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sequence.cc
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/*---------------------------------------------------------------
PRISM: A Prime-Encoding approach for frequent Sequence Mining.
Authors: Karam Gouda, Mosab Hassan and Mohammad J. Zaki
-----------------------------------------------------------------*/
#include <errno.h>
#include <iostream>
#include <fstream>
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <fcntl.h>
#include <sys/stat.h>
//#include <sys/mode.h>
#include <unistd.h>
#include <sys/time.h>
#include <time.h>
#include <sys/types.h>
#include <strings.h>
#include <sys/mman.h>
#include <malloc.h>
#include <strings.h>
#include "Eqclass.h"
#include "Itemset.h"
#include "Lists.h"
#include "extl2.h"
#include "partition.h"
#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))
#define NONMAXFLG -2
#define MBYTE (1024*1024)
//#define GETBIT(a,b) ((a >> b) & 01)
//#define SETBIT(a,v,b) ((v != 0) ? (a | (01 << b)): (a & ~(01 << b)))
#define CUSTID(a, b) ((a)[2*(b)])
#define TID(a, b) ((a)[2*(b)+1])
#define LJOIN 0
#define EJOIN 1
#define MJOIN 2
long MEMUSED = 0;
long AVAILMEM = 32*MBYTE;
char fname[300];
char constf[300]; // constraint file
char dataf[300];
char idxf[300];
char conf[300];
char it2f[300];
char seqf[300];
double L2ISECTTIME=0, EXTL1TIME=0, EXTL2TIME=0;
int *NumLargeItemset;
int maxitemsup;
Itemset *item1, *item2; // for use in reading external dbase
Array *interval, *interval2;
GArray *interv1, *interv2, *interv3;
GArray *inter, *inter2, *inter3;
int maxeqsize = 1;
EqGrNode** eqgraph;
double MAXIMAL_THRESHOLD = 1.0;
int ext_l2_pass = 0;
int use_clique = 0;
char use_constraint =0;
int use_hash = 0;
int num_intersect=0;
int recursive = 0;
FILE *out;
int maxiter = 2;
int min_gap = 0;
int max_gap = (int)pow(2,sizeof(int)*8); //infinity
int window = 0;
char memtrace = 0;
char use_newformat = 1;
int use_ascending = -2;
char use_isetonly = 0;
int L2pruning = 0;
char print_seq = 0;
ofstream mout;
int DBASE_NUM_TRANS;
int DBASE_MAXITEM;
float DBASE_AVG_TRANS_SZ;
float DBASE_AVG_CUST_SZ;
int DBASE_TOT_TRANS;
double MINSUP_PER;
int MINSUPPORT=-1;
int FreqArraySz = 100;
FreqIt **FreqArray;
int FreqArrayPos = 0;
//For using Prime Encoding------------------------------
int N, u2;
int it1_pos_arr[9]={0};
int it2_pos_arr[9]={0};
unsigned char Sup_Array[256]={0,1,1,1,1,1,1,1,1};
unsigned char Prime[8]={19,2,3,5,7,11,13,17};
//Ref_Array to give the order of its indices (prime numbers) inside P_Star
unsigned char Ref_Array[2000] ={0,0,1,2,0,3,0,4,0,0,0,5,0,6,0,0,0,7,0,8};
//unsigned char *GCD_Matrix[256]={0};
unsigned char GCD_Matrix[256][256]={0};
//unsigned char P_Factors[9][256]={{0},{0,1,2,3,4,5,6,7,8}, {0},{0},{0},{0},{0},{0},{0}};
unsigned char P_Rem[9][256]={{0},{0}, {0},{0},{0},{0},{0},{0},{0}};
//GArray *Common_Factors[256][256]={0}; //used in intersecting compressed sids
unsigned char *Common_Factors[256][256]={0};
//unsigned char **Common_Factors[256]={0};
