int GradientBoostingForest::LearnNewInstance()
{
if(!m_pconfig->IsLearnNewInstances)
{
Comm::LogErr("GradientBoostingForest::LearnNewInstance IsLearnNewInstances is 0");
return -1;
}
// std::vector< std::vector<int> > vecTmpInstances(m_pInstancePool->Size());
int LeafCnt = 0;
for(int i=0;i<m_Forest.size();i++)
{
DecisionTree * pTree = m_Forest[i];
for(int j=0;j<pTree->Size();j++)
{
// printf("SizeSize %d\n",pTree->Size());
DecisionTreeNode & node = pTree->GetNode(j);
if(LEAF == node.m_status)
{
/*
if(node.m_InstancesHashCode == 1150390567)
{
printf("f**k debug");
node.print();
}
*/
if(NULL == node.m_ppInstances)
{
Comm::LogErr("GradientBoostingForest::LearnNewInstance fail m_ppInstances is NULL DebugStr = %s",node.DebugStr().c_str());
return -1;
}
node.m_LeafIndex = LeafCnt;
LeafCnt++;
node.m_ppInstances = Comm::Free(node.m_ppInstances);
}
}
}
m_TotLeafCnt = LeafCnt;
if(m_pconfig->OutputNewInstancesFilePath == "null")
{
Comm::LogInfo("GradientBoostingForest::LearnNewInstance OutputNewInstancesFilePath is null");
return 0;
}
std::ostringstream oss;
oss.clear();
oss.str("");
FILE * fp = fopen(m_pconfig->OutputNewInstancesFilePath.c_str(),"w");
if(NULL == fp)
{
Comm::LogErr("GradientBoostingForest::LearnNewInstance fail! open %s fail!",m_pconfig->OutputNewInstancesFilePath.c_str());
return -1;
}
//IsPushBackOgX
if(m_pconfig->IsPushBackOgX)
oss<<"n_feature,"<<LeafCnt + m_pconfig->FeatureNum<<"\n";
else
oss<<"n_feature,"<<LeafCnt<<"\n";
int ret = fputs(oss.str().c_str(),fp);
if(ret < 0)
{
Comm::LogErr("GradientBoostingForest::LearnNewInstance fail!fputs %s fail!",oss.str().c_str());
fclose(fp);
return -1;
}
for(int i=0;i<m_pInstancePool->Size();i++)
{
Instance newInstance;
ret = GetNewInstance(m_pInstancePool->GetInstance(i), newInstance);
if(ret != 0)
{
Comm::LogErr("GradientBoostingForest::LearnNewInstance GetNewInstance i = %d fail!",i);
fclose(fp);
return -1;
}
std::string str = newInstance.ToString() + "\n";
ret = fputs(str.c_str(),fp);
if(ret < 0)
{
Comm::LogErr("GradientBoostingForest::LearnNewInstance fputs %s fail!",str.c_str());
fclose(fp);
return -1;
}
}
fclose(fp);
return 0;
}