Focused crawls are collections of frequently-updated webcrawl data from narrow (as opposed to broad or wide) web crawls, often focused on a single domain or subdomain.
The Wayback Machine - https://web.archive.org/web/20161108071736/https://assets.wired.com/photos/w_1390,h_782/wp-content/uploads/2016/10/predictive_incarceration-1-600x338-e1477684763849.png