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/doi: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
Copyright Holders:	2012 Association for Computational Linguistics
ISSN:	1530-9312
Funders:	Engineering and Physical Sciences Research Council (EPSRC) grants G033579/1 (Open University) and G032459/1 (University of Manchester).
Academic Unit/Department:	Mathematics, Computing and Technology > Computing
Interdisciplinary Research Centre:	Centre for Research in Computing (CRC)
Related URLs:	http://www.mitpressjournals.org/toc/coli...(Other)
Item ID:	33170
Depositing User:	Sandra Williams
Date Deposited:	09 Mar 2012 11:03
Last Modified:	05 Dec 2012 10:32
URI:	http://oro.open.ac.uk/id/eprint/33170

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