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Issue No.08 - August (2009 vol.21)
pp: 1118-1132
Pasquale Rullo , University of Calabria, Rende
Veronica Lucia Policicchio , University of Calabria, Rende
Chiara Cumbo , Exeura S.r.l., Rende
Salvatore Iiritano , Exeura S.r.l., Rende
ABSTRACT
This paper describes Olex, a novel method for the automatic induction of rule-based text classifiers. Olex supports a hypothesis language of the form "if T_{1} or \cdots or T_{n} occurs in document d, and none of T_{n + 1}, \ldots T_{n + m} occurs in d, then classify d under category c,” where each T_{i} is a conjunction of terms. The proposed method is simple and elegant. Despite this, the results of a systematic experimentation performed on the Reuters-21578, the Ohsumed, and the ODP data collections show that Olex provides classifiers that are accurate, compact, and comprehensible. A comparative analysis conducted against some of the most well-known learning algorithms (namely, Naive Bayes, Ripper, C4.5, SVM, and Linear Logistic Regression) demonstrates that it is more than competitive in terms of both predictive accuracy and efficiency.
INDEX TERMS
Data mining, text mining, clustering, classification, and association rules, mining methods and algorithms.
CITATION
Pasquale Rullo, Veronica Lucia Policicchio, Chiara Cumbo, Salvatore Iiritano, "Olex: Effective Rule Learning for Text Categorization", IEEE Transactions on Knowledge & Data Engineering, vol.21, no. 8, pp. 1118-1132, August 2009, doi:10.1109/TKDE.2008.206
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