Teaching machines to triage Firefox bugs

To help get bugs in front of the right Firefox engineers quickly, we developed BugBug, a machine learning tool that automatically assigns a product and component for each new untriaged bug. (You can read more about this at have a large training set of data for this model: two decades worth of bugs which have been reviewed by Mozillians and assigned to products and components. Thus, we restrict the tool to only look at components with a number of bugs that is at least 1% of the number of bugs of the largest component.

Source: hacks.mozilla.org