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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/207506
Fuzzy classification with distance-based depth prototypes: High-dimensional unsupervised and/or supervised problems
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Supervised and unsupervised classification is crucial in many areas where different types of data sets are common, such as biology, medicine, or industry, among others. A key consideration is that some units are more typical of the group they belong to than others. For this reason, fuzzy classification approaches are necessary. In this paper, a fuzzy supervised classification method, which is based on the construction of prototypes, is proposed. The method obtains the prototypes from an objective function that includes label information and a distance-based depth function. It works with any distance and it can deal with data sets of a wide nature variety. It can further be applied to data sets where the use of Euclidean distance is not suitable and to high-dimensional data (data sets in which the number of features is larger than the number of observations , often written as 𝑝 >> 𝑛). In addition, the model can also cope with unsupervised classification, thus becoming an interesting alternative to other fuzzy clustering methods. With synthetic data sets along with high-dimensional real biomedical and industrial data sets, we demonstrate the good performance of the supervised and unsupervised fuzzy proposed procedures.
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IRIGOIEN, Itziar, FERREIRO, Susana, SIERRA, Basilio, ARENAS SOLÀ, Concepción. Fuzzy classification with distance-based depth prototypes: High-dimensional unsupervised and/or supervised problems. _Applied Soft Computing_. 2023. Vol. 148, núm. 1-12. [consulta: 21 de gener de 2026]. ISSN: 1568-4946. [Disponible a: https://hdl.handle.net/2445/207506]