DZ Interset is a means of converting among various tag sets in natural language processing. The core idea is similar to interlingua-based machine translation.
DZ Interset defines a set of features that are encoded by the various tag sets. The set of features should be as universal as possible.
It does not need to encode everything that is encoded by any tag set but it should encode all information that people may want to access and/or port from one tag set to another.