Attention, intentions, and the structure of discourse
Computational Linguistics
Centering: a framework for modeling the local coherence of discourse
Computational Linguistics
A corpus-based evaluation of centering and pronoun resolution
Computational Linguistics - Special issue on computational anaphora resolution
Functional centering: grounding referential coherence in information structure
Computational Linguistics
Never look back: an alternative to centering
COLING '98 Proceedings of the 17th international conference on Computational linguistics - Volume 2
A centering approach to pronouns
ACL '87 Proceedings of the 25th annual meeting on Association for Computational Linguistics
Analysis of syntax-based pronoun resolution methods
ACL '99 Proceedings of the 37th annual meeting of the Association for Computational Linguistics on Computational Linguistics
Centering: A Parametric Theory and Its Instantiations
Computational Linguistics
Hobbs' algorithm for pronoun resolution in Portuguese
MICAI'07 Proceedings of the artificial intelligence 6th Mexican international conference on Advances in artificial intelligence
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Pronominal anaphora resolution consists in finding a referent for a given pronoun. Although being essential for many natural language processing systems, such as automatic translators, text generators and summarizers, there is a myriad of issues regarding this task, particularly when there ismore than one possible referent for a given pronoun. Over the years, several approaches have been proposed to deal with this challenge, usually taking only syntactic information into account. On the other hand, methods based on Centering Theory rely on concepts such as coherence, for instance, to do the job. In this work, we describe our implementation and evaluation of existing centering-based algorithms for pronominal resolution in Portuguese. As a result, we indicate both the strong and weak points of each of the tested algorithms, thereby helping other researchers to make a more informed decision about which method to use.