Predicate-Argument EXtractor (PAX)


Screenshot of MultiPAX resultsScreenshot of MultiPAX resultsIn this paper, we describe the open source GATE component PAX for extracting predicate-argument structures (PASs). PASs are used in various contexts to represent relations within a sentence structure. Different ``semantic'' parsers extract relational information from sentences but there exists no common format to store this information. Our predicate-argument extractor component (PAX) takes the annotations generated by selected parsers and transforms the parsers' results to predicate-argument structures represented as triples (subject-verb-object). This allows downstream components in an analysis pipeline to process PAS triples independent of the deployed parser, as well as combine the results from several parsers within a single pipeline.


Ralf Krestel, René Witte, and Sabine Bergler. Predicate-Argument EXtractor (PAX). New Challenges for NLP Frameworks, Workshop at LREC 2010, pp.51–54, May 22, 2010, Valletta, Malta.

Bibtex entry (also for download):

  author = {Ralf Krestel and Ren{\'e} Witte and Sabine Bergler},
  title = {{Predicate-Argument EXtractor (PAX)}},
  booktitle = {New Challenges for NLP Frameworks},
  pages =  {51--54},
  year = {2010},
  month = {May 22},
  publisher = {ELRA},
  address = {Valletta, Malta},


The GATE component described in this paper is available as open source software.


Our paper only: lrec2010-pax.pdf
MD5 checksum: b4798c8520f1a42d52a99e025d19ac56
Also available: complete workshop proceedings

Copyright © 2010 Ralf Krestel, René Witte, and Sabine Bergler. All rights reserved.