Dynamic Social Choice for Pronoun Resolution
Disambiguation of pronoun reference has been an important issue for both theoretical and computational linguists. While linguistic theories on binding conditions eliminate impossible readings to a certain extent, many inter-sentential anaphora remain ambiguous between bound variable reading and coreference with salient discourse entities, as in ``John said he broke his leg" where ``he" can refer either to ``John" or someone else previously mentioned (Reinhart 1983). Nishiguchi (2011 and others) consider pronoun resolution as a social choice among discourse participants which obeys Arrow's Impossibility Theorem (Arrow 1963). This paper further discusses discourse update of Social Welfare Function which provides updated variable assignment.

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