利用自相关函数对恒生指数日收盘价时间序列中的自相似性进行了初步的实证和理论分析。

We do the initial identification and the theoretical analysis with the autocorrelation function towards the time series of HSI daily closing quotation.

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本文以名义尺度下的栅格数据作为研究对象，通过定义空间自邻接指数提出一种空间自相关测度算法，并将其应用到土地利用数据分析中得到了较好的试验结果。

While defining the spatial auto-relation index and an algorithm for spatial autocorrelation measurement is propsed, and the fair results are obtained in the experiment with the land use data.

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阐述了指数期货中均值回复现象产生的原因，并进而分析了基差变化中的一阶自相关系数在不同情况下的计算方法。

The article analyzed the reasons that aroused the mean reversion in stock index futures, and the calculation methods of the coefficient of the first-order autocorrelation in basis change.

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