/******************************************************************************\
* *
* SimpleCUDD library (www.cs.kuleuven.be/~theo/tools/simplecudd.html) *
* SimpleCUDD was developed at Katholieke Universiteit Leuven(www.kuleuven.be) *
* *
* Copyright Katholieke Universiteit Leuven 2008 *
* *
* Author: Theofrastos Mantadelis, Angelika Kimmig, Bernd Gutmann *
* File: ProblogBDD.c *
* *
********************************************************************************
* *
* Artistic License 2.0 *
* *
* Copyright (c) 2000-2006, The Perl Foundation. *
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* document, but changing it is not allowed. *
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\******************************************************************************/
#include "simplecudd.h"
#include "problogmath.h"
#include "pqueue.h"
#include "iqueue.h"
#include <signal.h>
#include <stdarg.h>
#define VERSION "2.0.0"
int all_loaded_for_deterministic_variables(namedvars varmap, int disp);
typedef struct _parameters {
int loadfile;
int savedfile;
int exportfile;
int inputfile;
int debug;
int errorcnt;
int *error;
int method;
int queryid;
int timeout;
double sigmoid_slope;
int online;
int maxbufsize;
char *ppid;
int orderfile;
} parameters;
typedef struct _gradientpair {
double probability;
double gradient;
} gradientpair;
typedef struct _extmanager {
DdManager *manager;
DdNode *t, *f;
hisqueue *his;
namedvars varmap;
} extmanager;
int argtype(const char *arg);
void printhelp(int argc, char **arg);
parameters loadparam(int argc, char **arg);
parameters params;
void handler(int num);
void pidhandler(int num);
void termhandler(int num);
void myexpand(extmanager MyManager, DdNode *Current);
double CalcProbability(extmanager MyManager, DdNode *Current);
double CalcProbabilitySigmoid(extmanager MyManager, DdNode *Current);
gradientpair CalcGradient(extmanager MyManager, DdNode *Current, int TargetVar, char *TargetPattern, int type);
double CalcExpectedCountsUp(extmanager * MyManager, DdNode *Current, char *query_id) ;
double CalcExpectedCountsDown(extmanager * MyManager, DdNode *Current, char *query_id);
double CalcExpectedCounts(extmanager * MyManager, DdNode *Current, char *query_id, int calcdown_needed);
int patterncalculated(char *pattern, extmanager MyManager, int loc);
char * extractpattern(char *thestr);
int main(int argc, char **arg) {
extmanager MyManager;
DdNode *bdd = NULL, **forest = NULL, *bakbdd= NULL;
bddfileheader fileheader;
int i, ivarcnt, code, curbdd;
gradientpair tvalue;
double probability = -1.0;
char *varpattern;
varpattern = NULL;
code = -1;
params = loadparam(argc, arg);
if (params.errorcnt > 0) {
printhelp(argc, arg);
for (i = 0; i < params.errorcnt; i++) {
fprintf(stderr, "Error: not known or error at parameter %s.\n", arg[params.error[i]]);
}
return -1;
}
if (params.online == 0 && params.loadfile == -1) {
printhelp(argc, arg);
fprintf(stderr, "Error: you must specify a loading file.\n");
return -1;
}
if (params.method != 0 && arg[params.method][0] != 'g' && arg[params.method][0] != 'p' && arg[params.method][0] != 'o' && arg[params.method][0] != 'l' && arg[params.method][0] != 'e' && arg[params.method][0] != 'd') {
printhelp(argc, arg);
fprintf(stderr, "Error: you must choose a calculation method beetween [p]robability, [g]radient, [l]ine search, [o]nline, [e]xpected counts, probability with [d]eterministic nodes.\n");
return -1;
}
if (params.method != 0 && (arg[params.method][0] == 'g' || arg[params.method][0] == 'p' || arg[params.method][0] == 'l'|| arg[params.method][0] == 'e'|| arg[params.method][0] == 'd') && params.inputfile == -1) {
printhelp(argc, arg);
fprintf(stderr, "Error: an input file is necessary for probability, gradient, line search calculation or expected counts methods.\n");
return -1;
}
if (params.debug) DEBUGON;
RAPIDLOADON;
SETMAXBUFSIZE(params.maxbufsize);
signal(SIGINT, termhandler);
#ifndef __MINGW32__
if (params.ppid != NULL) {
signal(SIGALRM, pidhandler);
alarm(5);
} else {
signal(SIGALRM, handler);
alarm(params.timeout);
}
#endif
if (params.online) {
MyManager.manager = simpleBDDinit(0);
MyManager.t = HIGH(MyManager.manager);
MyManager.f = LOW(MyManager.manager);
MyManager.varmap = InitNamedVars(1, 0);
bdd = OnlineGenerateBDD(MyManager.manager, &MyManager.varmap);
ivarcnt = GetVarCount(MyManager.manager);
} else {
//fprintf(stderr,"reading file \n");
fileheader = ReadFileHeader(arg[params.loadfile]);
switch(fileheader.filetype) {
case BDDFILE_SCRIPT:
// fprintf(stderr," ..... %i \n",fileheader.varcnt);
