Content Analytics lets us attach metadata facets to a document, or to text fragments within a document. Is there any way to also represent metadata fields that apply to groups of documents within a collection? A subfolder containing multiple documents would be one such group, but there could be other file groupings where shared metadata makes sense.
For example, say that a collection consists of letters from clients. Every letter is assigned a Client Name facet, derived from its own text. Some, but not all, letters also have a Client Address facet. Is it possible for the Client Address facet to be shared among all the letters with the same Client Name?
I am thinking of perhaps a custom annotator, but am unsure if that can only see a single document, not analyze relationships among multiple documents in the collection. Any advice is appreciated.