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Article type: Research Article
Authors: Shah, Mohak | Sokolova, Marina | Szpakowicz, Stan
Affiliations: Department of Computer Science, Laval University, Quebec, Canada. E-mail: [email protected] | Department of Computer Science, University of Montreal, Montreal, Canada. E-mail: [email protected] | School of Information Technology and Engineering, University of Ottawa, Ottawa, Canada. Institute of Computer Science, Polish Academy of Sciences, Warsaw, Poland. E-mail: [email protected]
Abstract: We introduce Process-Specific Feature Selection, an innovative procedure of feature selection for textual data. The procedure applies to data gathered in person-to-person communication. The procedure relies on the knowledge of the processes that govern such communication. It is general enough to represent data in a wide variety of domains. We present a case study of electronic negotiation, in which participants exchange text messages. We present the empirical results of classifying the outcomes of electronic negotiations based on such texts. The results achieved using process-specific feature selection are marginally better than those afforded by several traditional feature selection methods. We show that this tendency is consistent across several learning paradigms.
Keywords: textual data, feature selection, electronic negotiations, machine learning
Journal: Fundamenta Informaticae, vol. 74, no. 2-3, pp. 351-373, 2006
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