MyManager.manager = simpleBDDinit(fileheader.varcnt);
MyManager.t = HIGH(MyManager.manager);
MyManager.f = LOW(MyManager.manager);
MyManager.varmap = InitNamedVars(fileheader.varcnt, fileheader.varstart);
if (fileheader.version > 1) {
forest = FileGenerateBDDForest(MyManager.manager, MyManager.varmap, fileheader);
bdd = forest[0];
bakbdd = bdd;
} else {
forest = NULL;
bdd = FileGenerateBDD(MyManager.manager, MyManager.varmap, fileheader);
bakbdd = bdd;
}
ivarcnt = fileheader.varcnt;
break;
case BDDFILE_NODEDUMP:
MyManager.manager = simpleBDDinit(fileheader.varcnt);
MyManager.t = HIGH(MyManager.manager);
MyManager.f = LOW(MyManager.manager);
MyManager.varmap = InitNamedVars(fileheader.varcnt, fileheader.varstart);
bdd = LoadNodeDump(MyManager.manager, MyManager.varmap, fileheader.inputfile);
ivarcnt = fileheader.varcnt;
break;
default:
fprintf(stderr, "Error: not a valid file format to load.\n");
return -1;
break;
}
// fprintf(stderr,"bdd built\n");
}
alarm(0);
// problem specifics
if (bdd != NULL) {
ivarcnt = RepairVarcnt(&MyManager.varmap);
code = 0;
if (params.inputfile != -1) {
if (LoadVariableData(MyManager.varmap, arg[params.inputfile]) == -1) return -1;
// if (!all_loaded(MyManager.varmap, 1)) return -1;
all_loaded_for_deterministic_variables(MyManager.varmap, 1);
}
// impose a predifined order good for debugging
// can be used with a partial number of variables to impose ordering at beggining of BDD
if (params.orderfile != -1) {
ImposeOrder(MyManager.manager, MyManager.varmap, GetVariableOrder(arg[params.orderfile], MyManager.varmap.varcnt));
}
curbdd = 0;
do {
MyManager.his = InitHistory(ivarcnt);
if (params.method != 0) {
switch(arg[params.method][0]) {
case 'g':
for (i = 0; i < MyManager.varmap.varcnt; i++) {
if (MyManager.varmap.vars[i] != NULL) {
// check whether this is a continues fact
if (MyManager.varmap.dynvalue[i] == NULL) { // nope, regular fact
varpattern = extractpattern(MyManager.varmap.vars[i]);
if ((varpattern == NULL) || (!patterncalculated(varpattern, MyManager, i))) {
tvalue = CalcGradient(MyManager, bdd, i + MyManager.varmap.varstart, varpattern, 0);
probability = tvalue.probability;
if (varpattern == NULL) {
printf("query_gradient(%s,%s,p,%e).\n", arg[params.queryid], MyManager.varmap.vars[i], tvalue.gradient);
} else {
varpattern[strlen(varpattern) - 2] = '\0';
printf("query_gradient(%s,%s,p,%e).\n", arg[params.queryid], varpattern, tvalue.gradient);
}
ReInitHistory(MyManager.his, MyManager.varmap.varcnt);
if (varpattern != NULL) free(varpattern);
}
} else { // it is! let's do the Hybrid Problog Magic
// first for mu
varpattern = extractpattern(MyManager.varmap.vars[i]);
if ((varpattern == NULL) || (!patterncalculated(varpattern, MyManager, i))) {
tvalue = CalcGradient(MyManager, bdd, i + MyManager.varmap.varstart, varpattern, 1);
probability = tvalue.probability;
if (varpattern == NULL) {
printf("query_gradient(%s,%s,mu,%e).\n", arg[params.queryid], MyManager.varmap.vars[i], tvalue.gradient);
} else {
varpattern[strlen(varpattern) - 2] = '\0';
printf("query_gradient(%s,%s,mu,%e).\n", arg[params.queryid], varpattern, tvalue.gradient);
}
}
ReInitHistory(MyManager.his, MyManager.varmap.varcnt);
if (varpattern != NULL) free(varpattern);
// then for sigma
varpattern = extractpattern(MyManager.varmap.vars[i]);
if ((varpattern == NULL) || (!patterncalculated(varpattern, MyManager, i))) {
tvalue = CalcGradient(MyManager, bdd, i + MyManager.varmap.varstart, varpattern, 2);
probability = tvalue.probability;
if (varpattern == NULL) {
printf("query_gradient(%s,%s,sigma,%e).\n", arg[params.queryid], MyManager.varmap.vars[i], tvalue.gradient);
} else {
varpattern[strlen(varpattern) - 2] = '\0';
printf("query_gradient(%s,%s,sigma,%e).\n", arg[params.queryid], varpattern, tvalue.gradient);
}
}
ReInitHistory(MyManager.his, MyManager.varmap.varcnt);
if (varpattern != NULL) free(varpattern);
}
} else {
fprintf(stderr, "Error: no variable name given for parameter.\n");
}
}
if (probability < 0.0) {
// no nodes, so we have to calculate probability ourself
tvalue = CalcGradient(MyManager, bdd, 0 + MyManager.varmap.varstart, NULL, 0);
probability = tvalue.probability;
}
printf("query_probability(%s,%e).\n", arg[params.queryid], probability);
break;
case 'l':
tvalue = CalcGradient(MyManager, bdd, 0 + MyManager.varmap.varstart, NULL, 0);
probability = tvalue.probability;
printf("query_probability(%s,%e).\n", arg[params.queryid], probability);
break;
case 'e':
//fprintf(stderr,"start calc exp count\n");
printf("query_probability(%s,%30.30e).\n", arg[params.queryid],CalcExpectedCounts(&MyManager, bdd,arg[params.queryid],1));