//unsigned char FFGreater[9]={0}; //only for sequence mining
//AspArray contains the products of all prime factors greater than the index
unsigned char AspArray[256]={0};
//unsigned char Temp[257][257]={0};
//________________________________________________________
void process_cluster1(Eqclass *cluster, Lists<Eqclass *> *LargeL, int iter);
void add_freq(Itemset *it, int templ)
{
FreqIt *freq = new FreqIt(it->itemset()->array(), it->size(), templ);
if (FreqArrayPos+1 >= FreqArraySz){
FreqArraySz = (int)(1.5*FreqArraySz);
FreqArray = (FreqIt **)realloc(FreqArray, FreqArraySz*sizeof(FreqIt*));
if (FreqArray == NULL){
perror("no mmeory fro FREqArray ");
exit(-1);
}
}
FreqArray[FreqArrayPos++] = freq;
}
void print_freqary()
{
int j=0;
cout << "FREQARRAY " << FreqArrayPos << ":" << endl;
for (j=0; j < FreqArrayPos; j++){
cout << *FreqArray[j];
}
cout << "!!!!!!!!!!!!!!!!!!!!" << endl;
}
void parse_args(int argc, char **argv)
{
extern char * optarg;
int c;
if (argc < 2)
cout << "usage: seq -i<infile> -s<support> -e 1\n";
else{
while ((c=getopt(argc,argv,"a:bce:fhi:l:m:ors:t:u:v:w:x:"))!=-1){
switch(c){
case 'a':
//if val = -1 then do ascending generation
//else only generate the eqclass given by the value
use_ascending = atoi(optarg);
break;
case 'b':
use_isetonly = 1;
break;
case 'c': //use constraints file
use_constraint = 1;
sprintf(constf,"%s.constraint", fname);
break;
case 'e': //calculate L2 from inverted dbase
num_partitions = atoi(optarg);
ext_l2_pass = 1;
break;
case 'f':
use_newformat = 0;
break;
case 'h': //use hashing to prune candidates
use_hash = 1;
break;
case 'i': //input file
sprintf(fname, "%s", optarg);
sprintf(dataf,"%s.tpose", optarg);
sprintf(idxf,"%s.idx", optarg);
sprintf(conf,"%s.conf", optarg);
sprintf(it2f,"%s.2it", optarg);
sprintf(seqf,"%s.2seq", optarg);
break;
case 'l': //min-gap between items (not implemented)
min_gap = atoi(optarg);
break;
case 'm': //amount of mem available
AVAILMEM = (long) atof(optarg)*MBYTE;
break;
case 'o': //print sequences
print_seq = 1;
break;
case 'r': //use recursive algorithm (doesn't work with pruning)
recursive = 1;
break;
case 's': //min support
MINSUP_PER = atof(optarg);
break;
case 't': //not used
MAXIMAL_THRESHOLD = atof(optarg);
break;
case 'u': //max-gap between items (not implemented)
max_gap = atoi(optarg);
break;
case 'v':
u2 = atoi(optarg);
break;
case 'w': //sliding window (not implemented)
window = atoi(optarg);
break;
case 'x':
memtrace = 1;
mout.open(optarg, ios::app);
break;
}
}
}
c= open(conf, O_RDONLY);
if (c < 0){
perror("ERROR: invalid conf file\n");
exit(errno);
}
read(c,(char *)&DBASE_NUM_TRANS,ITSZ);
if (MINSUPPORT == -1)
MINSUPPORT = (int) (MINSUP_PER*DBASE_NUM_TRANS+0.5);
//ensure that support is at least 2
if (MINSUPPORT < 2) MINSUPPORT = 2;
//cout << "MINSUPPORT " << MINSUPPORT << " " << DBASE_NUM_TRANS << endl;
read(c,(char *)&DBASE_MAXITEM,ITSZ);
read(c,(char *)&DBASE_AVG_CUST_SZ,sizeof(float));
read(c,(char *)&DBASE_AVG_TRANS_SZ,sizeof(float));
read(c,(char *)&DBASE_TOT_TRANS,ITSZ);
