Much recent work in computational linguistics emphasizes the role of lexical information in syntactic representation and processing. In this paper, I propose to represent syntax as an abstraction of subcategorization frames, from a word-speciic level to a general, abstract level (syntactic categories). The representation is linguistically perspicuous, and useful for processing. I deene a parsin...

Almost all automatic semantic role labeling (SRL) systems rely on a preliminary parsing step that derives a syntactic structure from the sentence being analyzed. This makes the choice of syntactic representation an essential design decision. In this paper, we study the influence of syntactic representation on the performance of SRL systems. Specifically, we compare constituent-based and depende...

Xml documents conceptually are not trees, but forests. Therefore, we extend the concept of macro tree transducers (mtt’s) to a transformation formalism of forests, macro forest transducers (mft’s). We show that mft’s form a strict superset of mtt’s operating on forests (represented as binary trees). On the other hand, the transformation of every mft can be simulated by the composition of two mt...

An algorithm for automatic identification of topic and focus of the sentence is presented, based on dependency syntax and using written input, which is much more ambiguous than spoken utterance. 1. The dichotomy of topic and focus, based, in the Praguean Functional Generative Description, on the scale of communicative dynamism (underlying word order), is relevant not only for a possible placeme...

The field equations of the generalized field theory (GFT) are derived from an action principle. A comparison between (GFT), Møller’s tetrad theory of gravitation (MTT), and general relativity is carried out regarding the Lagrangian of each theory. The results of solutions of the field equations, of each theory, are compared in case of spherical symmetry. The differences between the results are ...

Since the mid-1960s, the development of Meaning-Text Theory (MTT) can be followed in Russian, French, and English publications. The main authors of this theory are I. A. Melt~uk and A. K. 7.olkowskij, the first works with a more global insight into MTT being 7.olkowskij and Mel~uk (1965, 1967). Since that time, MTT has been developing and has brought considerable results. Nowadays, there are hu...

This document gives a brief introduction to the topic of Semantic Role Labeling using Dependency Syntax. We also describe a system that has been developed and tested on a corpus from the CoNLL-20081 shared task. We evaluate the system and give a short discussion on further improvements. Our results are reasonably good compared to those reached during the shared task.

When creating a new resource, preprocessing the source texts before annotation is both ubiquitous and obvious. How the preprocessing affects the annotation effort for various tasks is for the most part an open question, however. In this paper, we study the effects of preprocessing on the annotation of dependency corpora and how annotation speed varies as a function of the quality of three diffe...

The paper describes a formal theory for the dependency approach to syntax. The formalism is able to deal with long-distance dependencies, involved in function sharing and extractions. The distinctive aspects of the approach are the use of non lexical categories and a GPSG-style treatment of long-distance dependencies. The formalism is applied to a number of coordination phenomena, that are well...