1273 lines
28 KiB
C
1273 lines
28 KiB
C
/*
|
|
|
|
EMBLEM and SLIPCASE
|
|
|
|
Copyright (c) 2013, Fabrizio Riguzzi and Elena Bellodi
|
|
|
|
This package uses the library cudd, see http://vlsi.colorado.edu/~fabio/CUDD/
|
|
for the relative license.
|
|
|
|
*/
|
|
|
|
#include <math.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include "config.h"
|
|
#include "cudd_config.h"
|
|
#if HAVE_CUDD_CUDDINT_H
|
|
#include "cudd/cuddInt.h"
|
|
#elif HAVE_CUDDINT_H
|
|
#include "cuddInt.h"
|
|
#endif
|
|
#include "YapInterface.h"
|
|
#define LOGZERO log(0.000001)
|
|
#define CACHE_SLOTS 1
|
|
#define UNIQUE_SLOTS 1
|
|
|
|
|
|
typedef struct
|
|
{
|
|
int nVal,nRule;
|
|
int firstBoolVar;
|
|
} variable;
|
|
|
|
|
|
typedef struct
|
|
{
|
|
DdNode *key;
|
|
double value;
|
|
} rowel;
|
|
|
|
typedef struct
|
|
{
|
|
int cnt;
|
|
rowel *row;
|
|
} tablerow;
|
|
|
|
tablerow * table;
|
|
|
|
static variable ** vars_ex;
|
|
static int ** bVar2mVar_ex;
|
|
static double * sigma;
|
|
static double ***eta;
|
|
static double ***eta_temp;
|
|
static double **arrayprob;
|
|
static int *rules;
|
|
static DdManager **mgr_ex;
|
|
static int *nVars_ex;
|
|
static int nRules;
|
|
double * nodes_probs_ex;
|
|
double ** probs_ex;
|
|
static int * boolVars_ex;
|
|
tablerow * nodesB;
|
|
tablerow * nodesF;
|
|
int ex,cycle;
|
|
DdNode *** nodesToVisit;
|
|
int * NnodesToVisit;
|
|
double * example_prob;
|
|
static YAP_Bool ret_prob(void);
|
|
double Prob(DdNode *node,int comp_par);
|
|
static YAP_Bool end_bdd(void);
|
|
static YAP_Bool init_test(void);
|
|
static YAP_Bool add_var(void);
|
|
static YAP_Bool init(void);
|
|
static YAP_Bool end(void);
|
|
static YAP_Bool EM(void);
|
|
static YAP_Bool Q(void);
|
|
double ProbPath(DdNode *node, int comp_par, int nex);
|
|
static YAP_Bool rec_deref(void);
|
|
int indexMvar(DdNode *node);
|
|
void Forward(DdNode *node, int nex);
|
|
void GetForward(DdNode *node, double ForwProbPath);
|
|
void UpdateForward(DdNode * node, int nex);
|
|
double GetOutsideExpe(DdNode *root,double ex_prob, int nex);
|
|
void Maximization(void);
|
|
static double Expectation(DdNode **nodes_ex, int lenNodes);
|
|
void init_my_predicates(void);
|
|
FILE *open_file(char *filename, const char *mode);
|
|
tablerow* init_table(int varcnt);
|
|
double * get_value(tablerow *tab, DdNode *node);
|
|
void add_or_replace_node(tablerow *tab, DdNode *node, double value);
|
|
void add_node(tablerow *tab, DdNode *node, double value);
|
|
void destroy_table(tablerow *tab,int varcnt);
|
|
|
|
static YAP_Bool init(void)
|
|
{
|
|
int j,i;
|
|
YAP_Term arg1,arg2,list;
|
|
|
|
ex=0;
|
|
cycle=0;
|
|
arg1=YAP_ARG1;
|
|
arg2=YAP_ARG2;
|
|
nRules=YAP_IntOfTerm(arg1);
|
|
|
|
vars_ex=NULL;
|
|
nVars_ex=NULL;
|
|
eta= (double ***) malloc(nRules * sizeof(double **));
|
|
eta_temp= (double ***) malloc(nRules * sizeof(double **));
|
|
rules= (int *) malloc(nRules * sizeof(int));
|
|
arrayprob=(double **) malloc(nRules * sizeof(double *));
|
|
probs_ex=NULL;
|
|
bVar2mVar_ex=NULL;
|
|
boolVars_ex=NULL;
|
|
mgr_ex=NULL;
|
|
nodes_probs_ex=NULL;
|
|
list=arg2;
|
|
for (j=0;j<nRules;j++)
|
|
{
|
|
rules[j]=YAP_IntOfTerm(YAP_HeadOfTerm(list));
|
|
list=YAP_TailOfTerm(list);
|
|
eta[j]= (double **) malloc((rules[j]-1)*sizeof(double *));
|
|
eta_temp[j]= (double **) malloc((rules[j]-1)*sizeof(double *));
|
|
arrayprob[j]= (double *) malloc((rules[j]-1)*sizeof(double));
|
|
for (i=0;i<rules[j]-1;i++)
|
|
{
|
|
eta[j][i]=(double *) malloc(2*sizeof(double));
|
|
eta_temp[j][i]=(double *) malloc(2*sizeof(double));
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static YAP_Bool init_bdd(void)
|
|
{
|
|
mgr_ex=(DdManager **) realloc(mgr_ex, (ex+1)* sizeof(DdManager *));
|
|
mgr_ex[ex]=Cudd_Init(0,0,UNIQUE_SLOTS,CACHE_SLOTS,5120);
|
|
Cudd_AutodynEnable(mgr_ex[ex], CUDD_REORDER_GROUP_SIFT);
|
|
Cudd_SetMaxCacheHard(mgr_ex[ex], 0);
|
|
Cudd_SetLooseUpTo(mgr_ex[ex], 0);
|
|
Cudd_SetMinHit(mgr_ex[ex], 15);
|
|
|
|
bVar2mVar_ex=(int **) realloc(bVar2mVar_ex, (ex+1)* sizeof(int *));
