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Probabilistic Distributional Semantics with Latent Variable Models

delete2014-09-01
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OA
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D
Diarmuid Ó Séaghdha *
A
Anna Korhonen
DOI:10.1162/COLI_a_00194delete
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Abstract

Abstract

En 中文
We describe a probabilistic framework for acquiring selectional preferences of linguistic predicates and for using the acquired representations to model the effects of context on word meaning. Our framework uses Bayesian latent-variable models inspired by, and extending, the well-known Latent Dirichlet Allocation (LDA) model of topical structure in documents; when applied to predicate-argument data, topic models automatically induce semantic classes of arguments and assign each predicate a distribution over those classes. We consider LDA and a number of extensions to the model and evaluate them on a variety of semantic prediction tasks, demonstrating that our approach attains state-of-the-art performance. More generally, we argue that probabilistic methods provide an effective and flexible methodology for distributional semantics.
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Journal

Computational Linguistics cover
Computational Linguistics
IF:
5.3
Papers:
837
Citations:
2.7K

Organization

U
University of Cambridge
Scholars:
7.7W
Papers: 7.1W
Citations: 13.7W