break;
case 'd':
//fprintf(stderr,"start calc exp count\n");
printf("query_probability(%s,%30.30e).\n", arg[params.queryid],CalcExpectedCounts(&MyManager, bdd,arg[params.queryid],0));
break;
case 'p':
printf("query_probability(%s,%e).\n", arg[params.queryid], CalcProbability(MyManager, bdd));
break;
case 'o':
onlinetraverse(MyManager.manager, MyManager.varmap, MyManager.his, bdd);
break;
default:
myexpand(MyManager, bdd);
break;
}
} else {
myexpand(MyManager, bdd);
}
if (forest != NULL) {
curbdd++;
bdd = forest[curbdd];
} else {
bdd = NULL;
}
ReInitHistory(MyManager.his, MyManager.varmap.varcnt);
} while(bdd != NULL);
bdd = bakbdd;
if (params.savedfile > -1) SaveNodeDump(MyManager.manager, MyManager.varmap, bdd, arg[params.savedfile]);
if (params.exportfile > -1) simpleNamedBDDtoDot(MyManager.manager, MyManager.varmap, bdd, arg[params.exportfile]);
free(MyManager.his);
}
if (MyManager.manager != NULL) {
KillBDD(MyManager.manager);
free(MyManager.varmap.dvalue);
free(MyManager.varmap.ivalue);
if (MyManager.varmap.dynvalue != NULL) {
for(i = 0; i < MyManager.varmap.varcnt; i++)
if (MyManager.varmap.dynvalue[i] != NULL) {
free(MyManager.varmap.dynvalue[i]);
}
free(MyManager.varmap.dynvalue);
}
for (i = 0; i < MyManager.varmap.varcnt; i++)
free(MyManager.varmap.vars[i]);
free(MyManager.varmap.vars);
}
if (params.error != NULL) free(params.error);
return code;
}
/* Shell Parameters handling */
int argtype(const char *arg) {
if (strcmp(arg, "-l") == 0 || strcmp(arg, "--load") == 0) return 0;
if (strcmp(arg, "-e") == 0 || strcmp(arg, "--export") == 0) return 2;
if (strcmp(arg, "-m") == 0 || strcmp(arg, "--method") == 0) return 3;
if (strcmp(arg, "-i") == 0 || strcmp(arg, "--input") == 0) return 4;
if (strcmp(arg, "-h") == 0 || strcmp(arg, "--help") == 0) return 5;
if (strcmp(arg, "-d") == 0 || strcmp(arg, "--debug") == 0) return 6;
if (strcmp(arg, "-id") == 0 || strcmp(arg, "--queryid") == 0) return 7;
if (strcmp(arg, "-t") == 0 || strcmp(arg, "--timeout") == 0) return 8;
if (strcmp(arg, "-sd") == 0 || strcmp(arg, "--savedump") == 0) return 9;
if (strcmp(arg, "-sl") == 0 || strcmp(arg, "--slope") == 0) return 10;
if (strcmp(arg, "-o") == 0 || strcmp(arg, "--online") == 0) return 11;
if (strcmp(arg, "-bs") == 0 || strcmp(arg, "--bufsize") == 0) return 12;
if (strcmp(arg, "-pid") == 0 || strcmp(arg, "--pid") == 0) return 13;
if (strcmp(arg, "-ord") == 0 || strcmp(arg, "--order") == 0) return 14;
return -1;
}
void printhelp(int argc, char **arg) {
fprintf(stderr, "\n\nProbLogBDD Tool Version: %s\n\n", VERSION);
fprintf(stderr, "SimpleCUDD library (www.cs.kuleuven.be/~theo/tools/simplecudd.html)\n");
fprintf(stderr, "SimpleCUDD was developed at Katholieke Universiteit Leuven(www.kuleuven.be)\n");
fprintf(stderr, "Copyright Katholieke Universiteit Leuven 2008\n");
fprintf(stderr, "Authors: Theofrastos Mantadelis, Angelika Kimmig, Bernd Gutmann\n");
fprintf(stderr, "This package falls under the: Artistic License 2.0\n");
fprintf(stderr, "\nUsage: %s -l [filename] -i [filename] -o (-s(d) [filename] -e [filename] -m [method] -id [queryid] -sl [double]) (-t [seconds] -d -h)\n", arg[0]);
fprintf(stderr, "Generates and traverses a BDD\nMandatory parameters:\n");
fprintf(stderr, "\t-l [filename]\t->\tfilename to load supports two formats:\n\t\t\t\t\t\t1. script with generation instructions\n\t\t\t\t\t\t2. node dump saved file\n");
fprintf(stderr, "\t-i [filename]\t->\tfilename to input problem specifics (mandatory with file formats 1, 2)\n");
fprintf(stderr, "\t-o\t\t->\tgenerates the BDD in online mode instead from a file can be used instead of -l\n");
fprintf(stderr, "Optional parameters:\n");
fprintf(stderr, "\t-sd [filename]\t->\tfilename to save generated BDD in node dump format (fast loading, traverse valid only)\n");
fprintf(stderr, "\t-e [filename]\t->\tfilename to export generated BDD in dot format\n");
fprintf(stderr, "\t-m [method]\t->\tthe calculation method to be used: none(default), [p]robability, [g]radient, [l]ine search, [o]nline, [e]xpexted counts, prob. with [d]eterministic nodes\n");
fprintf(stderr, "\t-id [queryid]\t->\tthe queries identity name (used by gradient) default: %s\n", arg[0]);
fprintf(stderr, "\t-sl [double]\t->\tthe sigmoid slope (used by gradient) default: 1.0\n");
fprintf(stderr, "Extra parameters:\n");
fprintf(stderr, "\t-t [seconds]\t->\tthe seconds (int) for BDD generation timeout default 0 = no timeout\n");
fprintf(stderr, "\t-pid [pid]\t->\ta process id (int) to check for termination default 0 = no process to check\n");