|
|
bVar2mVar_ex[ex]=NULL;
|
|
|
|
vars_ex=(variable **) realloc(vars_ex, (ex+1)* sizeof(variable *));
|
|
vars_ex[ex]=NULL;
|
|
|
|
nVars_ex=(int *) realloc(nVars_ex, (ex+1)* sizeof(int ));
|
|
nVars_ex[ex]=0;
|
|
|
|
probs_ex=(double **) realloc(probs_ex, (ex+1)* sizeof(double *));
|
|
probs_ex[ex]=NULL;
|
|
|
|
boolVars_ex=(int *) realloc(boolVars_ex, (ex+1)* sizeof(int ));
|
|
boolVars_ex[ex]=0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
static YAP_Bool end_bdd(void)
|
|
{
|
|
|
|
ex=ex+1;
|
|
return 1;
|
|
}
|
|
|
|
|
|
|
|
static YAP_Bool init_test(void)
|
|
{
|
|
YAP_Term arg1;
|
|
|
|
arg1=YAP_ARG1;
|
|
nRules=YAP_IntOfTerm(arg1);
|
|
|
|
ex=0;
|
|
mgr_ex=(DdManager **) malloc((ex+1)* sizeof(DdManager *));
|
|
mgr_ex[ex]=Cudd_Init(0,0,UNIQUE_SLOTS,CACHE_SLOTS,5120);
|
|
Cudd_AutodynEnable(mgr_ex[ex], CUDD_REORDER_GROUP_SIFT);
|
|
Cudd_SetMaxCacheHard(mgr_ex[ex], 0);
|
|
Cudd_SetLooseUpTo(mgr_ex[ex], 0);
|
|
Cudd_SetMinHit(mgr_ex[ex], 15);
|
|
|
|
bVar2mVar_ex=(int **) malloc((ex+1)* sizeof(int *));
|
|
bVar2mVar_ex[ex]=NULL;
|
|
|
|
vars_ex=(variable **) malloc((ex+1)* sizeof(variable *));
|
|
vars_ex[ex]=NULL;
|
|
|
|
nVars_ex=(int *) malloc((ex+1)* sizeof(int ));
|
|
nVars_ex[ex]=0;
|
|
|
|
probs_ex=(double **) malloc((ex+1)* sizeof(double *));
|
|
probs_ex[ex]=NULL;
|
|
|
|
boolVars_ex=(int *) malloc((ex+1)* sizeof(int ));
|
|
boolVars_ex[ex]=0;
|
|
|
|
rules= (int *) malloc(nRules * sizeof(int));
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
static YAP_Bool end_test(void)
|
|
{
|
|
free(bVar2mVar_ex[ex]);
|
|
free(vars_ex[ex]);
|
|
Cudd_Quit(mgr_ex[ex]);
|
|
free(probs_ex[ex]);
|
|
free(rules);
|
|
free(mgr_ex);
|
|
free(bVar2mVar_ex);
|
|
free(vars_ex);
|
|
free(probs_ex);
|
|
free(nVars_ex);
|
|
free(boolVars_ex);
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
|
|
static double Expectation(DdNode **nodes_ex,int lenNodes)
|
|
{
|
|
int i;
|
|
double rootProb,CLL=0;
|
|
|
|
for(i=0;i<lenNodes;i++)
|
|
{
|
|
if (!Cudd_IsConstant(nodes_ex[i]))
|
|
{
|
|
nodesB=init_table(boolVars_ex[i]);
|
|
nodesF=init_table(boolVars_ex[i]);
|
|
|
|
Forward(nodes_ex[i],i);
|
|
rootProb=GetOutsideExpe(nodes_ex[i],example_prob[i],i);
|
|
|
|
if (rootProb<=0.0)
|
|
CLL = CLL + LOGZERO*example_prob[i];
|
|
else
|
|
CLL = CLL + log(rootProb)*example_prob[i];
|
|
|
|
nodes_probs_ex[i]=rootProb;
|
|
destroy_table(nodesB,boolVars_ex[i]);
|
|
destroy_table(nodesF,boolVars_ex[i]);
|
|
}
|
|
else
|
|
if (nodes_ex[i]==Cudd_ReadLogicZero(mgr_ex[i]))
|
|
{
|
|
CLL=CLL+LOGZERO*example_prob[i];
|
|
nodes_probs_ex[i]=0.0;
|
|
}
|
|
else
|
|
nodes_probs_ex[i]=1.0;
|
|
}
|
|
return CLL;
|
|
}
|
|
|
|
static YAP_Bool end(void)
|
|
{
|
|
int r,i;
|
|
|
|
for (i=0;i<ex;i++)
|
|
{
|
|
Cudd_Quit(mgr_ex[i]);
|
|
free(bVar2mVar_ex[i]);
|
|
free(vars_ex[i]);
|
|
free(probs_ex[i]);
|
|
fflush(stdout);
|
|
}
|
|
|
|
free(mgr_ex);
|
|
free(bVar2mVar_ex);
|
|
free(vars_ex);
|
|
free(probs_ex);
|
|
free(nVars_ex);
|
|
free(boolVars_ex);
|
|
for (r=0;r<nRules;r++)
|
|
{
|
|
for (i=0;i<rules[r]-1;i++)
|
|
{
|
|
free(eta[r][i]);
|
|
free(eta_temp[r][i]);
|
|
}
|
|
free(eta[r]);
|
|
free(eta_temp[r]);
|
|
}
|
|
free(eta);
|
|
free(eta_temp);
|
|
for (r=0;r<nRules;r++)
|
|
{
|
|
free(arrayprob[r]);
|
|
}
|
|
free(arrayprob);
|
|
free(rules);
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
static YAP_Bool ret_prob(void)
|
|
{
|
|
YAP_Term arg1,arg2,out;
|
|
DdNode * node;
|
|
|
|
arg1=YAP_ARG1;
|
|
arg2=YAP_ARG2;
|
|
node=(DdNode *)YAP_IntOfTerm(arg1);
|
|
|
|
if (!Cudd_IsConstant(node))
|
|
{
|
|
table=init_table(boolVars_ex[ex]);
|
|
out=YAP_MkFloatTerm(Prob(node,0));
|
|
destroy_table(table,boolVars_ex[ex]);
|
|
}
|
|
else
|
|
{
|
|
if (node==Cudd_ReadOne(mgr_ex[ex]))
|
|
out=YAP_MkFloatTerm(1.0);
|
|
else
|
|
out=YAP_MkFloatTerm(0.0);
|
|
}
|
|
|
|
return(YAP_Unify(out,arg2));
|
|
}
|
|
|
|
double Prob(DdNode *node,int comp_par)
|
|
/* compute the probability of the expression rooted at node.
