Generating numerical approximations

Power, Richard and Williams, Sandra (2012). Generating numerical approximations. Computational Linguistics, 38(1) pp. 113–134.

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DOI (Digital Object Identifier) Link:	http://dx.doi.org/10.1162/COLI_a_00086

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Abstract

We describe a computational model for planning phrases like “more than a quarter” and “25.9 per cent” which describe proportions at different levels of precision. The model lays out the key choices in planning a numerical description, using formal definitions of mathematical form (e.g., the distinction between fractions and percentages) and roundness adapted from earlier studies. The task is modeled as a constraint satisfaction problem, with solutions subsequently ranked by preferences (e.g., for roundness). Detailed constraints are based on a corpus of numerical expressions collected in the NUMGEN project, and evaluated through empirical studies in which subjects were asked to produce (or complete) numerical expressions in specified contexts.

Item Type:

Journal Article

2012 Association for Computational Linguistics

ISSN:

1530-9312

External Project Funding Details: