random_forrest.cpp

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#include <iostream>
#include <shark/Data/SparseData.h>
#include <shark/ObjectiveFunctions/Loss/ZeroOneLoss.h>
#include <shark/ObjectiveFunctions/Loss/SquaredLoss.h>
#include <shark/Algorithms/Trainers/RFTrainer.h>
#include <shark/Models/Kernels/GaussianRbfKernel.h>
 
#include <shark/Core/Timer.h>
 
using namespace shark;
using namespace std;
 
int main(int argc, char **argv) {
    LabeledData<RealVector,unsigned int> data;
    importSparseData(data, "covtype");
    data.shuffle();
    ClassificationDataset test = splitAtElement(data,400000);
 
    RFClassifier<unsigned int> model;
    RFTrainer<unsigned int> trainer(true,true);
        
    Timer time;
    trainer.train(model, data);
    double time_taken = time.stop();
        
    ZeroOneLoss<> loss;
    cout <<  time_taken <<" "<< 1.0 - loss(data.labels(),model(data.inputs()))<< " "<< 1.0 - loss(test.labels(),model(test.inputs()))<<std::endl;
}