|
|
table is used to store nodeB for which the probability has alread been computed
|
|
so that it is not recomputed
|
|
*/
|
|
{
|
|
int index,mVarIndex,comp,pos;
|
|
variable v;
|
|
double res;
|
|
double p,pt,pf,BChild0,BChild1;
|
|
double * value_p;
|
|
DdNode *nodekey,*T,*F;
|
|
|
|
comp=Cudd_IsComplement(node);
|
|
comp=(comp && !comp_par) ||(!comp && comp_par);
|
|
if (Cudd_IsConstant(node))
|
|
{
|
|
if (comp)
|
|
return 0.0;
|
|
else
|
|
return 1.0;
|
|
}
|
|
else
|
|
{
|
|
nodekey=Cudd_Regular(node);
|
|
value_p=get_value(table,nodekey);
|
|
if (value_p!=NULL)
|
|
return *value_p;
|
|
else
|
|
{
|
|
index=Cudd_NodeReadIndex(node); //Returns the index of the node. The node pointer can be either regular or complemented.
|
|
//The index field holds the name of the variable that labels the node. The index of a variable is a permanent attribute that reflects the order of creation.
|
|
p=probs_ex[ex][index];
|
|
T = Cudd_T(node);
|
|
F = Cudd_E(node);
|
|
pf=Prob(F,comp);
|
|
pt=Prob(T,comp);
|
|
BChild0=pf*(1-p);
|
|
BChild1=pt*p;
|
|
mVarIndex=bVar2mVar_ex[ex][index];
|
|
v=vars_ex[ex][mVarIndex];
|
|
pos=index-v.firstBoolVar;
|
|
res=BChild0+BChild1;
|
|
add_node(table,nodekey,res);
|
|
return res;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
static YAP_Bool add_var(void)
|
|
{
|
|
YAP_Term arg1,arg2,arg3,arg4,out,probTerm,probTerm_temp;
|
|
variable * v;
|
|
int i;
|
|
DdNode * node;
|
|
double p,p0;
|
|
|
|
|
|
arg1=YAP_ARG1;
|
|
arg2=YAP_ARG2;
|
|
arg3=YAP_ARG3;
|
|
arg4=YAP_ARG4;
|
|
nVars_ex[ex]=nVars_ex[ex]+1;
|
|
vars_ex[ex]=(variable *) realloc(vars_ex[ex],nVars_ex[ex] * sizeof(variable));
|
|
|
|
v=&vars_ex[ex][nVars_ex[ex]-1];
|
|
v->nVal=YAP_IntOfTerm(arg1);
|
|
v->nRule=YAP_IntOfTerm(arg3);
|
|
v->firstBoolVar=boolVars_ex[ex];
|
|
probs_ex[ex]=(double *) realloc(probs_ex[ex],(((boolVars_ex[ex]+v->nVal-1)* sizeof(double))));
|
|
bVar2mVar_ex[ex]=(int *) realloc(bVar2mVar_ex[ex],((boolVars_ex[ex]+v->nVal-1)* sizeof(int)));
|
|
probTerm=arg2;
|
|
p0=1;
|
|
for (i=0;i<v->nVal-1;i++)
|
|
{
|
|
node=Cudd_bddIthVar(mgr_ex[ex],boolVars_ex[ex]+i);
|
|
p=YAP_FloatOfTerm(YAP_HeadOfTerm(probTerm));
|
|
bVar2mVar_ex[ex][boolVars_ex[ex]+i]=nVars_ex[ex]-1;
|
|
probs_ex[ex][boolVars_ex[ex]+i]=p/p0;
|
|
probTerm_temp=YAP_TailOfTerm(probTerm);
|
|
probTerm=probTerm_temp;
|
|
p0=p0*(1-p/p0);
|
|
}
|
|
boolVars_ex[ex]=boolVars_ex[ex]+v->nVal-1;
|
|
rules[v->nRule]= v->nVal;
|
|
out=YAP_MkIntTerm((YAP_Int) nVars_ex[ex]-1);
|
|
return YAP_Unify(out,arg4);
|
|
}
|
|
|
|
static YAP_Bool equality(void)
|
|
{
|
|
YAP_Term arg1,arg2,arg3,out;
|
|
int varIndex;
|
|
int value;
|
|
int i;
|
|
variable v;
|
|
DdNode * node, * tmp,*var;
|
|
|
|
arg1=YAP_ARG1;
|
|
arg2=YAP_ARG2;
|
|
arg3=YAP_ARG3;
|
|
varIndex=YAP_IntOfTerm(arg1);
|
|
value=YAP_IntOfTerm(arg2);
|
|
v=vars_ex[ex][varIndex];
|
|
i=v.firstBoolVar;
|
|
tmp=Cudd_ReadOne(mgr_ex[ex]);
|
|
Cudd_Ref(tmp);
|
|
node=NULL;
|
|
for (i=v.firstBoolVar;i<v.firstBoolVar+value;i++)
|
|
{
|
|
var=Cudd_bddIthVar(mgr_ex[ex],i);
|
|
node=Cudd_bddAnd(mgr_ex[ex],tmp,Cudd_Not(var));
|
|
Cudd_Ref(node);
|
|
Cudd_RecursiveDeref(mgr_ex[ex],tmp);
|
|
tmp=node;
|
|
}
|
|
if (!(value==v.nVal-1))
|
|
{
|
|
var=Cudd_bddIthVar(mgr_ex[ex],v.firstBoolVar+value);
|
|
node=Cudd_bddAnd(mgr_ex[ex],tmp,var);
|
|
Cudd_Ref(node);
|
|
Cudd_RecursiveDeref(mgr_ex[ex],tmp);
|
|
}
|
|
out=YAP_MkIntTerm((YAP_Int) node);
|
|
return(YAP_Unify(out,arg3));
|
|
}
|
|
|
|
static YAP_Bool one(void)
|
|
{
|
|
YAP_Term arg,out;
|
|
DdNode * node;
|
|
|
|
arg=YAP_ARG1;
|
|
node = Cudd_ReadOne(mgr_ex[ex]);
|
|
Cudd_Ref(node);
|
|
out=YAP_MkIntTerm((YAP_Int) node);
|
|
return(YAP_Unify(out,arg));
|
|
}
|
|
|
|
static YAP_Bool zero(void)
|
|
{
|
|
YAP_Term arg,out;
|
|
DdNode * node;
|
|
|
|
arg=YAP_ARG1;
|
|
node = Cudd_ReadLogicZero(mgr_ex[ex]);
|
|
Cudd_Ref(node);
|
|
out=YAP_MkIntTerm((YAP_Int) node);
|
|
return(YAP_Unify(out,arg));
|
|
}
|
|
|
|
static YAP_Bool bdd_not(void)
|
|
{
|
|
YAP_Term arg1,arg2,out;
|
|
DdNode * node;
|
|
arg1=YAP_ARG1;
|
|
arg2=YAP_ARG2;
|
|
|
|
node = (DdNode *)YAP_IntOfTerm(arg1);
|
|
node=Cudd_Not(node);
|
|
out=YAP_MkIntTerm((YAP_Int) node);
|
|
return(YAP_Unify(out,arg2));
|
|
}
|
|
|
|
static YAP_Bool and(void)
|
|
{
|
|