cout << "CONF " << DBASE_NUM_TRANS << " " << DBASE_MAXITEM << " "
<< DBASE_AVG_CUST_SZ << " " << DBASE_AVG_TRANS_SZ << " "
<< DBASE_TOT_TRANS << endl;
close(c);
}
int choose(int n, int k)
{
int i;
int val = 1;
if (k >= 0 && k <= n){
for (i=n; i > n-k; i--)
val *= i;
for (i=2; i <= k; i++)
val /= i;
}
return val;
}
void get_2OldF_intersect(Itemset *ljoin, Itemset *ejoin,
int *it1, int *it2, int sup1, int sup2)
{
int i,j,k,l,p,f;
int nval1, nval2;
int l_increment_flag, e_increment_flag;
unsigned char l_temp1, e_temp1;
int temp, l_temp=1, e_temp=1;
int rm, newindex,oldindex,
l_rm, l_newindex,l_oldindex=0, e_rm, e_newindex,e_oldindex=0;
int olpos, oepos;
int a, rval;
int itid, jtid;
num_intersect++;
//start the first position with dummy value
if (ljoin) ljoin->ival2()->optadd(0);
if (ejoin) ejoin->ival2()->optadd(0);
f=0;//a counter on indexes of sids of the prefix
for (i=0,j=0; i < sup1 && j < sup2;){
itid = it1[i];
jtid = it2[j];
if (itid > jtid){
nval2 = it2[j+1]; //nval2 seq length
j += (nval2+2); //to move to the next seq id in it2
}
else if (itid < jtid){
nval1 = it1[i+1]; //nval1 seq length
i += (nval1+2); //to move to the next seq id in it1
f++;
}
else{
i++;
j++;
nval1 = it1[i++]; // seq size in it1
nval2 = it2[j++]; // seq size in it2
rval = it1[i]; //get reference value to start encoding from it
if (ljoin){
l_increment_flag = 0;
if ( rval < it2[j+nval2-1]){
l_increment_flag=1;
olpos = ljoin->ival1size(); //get current size of tid array
temp = 1;
oldindex = 0;
ljoin->increment_support();
for (l=j; l < j+nval2; l++){
if ( rval < it2[l]){
a=it2[l] - rval + 1;
newindex = (a-1)/8;
rm = a%8;
if(newindex==oldindex) temp=temp*Prime[rm];
else{
ljoin->ival1()->optadd(Ref_Array[temp%1966]);
oldindex++;
for(p=oldindex;p<newindex;p++){
ljoin->ival1()->optadd(0);
oldindex++;
}
temp=Prime[rm];
}
}
}
ljoin->ival1()->optadd(Ref_Array[temp%1966]);
}
if (l_increment_flag){ //i.e., correspondent sids are matching.
//Add to sid array the starting position (or the size)
//of the current sequence block at the tid array
l_newindex=(f+1-1)/8;
l_rm=(f+1)%8;
if(l_newindex==l_oldindex){
l_temp=l_temp*Prime[l_rm];
//ljoin->ival2()->optadd(olpos);
//if ((ljoin->ival1size()-olpos)==1)
// ljoin->increment_ones();
ljoin->ival2()->optadd(ljoin->ival1size()-olpos);
}
else{
if (l_temp == 1) l_temp1 = 0;
else l_temp1 = Ref_Array[l_temp%1966];
//Put the encoded sids in the right place of sids array
ljoin->ival2()->setitem
(ljoin->ival2size()-Sup_Array[l_temp1]-1, l_temp1);
l_oldindex++;
for(p=l_oldindex;p<l_newindex;p++){
ljoin->ival2()->optadd(0);
l_oldindex++;
}
//Add dummy value for the next encoded sids
ljoin->ival2()->optadd(0);
//ljoin->ival2()->optadd(olpos);
//if ((ljoin->ival1size()-olpos)==1)
// ljoin->increment_ones();
ljoin->ival2()->optadd(ljoin->ival1size()-olpos);
l_temp=Prime[l_rm];
}
}
}
if (ejoin){
e_increment_flag = 0;
temp = 1;
oldindex = 0;
oepos = ejoin->ival1size();
for (k=i, l=j; k < i+nval1 && l < j+nval2;){
if (it1[k] < it2[l]) k++;
else if (it1[k] > it2[l]) l++;
