Stock market positive feedback trading and return autocorrelation .

证券市场正反馈交易与收益自相关。

For this reason it is often called autocorrelation .

因为这个原因，它常常被称作是自相关。

Results indicate that soil salinity of each soil layer shows the moderate spatial variability and spatial autocorrelation resulting from compound impact of intrinsic and extrinsic factors , and the autocorrelation distance of each soil layer varied insignificantly .

结果表明：受内在因子和外在因子的共同作用，各土层含盐量均具有中等的变异强度和空间自相关性，自相关距差异不大。

Spatial autocorrelation analysis of heavy metals in cultivated soils in beijing .

北京耕作土壤重金属含量的空间自相关分析。

Autocorrelation of stock index and scaling invariability .

股价指数的自相关与标度不变性分析。