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This paper firstly compares rough sets theory with grey system theory, then the concept of grey sets is proposed and the grey degree of grey sets and the basic relationships and operations of grey sets are defined. Next, we set up the models of grey rough sets and wide grey rough sets as well as study their properties. Moreover, the definition of rough grey sets is given and their basic characters...
For the question that current gasoline-gas vapor recovery system cannot adjust the vapor-liquid ratio automatically due to the change of operation condition, this paper presents an optimal model design of the frequency conversion controlled system. In this research, first of all, a calculation of gasoline evaporation during the fuelling of gasoline tank was conducted by varying the temperature. The...
Benefits abound for a company that builds and maintains a CRM based data warehouse system correctly. This article will introduce the technical architecture of an e-commerce company's CRM/Data warehouses project which is able to increase revenue based on delivering the data reporting service to subscriber. These reports will cover a wide variety of individual sales metrics, marketplace comparables,...
Online shopping mall is emerging as a main marketing channel. The Web-based decision support system (DSS) in Web 2.0 is constructed to facilitate customers to share profiles and comments. Recommendation system is designed to cluster the customers and products respectively, and produce some association rules between customers and products. These have enabled the system to trigger consumer buying behavior...
The world-wide deployment of GIS in urban underground pipeline network (UPN) has led to a rapid growth in the amount of information. To improve the management and gather useful knowledge from the UPN's database more effectively, we integrate the UPN GIS system with data mining technology. In this paper, we study the spatial characteristics of UPN, analyze the basis of data warehouse-based data mining...
The flourishing development of software constantly enlarges its effect on people's daily life. Since the programs designed under Windows OS are usually issued in a form of binary executable file and the source codes are unreachable, the method of disassembling is now used to do reverse engineering for research. This paper starts with Windows portable executable and analyse disassembling result by...
The RoboCup 2D server simulates soccer team of real world in a multi-agent environment, which possesses characteristics of dynamic discrete system. This paper proposes a method to model and analyze the decision making process of single agent using improved Condition/event Petri net. The cooperation process of multi-agents is modeling later using simple Petri net based on environment built previously...
The large-scale sensor network is developing rapidly, thereby more and more efficient methods and algorithms for data management in sensor network are proposed. Traditional database technologies have been moved to this new area. The sensor network community also has developed various technologies for the specific network. This paper proposed a new research issue and method which provides a virtual...
This paper presents a method of modeling robot legs with linear inverted pendulum model based on zero-moment point (ZMP) theory. It quantitatively plans the foot's target pose matrix during the walking of a robot. Our method follows principles of inverse kinematics to get the anti-solution of joints based on Newton-Raphson algorithm and Jacobian matrix, therefore, it amends and optimizes the ZMP....
Fuzzy logic method was used to develop the fuzzy comprehensive evaluation model (FCEM), which could quantitatively assess social channel dealers. 197 social channel dealers of telecom company were taken as a study case. The framework of FCEM for the integrated system included fifteen subsystems, which were place of business, area of business, times of personnel training etc. The research would be...
In this paper, we develop the algorithm of He, Chen's structural decomposition for descriptor systems ([1], [2]). A new algorithm based on elementary operations is given to transform the fast subsystems so that we obtain the expected representation more easily. The result also simplifies the next step of the algorithm by our method.
Aiming at the disunion of the software quality standards and the difficulty to measure, a method for software quality evaluation based on fuzzy mathematics is put forward. According to the characteristic of the software quality model ISO9126, a general-purpose evaluation model for software quality is built by using the multilayer fuzzy comprehensive evaluation approach, to digitize the software quality...
The thesis presented a heterogeneous players strategy using in RoboCup. The strategy used fuzzy evaluation to obtain the evaluation results of all heterogeneous players on various roles, and constructed a fuzzy inference system to dynamically select equal heterogeneous players for various roles. The simulation experiments and competition results show the application is feasible and effective.
The chaotic disturbance phenomenon will occur in peculiar circumstances to the unmanned aerial vehicle (UAV) system. In this paper, the authors have discussed the condition of this phenomenon, analyzed its causes through the entire environment simulation and the concrete flight practice, and applied the on-line strategy to establish a mathematical model according to the system disturbance factor....
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