YAP_Term arg1,arg2,arg3,out;
|
|
DdNode * node1, *node2,*nodeout;
|
|
|
|
arg1=YAP_ARG1;
|
|
arg2=YAP_ARG2;
|
|
arg3=YAP_ARG3;
|
|
node1=(DdNode *)YAP_IntOfTerm(arg1);
|
|
node2=(DdNode *)YAP_IntOfTerm(arg2);
|
|
nodeout=Cudd_bddAnd(mgr_ex[ex],node1,node2);
|
|
Cudd_Ref(nodeout);
|
|
out=YAP_MkIntTerm((YAP_Int) nodeout);
|
|
return(YAP_Unify(out,arg3));
|
|
}
|
|
|
|
static YAP_Bool or(void)
|
|
{
|
|
YAP_Term arg1,arg2,arg3,out;
|
|
DdNode * node1,*node2,*nodeout;
|
|
|
|
arg1=YAP_ARG1;
|
|
arg2=YAP_ARG2;
|
|
arg3=YAP_ARG3;
|
|
node1=(DdNode *)YAP_IntOfTerm(arg1);
|
|
node2=(DdNode *)YAP_IntOfTerm(arg2);
|
|
nodeout=Cudd_bddOr(mgr_ex[ex],node1,node2);
|
|
Cudd_Ref(nodeout);
|
|
out=YAP_MkIntTerm((YAP_Int) nodeout);
|
|
return(YAP_Unify(out,arg3));
|
|
}
|
|
|
|
static YAP_Bool garbage_collect(void)
|
|
{
|
|
YAP_Term arg1,arg2,out;
|
|
YAP_Int nodes,clearCache;
|
|
|
|
arg1=YAP_ARG1;
|
|
arg2=YAP_ARG2;
|
|
clearCache=YAP_IntOfTerm(arg1);
|
|
nodes=(YAP_Int)cuddGarbageCollect(mgr_ex[ex],clearCache);
|
|
out=YAP_MkIntTerm(nodes);
|
|
return(YAP_Unify(out,arg2));
|
|
}
|
|
|
|
static YAP_Bool bdd_to_add(void)
|
|
{
|
|
YAP_Term arg1,arg2,out;
|
|
DdNode * node1,*node2;
|
|
|
|
arg1=YAP_ARG1;
|
|
arg2=YAP_ARG2;
|
|
node1=(DdNode *)YAP_IntOfTerm(arg1);
|
|
node2= Cudd_BddToAdd(mgr_ex[ex],node1);
|
|
out=YAP_MkIntTerm((YAP_Int) node2);
|
|
return(YAP_Unify(out,arg2));
|
|
}
|
|
|
|
static YAP_Bool create_dot(void)
|
|
{
|
|
char * onames[]={"Out"};
|
|
char ** inames;
|
|
DdNode * array[1];
|
|
YAP_Term arg1,arg2;
|
|
int i,b,index;
|
|
variable v;
|
|
char numberVar[10],numberBit[10],filename[1000];
|
|
FILE * file;
|
|
|
|
arg1=YAP_ARG1;
|
|
arg2=YAP_ARG2;
|
|
|
|
YAP_StringToBuffer(arg2,filename,1000);
|
|
inames= (char **) malloc(sizeof(char *)*(boolVars_ex[ex]));
|
|
index=0;
|
|
for (i=0;i<nVars_ex[ex];i++)
|
|
{
|
|
v=vars_ex[ex][i];
|
|
for (b=0;b<v.nVal-1;b++)
|
|
{
|
|
inames[b+index]=(char *) malloc(sizeof(char)*20);
|
|
strcpy(inames[b+index],"X");
|
|
sprintf(numberVar,"%d",i);
|
|
strcat(inames[b+index],numberVar);
|
|
strcat(inames[b+index],"_");
|
|
sprintf(numberBit,"%d",b);
|
|
strcat(inames[b+index],numberBit);
|
|
}
|
|
index=index+v.nVal-1;
|
|
}
|
|
array[0]=(DdNode *)YAP_IntOfTerm(arg1);
|
|
file = open_file(filename, "w");
|
|
Cudd_DumpDot(mgr_ex[ex],1,array,inames,onames,file);
|
|
fclose(file);
|
|
index=0;
|
|
for (i=0;i<nVars_ex[ex];i++)
|
|
{
|
|
v=vars_ex[ex][i];
|
|
for (b=0;b<v.nVal-1;b++)
|
|
{
|
|
free(inames[b+index]);
|
|
}
|
|
index=index+v.nVal-1;
|
|
}
|
|
free(inames);
|
|
return 1;
|
|
}
|
|
|
|
|
|
static YAP_Bool rec_deref(void)
|
|
{
|
|
YAP_Term arg1;
|
|
DdNode * node;
|
|
|
|
arg1=YAP_ARG1;
|
|
node=(DdNode *) YAP_IntOfTerm(arg1);
|
|
Cudd_RecursiveDeref(mgr_ex[ex], node);
|
|
return 1;
|
|
}
|
|
|
|
|
|
|
|
double ProbPath(DdNode *node,int comp_par, int nex)
|
|
{
|
|
int index,mVarIndex,comp,pos,position,boolVarIndex;
|
|
variable v;
|
|
double res;
|
|
double value,p,pt,pf,BChild0,BChild1,e0,e1;
|
|
double * value_p,** eta_rule;
|
|
DdNode *nodekey,*T,*F;
|
|
|
|
comp=Cudd_IsComplement(node);
|
|
comp=(comp && !comp_par) ||(!comp && comp_par);
|
|
if (Cudd_IsConstant(node))
|
|
{
|
|
value=Cudd_V(node);
|
|
if (comp)
|
|
{
|
|
return 0.0;
|
|
}
|
|
else
|
|
{
|
|
return 1.0;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
nodekey=Cudd_Regular(node);
|
|
value_p=get_value(nodesB,nodekey);
|
|
if (value_p!=NULL)
|
|
{
|
|
return *value_p;
|
|
}
|
|
else
|
|
{
|
|
index=Cudd_NodeReadIndex(node);
|
|
p=probs_ex[nex][index];
|
|
T = Cudd_T(node);
|
|
F = Cudd_E(node);
|
|
pf=ProbPath(F,comp,nex);
|
|
pt=ProbPath(T,comp,nex);
|
|
BChild0=pf*(1-p);
|
|
BChild1=pt*p;
|
|
value_p=get_value(nodesF,nodekey);
|
|
e0 = (*value_p)*BChild0;
|
|
e1 = (*value_p)*BChild1;
|
|
mVarIndex=bVar2mVar_ex[nex][index];
|
|
v=vars_ex[nex][mVarIndex];
|
|
pos=index-v.firstBoolVar;
|
|
eta_rule=eta_temp[v.nRule];
|
|
eta_rule[pos][0]=eta_rule[pos][0]+e0;
|
|
eta_rule[pos][1]=eta_rule[pos][1]+e1;
|
|
res=BChild0+BChild1;
|
|
add_node(nodesB,nodekey,res);
|
|
position=Cudd_ReadPerm(mgr_ex[nex],index);
|
|
position=position+1;
|
|
boolVarIndex=Cudd_ReadInvPerm(mgr_ex[nex],position);//Returns the index of the variable currently in the i-th position of the order.
