Let the reader assign the subject headings

Social Terminology Enhancement through Vernacular Engagement: Exploring Collaborative Annotation to Encourage Interaction with Museum Collections

Never heard of folksomonies, or social tagging. Read this for a quick catchup.

Then try it out with
The ESP Tool

Researchers have always used each others work as building blocks in finding information (citation tracking). Building approaches like this into databases could help give users an useful alternative to controlled subject headings and keywords.