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ACL
2009

Directional Distributional Similarity for Lexical Expansion

10 years 9 months ago
Directional Distributional Similarity for Lexical Expansion
Distributional word similarity is most commonly perceived as a symmetric relation. Yet, one of its major applications is lexical expansion, which is generally asymmetric. This paper investigates the nature of directional (asymmetric) similarity measures, which aim to quantify distributional feature inclusion. We identify desired properties of such measures, specify a particular one based on averaged precision, and demonstrate the empirical benefit of directional measures for expansion.
Lili Kotlerman, Ido Dagan, Idan Szpektor, Maayan Z
Added 16 Feb 2011
Updated 16 Feb 2011
Type Journal
Year 2009
Where ACL
Authors Lili Kotlerman, Ido Dagan, Idan Szpektor, Maayan Zhitomirsky-Geffet
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