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In this paper, we introduce moving average method to estimate the Hurst exponent of the Hang Seng Index data for the 22-year period, from December 31, 1986, to June 6, 2008 in the Hongkong stock market, a total of 5315 trading days. Further, we present a detailed comparison between the regular rescaled range method and the moving average method. We find that the long-range correlations are present...
Recent years, Intelligent Agent has become the powerful tools in developing electronic commerce system. Along with the development of intelligent Agent technique, we can design an intelligent e-commerce system. This paper briefly introduces the intelligent Agent technique and researches on the properties and principle of intelligent Agent, discusses the business negotiation process, proposes a negotiation...
In view of the shortage of e-commerce sites for data mining system, Web data mining system framework based on mobile agent is proposed in this paper. In advantage of the independency, mobility and intelligence of mobile agent, the search process and the recommendation of the entire commodity have a higher timeliness and accuracy. Businesses can apply the information to analyze and predict future behavior...
In this paper, studying from the structure of fuzzy numbers, we proposed quasi-linear fuzzy number, and proved that quasi-linear fuzzy number can approach to any forms fuzzy number under Lp -metric; further, we discuss the properties of quasi-linear fuzzy number.
In view of the shortage of e-commerce sites for data mining system, Web Data Mining System Framework Based on Mobile Agent (WMFBMA) is proposed in this paper. Through the introduction of Mobile Agent, the entire mining process of the mobility and intelligence. Businesses can apply the information to analyze and predict future behavior of customers which can help them provide targeted services to customers,...
Dimensionless method will make information distortion, and can not be controlled by information condition of water quality classification. Thus, theoretically, fuzzy recognition which takes ??distance?? as similarity measurement is not suitable for evaluating water quality, the best choice for which is to use membership degree as similarity measurement between sampling points and classes. However,...
The supervised learning algorithm with one normal sample in every class is used in many domains. However the algorithm isnpsilat normal and will influence the result. Because there is only one normal sample in every class, the learning stage is omitted. Very strong information conditions make this recognition algorithm different from other supervised learning algorithms. In this paper we point out:...
In this paper, we analyze the Hang Seng Index data for the 22-year period, from December 31, 1986, to June 6,2008 in the Hongkong stock market, a total of 5315 trading days. Using rescaled range method, we study how the threshold value q affects the correlations of the return intervals s r(tau ) between events above a certain threshold q. We find that: i) both return intervals obtained by different...
Many natural records exhibit multifractality characterized by the width and maximum of the singular spectrum. This paper study, how the return intervals of the Hang Seng Index affects the characteristic of the spectral function. We find that the multifractality of the financial time series is similar to the property of the return intervals obtained by small threshold q. Although the multifractality...
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