else{
a=it2[l] - rval + 1;
newindex = (a-1)/8;
rm = a%8;
if(newindex==oldindex) temp=temp*Prime[rm];
else{
ejoin->ival1()->optadd(Ref_Array[temp%1966]);
oldindex++;
for(int p=oldindex;p<newindex;p++){
ejoin->ival1()->optadd(0);
oldindex++;
}
temp=Prime[rm];
}
e_increment_flag=1;
k++;
l++;
}
}
if (e_increment_flag){
ejoin->ival1()->optadd(Ref_Array[temp%1966]);
ejoin->increment_support();
e_newindex=(f+1-1)/8;
e_rm=(f+1)%8;
if(e_newindex==e_oldindex){
e_temp=e_temp*Prime[e_rm];
//ejoin->ival2()->optadd(oepos);
ejoin->ival2()->optadd(ejoin->ival1size()-oepos);
}
else{
if (e_temp == 1) e_temp1 = 0;
else e_temp1 = Ref_Array[e_temp%1966];
//Put the commpressed sids in the right place of the 2nd array
ejoin->ival2()->setitem
(ejoin->ival2size()-Sup_Array[e_temp1]-1, e_temp1);
e_oldindex++;
for(p=e_oldindex;p<e_newindex;p++){
ejoin ->ival2()->optadd(0);
e_oldindex++;
}
//Add dummy value for the next compressed sids
ejoin ->ival2()->optadd(0);
//ejoin->ival2()->optadd(oepos);
ejoin->ival2()->optadd(ejoin->ival1size()-oepos);
e_temp=Prime[e_rm];
}
}
}
i += nval1;
j += nval2;
f++;
}
}
if (ljoin){
l_temp1= Ref_Array[l_temp%1966];
ljoin->ival2()->setitem
(ljoin->ival2size()-Sup_Array[l_temp1]-1, l_temp1);
}
if (ejoin){
e_temp1= Ref_Array[e_temp%1966];
ejoin->ival2()->setitem
(ejoin->ival2size()-Sup_Array[e_temp1]-1, e_temp1);
}
}
void get_2NewF_intersect(Itemset *ljoin, Itemset *ejoin,
int *it1, int *it2, int sup1, int sup2)
{
int i,j,k,l,p,f;
int nval1, nval2;
int l_increment_flag, e_increment_flag;
unsigned char l_temp1, e_temp1;
int temp, l_temp=1, e_temp=1;
int rm, newindex,oldindex,
l_rm, l_newindex,l_oldindex=0, e_rm, e_newindex,e_oldindex=0;
int olpos, oepos;
int a, rval;
int itid, jtid;
num_intersect++;
//Start the first position with dummy value
if (ljoin) ljoin->ival2()->optadd(0);
if (ejoin) ejoin->ival2()->optadd(0);
f=0;//A counter on indexes of the prefix's sids
for (i=0,j=0; i < sup1 && j < sup2;){
itid = it1[i];
jtid = it2[j];
if (itid > jtid){
nval2 = j;
while(it2[j] == it2[nval2] && nval2 < sup2) nval2 += 2;
j = nval2;
}
else if (itid < jtid){
nval1 = i;
while(it1[i] == it1[nval1] && nval1 < sup1) nval1 += 2;
i = nval1;
f++;
}
else{
nval1 = i;
nval2 = j;
rval = it1[i+1]; //Get a reference value to start encoding from it
while(it1[i] == it1[nval1] && nval1 < sup1) nval1 += 2;
while(it2[j] == it2[nval2] && nval2 < sup2) nval2 += 2;
if (ljoin){
l_increment_flag = 0;
if ( rval < it2[nval2-1]){
l_increment_flag=1;
olpos = ljoin->ival1size(); //Get current size of tid array
temp = 1;
oldindex = 0;
ljoin->increment_support();
for (l=j; l < nval2; l+=2){
if ( rval < it2[l+1]){
a=it2[l+1] - rval + 1;
newindex = (a-1)/8;
rm = a%8;
if(newindex==oldindex) temp=temp*Prime[rm];
else{
ljoin->ival1()->optadd(Ref_Array[temp%1966]);
oldindex++;
for(p=oldindex;p<newindex;p++){
ljoin->ival1()->optadd(0);
oldindex++;
}
temp=Prime[rm];
}
}
}
ljoin->ival1()->optadd(Ref_Array[temp%1966]);
}
if (l_increment_flag){ //i.e., corresponding sids are matching.
