SQS USES message sampling based on weighted random distribution, and it returns messages only from the sampled subset of servers when you query for messages.

SQS使用基于加权随机分布的消息取样，在查询消息时，它只从取样的一部分服务器返回消息。

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A weighted algorithm is proposed for reducing effectively the error caused by non-synchronous sampling in active power and power factor measurement.

提出了一种能有效地抑制由非同步采样引起的有功功率及功率因数的测量误差的加权算法。

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Through analyzing weighted method of image network sampling and statistic matching method of image network parameters, network analytical correction system of saline mud log has been compiled.

本文分析了图像网络采样加权算法及图像网络参数控制的统计拟合分析方法，编制了盐水泥浆测井资料的网络分析校正系统。

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How about the rate of GDP growth, the number of new housing starts, median household income, the producer price index and countless other economic indicators if they were reported without distortions caused by unstable concurrent seasonal adjustments, subjective hedonic deflators, chain-weighted substitutions, skewed sampling, delayed reporting, historical estimates in place of data gone unreported by failed companies, and other common bias factors?

FORBES: Distorted Government Statistics Endanger Our Economic Health