Speaker: Prof. Arvind K. Joshi, PhD (University of Pennsylvania)
                Henry Salvatori Professor
                Department of Computer and Information Science, and
                Institue for Research in Cognitive Science
                University of Pennsylvania
                Member of the National Academy of Engineering

Title: Domains Of Locality: Starting With Complex Primitives Pays Off

Date and Time: March 8, 2002, 3:00 PM<
Place: Coates 155

Prof. Arvind K. Joshi

Abstract:

Each grammar formalism specifies a domain of locality, i.e., a domain over which various dependencies (for example, syntactic and semantic) can be specified, It turns out that the various properties of a formalism (syntactic, semantic, computational, statistical, and even psycholinguistic), follow, to a large extent, from the initial specification of the domain of locality. In this talk, I will briefly explore a domain of locality specified by structured objects (trees or acyclic graphs) instead of strings, in the context of some linguistic, computational, statistical and psycholinguistic properties. Such studies provide insights into many aspects of strong generative capacity which is relevant to characterizing structural description. Recently, they have also found some applications to the description of secondary and higher structures of some biological sequences.

Prof. Joshi (left) and Prof. Iyengar, Chair of Computer Science, LSU (right)

Prof. Joshi (right) and Prof. Kundu, Computer Science, LSU (left)