//Add to sid array the starting position (or the size)
//of the current sequence block at the tid array
l_newindex=(f+1-1)/8;
l_rm=(f+1)%8;
if(l_newindex==l_oldindex){
l_temp=l_temp*Prime[l_rm];
//ljoin->ival2()->optadd(olpos);
//if ((ljoin->ival1size()-olpos)==1)
// ljoin->increment_ones();
ljoin->ival2()->optadd(ljoin->ival1size()-olpos);
}
else{
if (l_temp == 1) l_temp1 = 0;
else l_temp1 = Ref_Array[l_temp%1966];
//Put the encoded sids in the right place of sids array
ljoin->ival2()->setitem
(ljoin->ival2size()-Sup_Array[l_temp1]-1, l_temp1);
l_oldindex++;
for(p=l_oldindex;p<l_newindex;p++){
ljoin->ival2()->optadd(0);
l_oldindex++;
}
//Add dummy value for the next encoded sids
ljoin->ival2()->optadd(0);
//ljoin->ival2()->optadd(olpos);
//if ((ljoin->ival1size()-olpos)==1)
// ljoin->increment_ones();
ljoin->ival2()->optadd(ljoin->ival1size()-olpos);
l_temp=Prime[l_rm];
}
}
}
if (ejoin){
e_increment_flag = 0;
temp = 1;
oldindex = 0;
oepos = ejoin->ival1size();
for (k=i, l=j; k < nval1 && l < nval2;){
if (it1[k+1] < it2[l+1]) k+=2;
else if (it1[k+1] > it2[l+1]) l+=2;
else{
a=it2[l+1] - rval + 1;
newindex = (a-1)/8;
rm = a%8;
if(newindex==oldindex) temp=temp*Prime[rm];
else{
ejoin->ival1()->optadd(Ref_Array[temp%1966]);
oldindex++;
for(int p=oldindex;p<newindex;p++){
ejoin->ival1()->optadd(0);
oldindex++;
}
temp=Prime[rm];
}
e_increment_flag=1;
k+=2;
l+=2;
}
}
if (e_increment_flag){
ejoin->ival1()->optadd(Ref_Array[temp%1966]);
ejoin->increment_support();
e_newindex=(f+1-1)/8;
e_rm=(f+1)%8;
if(e_newindex==e_oldindex){
e_temp=e_temp*Prime[e_rm];
//ejoin->ival2()->optadd(oepos);
ejoin->ival2()->optadd(ejoin->ival1size()-oepos);
}
else{
if (e_temp == 1) e_temp1 = 0;
else e_temp1 = Ref_Array[e_temp%1966];
//Put the encoded sids in the right place of the 2nd array
ejoin->ival2()->setitem
(ejoin->ival2size()-Sup_Array[e_temp1]-1, e_temp1);
e_oldindex++;
for(p=e_oldindex;p<e_newindex;p++){
ejoin ->ival2()->optadd(0);
e_oldindex++;
}
//Add dummy value for the next encoded sids
ejoin ->ival2()->optadd(0);
//ejoin->ival2()->optadd(oepos);
ejoin->ival2()->optadd(ejoin->ival1size()-oepos);
e_temp=Prime[e_rm];
}
}
}
i = nval1;
j = nval2;
f++;
}
}
if (ljoin){
l_temp1= Ref_Array[l_temp%1966];
ljoin->ival2()->setitem
(ljoin->ival2size()-Sup_Array[l_temp1]-1, l_temp1);
}
if (ejoin){
e_temp1= Ref_Array[e_temp%1966];
ejoin->ival2()->setitem
(ejoin->ival2size()-Sup_Array[e_temp1]-1, e_temp1);
}
}
int interval_comp(int a, int b, int c, int d)
{
if (a < c) return -1;
else if (a > c) return 1;
else{
if (b < d) return -1;