|
|
if (position<boolVars_ex[nex])
|
|
{
|
|
sigma[position]=sigma[position]+e0+e1;
|
|
}
|
|
if(!Cudd_IsConstant(T))
|
|
{
|
|
index=Cudd_NodeReadIndex(T);
|
|
position=Cudd_ReadPerm(mgr_ex[nex],index);
|
|
sigma[position]=sigma[position]-e1;
|
|
}
|
|
|
|
if(!Cudd_IsConstant(F))
|
|
{
|
|
index=Cudd_NodeReadIndex(F);
|
|
position=Cudd_ReadPerm(mgr_ex[nex],index);
|
|
sigma[position]=sigma[position]-e0;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
void Forward(DdNode *root, int nex)
|
|
{
|
|
int i,j;
|
|
|
|
if (boolVars_ex[nex])
|
|
{
|
|
nodesToVisit= (DdNode ***)malloc(sizeof(DdNode **)* boolVars_ex[nex]);
|
|
NnodesToVisit= (int *)malloc(sizeof(int)* boolVars_ex[nex]);
|
|
nodesToVisit[0]=(DdNode **)malloc(sizeof(DdNode *));
|
|
nodesToVisit[0][0]=root;
|
|
NnodesToVisit[0]=1;
|
|
for(i=1;i<boolVars_ex[nex];i++)
|
|
{
|
|
nodesToVisit[i]=NULL;
|
|
NnodesToVisit[i]=0;
|
|
}
|
|
add_node(nodesF,Cudd_Regular(root),1);
|
|
for(i=0;i<boolVars_ex[nex];i++)
|
|
{
|
|
for(j=0;j<NnodesToVisit[i];j++)
|
|
UpdateForward(nodesToVisit[i][j],nex);
|
|
}
|
|
for(i=0;i<boolVars_ex[nex];i++)
|
|
{
|
|
free(nodesToVisit[i]);
|
|
}
|
|
free(nodesToVisit);
|
|
free(NnodesToVisit);
|
|
}
|
|
else
|
|
{
|
|
add_node(nodesF,Cudd_Regular(root),1);
|
|
}
|
|
}
|
|
|
|
void UpdateForward(DdNode *node, int nex)
|
|
{
|
|
int index,position,mVarIndex;
|
|
DdNode *T,*E,*nodereg;
|
|
variable v;
|
|
double *value_p,*value_p_T,*value_p_F,p;
|
|
|
|
if (Cudd_IsConstant(node))
|
|
{
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
index=Cudd_NodeReadIndex(node);
|
|
mVarIndex=bVar2mVar_ex[nex][index];
|
|
v=vars_ex[nex][mVarIndex];
|
|
p=probs_ex[nex][index];
|
|
nodereg=Cudd_Regular(node);
|
|
value_p=get_value(nodesF,nodereg);
|
|
if (value_p== NULL)
|
|
{
|
|
printf("Error\n");
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
T = Cudd_T(node);
|
|
E = Cudd_E(node);
|
|
if (!Cudd_IsConstant(T))
|
|
{
|
|
value_p_T=get_value(nodesF,T);
|
|
if (value_p_T!= NULL)
|
|
{
|
|
*value_p_T= *value_p_T+*value_p*p;
|
|
}
|
|
else
|
|
{
|
|
add_or_replace_node(nodesF,Cudd_Regular(T),*value_p*p);
|
|
index=Cudd_NodeReadIndex(T);
|
|
position=Cudd_ReadPerm(mgr_ex[nex],index);
|
|
nodesToVisit[position]=(DdNode **)realloc(nodesToVisit[position],
|
|
(NnodesToVisit[position]+1)* sizeof(DdNode *));
|
|
nodesToVisit[position][NnodesToVisit[position]]=T;
|
|
NnodesToVisit[position]=NnodesToVisit[position]+1;
|
|
}
|
|
}
|
|
if (!Cudd_IsConstant(E))
|
|
{
|
|
value_p_F=get_value(nodesF,Cudd_Regular(E));
|
|
|
|
if (value_p_F!= NULL)
|
|
{
|
|
*value_p_F= *value_p_F+*value_p*(1-p);
|
|
}
|
|
else
|
|
{
|
|
add_or_replace_node(nodesF,Cudd_Regular(E),*value_p*(1-p));
|
|
index=Cudd_NodeReadIndex(E);
|
|
position=Cudd_ReadPerm(mgr_ex[nex],index);
|
|
nodesToVisit[position]=(DdNode **)realloc(nodesToVisit[position],
|
|
(NnodesToVisit[position]+1)* sizeof(DdNode *));
|
|
nodesToVisit[position][NnodesToVisit[position]]=E;
|
|
NnodesToVisit[position]=NnodesToVisit[position]+1;
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
int indexMvar(DdNode * node)
|
|
{
|
|
int index,mVarIndex;
|
|
|
|
index=Cudd_NodeReadIndex(node);
|
|
mVarIndex=bVar2mVar_ex[ex][index];
|
|
return mVarIndex;
|
|
}
|
|
|
|
|
|
|
|
double GetOutsideExpe(DdNode *root,double ex_prob, int nex)
|
|
{
|
|
int i,j,mVarIndex,bVarIndex;
|
|
double **eta_rule;
|
|
double theta,rootProb, T=0;
|
|
|
|
|
|
sigma=(double *)malloc(boolVars_ex[nex] * sizeof(double));
|
|
|
|
for (j=0; j<boolVars_ex[nex]; j++)
