Some stickers assign a category, for instance adding the sticker {{Multiple Births|2}} immediately puts the profile in the category "Twins". But I don't think that {{Born in Yorkshire}} does, at least the related sticker {{Norway Native}} doesn't.
To the extent that adding a sticker also will assign a category, you might call it "Categorization", but generally I think it's more suitable with "Bio Improvement".
By the way, adding a sticker without doing anything else with a profile is not recommended. See the Help:Stickers page that states:
Profile Stickers can be placed on any profile on which they are appropriate by any contributor to the profile. In this context, "contributor" means anyone who is on the Trusted List and has been following changes or anyone who has been contributing to the profile