The process data used in the soft-sensing and system modeling was preprocessed by removing abnormal data and smoothing data before modeling.
采集用于软测量和系统建模的过程数据，并预处理，包括剔除异常数据、平滑数据。
In this situation, (rarefying) and smoothing data is needed. This paper introduces an algorithm of smoothing and rarefying for (automatically) generated contour.
针对这种情况，需要对数据进行圆滑或抽稀处理，这里介绍了对自动生成的等高线进行圆滑和抽稀处理的一种算法。
Some sensors have their own data smoothing internal circuitry.
某些传感器自身就具有数据平滑内部电路。
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