1. Agresti A (2010) Analysis of ordinal categorical data, 2nd edn. Wiley, NY
2. Bogue J, Ritson C (2004) Understanding consumers perceptions of product quality for lighter dairy products through the integration of marketing and sensory information. Acta Agr Scand C-Econ 1:67–77
3. Breiman L (1996) Bagging predictors. Mach Learn 24:123–140
4. Breiman L (2001) Random forest. Mach Learn 45:5–32
5. Breiman L, Friedman JH, Olshen RA, Stone CJ (1984) Classification and regression trees. Chapman & Hall, NY