|
|
{
|
|
sigma[j]=0;
|
|
}
|
|
for (j=0; j<nRules; j++)
|
|
{
|
|
for (i=0; i<rules[j]-1; i++)
|
|
{
|
|
eta_temp[j][i][0]=0;
|
|
eta_temp[j][i][1]=0;
|
|
}
|
|
}
|
|
rootProb=ProbPath(root,0,nex);
|
|
if (rootProb>0.0)
|
|
{
|
|
for (j=0; j<boolVars_ex[nex]; j++)
|
|
{
|
|
T += sigma[j];
|
|
bVarIndex=Cudd_ReadInvPerm(mgr_ex[nex],j);
|
|
if (bVarIndex==-1)
|
|
{
|
|
bVarIndex=j;
|
|
}
|
|
|
|
mVarIndex=bVar2mVar_ex[nex][bVarIndex];
|
|
eta_rule=eta_temp[vars_ex[nex][mVarIndex].nRule];
|
|
for (i=0; i<vars_ex[nex][mVarIndex].nVal-1;i++)
|
|
{
|
|
theta=probs_ex[nex][bVarIndex];
|
|
eta_rule[i][0]=eta_rule[i][0]+T*(1-theta);
|
|
eta_rule[i][1]=eta_rule[i][1]+T*theta;
|
|
}
|
|
}
|
|
|
|
for (j=0; j<nRules; j++)
|
|
{
|
|
for (i=0; i<rules[j]-1; i++)
|
|
{
|
|
eta[j][i][0]=eta[j][i][0]+eta_temp[j][i][0]*ex_prob/rootProb;
|
|
eta[j][i][1]=eta[j][i][1]+eta_temp[j][i][1]*ex_prob/rootProb;
|
|
}
|
|
}
|
|
}
|
|
free(sigma);
|
|
return rootProb;
|
|
}
|
|
|
|
|
|
void Maximization(void)
|
|
{
|
|
int r,i,j,e;
|
|
double sum=0;
|
|
double *probs_rule,**eta_rule;
|
|
|
|
for (r=0;r<nRules;r++)
|
|
{
|
|
eta_rule=eta[r];
|
|
for (i=0;i<rules[r]-1;i++)
|
|
{
|
|
sum=(eta_rule[i][0]+eta_rule[i][1]);
|
|
if (sum==0.0)
|
|
{
|
|
arrayprob[r][i]=0;
|
|
}
|
|
else
|
|
arrayprob[r][i]=eta_rule[i][1]/sum;
|
|
}
|
|
}
|
|
|
|
for(e=0;e<ex;e++)
|
|
{
|
|
for (j=0;j<nVars_ex[e];j++)
|
|
{
|
|
r=vars_ex[e][j].nRule;
|
|
probs_rule=arrayprob[r];
|
|
for(i=0;i<rules[r]-1;i++)
|
|
{
|
|
probs_ex[e][vars_ex[e][j].firstBoolVar+i]=probs_rule[i];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static YAP_Bool randomize(void)
|
|
{
|
|
int i,j,e,rule;
|
|
double * theta,p0;
|
|
double pmass,par;
|
|
double **Theta_rules;
|
|
|
|
Theta_rules=(double **)malloc(nRules *sizeof(double *));
|
|
|
|
for (j=0;j<nRules;j++)
|
|
{
|
|
Theta_rules[j]=(double *)malloc(rules[j]*sizeof(double));
|
|
}
|
|
|
|
for (j=0;j<nRules;j++)
|
|
{
|
|
theta=Theta_rules[j];
|
|
pmass=0;
|
|
for (i=0;i<rules[j]-1;i++)
|
|
{
|
|
par=((double)rand())/RAND_MAX*(1-pmass);
|
|
pmass=pmass+par;
|
|
theta[i]=par;
|
|
}
|
|
theta[rules[j]-1]=1-pmass;
|
|
}
|
|
for(e=0;e<ex;e++)
|
|
{
|
|
for (j=0; j<nVars_ex[e]; j++)
|
|
{
|
|
rule=vars_ex[e][j].nRule;
|
|
theta=Theta_rules[rule];
|
|
p0=1;
|
|
for (i=0; i<vars_ex[e][j].nVal-1;i++)
|
|
{
|
|
probs_ex[e][vars_ex[e][j].firstBoolVar+i]=theta[i]/p0;
|
|
p0=p0*(1-theta[i]/p0);
|
|
}
|
|
}
|
|
}
|
|
for (j=0;j<nRules;j++)
|
|
{
|
|
free(Theta_rules[j]);
|
|
}
|
|
free(Theta_rules);
|
|
return 1;
|
|
}
|
|
|
|
static YAP_Bool EM(void)
|
|
{
|
|
YAP_Term arg1,arg2,arg3,arg4,arg5,arg6,arg7,arg8,
|
|
out1,out2,out3,nodesTerm,ruleTerm,tail,pair,compoundTerm;
|
|
DdNode * node1,**nodes_ex;
|
|
int r,lenNodes,i,iter;
|
|
long iter1;
|
|
double CLL0= -2.2*pow(10,10); //-inf
|
|
double CLL1= -1.7*pow(10,8); //+inf
|
|
double p,p0,**eta_rule,ea,er;
|
|
double ratio,diff;
|
|
|
|
arg1=YAP_ARG1;
|
|
arg2=YAP_ARG2;
|
|
arg3=YAP_ARG3;
|
|
arg4=YAP_ARG4;
|
|
arg5=YAP_ARG5;
|
|
arg6=YAP_ARG6;
|
|
arg7=YAP_ARG7;
|
|
arg8=YAP_ARG8;
|
|
|
|
nodesTerm=arg1;
|
|
ea=YAP_FloatOfTerm(arg2);
|
|
er=YAP_FloatOfTerm(arg3);
|
|
lenNodes=YAP_IntOfTerm(arg4);
|
|
iter=YAP_IntOfTerm(arg5);
|
|
|
|
nodes_ex=(DdNode **)malloc(lenNodes*sizeof(DdNode*));
|
|
nodes_probs_ex=(double *)malloc(lenNodes*sizeof(double));
|
|
example_prob=(double *)malloc(lenNodes*sizeof(double));
|
|
|
|
for (i=0;i<lenNodes;i++)
|
|
{
|
|
pair=YAP_HeadOfTerm(nodesTerm);
|
|
