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Raciolinguistics

Edited by H. Samy Alim, John R. Rickford, and Arnetha F. Ball

Raciolinguistics "Brings together a critical mass of scholars to form a new field dedicated to theorizing and analyzing language and race together."


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Sociolinguistics from the Periphery

By Sari Pietikäinen, FinlandAlexandra Jaffe, Long BeachHelen Kelly-Holmes, and Nikolas Coupland

Sociolinguistics from the Periphery "presents a fascinating book about change: shifting political, economic and cultural conditions; ephemeral, sometimes even seasonal, multilingualism; and altered imaginaries for minority and indigenous languages and their users."


Academic Paper


Title: WordICA—emergence of linguistic representations for words by independent component analysis
Author: Timo Honkela
Institution: Aalto University School of Science and Technology
Author: Aapo Hyvärinen
Institution: University of Helsinki
Author: Jaako J Väyrynen
Institution: Aalto University School of Science and Technology
Linguistic Field: Applied Linguistics; Computational Linguistics; Text/Corpus Linguistics
Abstract: We explore the use of independent component analysis (ICA) for the automatic extraction of linguistic roles or features of words. The extraction is based on the unsupervised analysis of text corpora. We contrast ICA with singular value decomposition (SVD), widely used in statistical text analysis, in general, and specifically in latent semantic analysis (LSA). However, the representations found using the SVD analysis cannot easily be interpreted by humans. In contrast, ICA applied on word context data gives distinct features which reflect linguistic categories. In this paper, we provide justification for our approach called WordICA, present the WordICA method in detail, compare the obtained results with traditional linguistic categories and with the results achieved using an SVD-based method, and discuss the use of the method in practical natural language engineering solutions such as machine translation systems. As the WordICA method is based on unsupervised learning and thus provides a general means for efficient knowledge acquisition, we foresee that the approach has a clear potential for practical applications.

CUP AT LINGUIST

This article appears IN Natural Language Engineering Vol. 16, Issue 3.

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