Published by the Foundation for Open Access Statistics
Editors-in-chief: Bettina GrĂ¼n, Edzer Pebesma & Achim Zeileis    ISSN 1548-7660; CODEN JSSOBK
The textcat Package for n-Gram Based Text Categorization in R | Hornik | Journal of Statistical Software
Authors: Kurt Hornik, Patrick Mair, Johannes Rauch, Wilhelm Geiger, Christian Buchta, Ingo Feinerer
Title: The textcat Package for n-Gram Based Text Categorization in R
Abstract: Identifying the language used will typically be the first step in most natural language processing tasks. Among the wide variety of language identification methods discussed in the literature, the ones employing the Cavnar and Trenkle (1994) approach to text categorization based on character n-gram frequencies have been particularly successful. This paper presents the R extension package textcat for n-gram based text categorization which implements both the Cavnar and Trenkle approach as well as a reduced n-gram approach designed to remove redundancies of the original approach. A multi-lingual corpus obtained from the Wikipedia pages available on a selection of topics is used to illustrate the functionality of the package and the performance of the provided language identification methods.

Page views:: 9801. Submitted: 2011-07-11. Published: 2013-02-07.
Paper: The textcat Package for n-Gram Based Text Categorization in R     Download PDF (Downloads: 10031)
Supplements:
textcat_1.0-0.tar.gz: R source package Download (Downloads: 409; 215KB)
v52i06.R: R example and replication code Download (Downloads: 440; 5KB)
simTCWiki.rda: Supplementary data in R binary format Download (Downloads: 435; 334KB)

DOI: 10.18637/jss.v052.i06

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Paper: Creative Commons Attribution 3.0 Unported License
Code: GNU General Public License (at least one of version 2 or version 3) or a GPL-compatible license.