Ignorance prior

An ig­no­rance prior is a a prior prob­a­bil­ity func­tion on some prob­lem of in­ter­est, usu­ally with the in­tended prop­er­ties of be­ing sim­ple to de­scribe and fa­cil­i­tat­ing good learn­ing from the ev­i­dence. A clas­sic ex­am­ple would be the in­duc­tive prior for Laplace’s Rule of Suc­ces­sion.


  • Inductive prior

    Some states of pre-ob­ser­va­tion be­lief can learn quickly; oth­ers never learn any­thing. An “in­duc­tive prior” is of the former type.


  • Bayesian reasoning

    A prob­a­bil­ity-the­ory-based view of the world; a co­her­ent way of chang­ing prob­a­bil­is­tic be­liefs based on ev­i­dence.