double VilmaOracle::PwVilmaRegularized<Loss>::risk(const double *weights,
double *subgrad) {
const int pw_dim = data_->GetDataDim() * kPW;
std::fill(subgrad, subgrad + GetOracleParamsDim(), 0);
const int nexamples = data_->GetDataNumExamples();
DenseVecD w(pw_dim, const_cast<double *>(weights));
// free_params is theta for Ord and beta for Mord
DenseVecD free_params(this->GetFreeParamsDim(),
const_cast<double *>(weights) + pw_dim);
ProjectData(w, data_, wx_buffer_.get(), kPW);
double *wx = wx_buffer_.get();
double obj = 0;
for (int example_idx = 0; example_idx < nexamples; ++example_idx) {
double val = this->UpdateSingleExampleGradient(free_params, wx, example_idx,
subgrad, subgrad + pw_dim);
obj += val;
wx += kPW;
}
// normalize
for (int i = 0; i < this->GetOracleParamsDim(); ++i) subgrad[i] /= nexamples;
obj /= nexamples;
return obj;
}
void MainWindow::OpenFile(const QString& file){
setStatusTip(UTF8("打开文件：")+file);
bool test_ok = false;
QFile fp(file);
test_ok = fp.exists();
if(!test_ok) throw AlertException(UTF8("打开失败"),UTF8("文件不存在:\n")+file);
test_ok = fp.open(QFile::ReadOnly);
if(!test_ok) throw AlertException(UTF8("打开失败"),UTF8("无法读取文件:\n")+file);
QTextStream CurrentFile(&fp);
//读取文件中的配置
QString Line;
QString OData;
QTextStream ProjectData(&OData);
bool switcher = false;
while( !CurrentFile.atEnd() ){
Line = CurrentFile.readLine();
if( !switcher ){ //非 配置or导出 部分
if(Line.startsWith(StartIndent) || Line.startsWith(AutoGenIndent)){
switcher = true;
continue;
}
}else{ //配置or导出 部分
switcher = !(Line.startsWith(EndIndent) || Line.startsWith(AutoGenEndIndent));
ProjectData<<Line<<endl;
}
}
bool start = false;
while(!ProjectData.atEnd()){
QString Line = ProjectData.readLine();
if( Line == "[GLOBAL]" ){
start = true;
continue;
}
if( Line == "[END]" ){
start = false;
continue;
}
if(!start) continue;
Line = Line.trimmed();
QString ID = Line.section(' ',0,0).toLower();
ID.truncate(ID.length()-1);
QString Value = multiLine( Line.section(' ',1) );
CurrentSetting->setProperty(ID.toStdString().data(),Value);
}
if(!test_ok) throw AlertException(UTF8("打开失败"),UTF8("无法在文件中识别本程序的格式"));
ProjectData.reset();
wm->restart();
//移动当前目录
QString stuff_dir = file + STUFF_FOLDER;
QDir stuff(stuff_dir);
if( !stuff.exists() ){
stuff.mkdir(stuff_dir);
}
stuff.setCurrent(stuff_dir);
qDebug()<<"[OPEN FILE]Current dir is "<<QDir::currentPath();
wm->SessionResume(OData);
CurrentFilePath = file;
this->setWindowTitle(file+QString(" - cssSprites"));
}
