Have volunteers tag articles over several passes with each pass being a subset of tags

[mchladek]

Right now volunteers tag/code articles using all ~30 categories at once, which are too many to keep in mind while tagging. Categories should be broken into groups (e.g., crimes, agencies, etc.) and volunteers should be assigned to one group for a while, only tagging articles for the group of tags they're assigned to.

Partially coded articles will be prioritized when a volunteer logs in and starts coding. Once there are no remaining partially coded articles, the volunteer will be presented a random article to code.

Volunteers should always tag addresses/location data regardless of the group of categories they are currently tagging.