HANDLING THE IMPACT OF LOW FREQUENCY EVENTS ON CO-OCCURRENCE BASED MEASURES OF WORD SIMILARITY - A Case Study of Pointwise Mutual Information

François Role, Mohamed Nadif

Abstract

Statistical measures of word similarity are widely used in many areas of information retrieval and text mining. Among popular word co-occurrence based measures is Pointwise Mutual Information (PMI). Altough widely used, PMI has a well-known tendency to give excessive scores of relatedness to word pairs that involve low frequency words. Many variants of it have therefore been proposed, which correct this bias empirically. In contrast to this empirical approach, we propose formulae and indicators that describe the behavior of these variants in a precise way so that researchers and practitioners can make a more informed decision as to which measure to use in different scenarios.

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Paper Citation


in Harvard Style

Role F. and Nadif M. (2011). HANDLING THE IMPACT OF LOW FREQUENCY EVENTS ON CO-OCCURRENCE BASED MEASURES OF WORD SIMILARITY - A Case Study of Pointwise Mutual Information . In Proceedings of the International Conference on Knowledge Discovery and Information Retrieval - Volume 1: KDIR, (IC3K 2011) ISBN 978-989-8425-79-9, pages 218-223. DOI: 10.5220/0003655102260231


in Bibtex Style

@conference{kdir11,
author={François Role and Mohamed Nadif},
title={HANDLING THE IMPACT OF LOW FREQUENCY EVENTS ON CO-OCCURRENCE BASED MEASURES OF WORD SIMILARITY - A Case Study of Pointwise Mutual Information},
booktitle={Proceedings of the International Conference on Knowledge Discovery and Information Retrieval - Volume 1: KDIR, (IC3K 2011)},
year={2011},
pages={218-223},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003655102260231},
isbn={978-989-8425-79-9},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Knowledge Discovery and Information Retrieval - Volume 1: KDIR, (IC3K 2011)
TI - HANDLING THE IMPACT OF LOW FREQUENCY EVENTS ON CO-OCCURRENCE BASED MEASURES OF WORD SIMILARITY - A Case Study of Pointwise Mutual Information
SN - 978-989-8425-79-9
AU - Role F.
AU - Nadif M.
PY - 2011
SP - 218
EP - 223
DO - 10.5220/0003655102260231