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yap-6.3/packages/CLPBN/examples/learning/sprinkler_params.yap
2012-06-22 19:00:12 +01:00

41 lines
815 B
Prolog

% learn distribution for school database.
:- ['../sprinkler.pfl'].
:- use_module(library(clpbn/learning/em)).
%% data(t,t,t,t).
data(t,f,_,t).
%% data(_,t,_,t).
%% data(t,t,f,f).
%% data(t,t,f,t).
%% data(t,_,_,t).
%% data(t,f,t,t).
%% data(t,t,f,t).
%% data(t,_,f,f).
%% data(t,t,f,f).
%% data(f,f,t,t).
%% data(t,t,_,f).
%% data(t,f,f,t).
%% data(t,f,t,t).
%:- clpbn:set_clpbn_flag(em_solver,gibbs).
%:- clpbn:set_clpbn_flag(em_solver,jt).
%:- clpbn:set_clpbn_flag(em_solver,ve).
:- clpbn:set_clpbn_flag(em_solver,bp).
timed_main :-
statistics(runtime, _),
main(Lik),
statistics(runtime, [T,_]),
format('Took ~d msec and Lik ~3f~n',[T,Lik]).
main(Lik) :-
findall(X,scan_data(X),L),
em(L,0.01,10,_,Lik).
scan_data(example([wet_grass(W),sprinkler(S),rain(R),cloudy(C)])) :-
data(W, S, R, C).