As Data mining explain as a the "knowledge discovery in databases (KDD)" process. Anyway, this definition might mislead, because the goal of data mining is the extraction of patterns and knowledge from large amounts of data, not the extraction (mining) of data itself.
In text mining, data are unstructured texts or raw matter and are not strucred as meta-data (=features). Few informatician are in favour to rename it as "interactive linguistics" to avoid the confusion.
Yes it is very helpful, thanks.
— Any 26 days ago