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Computación y Sistemas

Print version ISSN 1405-5546


KUMAR SIKDAR, Utpal et al. Anaphora Resolution for Bengali: An Experiment with Domain Adaptation. Comp. y Sist. [online]. 2013, vol.17, n.2, pp.137-146. ISSN 1405-5546.

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 originally developed 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 the particular 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 English co-reference resolution system for Bengali, which has completely different orthography and characteristics.

Keywords : Anaphora/Co-reference resolution; CRF based mention detection; Bengali; BART.

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