Paper: Wrapping Of Trees

ACL ID P04-1071
Title Wrapping Of Trees
Venue Annual Meeting of the Association of Computational Linguistics
Session Main Conference
Year 2004

We explore the descriptive power, in terms of syn- tactic phenomena, of a formalism that extends Tree- Adjoining Grammar (TAG) by adding a fourth level of hierarchical decomposition to the three levels TAG already employs. While extending the descrip- tive power minimally, the additional level of decom- position allows us to obtain a uniform account of a range of phenomena that has heretofore been dif- ficult to encompass, an account that employs uni- tary elementary structures and eschews synchro- nized derivation operations, and which is, in many respects, closer to the spirit of the intuitions under- lying TAG-based linguistic theory than previously considered extensions to TAG.