Sample network showing probability of lung cancer given certain factors, alongside some symptoms.

S. Lauritzen, D. Spiegelhalter
HUGIN format
Lauritzen, S.L. & Spiegelhalter, D.J. (1988) Local Computations with Probabilities on Graphical Structures and Their Application to Expert Systems. Journal of the Royal Statistical Society. Series B (Methodological), 50(2):pp. 157-224, Wiley for the Royal Statistical Society
asia, lung cancer