why are directed graphical models called bayesian why are directed graphical models called why are directed graphical models called bayesian why are directed graphs called bayesian why are graphical models called bayesian why are directed graphical models called bayesian why are directed model why is directed graphical models called bayesian why is directed graphical model called bayesian why are directed graphical models called bayesian why are directed graphical models called bayesian why are directed models called bayesian why are directed graphical models called bayesian why are directed graphical models called bayesian why are directed graphics models called bayesian models why are directed graphical models called bayesian why are directed graphical models called bayesian why are graphical models called bayesian why are directed graphical models called bayesian why do we call the graphical model a bayesian model