node1=(DdNode *)YAP_IntOfTerm(YAP_HeadOfTerm(pair));
|
|
nodes_ex[i]=node1;
|
|
pair=YAP_TailOfTerm(pair);
|
|
example_prob[i]=YAP_FloatOfTerm(YAP_HeadOfTerm(pair));
|
|
nodesTerm=YAP_TailOfTerm(nodesTerm);
|
|
}
|
|
diff=CLL1-CLL0;
|
|
ratio=diff/fabs(CLL0);
|
|
if (iter==-1)
|
|
iter1= 2147000000;
|
|
else iter1=iter;
|
|
|
|
|
|
while ( (diff>ea) && (ratio>er) && (cycle<iter1) )
|
|
{
|
|
cycle++;
|
|
for (r=0;r<nRules;r++)
|
|
{
|
|
for (i=0;i<rules[r]-1;i++)
|
|
{
|
|
eta_rule=eta[r];
|
|
eta_rule[i][0]=0;
|
|
eta_rule[i][1]=0;
|
|
}
|
|
}
|
|
CLL0 = CLL1;
|
|
CLL1 = Expectation(nodes_ex,lenNodes);
|
|
Maximization();
|
|
diff=CLL1-CLL0;
|
|
ratio=diff/fabs(CLL0);
|
|
}
|
|
out2= YAP_TermNil();
|
|
for (r=0; r<nRules; r++)
|
|
{
|
|
tail=YAP_TermNil();
|
|
p0=1;
|
|
for (i=0;i<rules[r]-1;i++)
|
|
{
|
|
p=arrayprob[r][i]*p0;
|
|
tail=YAP_MkPairTerm(YAP_MkFloatTerm(p),tail);
|
|
p0=p0*(1-arrayprob[r][i]);
|
|
}
|
|
tail=YAP_MkPairTerm(YAP_MkFloatTerm(p0),tail);
|
|
ruleTerm=YAP_MkIntTerm(r);
|
|
compoundTerm=YAP_MkPairTerm(ruleTerm,YAP_MkPairTerm(tail,YAP_TermNil()));
|
|
out2=YAP_MkPairTerm(compoundTerm,out2);
|
|
}
|
|
out3= YAP_TermNil();
|
|
for (i=0;i<lenNodes;i++)
|
|
{
|
|
out3=YAP_MkPairTerm(YAP_MkFloatTerm(nodes_probs_ex[i]),out3);
|
|
}
|
|
YAP_Unify(out3,arg8);
|
|
|
|
out1=YAP_MkFloatTerm(CLL1);
|
|
YAP_Unify(out1,arg6);
|
|
free(nodes_ex);
|
|
free(example_prob);
|
|
free(nodes_probs_ex);
|
|
|
|
return (YAP_Unify(out2,arg7));
|
|
}
|
|
|
|
|
|
static YAP_Bool Q(void)
|
|
{
|
|
YAP_Term arg1,arg2,arg3,arg4,out,out1,
|
|
term,nodesTerm,ruleTerm,tail,pair,compoundTerm;
|
|
DdNode * node1,**nodes_ex;
|
|
int r,lenNodes,i;
|
|
double p1,p0,**eta_rule,CLL;
|
|
|
|
arg1=YAP_ARG1;
|
|
arg2=YAP_ARG2;
|
|
arg3=YAP_ARG3;
|
|
arg4=YAP_ARG4;
|
|
|
|
nodesTerm=arg1;
|
|
lenNodes=YAP_IntOfTerm(arg2);
|
|
|
|
nodes_ex=(DdNode **)malloc(lenNodes*sizeof(DdNode*));
|
|
example_prob=(double *)malloc(lenNodes*sizeof(double));
|
|
|
|
for (i=0;i<lenNodes;i++)
|
|
{
|
|
pair=YAP_HeadOfTerm(nodesTerm);
|
|
node1=(DdNode *)YAP_IntOfTerm(YAP_HeadOfTerm(pair));
|
|
nodes_ex[i]=node1;
|
|
pair=YAP_TailOfTerm(pair);
|
|
example_prob[i]=YAP_FloatOfTerm(YAP_HeadOfTerm(pair));
|
|
nodesTerm=YAP_TailOfTerm(nodesTerm);
|
|
}
|
|
|
|
for (r=0;r<nRules;r++)
|
|
{
|
|
for (i=0;i<rules[r]-1;i++)
|
|
{
|
|
eta_rule=eta[r];
|
|
eta_rule[i][0]=0;
|
|
eta_rule[i][1]=0;
|
|
}
|
|
}
|
|
CLL=Expectation(nodes_ex,lenNodes);
|
|
out= YAP_TermNil();
|
|
|
|
for (r=0; r<nRules; r++)
|
|
{
|
|
tail=YAP_TermNil();
|
|
eta_rule=eta[r];
|
|
for (i=0;i<rules[r]-1;i++)
|
|
{
|
|
p0=eta_rule[i][0];
|
|
p1=eta_rule[i][1];
|
|
term=YAP_MkPairTerm(YAP_MkFloatTerm(p0),
|
|
YAP_MkPairTerm(YAP_MkFloatTerm(p1),YAP_TermNil()));
|
|
tail=YAP_MkPairTerm(term,tail);
|
|
}
|
|
|
|
ruleTerm=YAP_MkIntTerm(r);
|
|
compoundTerm=YAP_MkPairTerm(ruleTerm,YAP_MkPairTerm(tail,YAP_TermNil()));
|
|
out=YAP_MkPairTerm(compoundTerm,out);
|
|
}
|
|
|
|
free(nodes_ex);
|
|
free(example_prob);
|
|
|
|
out1=YAP_MkFloatTerm(CLL);
|
|
YAP_Unify(out1,arg4);
|
|
return (YAP_Unify(out,arg3));
|
|
}
|
|
|
|
static YAP_Bool paths_to_non_zero(void)
|
|
{
|
|
double paths;
|
|
YAP_Term arg1,arg2,out;
|
|
DdNode * node;
|
|
|
|
arg1=YAP_ARG1;
|
|
arg2=YAP_ARG2;
|
|
node=(DdNode *)YAP_IntOfTerm(arg1);
|
|
paths=Cudd_CountPathsToNonZero(node);
|
|
out=YAP_MkFloatTerm(paths);
|
|
return(YAP_Unify(out,arg2));
|
|
}
|
|
|
|
static YAP_Bool paths(void)
|
|
{
|
|
double paths;
|
|
YAP_Term arg1,arg2,out;
|
|
