Résumé
Text categorization is a well-known task essentially based on statistical approaches using neural networks, Support Vector Machines and other machine learning algorithms. Texts are generally considered as bags of words without any order. Although these approaches have proven to be efficient, they do not provide users with comprehensive and reusable rules about their data. These rules are however very important for users in order to describe the trends from the data they have to analyze. In this framework, an association-rule based approach has been proposed by Bing Liu (CBA). In this paper, we propose to extend this approach by using sequential patterns in the SPaC method (Sequential Patterns for Classification). Taking order into account allows us to represent the succession of words through a document without complex and time-consuming representations and treatments such as those performed in natural language and grammatical methods. The original method we propose here consists in mining sequential patterns in order to build a classifier. We show on experiments that our proposition is relevant, and that it is very interesting compared to other methods. In particular, our method has better results than SVM when SVM do not perform well. Moreover, our approach is very interesting for huge volumes of data.