Improving data driven dependency parsing using clausal information

  • Authors:
  • Phani Gadde;Karan Jindal;Samar Husain;Dipti Misra Sharma;Rajeev Sangal

  • Affiliations:
  • Language Technologies Research Centre, IIIT-Hyderabad, India;Language Technologies Research Centre, IIIT-Hyderabad, India;Language Technologies Research Centre, IIIT-Hyderabad, India;Language Technologies Research Centre, IIIT-Hyderabad, India;Language Technologies Research Centre, IIIT-Hyderabad, India

  • Venue:
  • HLT '10 Human Language Technologies: The 2010 Annual Conference of the North American Chapter of the Association for Computational Linguistics
  • Year:
  • 2010

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Abstract

The paper describes a data driven dependency parsing approach which uses clausal information of a sentence to improve the parser performance. The clausal information is added automatically during the parsing process. We demonstrate the experiments on Hindi, a language with relatively rich case marking system and free-word-order. All the experiments are done using a modified version of MSTParser. We did all the experiments on the ICON 2009 parsing contest data. We achieved an improvement of 0.87% and 0.77% in unlabeled attachment and labeled attachment accuracies respectively over the baseline parsing accuracies.