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A guided data projection technique for classi cation of sovereign ratings: the case of European Union 27
Sánchez-Monedero, J.; Campoy-Muñoz, P.; Gutiérrez, P.A.; Hervás-Martínez, César (2017-01-20)Sovereign rating has had an increasing importance since the beginning of the nancial crisis. However, credit rating agencies opacity has been criticised by several authors highlighting the suitability of designing more ...