Data mining 数据挖掘

Data mining is the process of massaging the data held in the data warehouse into
more useful information. Data-mining tools are used to find an association and correlation
in data to produce metadata. Metadata can show previously unseen relationships
between individual subsets of information. It can reveal abnormal patterns not
previously apparent.

 

Data mining is the process of analyzing a data warehouse using
tools that look for trends, correlations, relationships, and anomalies without
knowing the meaning of the data. Metadata is the result of storing data within
a data warehouse and mining the data with tools. Data goes into a data
warehouse and metadata comes out of that data warehouse.