Anaphora Resolution for Bengali: An Experiment with Domain Adaptation

Authors

  • Utpal Kumar Sikdar Department of Computer Science & Engineering, Indian Institute of Technology Patna, Patna
  • Asif Ekbal Department of Computer Science & Engineering, Indian Institute of Technology Patna, Patna
  • Sriparna Saha Department of Computer Science & Engineering, Indian Institute of Technology Patna, Patna
  • Olga Uryupina Department of Information Engineering & Computer Science, University of Trento.
  • Massimo Poesio Department of Information Engineering & Computer Science, University of Trento.

DOI:

https://doi.org/10.13053/cys-17-2-1518

Keywords:

Anaphora/Co-reference resolution, CRF based mention detection, Bengali, BART.

Abstract

In this paper we present our first attempt on anaphora resolution for a resource poor language, namely Bengali. We address the issue of adapting a state-of-the-art system, BART, which was originallydeveloped for English. Overall performance of co-reference resolution greatly depends on the high accurate mention detectors. We develop a number of models based on the heuristics used as well as on theparticular machine learning employed. Thereafter we perform a series of experiments for adapting BART for Bengali. Our evaluation shows, a language-dependant system (designed primarily for English) can achieve a good performance level when re-trained and tested on a new language with proper subsets of features. The system produces the recall, precision and F-measure values of 56.00%, 46.50% and 50.80%, respectively.The contribution of this work is two-fold, viz. (i). attempt to build a machine learning based anaphora resolution system for a resource-poor Indian language; and (ii). domain adaptation of a state-of-the-art Englishco-reference resolution system for Bengali, which has completely different orthography and characteristics.

Downloads

Published

2013-06-29

Issue

Vol. 17 No. 2 (2013): 17(2) April-June 2013

Section

Articles

License 

Hereby I transfer exclusively to the Journal "Computación y 
Sistemas", published by the Computing Research Center (CIC-IPN),
the Copyright of the aforementioned paper. I also accept that these 
rights will not be transferred to any other publication, in any other 
format, language or other existing means of developing.
I certify that the paper has not been previously disclosed or simultaneo
usly submitted to any other publication, and that it does not contain 
material whose publication would violate the Copyright or other 
proprietary rights of any person, company or institution. I certify that 
I have the permission from the institution or company where I work or 
study to publish this work.
The representative author accepts the responsibility for the publication
of this paper on behalf of each and every one of the authors. 
This transfer is subject to the following conditions:
  • The authors retain all ownership rights (such as patent rights) of this work, except for the publishing rights transferred to the CIC, through this document.
  • Authors retain the right to publish the work in whole or in part in any book they are the authors or publishers. They can also make use of this work in conferences, courses, personal web pages, and so on.
  • Authors may include working as part of his thesis, for non-profit distribution only.