Hernández Morales, MoisésRodríguez González, Juan TinguaroMontero De Juan, Francisco Javier2023-06-192023-06-192015978-84-608-4099-2https://hdl.handle.net/20.500.14352/35796V Simposio de Lógica Difusa y Soft Computing.This article is devoted to the replication of the nternal methodologies of credit rating agencies for rating lassification using fuzzy algorithms. To achieve this goal, the usage of different types of fuzzy algorithms (evolutionary and non-evolutionary fuzzy rule learning for classification) is explored, departing from historical data on credit ratings (ratings) and fourteen financial ratios used as explanatory variables. This study is a preliminary work focused on presenting the problem and the methodology used in order to lay the foundation for further improvement work.engbook parthttp://simd.albacete.org/actascaepia15/papers/00539.pdfrestricted access004.8Credit ratingCorporate ratingFuzzy algorithmsFuzzy classificationInteligencia artificial (Informática)1203.04 Inteligencia Artificial