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generalized Hurst index 广义Hurst指数
A calculating Hurst index method and its use have been recommended. 介绍了R/S计算hurst指数的方法和用途。
We propose a Hurst index estimation method based on DFGN model and Haar wavelet. 针对这些问题,对WO法进行改进,提出一种基于DFGN模型和Haar小波的Hurst参数估计方法;
Then an adaptive, efficient unbiased estimator of Hurst index based on multiresolution wavelet analysis and weighted regression is presented. 针对基于小波的Hurst指数估计方法的自适应问题;结合方差分析给出了一种有效的解决方法;从而提出了自适应的参数估计方法;并且该方法在一般意义上是无偏的.
The method of the R/S analysis is adopted to calculate the Hurst index of the gas wellswhose production is declining in Luodai Gasfield. 以洛带气田的产量递减井为例,运用R/S分析方法计算了气井的赫斯特指数,证实该区的气井产量变化和生产时间具有相关性,可以进行产量递减分析。
The calculation process of Hurst index needs to group the data of time sequence. And different grouping situations have different influences on the Hurst index. 赫斯特指数的计算过程需要对研究的时间序列数据进行分组,而不同的分组情况对赫斯特指数会产生不同的影响。
The fourth portion is the empirical analysis, first expounds the origin andmeaning of the Hurst index, and shows the concrete content of the R/S analysis in the fractal theory. 第四部分是实证研究部分,首先阐述了Hurst指数的由来及其意义,以及分形理论中R/S分析方法的具体内容。
We firstly empirical study non-linear characters of both shanghai stock market and shenzhen stock market by using month, week and day's return data applying Hurst index and R/S analysis method. 首先使用月、周和日收益率数据序列,应用hurst指数和R/S分析法分别对沪深股市进行了非线性特征实证研究,从低频数据到高频数据逐层分析,分别得到它们的H-指数、相关系数、分形维数和非周期循环。
The AE signal will be stronger when H >0.5, and it is weaker when H <0.5. On the basis of this character of Hurst index, the Kaiser point can be determined correctly by calculating the Hurst index of AE signal curve. H <0 .;5时;声发射信号趋于减弱。根据这一规律;通过计算声发射信号曲线的赫斯特指数 (或分形维数 );便可确定声发射试验中的凯塞点。
Fractional Brownian motion(FBM) is used in the parameterized modeling of base distributing of DNA sequence. Using mexihat wavelet do wavelet transform and Hurst index is calculated which can describes the self-similarity of DNA sequence. 采用分数布朗运动(FBM)来对DNA序列的碱基分布进行参数化建模，用墨西哥帽小波变换来计算DNA序列的Hurst指数，通过Hurst指数来刻画DNA序列的自相似特性。
Simulation results based on real traffic data show that the proposed method is better than those methods such as R/S, at the same time, using this method to estimate Hurst index can reveal the self-similar of real network traffic well. 采用真实网络突发业务的仿真结果表明,该文所提出的方法比传统的R/S法等估计方法具有更高的估计精度,能更好地反映真实网络业务流量的自相似性。
The Hurst indexes of the four proxies are FeO 0.85, Fe 2O 3 0.76, Fe 2O 3/FeO 0.65 and organic carbon 0.74 respectively, indicating that they have obviously long run dependence persistence. This is in accordance with previous studies [13-15] . 4项指标的Hurst指数 (FeO 0 .;85;Fe2 O3 0
The Influence of Different Grouping Methods on the Hurst Index 不同的分组方法对赫斯特指数的影响
Use of this drug is now fairly generalized. 这种药现在用得相当普遍。
Observed a state of generalized discontent. 观察一个有普遍不满情绪的国家
A study of the crash of Chinese stock market using local Hurst index idea 局部Hurst指数方法在研究我国股市大跌中的应用
Hurst Index and Its Application to Analysis of Exchangerate Fluctuations 赫斯特指数及其在汇率波动分析中的应用
The index is at the back (of the book). 索引在(书的)末尾。
Keywords R/S analysis;Hurst index;neural network;prediction;Luodai Gasfield; 分析;赫斯特指数;神经网络;预测;洛带气田;
Mrs. Hurst was not at home when I called on her. 我们拜访赫斯特太太时，她不在家。