else if (b > d) return 1;
else return 0;
}
}
void make_itemset(Itemset *it, GArray *ary, GArray *ary2)
{
int i;
for (i=0; i < ary->size(); i++){
it->ival1()->optadd((*ary)[i]);
}
for (i=0; i < ary2->size(); i++){
it->ival2()->optadd((*ary2)[i]);
}
}
/*
void get_tmpEqNewF_intersect(Itemset *&ljoin, int &lcnt, Itemset *it1,
int iter, int x, int list)
{
int i,j,l, m, f, ii, lz;
int a, c,ysup,sp;
int nval1;
int flag1;
int olpos;
int lones=0;
int Mlpos;
Itemset *templ=ljoin;
Itemset *temp=ljoin;
int it1post=0;
unsigned char N_gcd_Val;
num_intersect++;
lcnt = 0;
int dc1 = it1->support()-MINSUPPORT;
int df1=it1->ones();
//if (df1 > dc1) templ=NULL;
if (df1 <= dc1){
ljoin = new Itemset(iter, it1->ival1size()-df1, it1->ival2size()-df1);
for (i=0; i < it1->ival2size(); ){
if (templ==NULL) break;
a = it1->ival2(i);
if(a==0){
if (list==2) ljoin->ival2()->optadd(0);
i+=1;
continue;
}
c=Sup_Array[a];
Mlpos=ljoin->ival2size();
ljoin->ival2()->optadd(a);
lz=0;
for(int h=1; h<=c; h++){
if (templ==NULL) break;
//ii=i+h;
nval1=it1->ival2(i+h);
if (nval1 == 1 ){
flag1=it1->ival1(it1post);
if (Sup_Array[flag1]!=1){
N_gcd_Val=P_Rem[1][flag1];
//lary2->optadd(lary->size());
ljoin->ival2()->optadd(1);
ljoin->ival1()->optadd(N_gcd_Val);
if (Sup_Array[N_gcd_Val]==1) lones++;
lcnt++; lz++;
}
else ljoin->ival2()->setitem(Mlpos, P_Rem[lz+1][ljoin->ival2()->item(Mlpos)]);
}
else{
ysup=0;
f=it1post+nval1;
for(l=it1post;l<(it1post+nval1);l++){
if(it1->ival1(l)!=0){
N_gcd_Val=P_Rem[1][it1->ival1(l)];
m = l+1;
if (m < f){
//lary2->optadd(lary->size());
ljoin->ival2()->optadd(f-l);
ljoin->ival1()->optadd(N_gcd_Val);
ysup++;
for(; m < f; m++) ljoin->ival1()->optadd(it1->ival1(m));
}
else if (N_gcd_Val != 0){
//lary2->optadd(lary->size());
ljoin->ival2()->optadd(1);
ljoin->ival1()->optadd(N_gcd_Val);
if (Sup_Array[N_gcd_Val]==1) lones++;
ysup++;
}
break;
}
}
if (ysup>0){lz++; lcnt++;}
else{
ljoin->ival2()->setitem(Mlpos, P_Rem[lz+1][ljoin->ival2()->item(Mlpos)]);
if ((++df1) > dc1) templ=NULL;
}
}
it1post+=nval1;
}
i+=c+1;
}
if (lcnt >= MINSUPPORT){
//ljoin=templ;
ljoin->set_ones(lones);
ljoin->set_support(lcnt);
}
else delete ljoin;
}
}
*/
void get_tmpEqNewF_intersect(Itemset *&ljoin, int &lcnt, Itemset *it1,
int iter, int x, int list)
{
int i,j,l, m, h, f, lz;
int a, c,ysup,sp;
int nval1;
int flag1;
GArray *lary;
GArray *lary2;
int olpos;
int lones=0;
int Mlpos;
Itemset *templ=ljoin;
int it1post=0;
unsigned char N_gcd_Val;
num_intersect++;
lcnt = 0;
int dc1 = it1->support()-MINSUPPORT;
int df1=it1->ones();
//if (df1 > dc1) templ=NULL;
