Here is search logs of 650,000 AOL users. It's very interesting to view search history of particular person and analyze his personality. Let's do it together! Read more about AOL search database scandal or view research papers on web searching.
retract
In topology, a retraction, as the name suggests, "retracts" an entire space into a subspace. A eformation retraction is a map which captures the idea of continuously shrinking a space into a subspace.