fprintf(stderr, "\t-bs [bytes]\t->\tthe bytes (int) to use as a maximum buffer size to read files default 0 = no max\n");
fprintf(stderr, "\t-ord [filename]\t->\tUse the [filename] to define a specific BDD variable order\n");
fprintf(stderr, "\t-d\t\t->\tRun in debug mode (gives extra messages in stderr)\n");
fprintf(stderr, "\t-h\t\t->\tHelp (displays this message)\n");
fprintf(stderr, "Extra notes:\nSupports a forest of BDDs in one shared BDD.\nSelected computational methods will be applied to each BDD seperately.\nFile operations will be applied only to the first BDD.\n");
fprintf(stderr, "\nExample: %s -l testbdd -i input.txt -m g -id testbdd\n", arg[0]);
}
parameters loadparam(int argc, char **arg) {
int i;
parameters params;
params.loadfile = -1;
params.savedfile = -1;
params.exportfile = -1;
params.method = 0;
params.inputfile = -1;
params.debug = 0;
params.errorcnt = 0;
params.queryid = 0;
params.timeout = 0;
params.sigmoid_slope = 1.0;
params.online = 0;
params.maxbufsize = 0;
params.ppid = NULL;
params.orderfile = -1;
params.error = (int *) malloc(argc * sizeof(int));
for (i = 1; i < argc; i++) {
switch(argtype(arg[i])) {
case 0:
if (argc > i + 1) {
i++;
params.loadfile = i;
} else {
params.error[params.errorcnt] = i;
params.errorcnt++;
}
break;
case 2:
if (argc > i + 1) {
i++;
params.exportfile = i;
} else {
params.error[params.errorcnt] = i;
params.errorcnt++;
}
break;
case 3:
if (argc > i + 1) {
i++;
params.method = i;
} else {
params.error[params.errorcnt] = i;
params.errorcnt++;
}
break;
case 4:
if (argc > i + 1) {
i++;
params.inputfile = i;
} else {
params.error[params.errorcnt] = i;
params.errorcnt++;
}
break;
case 5:
printhelp(argc, arg);
break;
case 6:
params.debug = 1;
break;
case 7:
if (argc > i + 1) {
i++;
params.queryid = i;
} else {
params.error[params.errorcnt] = i;
params.errorcnt++;
}
break;
case 8:
if ((argc > i + 1) && (IsPosNumber(arg[i + 1]))) {
i++;
params.timeout = atoi(arg[i]);
} else {
params.error[params.errorcnt] = i;
params.errorcnt++;
}
break;
case 9:
if (argc > i + 1) {
i++;
params.savedfile = i;
} else {
params.error[params.errorcnt] = i;
params.errorcnt++;
}
break;
case 10:
if ((argc > i + 1) && (IsRealNumber(arg[i + 1]))) {
i++;
params.sigmoid_slope = atof(arg[i]);
} else {
params.error[params.errorcnt] = i;
params.errorcnt++;
}
break;
case 11:
params.online = 1;
break;
case 12:
if ((argc > i + 1) && (IsPosNumber(arg[i + 1]))) {
i++;
params.maxbufsize = atoi(arg[i]);
} else {
params.error[params.errorcnt] = i;
params.errorcnt++;
}
break;
case 13:
if ((argc > i + 1) && (IsPosNumber(arg[i + 1]))) {
i++;
params.ppid = (char *) malloc(sizeof(char) * (strlen(arg[i]) + 1));
strcpy(params.ppid, arg[i]);
} else {
params.error[params.errorcnt] = i;
params.errorcnt++;
}
break;
case 14:
if (argc > i + 1) {
i++;
params.orderfile = i;
} else {
params.error[params.errorcnt] = i;
params.errorcnt++;
}
break;
default:
params.error[params.errorcnt] = i;
params.errorcnt++;
break;
}
}
return params;
}
/* Error Handlers */
void handler(int num) {
fprintf(stderr, "Error: Timeout %i exceeded.\n", params.timeout);
exit(-1);
}
void pidhandler(int num) {
char *s;
if (params.timeout > 0) {
params.timeout -= 5;
if (params.timeout <= 0) {
fprintf(stderr, "Error: Timeout exceeded.\n");
exit(-1);
}
}
s = (char *) malloc(sizeof(char) * (19 + strlen(params.ppid)));
strcpy(s, "ps "); strcat(s, params.ppid); strcat(s, " >/dev/null");
if (system(s) != 0) exit(4);
#ifndef __MINGW32__
signal(SIGALRM, pidhandler);
#endif
alarm(5);
free(s);
}
void termhandler(int num) {
exit(3);
}
/* Debugging traverse function */
void myexpand(extmanager MyManager, DdNode *Current) {
DdNode *h, *l;
hisnode *Found;
char *curnode;
curnode = GetNodeVarNameDisp(MyManager.manager, MyManager.varmap, Current);
printf("%s\n", curnode);
if ((Current != MyManager.t) && (Current != MyManager.f) &&
((Found = GetNode(MyManager.his, MyManager.varmap.varstart, Current)) == NULL)) {
l = LowNodeOf(MyManager.manager, Current);
h = HighNodeOf(MyManager.manager, Current);
printf("l(%s)->", curnode);
myexpand(MyManager, l);
printf("h(%s)->", curnode);
myexpand(MyManager, h);
AddNode(MyManager.his, MyManager.varmap.varstart, Current, 0.0, 0, NULL);
}
}
/* Angelika's Algorithm */
double CalcProbability(extmanager MyManager, DdNode *Current) {
DdNode *h, *l;
hisnode *Found = NULL;
char *curnode; //, *dynvalue;
double lvalue, hvalue, tvalue;
// density_integral dynvalue_parsed;
if (params.debug) {
curnode = GetNodeVarNameDisp(MyManager.manager, MyManager.varmap, Current);
fprintf(stderr, "%s\n", curnode);
} else {
// gcc stupidly complains.
