This paper introduces the process of data preparing processing of population information system data mining, including the regulation of population system, data clearing, data converting and ect.

本文主要介绍了人口信息系统数据挖掘的数据预处理过程，包括人口系统的属性规约，数据清洗和数据转换等具体过程。

youdao

In essence, Hadoop replaces the role of OLAP (online analytical processing) in preparing data to answer specific questions.

FORBES: Big Data Requires a Big, New Architecture