Tractable Lexical-Functional Grammar

Lexical Functional Grammar

Lexical Functional Grammar (LFG) is a linguistic theory which studies the various aspects of linguistic structure and the relations between them. Traditional LFG analyses focus on two syntactic structures. Constituent structure (cstructure) represents word order and phrasal groupings, and functional structure (f-structure) represents grammatical functions like subject and object. These structur...

Lexical Functional Grammar

The term Lexical Functional Grammar (LFG) first appeared in print in the 1982 volume edited by Joan Bresnan: The Mental Representation of Grammatical Relations, the culmination of many years of research. LFG differs from both transformational grammar and relational grammar in assuming a single level of syntactic structure. LFG rejects syntactic movement of constituents as the mechanism by which...

Optimality-theoretic Lexical Functional Grammar

Automatic Lexical Functional Grammar Development

This paper presents the modifications in automatic Lexical Functional Grammar development technique. It proposes a new syntax customized from base syntax pattern of a regular expression based CFG template. This modification is helpful to add generalization in these templates with the coordination of constraint solver of LFG parsers. Further this paper reports the results of the system that has ...

A DOP model for Lexical-Functional Grammar

It is well-known that there exist many syntactic and semantic dependencies that are not reflected directly in a surface tree. All modern linguistic theories propose more articulated representations and mechanisms in order to characterize such linguistic phenomena. The Tree-DOP model is thus limited in that it cannot account for these phenomena. In this chapter, we show how a DOP model can be de...