curnode = NULL;
}
if (Current == MyManager.t) return 1.0;
if (Current == MyManager.f) return 0.0;
if ((Found = GetNode(MyManager.his, MyManager.varmap.varstart, Current)) != NULL) return Found->dvalue;
l = LowNodeOf(MyManager.manager, Current);
h = HighNodeOf(MyManager.manager, Current);
if (params.debug) fprintf(stderr, "l(%s)->", curnode);
lvalue = CalcProbability(MyManager, l);
if (params.debug) fprintf(stderr, "h(%s)->", curnode);
hvalue = CalcProbability(MyManager, h);
tvalue = MyManager.varmap.dvalue[GetIndex(Current) - MyManager.varmap.varstart];
tvalue = tvalue * hvalue + lvalue * (1.0 - tvalue);
AddNode(MyManager.his, MyManager.varmap.varstart, Current, tvalue, 0, NULL);
return tvalue;
}
double CalcExpectedCounts(extmanager * MyManager, DdNode *Current, char *query_id, int calcdown_needed) {
// fprintf(stderr,"%%calcing up\n");
double ret = CalcExpectedCountsUp(MyManager, Current, query_id);
// fprintf(stderr,"%%result is %e\n",ret);
// fprintf(stderr,"%%calcing down\n");
if (calcdown_needed != 0) {
// double retd=CalcExpectedCountsDown(MyManager,Current, query_id);
}
/* if(1 != retd){ */
/* fprintf(stderr,"down %e != up %e/%e\n",ret,retd,ret); */
/* exit(1); */
/* } */
return ret;
}
/* ComparisonFunction compare_nodes ( extmanager MyManager) */
/* { */
/* //fprintf(stderr,"creating comparator for %p\n",MyManager); */
/* int comparator(void *av, void *bv){ */
/* fprintf(stderr,"========================> %p \n",MyManager); */
/* fprintf(stderr,"xxxxx \n"); */
/* DdNode* a = (DdNode*)av; */
/* DdNode* b = (DdNode*)bv; */
/* extmanager MyManager; */
/* int aindex,bindex, aperm, bperm; */
/* aindex=GetIndex(a); */
/* bindex=GetIndex(b); */
/* aperm=Cudd_IsConstant(a) ? CUDD_CONST_INDEX : Cudd_ReadPerm(MyManager.manager,aindex); */
/* Cudd_ReadPerm(MyManager.manager,bindex); */
/* bperm=Cudd_IsConstant(b) ? CUDD_CONST_INDEX : Cudd_ReadPerm(MyManager.manager,bindex); */
/* int temp = aperm-bperm; */
/* //-Cudd_ReadPerm(MyManager.manager,(*b).index);//-Cudd_ReadPerm(MyManager,b);// - Cudd_ReadPerm(b); */
/* //fprintf(stderr,"comparing3 %p %p %p\n",a,b,MyManager); */
/* // return -1; */
/* if (temp < 0) */
/* return 1; */
/* else if (temp > 0) */
/* return -1; */
/* // else //never return zero otherwise one is pruned away, or(?) */
/* // return 0; */
/* } */
/* // return (a<b) ? 1 : -1; */
/* return *comparator; */
/* } */
#define NODE_VALUE 1001
#define LOG_EXPECTED 0
static
void PrintNodeQueue(Queue q , extmanager MyManager){
QueueIterator qiter = QueueIteratorNew(q, 1);
fprintf(stderr,"Queue %p is [", q);
while (qiter->currentItem != NULL) {
DdNode* val = (DdNode*) qiter->currentItem->element;
QueueIteratorAdvance(qiter);
fprintf(stderr," %s %s", GetNodeVarNameDisp(MyManager.manager, MyManager.varmap, val),
(qiter->currentItem !=NULL)?",":"]\n");
}
}
/** also nesting in CalcExpected seems to not work (must be here nested only valid within function frame)*/
/* will be changed at later stage */
static extmanager * ineedtostorethatsomehow;
static
int comparator(void *av, void *bv){
int ret = 0;
DdNode* a = (DdNode*)av;
DdNode* b = (DdNode*)bv;
int aindex,bindex, aperm, bperm;
aindex=GetIndex(a);
bindex=GetIndex(b);
aperm=Cudd_IsConstant(a) ? CUDD_CONST_INDEX : Cudd_ReadPerm(ineedtostorethatsomehow->manager,aindex);
Cudd_ReadPerm(ineedtostorethatsomehow->manager,bindex);
bperm=Cudd_IsConstant(b) ? CUDD_CONST_INDEX : Cudd_ReadPerm(ineedtostorethatsomehow->manager,bindex);
int temp = -aperm+bperm;
if (temp < 0)
ret= 1;
else if (temp > 0)
ret= -1;
// else //never return zero otherwise one is pruned away, or(?)
// return 0;
if(LOG_EXPECTED){
fprintf(stderr,"perm(%s,%i)=%i perm(%s,%i)=%i => %i\n",GetNodeVarNameDisp(ineedtostorethatsomehow->manager, ineedtostorethatsomehow->varmap, a),
aindex,
aperm,
GetNodeVarNameDisp(ineedtostorethatsomehow->manager, ineedtostorethatsomehow->varmap, b),
bindex,bperm,
ret);}
return ret;
}
static void
skip_nodes_cnt(extmanager * MyManager, double (*counts)[] , int skipcnt, DdNode* l,double dprob, char *query_id);
/** output information for skipped nodes **/
static void
skip_nodes(extmanager * MyManager, double (*counts)[] , DdNode* node, DdNode* l,double dprob, char *query_id){
int skipcnt;
skipcnt = Cudd_ReadPerm(MyManager->manager,GetIndex(node))+1;
if(LOG_EXPECTED){fprintf(stderr,">> skipper >> %s=%i@%i of %i -> %i@%i %i\n",
(char *)(MyManager->varmap.dynvalue[GetIndex(node) - MyManager->varmap.varstart]),
GetIndex(node),
Cudd_ReadPerm(MyManager->manager,GetIndex(node)),
Cudd_ReadSize( MyManager->manager),
GetIndex(l),
Cudd_ReadPerm(MyManager->manager,GetIndex(l)),
Cudd_IsConstant(l)
);
}
skip_nodes_cnt( MyManager, counts, skipcnt, l, dprob, query_id);
}
static void
skip_nodes_cnt(extmanager * MyManager, double (*counts)[] , int skipcnt, DdNode* l,double dprob, char *query_id){
if(LOG_EXPECTED) fprintf(stderr,"====================\n");
double p;
int ivalue;
// fprintf(stderr, " skip (:%i) \n",__LINE__);
while(Cudd_IsConstant(l) ?
