
41
Chapter 4
Exploring Content
to Find Entities
Exploratory data analysis is detective work…A detective
investigating a crime needs both tools and understanding…
Equally analysts of data need both tools and understanding.
Understanding has dierent limitations….one needs dierent
sorts of detailed understanding to detect criminals in London
slums, in a remote Welsh village, among Parisian aristocrats,
in the cattle-raising west, or in the Australian outback…e
Scotland Yard detective, however, would be far from useless in the
wild west, or in the outback. He has a certain general understand-
ing of conventional detective work that will help him ...