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yap-6.3/packages/CLPBN/examples/city.pfl
2013-01-07 14:59:51 +00:00

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/*
Model from the paper "First-order
probabilistic inference"
*/
:- use_module(library(pfl)).
:- set_solver(hve).
%:- set_solver(ve).
%:- set_solver(jt).
%:- set_solver(bdd).
%:- set_solver(bp).
%:- set_solver(cbp).
%:- set_solver(gibbs).
%:- set_solver(lve).
%:- set_solver(lkc).
%:- set_solver(lbp).
:- multifile person/2.
:- multifile ev/1.
person(joe,nyc).
person(p2, nyc).
person(p3, nyc).
person(p4, nyc).
person(p5, nyc).
ev(descn(p2, fits)).
ev(descn(p3, fits)).
ev(descn(p4, fits)).
ev(descn(p5, fits)).
bayes city_conservativeness(C)::[high,low] ;
cons_table ;
[person(_,C)].
bayes gender(P)::[male,female] ;
gender_table ;
[person(P,_)].
bayes hair_color(P)::[dark,bright], city_conservativeness(C) ;
hair_color_table ;
[person(P,C)].
bayes car_color(P)::[dark,bright], hair_color(P) ;
car_color_table ;
[person(P,_)].
bayes height(P)::[tall,short], gender(P) ;
height_table ;
[person(P,_)].
bayes shoe_size(P)::[big,small], height(P) ;
shoe_size_table ;
[person(P,_)].
bayes guilty(P)::[y,n] ;
guilty_table ;
[person(P,_)].
bayes descn(P)::[fits,dont_fit], car_color(P),
hair_color(P), height(P), guilty(P) ;
descn_table ;
[person(P,_)].
bayes witness(C), descn(Joe), descn(P2) ;
witness_table ;
[person(_,C), Joe=joe, P2=p2].
cons_table(
/* y */ [ 0.8,
/* n */ 0.2 ]).
gender_table(
/* male */ [ 0.55,
/* female */ 0.45 ]).
hair_color_table(
/* high low */
/* dark */ [ 0.05, 0.1,
/* bright */ 0.95, 0.9 ]).
car_color_table(
/* dark bright */
/* dark */ [ 0.9, 0.2,
/* bright */ 0.1, 0.8 ]).
height_table(
/* male female */
/* tall */ [ 0.6, 0.4,
/* short */ 0.4, 0.6 ]).
shoe_size_table(
/* tall short */
/* big */ [ 0.9, 0.1,
/* small */ 0.1, 0.9 ]).
guilty_table(
/* yes */ [ 0.23,
/* no */ 0.77 ]).
descn_table(
/* car_color(P), hair_color(P), height(P), guilty(P) */
/* fits */ [ 0.99, 0.5, 0.23, 0.88, 0.41, 0.3, 0.76, 0.87,
/* fits */ 0.44, 0.43, 0.29, 0.72, 0.23, 0.91, 0.95, 0.92,
/* dont_fit */ 0.01, 0.5, 0.77, 0.12, 0.59, 0.7, 0.24, 0.13,
/* dont_fit */ 0.56, 0.57, 0.71, 0.28, 0.77, 0.09, 0.05, 0.08 ]).
witness_table(
/* descn(Joe), descn(P2) */
/* t */ [ 0.2, 0.45, 0.24, 0.34,
/* f */ 0.8, 0.55, 0.76, 0.66 ]).
runall(G, Wrapper) :-
findall(G, Wrapper, L),
execute_all(L).
execute_all([]).
execute_all(G.L) :-
call(G),
execute_all(L).
is_joe_guilty(Guilty) :-
witness(nyc, t),
runall(X, ev(X)),
guilty(joe, Guilty).
% ?- is_joe_guilty(Guilty).