V. Alabau, J. Andrés, F. Casacuberta, J. Civera, J. García-Hernández, A. Giménez, A. Juan, A. Sanchis, and E. Vidal. The naive Bayes model, generalisations and applications. In F. Pla, P. Radeva, and J. Vitrià, editors, Pattern Recognition: Progress, Directions and Applications, pages 162-179. Centre de Visió per Computador, 2006. ISBN 84-933652-6-2. The naive Bayes classification model is a very simple classification technique in which pattern features are assumed to be class-conditional independent. This is the so-called naive Bayes or independence assumption. In spite of being a strong, unrealistic assumption, the naive Bayes model often provides good results at low cost in terms of model complexity. The Pattern Recognition and Human Language Technology group from the Universitat Polit\`ecnica de Val\`encia maintains an active research line on this model, its generalisations (mainly discrete mixture models) and applications (text classification, word disambiguation and confidence measures for speech recognition, etc.).