How is information extraction related to data extraction? Is it a subfield or can it be used equivalently? Data is also information. What is the relation and what are the differences?
I want to write about the general topic "data extraction". I can hardly find papers about "data extraction", but most papers deal with "web data extraction", which I want to consider separately. Maybe someone can provide me some solid papers about "data extraction".
Of course, I had a look at https://en.wikipedia.org/wiki/Information_extraction and https://en.wikipedia.org/wiki/Data_extraction but this is not a reliable source. There must be more solid information about that somewhere.