skipcnt < Cudd_ReadSize( MyManager->manager) // the terminals/leafs/constants will be ignored
:
skipcnt < Cudd_ReadPerm(MyManager->manager,GetIndex(l) )
){
skipcnt++;
if(LOG_EXPECTED){ fprintf(stderr,"skipcnt %i\n",skipcnt-1);}
int idx=Cudd_ReadInvPerm(MyManager->manager,skipcnt-1);
if(LOG_EXPECTED){fprintf(stderr,"index %i %i\n",idx,MyManager->varmap.varstart);}
//fprintf(stdout,"%i %s.\n",skipcnt,MyManager->varmap.dynvalue[GetIndex(node) - MyManager->varmap.varstart]);
if(LOG_EXPECTED){fprintf(stderr,"Node skipped level %i index: %i name: %s (dprob is %e)\n",
skipcnt,idx,
MyManager->varmap.vars[idx - MyManager->varmap.varstart],
dprob);}
//notiz
ivalue = MyManager->varmap.ivalue[idx - MyManager->varmap.varstart];
//+ new{
//double tvalue; // probability of prob fact corresp to node
//tvalue = MyManager->varmap.dvalue[idx - MyManager->varmap.varstart];
//}
if(ivalue==1){
p=dprob*MyManager->varmap.dvalue[idx - MyManager->varmap.varstart];
//+ new{
//p=dprob*MyManager->varmap.dvalue[idx - MyManager->varmap.varstart] *tvalue;
//}
if(p>0){// probability is zero, don't follow this branch
(*counts)[idx - MyManager->varmap.varstart]+=p;
// fprintf(stdout,"oec(%s,%s,%e). %%2\n",query_id,MyManager->varmap.vars[idx - MyManager->varmap.varstart],p);
if(LOG_EXPECTED) fprintf(stderr,"ec -> %s,%s,%e . %%2_1\n",query_id,MyManager->varmap.vars[idx - MyManager->varmap.varstart],p);
}else{
if(LOG_EXPECTED){fprintf(stdout,"%% ec(%s,%s,%30.30e). %%2_2\n",query_id,MyManager->varmap.vars[idx - MyManager->varmap.varstart],p);}
}
}
}
// fprintf(stderr, " skip %i \n",__LINE__);
if(LOG_EXPECTED){fprintf(stderr,"skipped\n");}
}
double CalcExpectedCountsDown(extmanager * MyManager, DdNode *Current, char *query_id) {
ineedtostorethatsomehow=MyManager;
Queue q = QueueNew();
//fprintf(stderr", =====> queue is: %p \n",q);
int i;
char *curnode, *curh, *curl,*dynvalue;
DdNode *h, *l, *node;
ComparisonFunction fun;
hisnode *Found = NULL,*lfound, *hfound;
double dprob; //downward probability of current node
double tvalue; // probability of prob fact corresp to node
int ivalue;
double retval; //last value of true
double counts[MyManager->varmap.varcnt] ;
double (*pcnt)[MyManager->varmap.varcnt];
pcnt = &counts;
for( i = 0 ;i< MyManager->varmap.varcnt ; i++){
(*pcnt)[i]=0;
}
// skip everything before the first node:
skip_nodes_cnt(MyManager,pcnt,0,Current,1,query_id);
fun = *comparator;
if(LOG_EXPECTED){fprintf(stderr," ##############################\n");}
if(LOG_EXPECTED){ fprintf(stderr," ##############################\n fun is %p\n",fun);}
if(!Cudd_IsConstant(Current)){
QueuePutOnPriority(q, Current, NODE_VALUE,fun);
Found = GetNode(MyManager->his, MyManager->varmap.varstart, Current);
(*Found).dvalue2=1.0/((*Found).dvalue);
dynvalue = (*Found).dynvalue;
}
Current= NULL; // not used anymore or should not be
retval=0;
while(QueueSize(q)>0){
if(LOG_EXPECTED){fprintf(stderr,"\n");}
if(LOG_EXPECTED){PrintNodeQueue(q,*MyManager);}
node=QueueGet(q);
curnode = GetNodeVarNameDisp(MyManager->manager, MyManager->varmap, node);
// int level = Cudd_ReadPerm(MyManager->manager,GetIndex(node));
if(!Cudd_IsConstant(node)){
tvalue = MyManager->varmap.dvalue[GetIndex(node) - MyManager->varmap.varstart];
ivalue = MyManager->varmap.ivalue[GetIndex(node) - MyManager->varmap.varstart];
dynvalue = MyManager->varmap.vars[GetIndex(node) - MyManager->varmap.varstart];
Found = GetNode(MyManager->his, MyManager->varmap.varstart, node);
dprob=(*Found).dvalue2;
l = LowNodeOf(MyManager->manager, node);
h = HighNodeOf(MyManager->manager, node);
lfound = GetNode(MyManager->his, MyManager->varmap.varstart, l);
hfound = GetNode(MyManager->his, MyManager->varmap.varstart, h) ;
curh = GetNodeVarNameDisp(MyManager->manager, MyManager->varmap, h);
curl = GetNodeVarNameDisp(MyManager->manager, MyManager->varmap, l);
if(LOG_EXPECTED){fprintf(stderr, "%s (%i)--> %s %s\n", curnode,(*node).index,curh,curl);}
/** low node */
if((*lfound).dvalue2<-0.1){ //only if not seen before == dvalue2=0 (almost) otherwise requing does not harm
