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Erschienen in:
2009 | OriginalPaper | Buchkapitel
Extending Rule-Based Classifiers to Improve Recognition of Imbalanced Classes
verfasst von : Jerzy Stefanowski, Szymon Wilk
Erschienen in: Advances in Data Management
Verlag: Springer Berlin Heidelberg
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Knowledge discovery in general, and data mining in particular, have received a growing interest both from research and industry in recent years. Its main aim is to look for previously unknown relationships or patterns representing knowledge hidden in real-life data sets [16]. The typical representations of knowledge discovered from data are: associations, trees or rules, relational logic clauses, functions, clusters or taxonomies, or characteristic descriptions of concepts [16, 29, 21]. In this paper we focus on the rule-based representation. More precisely, we are interested in
decision
or
classification rules
that are considered in
classification
problems. In data mining other types of rules are also considered, e.g., association rules or action rules [16, 29, 34], however, in the text hereafter we will use the general term “rules” to refer specifically to decision rules.