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improve evidence handling in CLP(BN).

This commit is contained in:
Vitor Santos Costa 2009-09-09 18:02:09 -05:00
parent 0688fb4d68
commit 307446d000
3 changed files with 19 additions and 18 deletions
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25
packages/CLPBN/clpbn.yap
View File

@ -77,9 +77,10 @@
:- use_module('clpbn/evidence', :- use_module('clpbn/evidence',
[ [
store_evidence/1, store_evidence/1,
add_evidence/2,
incorporate_evidence/2, incorporate_evidence/2,
check_stored_evidence/2, check_stored_evidence/2,
add_evidence/2 put_evidence/2
]). ]).
:- use_module('clpbn/utils', :- use_module('clpbn/utils',
@ -284,17 +285,17 @@ process_var(V, _) :- throw(error(instantiation_error,clpbn(attribute_goal(V)))).
% %
% unify a CLPBN variable with something. % unify a CLPBN variable with something.
% %
verify_attributes(Var, T, Goals) :- verify_attributes(Var, T, Goal) :-
get_atts(Var, [key(Key),dist(Dist,Parents)]), !, get_atts(Var, [key(Key),dist(Dist,Parents)]), !,
/* oops, someone trying to bind a clpbn constrained variable */ /* oops, someone trying to bind a clpbn constrained variable */
Goals = [], bind_clpbn(T, Var, Key, Dist, Parents, Goal).
bind_clpbn(T, Var, Key, Dist, Parents).
verify_attributes(_, _, []). verify_attributes(_, _, []).
bind_clpbn(T, Var, _, _, _) :- nonvar(T), bind_clpbn(T, Var, _, _, _, do_not_bind_variable([put_evidence(T,Var)])) :-
!, ( add_evidence(Var,T) -> true ; writeln(T:Var), fail ). nonvar(T),
bind_clpbn(T, Var, Key, Dist, Parents) :- var(T), !.
bind_clpbn(T, Var, Key, Dist, Parents, []) :- var(T),
get_atts(T, [key(Key1),dist(Dist1,Parents1)]), get_atts(T, [key(Key1),dist(Dist1,Parents1)]),
( (
bind_clpbns(Key, Dist, Parents, Key1, Dist1, Parents1) bind_clpbns(Key, Dist, Parents, Key1, Dist1, Parents1)
@ -311,22 +312,22 @@ bind_clpbn(T, Var, Key, Dist, Parents) :- var(T),
; ;
fail fail
). ).
bind_clpbn(_, Var, _, _, _, _) :- bind_clpbn(_, Var, _, _, _, _, []) :-
use(bnt), use(bnt),
check_if_bnt_done(Var), !. check_if_bnt_done(Var), !.
bind_clpbn(_, Var, _, _, _, _) :- bind_clpbn(_, Var, _, _, _, _, []) :-
use(vel), use(vel),
check_if_vel_done(Var), !. check_if_vel_done(Var), !.
bind_clpbn(_, Var, _, _, _, _) :- bind_clpbn(_, Var, _, _, _, _, []) :-
use(jt), use(jt),
check_if_vel_done(Var), !. check_if_vel_done(Var), !.
bind_clpbn(T, Var, Key0, _, _, _) :- bind_clpbn(T, Var, Key0, _, _, _, []) :-
get_atts(Var, [key(Key)]), !, get_atts(Var, [key(Key)]), !,
( (
Key = Key0 -> true Key = Key0 -> true
; ;
% let us not loose whatever we had. % let us not loose whatever we had.
add_evidence(Var,T) put_evidence(T,Var)
). ).
fresh_attvar(Var, NVar) :- fresh_attvar(Var, NVar) :-

2
packages/CLPBN/clpbn/dists.yap
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@ -28,7 +28,7 @@
additive_dists/6 additive_dists/6
]). ]).
:- use_module(library(lists),[is_list/1,nth0/3,append/3]). :- use_module(library(lists),[nth0/3,append/3]).
:- use_module(library(matrix), :- use_module(library(matrix),
[matrix_new/4, [matrix_new/4,

10
packages/CLPBN/clpbn/vel.yap
View File

@ -215,11 +215,11 @@ process(LV0, _, Out) :-
multiply_tables(WorkTables, Out). multiply_tables(WorkTables, Out).
write_tables([]). write_tables([]).
write_tables([tab(Mat,_,_)|WorkTables]) :- write_tables([tab(Mat,_,_)|WorkTables]) :-
matrix:matrix_to_list(Mat,L), matrix:matrix_to_list(Mat,L),
writeln(L), writeln(L),
write_tables(WorkTables). write_tables(WorkTables).
find_best([], V, _TF, V, _, [], _). find_best([], V, _TF, V, _, [], _).