H

Where scores of a result can fall from 0 - 100, based on the degree to which the search data and file data values match.

An unsupervised learning method whereby a series of files is divided into multiple groups, so that the grouped files are more similar to the files in their own group and less similar to those in the other groups.

Active data collection refers to data that is collected knowingly and transparently from the user, such as through a web form, check box, or survey.