DdNode * node;
|
|
|
|
arg1=YAP_ARG1;
|
|
arg2=YAP_ARG2;
|
|
node=(DdNode *)YAP_IntOfTerm(arg1);
|
|
paths=Cudd_CountPath(node);
|
|
out=YAP_MkFloatTerm(paths);
|
|
return(YAP_Unify(out,arg2));
|
|
}
|
|
|
|
static YAP_Bool dag_size(void)
|
|
{
|
|
int size;
|
|
YAP_Term arg1,arg2,out;
|
|
DdNode * node;
|
|
|
|
arg1=YAP_ARG1;
|
|
arg2=YAP_ARG2;
|
|
node=(DdNode *)YAP_IntOfTerm(arg1);
|
|
size=Cudd_DagSize(node);
|
|
out=YAP_MkIntTerm(size);
|
|
return(YAP_Unify(out,arg2));
|
|
}
|
|
|
|
void init_my_predicates()
|
|
/* function required by YAP for intitializing the predicates defined by a C function*/
|
|
{
|
|
srand(10);
|
|
|
|
YAP_UserCPredicate("init",init,2);
|
|
YAP_UserCPredicate("init_bdd",init_bdd,0);
|
|
YAP_UserCPredicate("end",end,0);
|
|
YAP_UserCPredicate("end_bdd",end_bdd,0);
|
|
YAP_UserCPredicate("add_var",add_var,4);
|
|
YAP_UserCPredicate("equality",equality,3);
|
|
YAP_UserCPredicate("and",and,3);
|
|
YAP_UserCPredicate("one",one,1);
|
|
YAP_UserCPredicate("zero",zero,1);
|
|
YAP_UserCPredicate("or",or,3);
|
|
YAP_UserCPredicate("bdd_not",bdd_not,2);
|
|
YAP_UserCPredicate("create_dot",create_dot,2);
|
|
YAP_UserCPredicate("init_test",init_test,1);
|
|
YAP_UserCPredicate("end_test",end_test,0);
|
|
YAP_UserCPredicate("ret_prob",ret_prob,2);
|
|
YAP_UserCPredicate("em",EM,8);
|
|
YAP_UserCPredicate("q",Q,4);
|
|
YAP_UserCPredicate("randomize",randomize,0);
|
|
YAP_UserCPredicate("deref",rec_deref,1);
|
|
YAP_UserCPredicate("garbage_collect",garbage_collect,2);
|
|
YAP_UserCPredicate("bdd_to_add",bdd_to_add,2);
|
|
YAP_UserCPredicate("paths_to_non_zero",paths_to_non_zero,2);
|
|
YAP_UserCPredicate("paths",paths,2);
|
|
YAP_UserCPredicate("dag_size",dag_size,2);
|
|
}
|
|
FILE * open_file(char *filename, const char *mode)
|
|
/* opens a file */
|
|
{
|
|
FILE *fp;
|
|
|
|
if ((fp = fopen(filename, mode)) == NULL)
|
|
{
|
|
perror(filename);
|
|
exit(1);
|
|
}
|
|
return fp;
|
|
}
|
|
|
|
|
|
tablerow* init_table(int varcnt) {
|
|
int i;
|
|
tablerow *tab;
|
|
|
|
tab = (tablerow *) malloc(sizeof(rowel) * varcnt);
|
|
for (i = 0; i < varcnt; i++)
|
|
{
|
|
tab[i].row = NULL;
|
|
tab[i].cnt = 0;
|
|
}
|
|
return tab;
|
|
}
|
|
|
|
|
|
void add_node(tablerow *tab, DdNode *node, double value) {
|
|
int index = Cudd_NodeReadIndex(node);
|
|
|
|
tab[index].row = (rowel *) realloc(tab[index].row,
|
|
(tab[index].cnt + 1) * sizeof(rowel));
|
|
tab[index].row[tab[index].cnt].key = node;
|
|
tab[index].row[tab[index].cnt].value = value;
|
|
tab[index].cnt += 1;
|
|
}
|
|
|
|
void add_or_replace_node(tablerow *tab, DdNode *node, double value)
|
|
{
|
|
int i;
|
|
int index = Cudd_NodeReadIndex(node);
|
|
for(i = 0; i < tab[index].cnt; i++)
|
|
{
|
|
if (tab[index].row[i].key == node)
|
|
{
|
|
tab[index].row[i].value=value;
|
|
return;
|
|
}
|
|
}
|
|
tab[index].row = (rowel *) realloc(tab[index].row,
|
|
(tab[index].cnt + 1) * sizeof(rowel));
|
|
tab[index].row[tab[index].cnt].key = node;
|
|
tab[index].row[tab[index].cnt].value = value;
|
|
tab[index].cnt += 1;
|
|
}
|
|
|
|
double * get_value(tablerow *tab, DdNode *node) {
|
|
int i;
|
|
int index = Cudd_NodeReadIndex(node);
|
|
|
|
for(i = 0; i < tab[index].cnt; i++)
|
|
{
|
|
if (tab[index].row[i].key == node)
|
|
{
|
|
return &tab[index].row[i].value;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
void destroy_table(tablerow *tab,int varcnt)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < varcnt; i++)
|
|
{
|
|
free(tab[i].row);
|
|
}
|
|
free(tab);
|
|
}
|