Enriched Discretisation: Information Fusion from Supervised and Unsupervised Processing

Urszula Stańczyk (), Beata Zielosko () and Grzegorz Baron ()
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Urszula Stańczyk: Silesian University of Technology
Beata Zielosko: University of Silesia in Katowice, Faculty of Science and Technology, Institute of Computer Science
Grzegorz Baron: Silesian University of Technology

A chapter in Advances in Information Systems Development, 2024, pp 109-130 from Springer

Abstract: Abstract When data is incomplete and inconsistent, an approximation of concepts can be obtained by applying the rough set theory. The classical approach allows to recognise only nominal attributes, and only nominal classification is possible. To ensure that the inferred rules are of the highest quality, it is beneficial to have access to all available information. The completeness of information can be compromised when in the data preparation stage, discretisation is included as a necessary step. Even when it is performed taking into account the class labels of instances, discretisation can lead to some information loss. The paper illustrates a research framework that extends the transformation of continuous input features into categorical ones. Processing aims to improve the performance of rule-based classifiers created with rough set data mining. The experiments were conducted in the stylometry domain, with the main task of attribution of the authorship. The results obtained suggest that combining supervised discretisation with elements of unsupervised transformations can lead to improved predictions, thus demonstrating the advantages of the proposed research methodology.

Keywords: Information fusion; Discretisation; Stylometry; Decision rules; Rough set theory (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/978-3-031-57189-3_6

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