if(LOG_EXPECTED){fprintf(stderr,"queueing l(%s)=%s \n",curnode,curl);}
QueuePutOnPriority(q, l, NODE_VALUE,fun);
(*lfound).dvalue2=0;
}
((*lfound).dvalue2)=((*lfound).dvalue2)+(ivalue==0? dprob : dprob*(1-tvalue));
if(LOG_EXPECTED){fprintf(stderr, "l(%s)=%s %e \n", curnode,curl,(*lfound).dvalue2);}
if(LOG_EXPECTED){fprintf(stderr, "l(%s)=%s %e %e %e\n", curnode,curl,(*lfound).dvalue2,tvalue,dprob);}
/** high node */
if((*hfound).dvalue2<-0.1){ //only if not seen before == dvalue2=0 (almost) otherwise requing does not harm
fun = *comparator;
(*fun)(l,l);
if(LOG_EXPECTED){
PrintNodeQueue(q,*MyManager);
fprintf(stderr,"-> %p\n",h);
}
QueuePutOnPriority(q, h, NODE_VALUE,fun);
(*hfound).dvalue2=0;
}
(*hfound).dvalue2=(*hfound).dvalue2+(ivalue==0? dprob : (dprob*(tvalue)));
if(LOG_EXPECTED){fprintf(stderr, "h(%s)=%s %e %e %e\n", curnode,curh,(*hfound).dvalue2,tvalue,dprob);}
/** output expected counts current node */
if(ivalue==1){
(*pcnt)[GetIndex(node) - MyManager->varmap.varstart]+=dprob * tvalue * (*hfound).dvalue;
//fprintf(stdout,"oec(%s,%s,%e). %% 1_1\n",query_id,dynvalue,dprob * tvalue * (*hfound).dvalue);
if(LOG_EXPECTED) fprintf(stderr,"ec -> %s,%s,%e . %% 1_1\n",query_id,dynvalue,dprob * tvalue * (*hfound).dvalue);
}else{
(*pcnt)[GetIndex(node) - MyManager->varmap.varstart]+=dprob * tvalue * (*hfound).dvalue;
if(LOG_EXPECTED) fprintf(stderr,"ec -> %s,%s,%e . %% 1_2\n",query_id,dynvalue,dprob * tvalue * (*hfound).dvalue);
}
/** output expected counts of skipped nodes for low branch*/
skip_nodes(MyManager,pcnt,node,l,dprob*((ivalue==0)?1:(1-tvalue))*(*lfound).dvalue,query_id);
skip_nodes(MyManager,pcnt,node,h,dprob*((ivalue==0)?1:(tvalue))*(*hfound).dvalue,query_id);
}else{
if(LOG_EXPECTED){fprintf(stderr,"here: retval %s %e=>%e\n",curnode,retval,(*Found).dvalue2);}
if(node==(MyManager->t)){
if(LOG_EXPECTED){fprintf(stderr,"updating retval %e=>%e\n",retval,(*Found).dvalue2);}
retval=(*Found).dvalue2;
}
}
}
for( i = 0 ;i< MyManager->varmap.varcnt ; i++){
ivalue = MyManager->varmap.ivalue[i];
/* fprintf(stderr,"Node level %i index: %i name: %s (dprob is %e)\n", */
/* i,idx, */
/* MyManager->varmap.vars[idx - MyManager->varmap.varstart], */
/* dprob); */
//fprintf(stderr,"Node idx: %i level: %i \n",i,Cudd_ReadPerm(MyManager->manager,i));
if(ivalue==0){
fprintf(stdout,"%% det: ec(%s,%s,%30.30e).\n",query_id,MyManager->varmap.vars[i],(counts)[i]);
}else{
fprintf(stdout,"ec(%s,%s,%30.30e).\n",query_id,MyManager->varmap.vars[i],(counts)[i]);
}
}
// free(counts);
if(LOG_EXPECTED){
fprintf(stderr,"retval is %e\n",retval);
}
return retval;
}
double CalcExpectedCountsUp(extmanager * MyManager, DdNode *Current, char *query_id) {
// fprintf(stderr,"--------------------- the manager 2 %p \n",&MyManager);
DdNode *h, *l;
hisnode *Found;
char *curnode = NULL;
double lvalue, hvalue, tvalue;
// tvalue=0.0;
int ivalue;
if (params.debug) {
curnode = GetNodeVarNameDisp(MyManager->manager, MyManager->varmap, Current);
fprintf(stderr, "%s\n", curnode);
}
if (Current == MyManager->t){
// if ((Found = GetNode(MyManager->his, MyManager->varmap.varstart, Current)) == NULL) {
// fprintf(stderr,"adding true \n");
AddNode(MyManager->his, MyManager->varmap.varstart, MyManager->t, 1, 0, NULL);//}//needed in down
return 1.0;
}
if (Current == MyManager->f){
// fprintf(stderr,"adding false \n");
// if ((Found = GetNode(MyManager->his, MyManager->varmap.varstart, Current)) == NULL) {
AddNode(MyManager->his, MyManager->varmap.varstart, MyManager->f, 0, 0, NULL);//}//needed in down
return 0.0;
}
if ((Found = GetNode(MyManager->his, MyManager->varmap.varstart, Current)) != NULL) return Found->dvalue;
l = LowNodeOf(MyManager->manager, Current);
h = HighNodeOf(MyManager->manager, Current);
if (params.debug) fprintf(stderr, "l(%s)->", curnode);
lvalue = CalcExpectedCountsUp(MyManager, l,query_id);
if (params.debug) fprintf(stderr, "h(%s)->", curnode);
hvalue = CalcExpectedCountsUp(MyManager, h,query_id);
tvalue = MyManager->varmap.dvalue[GetIndex(Current) - MyManager->varmap.varstart];
//notiz