if (df1 <= dc1){
lary = interv1;
lary2 = inter;
lary->reset();
lary2->reset();
for (i=0; i < it1->ival2size(); ){
if (templ==NULL) break;
a = it1->ival2(i);
if(a==0){
if (list==2) lary2->optadd(0);
i+=1;
continue;
}
c=Sup_Array[a];
Mlpos=lary2->size();
lary2->optadd(a);
lz=0;
for(h=1; h<=c; h++){
nval1=it1->ival2(i+h);
if (nval1 == 1 ){
flag1=it1->ival1(it1post);
if (Sup_Array[flag1]!=1){
N_gcd_Val=P_Rem[1][flag1];
//lary2->optadd(lary->size());
lary2->optadd(1);
lary->optadd(N_gcd_Val);
if (Sup_Array[N_gcd_Val]==1) lones++;
lcnt++; lz++;
}
else lary2->setitem(Mlpos, P_Rem[lz+1][lary2->item(Mlpos)]);
}
else{
ysup=0;
f=it1post+nval1;
for(l=it1post;l<f;l++){
if(it1->ival1(l)!=0){
N_gcd_Val=P_Rem[1][it1->ival1(l)];
m = l+1;
if (m < f){
//lary2->optadd(lary->size());
lary2->optadd(f-l);
lary->optadd(N_gcd_Val);
ysup++;
for(; m < f; m++) lary->optadd(it1->ival1(m));
}
else if (N_gcd_Val != 0){
//lary2->optadd(lary->size());
lary2->optadd(1);
lary->optadd(N_gcd_Val);
if (Sup_Array[N_gcd_Val]==1) lones++;
ysup++;
}
break;
}
}
if (ysup>0){lz++; lcnt++;}
else{
lary2->setitem(Mlpos, P_Rem[lz+1][lary2->item(Mlpos)]);
if ((++df1) > dc1) templ=NULL;
}
}
it1post+=nval1;
}
i+=c+1;
}
if (lcnt >= MINSUPPORT){
ljoin = new Itemset(iter, lary->size(), lary2->size());
ljoin->set_ones(lones);
ljoin->set_support(lcnt);
make_itemset(ljoin, lary, lary2);
}
}
}
void get_tmpNewF_intersect(Itemset *&ljoin, Itemset *&ejoin, Itemset *&mjoin,
int &lcnt, int &ecnt, int &mcnt,
Itemset *it1, Itemset *it2, int iter, int x, int list)
{
int i,j,h,k,l, m, f, d, ii, jj, lz, mz, ez;
//char ff;
int a, b, c, ysup, sp;
int nval1, nval2;
int flag1, lflge, flag, P0;
GArray *lary, *eary, *mary;
GArray *lary2, *eary2, *mary2;
int olpos, oepos, ompos;
int lones=0, mones=0, eones=0;
int nlmin=0, nemin=0, nmmin=0;
int Mlpos, Mmpos, Mepos;
Itemset *templ=ljoin, *tempe=ejoin, *tempm = mjoin;
int it1positioner=0, it2positioner=0;
int intersct_fact1, intersct_fact2;
//int count, r1, r2;
//GArray *Common;
unsigned char *Common;
int it1post, it2post;
int ll, sum;
unsigned char N_Val, N_gcd_Val;
//int s1=0, s2=0;
num_intersect++;
lcnt = ecnt = mcnt = 0;
int dc1 = it1->support()-MINSUPPORT;
int dc2 = it2->support()-MINSUPPORT;
int df1=0;
int df2=0;
//Preproccessing loop to get initial values to df1 and df2
for (i=0,j=0; i < it1->ival2size() && j < it2->ival2size(); ){
if (df1 > dc1 || df2 > dc2){
templ=NULL; tempm=NULL; tempe=NULL;
break;
}
a = it1->ival2(i);
b = it2->ival2(j);
/////////////////////////////
if (a==0){
i++;
j+=Sup_Array[b]+1;
df2+=Sup_Array[b];
