Research shows that different wavelets have a little effect for Wavelet Variance of stock index,and Chinese stock market is more fluctuant than America stock market.
研究结果表明:1、选用不同的小波计算股票指数序列的小波方差,其结果相差很小;2、中国股市比美国的波动性强。
参考来源 - 证券市场的分形特征研究It was proved to be reasonable to take the scale with the maximum of wavelet variance or wavelet information entropy as the characteristic scale for eco-environment.
以小波方差或小波信息熵峰值对应的尺度作为生态环境特征尺度较为合理。
参考来源 - 小波多尺度分析的应用研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Network traffic is broken down into different frequency, and anomaly change of network traffic is detected through the high-frequency power analysis, that is the change of wavelet variance.
将网络流量分解到不同的频段，根据高频段频谱能量，即小波方差的变化对网络流量异常进行检测。
On the basis of evaluation function of using image intensity variance, we proposed a new auto-focusing algorithm by means of Wavelet Transform Multi-Resolution Analysis(WTMRA) theory.
在传统图像灰度方差评价函数的基础上，利用小波多分辨率分析，提出了一种新的自动聚焦算法。
Secondly, using locally variance estimation, a locally adaptive image-denoising algorithm was presented. Also this algorithm could be applied to the complex wavelet domain.
在实验中，将该算法分别应用到实值离散小波变换域和双树复数小波变换域，并和隐马尔科夫模型的去噪方法做了比较分析。
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