Accession Number:

ADA458874

Title:

Speed and Accuracy in Shallow and Deep Stochastic Parsing

Descriptive Note:

Conference paper

Corporate Author:

PALO ALTO RESEARCH CENTER CA

Report Date:

2004-01-01

Pagination or Media Count:

9.0

Abstract:

This paper reports some experiments that Compare the accuracy and performance of two stochastic parsing systems. The currently popular Collins parser is a shallow parser whose output contains more detailed semantically relevant information than other such parsers. The XLE parser is a deep-parsing system that couples a Lexical Functional Grammar to a log- linear disambiguation component and provides much richer representations theory. We measured the accuracy of both systems against a gold standard of the PARC 700 dependency bank, and also measured their processing times. We found the deep-parsing system to be more accurate than the Collins parser with only a slight reduction in parsing speed.

Subject Categories:

  • Linguistics
  • Statistics and Probability

Distribution Statement:

APPROVED FOR PUBLIC RELEASE