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commit the fix

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tqchen 2014-05-08 19:31:32 -07:00
parent 93778aa4aa
commit ecf6e8f49f
3 changed files with 20 additions and 13 deletions
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10
regrank/xgboost_regrank.h
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@ -200,11 +200,6 @@ namespace xgboost{
fprintf(fo, "[%d]", iter); fprintf(fo, "[%d]", iter);
for (size_t i = 0; i < evals.size(); ++i){ for (size_t i = 0; i < evals.size(); ++i){
this->PredictRaw(preds_, *evals[i]); this->PredictRaw(preds_, *evals[i]);
for( size_t j = 0 ; j < preds_.size(); ++ j){
if( fabsf(preds_[j]- 0.5f)>1e-6f){
printf("p[%lu]=%f\n", j,preds_[j]);
}
}
obj_->PredTransform(preds_); obj_->PredTransform(preds_);
evaluator_.Eval(fo, evname[i].c_str(), preds_, evals[i]->info); evaluator_.Eval(fo, evname[i].c_str(), preds_, evals[i]->info);
} }
@ -288,10 +283,7 @@ namespace xgboost{
#pragma omp parallel for schedule( static ) #pragma omp parallel for schedule( static )
for (unsigned j = 0; j < ndata; ++j){ for (unsigned j = 0; j < ndata; ++j){
preds[j] = mparam.base_score + base_gbm.Predict(data.data, j, buffer_offset + j, data.info.GetRoot(j), bst_group ); preds[j] = mparam.base_score + base_gbm.Predict(data.data, j, buffer_offset + j, data.info.GetRoot(j), bst_group );
if( preds[j] != 0.5f ){
printf("pred[%d:%u]=%f\n", bst_group, j, preds[j]);
}
utils::Assert( preds[j] == 0.5f, "BUG");
} }
}else }else
#pragma omp parallel for schedule( static ) #pragma omp parallel for schedule( static )

20
regrank/xgboost_regrank_eval.h
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@ -102,14 +102,22 @@ namespace xgboost{
/*! \brief Error */ /*! \brief Error */
struct EvalMatchError : public IEvaluator{ struct EvalMatchError : public IEvaluator{
public:
EvalMatchError(const char *name){
name_ = name;
abs_ = 0;
if(!strcmp("mabserror", name)) abs_ =1;
}
virtual float Eval(const std::vector<float> &preds, virtual float Eval(const std::vector<float> &preds,
const DMatrix::Info &info) const { const DMatrix::Info &info) const {
const unsigned ndata = static_cast<unsigned>(preds.size()); const unsigned ndata = static_cast<unsigned>(preds.size());
float sum = 0.0f, wsum = 0.0f; float sum = 0.0f, wsum = 0.0f;
#pragma omp parallel for reduction(+:sum,wsum) schedule( static ) #pragma omp parallel for reduction(+:sum,wsum) schedule( static )
for (unsigned i = 0; i < ndata; ++i){ for (unsigned i = 0; i < ndata; ++i){
const float wt = info.GetWeight(i); const float wt = info.GetWeight(i);
if (static_cast<int>(preds[i]) != static_cast<int>(info.labels[i]) ){ int label = static_cast<int>(info.labels[i]);
if( label < 0 && abs_ != 0 ) label = -label-1;
if (static_cast<int>(preds[i]) != label ){
sum += wt; sum += wt;
} }
wsum += wt; wsum += wt;
@ -117,10 +125,13 @@ namespace xgboost{
return sum / wsum; return sum / wsum;
} }
virtual const char *Name(void) const{ virtual const char *Name(void) const{
return "merror"; return name_.c_str();
} }
int abs_;
std::string name_;
}; };
/*! \brief Area under curve, for both classification and rank */ /*! \brief Area under curve, for both classification and rank */
struct EvalAuc : public IEvaluator{ struct EvalAuc : public IEvaluator{
virtual float Eval(const std::vector<float> &preds, virtual float Eval(const std::vector<float> &preds,
@ -303,7 +314,8 @@ namespace xgboost{
} }
if (!strcmp(name, "rmse")) evals_.push_back(new EvalRMSE()); if (!strcmp(name, "rmse")) evals_.push_back(new EvalRMSE());
if (!strcmp(name, "error")) evals_.push_back(new EvalError()); if (!strcmp(name, "error")) evals_.push_back(new EvalError());
if (!strcmp(name, "merror")) evals_.push_back(new EvalMatchError()); if (!strcmp(name, "merror")) evals_.push_back(new EvalMatchError("merror"));
if (!strcmp(name, "mabserror")) evals_.push_back(new EvalMatchError("mabserror"));
if (!strcmp(name, "logloss")) evals_.push_back(new EvalLogLoss()); if (!strcmp(name, "logloss")) evals_.push_back(new EvalLogLoss());
if (!strcmp(name, "auc")) evals_.push_back(new EvalAuc()); if (!strcmp(name, "auc")) evals_.push_back(new EvalAuc());
if (!strncmp(name, "pre@", 4)) evals_.push_back(new EvalPrecision(name)); if (!strncmp(name, "pre@", 4)) evals_.push_back(new EvalPrecision(name));

3
regrank/xgboost_regrank_obj.hpp
View File

@ -134,6 +134,9 @@ namespace xgboost{
} }
Softmax( rec ); Softmax( rec );
int label = static_cast<int>(info.labels[j]); int label = static_cast<int>(info.labels[j]);
if( label < 0 ){
label = -label - 1;
}
utils::Assert( label < nclass, "SoftmaxMultiClassObj: label exceed num_class" ); utils::Assert( label < nclass, "SoftmaxMultiClassObj: label exceed num_class" );
for( int k = 0; k < nclass; ++ k ){ for( int k = 0; k < nclass; ++ k ){
float p = rec[ k ]; float p = rec[ k ];