ivalue = MyManager->varmap.ivalue[GetIndex(Current) - MyManager->varmap.varstart];
if(ivalue == 1){
tvalue = tvalue * hvalue + lvalue * (1.0 - tvalue);
}else if (ivalue == 0){
tvalue = hvalue + lvalue ;
}
// fprintf(stderr," ---> %e \n",tvalue);
AddNode(MyManager->his, MyManager->varmap.varstart, Current, tvalue, 0, NULL);
return tvalue;
}
/* Bernds Algorithm */
// type=0 regular probabilistic fact
// type=1 derive gradient for mu
// type=2 derive gradient for sigma
gradientpair CalcGradient(extmanager MyManager, DdNode *Current, int TargetVar, char *TargetPattern, int type) {
DdNode *h, *l;
hisnode *Found;
char *curnode = NULL, *dynvalue;
gradientpair lowvalue, highvalue, tvalue;
double this_probability;
double *gradient;
density_integral dynvalue_parsed;
if (params.debug) {
curnode = GetNodeVarNameDisp(MyManager.manager, MyManager.varmap, Current);
fprintf(stderr, "%s\n", curnode);
}
// base cases
if (Current == MyManager.t) {
tvalue.probability = 1.0;
tvalue.gradient = 0.0;
return tvalue;
}
if (Current == MyManager.f) {
tvalue.probability = 0.0;
tvalue.gradient = 0.0;
return tvalue;
}
//node is in cache
if ((Found = GetNode(MyManager.his, MyManager.varmap.varstart, Current)) != NULL) {
tvalue.probability = Found->dvalue;
tvalue.gradient = *((double *) Found->dynvalue);
return tvalue;
}
//inductive case
l = LowNodeOf(MyManager.manager, Current);
h = HighNodeOf(MyManager.manager, Current);
if (params.debug) fprintf(stderr, "l(%s)->", curnode);
lowvalue = CalcGradient(MyManager, l, TargetVar, TargetPattern,type);
if (params.debug) fprintf(stderr, "h(%s)->", curnode);
highvalue = CalcGradient(MyManager, h, TargetVar, TargetPattern,type);
dynvalue = (char*) MyManager.varmap.dynvalue[GetIndex(Current) - MyManager.varmap.varstart];
if (dynvalue == NULL) { // no dynvalue, it's a regular probabilistic fact
memset( &dynvalue_parsed, 0, sizeof(dynvalue_parsed) );
this_probability = sigmoid(MyManager.varmap.dvalue[GetIndex(Current) - MyManager.varmap.varstart], params.sigmoid_slope);
} else { // there is a dynvalue, it's a continuous fact! let's do the hybrid ProbLog magic here
curnode = GetNodeVarNameDisp(MyManager.manager, MyManager.varmap, Current);
dynvalue_parsed = parse_density_integral_string(dynvalue, curnode);
this_probability=cumulative_normal(dynvalue_parsed.low,dynvalue_parsed.high,dynvalue_parsed.mu,dynvalue_parsed.sigma);
}
tvalue.probability = this_probability * highvalue.probability + (1 - this_probability) * lowvalue.probability;
tvalue.gradient = this_probability * highvalue.gradient + (1 - this_probability) * lowvalue.gradient;
if ((GetIndex(Current) == TargetVar) ||
((TargetPattern != NULL) && patternmatch(TargetPattern, MyManager.varmap.vars[GetIndex(Current)]))) {
if (type == 0) { // current node is normal probabilistic fact
tvalue.gradient += (highvalue.probability - lowvalue.probability) * this_probability * (1 - this_probability) * params.sigmoid_slope;
} else if (type == 1) { // it's a continues fact and we need d/dmu
tvalue.gradient += cumulative_normal_dmu(dynvalue_parsed.low, dynvalue_parsed.high, dynvalue_parsed.mu, dynvalue_parsed.sigma) * (highvalue.probability + lowvalue.probability);
} else if (type == 2) { // it's a continues fact and we need d/dsigma
tvalue.gradient += cumulative_normal_dsigma(dynvalue_parsed.low, dynvalue_parsed.high, dynvalue_parsed.mu, dynvalue_parsed.sigma) * (highvalue.probability + lowvalue.probability);
}
}
gradient = (double *) malloc(sizeof(double));
*gradient = tvalue.gradient;
AddNode(MyManager.his, MyManager.varmap.varstart, Current, tvalue.probability, 0, gradient);
return tvalue;
}
char * extractpattern(char *thestr) {
char *p;
int i = 0, sl = strlen(thestr);
while((thestr[i] != '_') && (i < sl)) i++;
if (i == sl) return NULL;
i++;
p = (char *) malloc(sizeof(char) * (i + 2));
strncpy(p, thestr, i);
p[i] = '*';
p[i + 1] = '\0';
return p;
}
int patterncalculated(char *pattern, extmanager MyManager, int loc) {
int i;
if (pattern == NULL) return 0;
for (i = loc - 1; i > -1; i--)
if (patternmatch(pattern, MyManager.varmap.vars[i])) return 1;
return 0;
}