diogo/yap-6.3
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be more careful about calling the solver:

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- only pass variables related to the query
  - call the solver in case we have only evidence
This commit is contained in:
Vitor Santos Costa 2008-10-29 18:23:26 +00:00
parent 181e122200
commit 7cbdad30f2
1 changed files with 25 additions and 18 deletions
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43
CLPBN/clpbn.yap
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@ -63,7 +63,9 @@
:- use_module('clpbn/evidence',
[
store_evidence/1,
incorporate_evidence/2
incorporate_evidence/2,
check_stored_evidence/2,
add_evidence/2
]).
:- use_module('clpbn/utils',
@ -71,6 +73,11 @@
sort_vars_by_key/3
]).
:- use_module('clpbn/connected',
[
influences/4
]).
:- dynamic solver/1,output/1,use/1,suppress_attribute_display/1.
solver(jt).
@ -109,7 +116,7 @@ clpbn_flag(suppress_attribute_display,Before,After) :-
{Var = Key with Dist} :-
put_atts(El,[key(Key),dist(DistInfo,Parents)]),
dist(Dist, DistInfo, Key, Parents),
add_evidence(Var,DistInfo,El).
add_evidence(Var,Key,DistInfo,El).
check_constraint(Constraint, _, _, Constraint) :- var(Constraint), !.
check_constraint((A->D), _, _, (A->D)) :- var(A), !.
@ -127,11 +134,13 @@ replace_var([V|_], V0, [NV|_], NV) :- V == V0, !.
replace_var([_|Vars], V, [_|NVars], NV) :-
replace_var(Vars, V, NVars, NV).
add_evidence(V,Distinfo,NV) :-
add_evidence(V,Key,Distinfo,NV) :-
nonvar(V), !,
get_evidence_position(V, Distinfo, Pos),
check_stored_evidence(Key, Pos),
clpbn:put_atts(NV,evidence(Pos)).
add_evidence(V,_,V).
add_evidence(V,K,_,V) :-
add_evidence(K,V).
clpbn_marginalise(V, Dist) :-
attributes:all_attvars(AVars),
@ -150,20 +159,17 @@ project_attributes(GVars, AVars) :-
clpbn_vars(AVars, DiffVars, AllVars),
get_clpbn_vars(GVars,CLPBNGVars0),
simplify_query_vars(CLPBNGVars0, CLPBNGVars),
write_out(Solver,CLPBNGVars, AllVars, DiffVars).
(
Solver = graphs
->
write_out(Solver, [[]], AllVars, DiffVars)
;
influences(AllVars, CLPBNGVars, _, NewAllVars),
writeln(AllVars:NewAllVars),
write_out(Solver, [CLPBNGVars], NewAllVars, DiffVars)
).
project_attributes(_, _).
call_solver(GVars, AVars) :-
AVars = [_|_],
solver(Solver),
( GVars = [_|_] ; Solver = graphs), !,
clpbn_vars(AVars, DiffVars, AllVars),
get_clpbn_vars(GVars,CLPBNGVars0),
simplify_query_vars(CLPBNGVars0, CLPBNGVars),
write_out(Solver,[CLPBNGVars], AllVars, DiffVars).
clpbn_vars(AVars, DiffVars, AllVars) :-
sort_vars_by_key(AVars,SortedAVars,DiffVars),
incorporate_evidence(SortedAVars, AllVars).
@ -192,6 +198,9 @@ get_rid_of_ev_vars([V|LVs0],[V|LVs]) :-
get_rid_of_ev_vars(LVs0,LVs).
% do nothing if we don't have query variables to compute.
write_out(graphs, _, AVars, _) :-
clpbn2graph(AVars).
write_out(vel, GVars, AVars, DiffVars) :-
vel(GVars, AVars, DiffVars).
write_out(jt, GVars, AVars, DiffVars) :-
@ -200,8 +209,6 @@ write_out(gibbs, GVars, AVars, DiffVars) :-
gibbs(GVars, AVars, DiffVars).
write_out(bnt, GVars, AVars, DiffVars) :-
do_bnt(GVars, AVars, DiffVars).
write_out(graphs, _, AVars, _) :-
clpbn2graph(AVars).
get_bnode(Var, Goal) :-
get_atts(Var, [key(Key),dist(Dist,Parents)]),