Naive-Bayes classifiers (Langley, Iba, & Thompson 1992) are generally easy to understand and the induction of these classifiers is extremely fast, requiring only a single pass through the data if all attributes are discrete. Naive-Bayes classifiers are also very simple and easy to understand. Kononenko (1993) wrote that physicians found the induced classifiers easy to understand when the log probabilities were presented as evidence that adds up in favor of different classes.