continue;
}
if (b==0){
i+=Sup_Array[a]+1;
j++;
df1+=Sup_Array[a];
continue;
}
//////////////////////////
N_Val=GCD_Matrix[a][b];
c=Sup_Array[N_Val];
// //In case you want to build ljoin, ejoin, and mjoin before computations
// Common=Common_Factors[a][b];
// d=0;
// for(h=1; h<=c; h++){
// s1+=it1->ival2(i+Common->item(d++));
// s2+=it2->ival2(j+Common->item(d++));
// }
df1+=Sup_Array[a]-c;
df2+=Sup_Array[b]-c;
i+=Sup_Array[a]+1;
j+=Sup_Array[b]+1;
}
if (templ!=NULL || tempm!=NULL || tempe!=NULL){
lary = interv1;
eary = interv2;
mary = interv3;
lary->reset();
eary->reset();
mary->reset();
lary2 = inter;
eary2 = inter2;
mary2 = inter3;
lary2->reset();
eary2->reset();
mary2->reset();
for (i=0,j=0; i < it1->ival2size() && j < it2->ival2size(); ){
if (templ==NULL && tempm==NULL && tempe==NULL) break;
a = it1->ival2(i);
b = it2->ival2(j);
if (b!=0){
sum=0;
for (ll=2; ll<=Sup_Array[b]+1; ll++){
sum+= it2->ival2(j+ll-1);
it2_pos_arr[ll]=sum;
}
}
//In case of list==1 we can get rid of zeros in it1 that appeared in the
//previous iteration, otherwise we can not
if(a==0){
if (list==2){
lary2->optadd(0);
eary2->optadd(0);
mary2->optadd(0);
}
i+=1;
j+=Sup_Array[b]+1;
if (b!=0) it2positioner+=it2_pos_arr[Sup_Array[b]+1];
continue;
}
sum=0;
for (ll=2; ll<=Sup_Array[a]+1; ll++){
sum+= it1->ival2(i+ll-1);
it1_pos_arr[ll]=sum;
}
if(b==0){
mary2->optadd(0);
eary2->optadd(0);
lary2->optadd(0);
j+=1;
i+=Sup_Array[a]+1;
it1positioner+=it1_pos_arr[Sup_Array[a]+1];
continue;
}
N_Val=GCD_Matrix[a][b];
c=Sup_Array[N_Val];
if(c==0){
lary2->optadd(0);
mary2->optadd(0);
eary2->optadd(0);
i+=Sup_Array[a]+1;
j+=Sup_Array[b]+1;
it1positioner+=it1_pos_arr[Sup_Array[a]+1];
it2positioner+=it2_pos_arr[Sup_Array[b]+1];
continue;
}
//Get the exact position for values that would be modified later
Mlpos=lary2->size();
Mmpos=mary2->size();
Mepos=eary2->size();
//Add the value, gcd(a,b), that would be modified later
lary2->optadd(N_Val);
mary2->optadd(N_Val);
eary2->optadd(N_Val);
//if (a<=b){ ff=1; Common=Common_Factors[a][b];}
//else {ff=0; Common=Common_Factors[b][a];}
Common=Common_Factors[a][b];
d=0;//A counter on the third dimension of Common matrix for element (a,b)
lz=0; mz=0;ez=0;//Variables that help in the modification of N_Val
for(h=1; h<=c; h++){
//if (ff){
intersct_fact1=Common[d++];
intersct_fact2=Common[d++];
//intersct_fact1=Common->item(d++);
//intersct_fact2=Common->item(d++);
//}
// else{
// intersct_fact2=Common[d++];
// intersct_fact1=Common[d++];
// intersct_fact2=Common->item(d++);
// intersct_fact1=Common->item(d++);