A language for the statement of binary relations over feature structures
Graham J. Russell, Afzal Ballim, Dominique Estival, Susan Warwick-Armstrong · 1991
Unification is often the appropriate method for expressing relations between representations in the form of feature structures; however, there are circumstances in which a different approach is desirable.A declarative formalism is presented which permits direct mappings of one feature structure into another, and illustrative examples are given of its application to areas of current interest.