (P2P) eCommerce are commonly perceived as an environment offering both opportunities and threats. For peers to be effective they need some mechanism for managing this risk of failure. One way to minimize threats in such an open environment is to exploit reputation to help evaluate the trustworthiness of what and predict the future behaviors of peers. In this study, a set of parameters...
In this paper, by using the theories and methods of numerical analysis, a new algorithm for solving complex differential equations is established. Some examples are presented to illustrate the accuracy of the algorithm. It will be useful for solving the complex ecosystem.
A time-step-holding method for hybrid simulation of integrated power system (IPS) is introduced. It takes advantage of EMTDC??s functionality of designing custom component and its compatibility with Simulink to build simulation models for different networks. In this way, different time steps are used respectively in EMTDC and Simulink. It does not partition the whole system into electromagnetic network...
With the increase in the number of motor vehicles, according to the traffic capacity problem in our country now days, 3DS MAX is used in the field of traffic simulation. This paper takes single intersection as a subject of research. Firstly, the car model, single intersection, lane and so on are created with 3DS MAX. Then, the simulation of cars that are passing the single intersection is realized...
The development of software products is a complex activity with a large number of factors involved in defining success. Measurement is a necessary prerequisite, for software process improvement. However few guidelines exist for systematic planning of measurement programs within software projects and for multi-project selection. This paper discusses the major problems in software process measurement,...
This paper proposes a practical test model and test approach for Web applications based on use cases and their corresponding sequence diagrams. Large Web applications are modeled as hierarchical profile use-case diagrams called UCTM (use case transition model). From the hierarchical UCTM, the sequential dependency relationship of use cases can be gained. Traversing the UCTM from top to down, each...
The paper proposes an organization model hosted in the LDAP directory server. And it expands the scope of model utilization, gives the technical method which is capable of dealing with the heterogeneity, distribution of the organization model, and the transparency of the model to its users. Then the role-based access control (RBAC) technology has been used in the model to implement the control of...
Common information model (CIM) is an object model for describing and sharing enterprise wide management information. It covers the gamut-network, systems and application management definitions-in a far more comprehensive way. This paper probes into the concept, attribute and classify of the common information model, and also discusses the function, content, the characters and problems of common information...
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