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yap-6.3/packages/CLPBN/examples/School/parlearn.yap

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:- [pos:sample32].
:- ['~/Yap/work/CLPBN/clpbn/examples/School/school_32'].
% These libraries provide same functionality.
:- [library('clpbn/learning/mle')].
%:- [library('clpbn/learning/bnt_parms')].
:- [library(matrix)].
main :-
findall(X,goal(X),L),
learn_parameters(L,CPTs),
write_cpts(CPTs).
goal(professor_ability(P,V)) :-
pos:professor_ability(P,V),
p(pa, M), random < M.
goal(professor_popularity(P,V)) :-
pos:professor_popularity(P,V),
p(pp, M), random < M.
goal(registration_grade(P,V)) :-
pos:registration_grade(P,V),
p(rg, M), random < M.
goal(student_intelligence(P,V)) :-
pos:student_intelligence(P,V),
p(si, M), random < M.
goal(course_difficulty(P,V)) :-
pos:course_difficulty(P,V),
p(cd, M), random < M.
goal(registration_satisfaction(P,V)) :-
pos:registration_satisfaction(P,V),
p(rs, M), random < M.
% sampling parameter
p(_, 1.0).
write_cpts([]).
write_cpts([CPT|CPTs]) :-
matrix_to_list(CPT,L),
format('CPT=~w~n',[L]),
write_cpts(CPTs).