The main role of data preprocessing is discussed and the components and methods of data preprocessing are introduced.
论述了数据预处理在数据挖掘中的重要地位，介绍了数据预处理所包含的内容和采用的方法。
An organization responsible for electrical standardization, including standards for materials, components and methods of measurement.
一个负责电工技术标准化的委员会，包括器材、元件以及测量方法的标准化。
An organization responsible for electrical standardization, including standards for materials, components and methods of measurement.
一个负责电工技术标准化的委员会，包括器材、元件以及测量方法的标准化。
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