Laura Kallmeyer will be talking this Thursday during the Xtag slot. We are using the Xtag meeting slot for Laura Kallmeyer's talk this Thursday. Laura is a visiting researcher at IRCS from the University of Tubingen.
Descriptions lead to underspecification in a very natural way.
Approaches in the context of underspecified semantics that deal with scope ambiguities have the common property that they all use a partial order to represent scope. For scope ambiguities, this partial order is not fully specified. First a general definition of TDGs is presented, and afterwards a restricted variant called local TDGs is proposed. Since the elements of a local TDG are tree descriptions, an extended domain of locality as in TAGs is provided by this formalism. Consequently, local TDGs can be lexicalized, and local dependencies such as filler gap dependencies can be expressed in the descriptions occurring in the grammar.