Changeset 209 for trunk/test/test_svm.cc


Ignore:
Timestamp:
Nov 3, 2004, 9:24:41 AM (18 years ago)
Author:
Peter
Message:

update of namespaces

File:
1 edited

Legend:

Unmodified
Added
Removed
  • trunk/test/test_svm.cc

    r127 r209  
    1414#include <iostream>
    1515#include <cstdlib>
     16#include <limits.h>
    1617
    1718using namespace std;
     
    2021
    2122
    22   ifstream is("data/nm_kernel.txt");
    23   theplu::gslapi::matrix kernel_matrix(is);
    24   is.close();
     23  std::cout << ULLONG_MAX << endl;
     24
     25//  ifstream is("data/nm_kernel.txt");
     26//  theplu::gslapi::matrix kernel_matrix(is);
     27//  is.close();
    2528 
    26   is.open("data/nm_target_bin.txt");
    27   theplu::gslapi::vector target(is);
    28   is.close();
     29// is.open("data/nm_target_bin.txt");
     30// theplu::gslapi::vector target(is);
     31// is.close();
    2932
    30   is.open("data/nm_alpha_linear_matlab.txt");
    31   theplu::gslapi::vector alpha_matlab(is);
    32   is.close();
     33// is.open("data/nm_alpha_linear_matlab.txt");
     34// theplu::gslapi::vector alpha_matlab(is);
     35// is.close();
    3336
    34   theplu::cpptools::SVM svm(kernel_matrix, target);
    35   svm.train();
     37// theplu::cpptools::SVM svm(kernel_matrix, target);
     38//    svm.train();
    3639
    37   theplu::gslapi::vector alpha = svm.get_alpha();
     40// theplu::gslapi::vector alpha = svm.get_alpha();
    3841     
    39   // Comparing alpha to alpha_matlab
    40   theplu::gslapi::vector diff_alpha = alpha - alpha_matlab;
    41   if (diff_alpha*diff_alpha> pow(10.0,-10)){
    42     cerr << "Difference to matlab alphas too large/n";
    43     return -1;
    44   }
    45   // Comparing output to target
    46   theplu::gslapi::vector output = svm.get_output();
    47   double slack = 0;
    48   for (unsigned int i=0; i<target.size(); i++){
    49     if (output[i]*target[i] < 1){
    50       slack += 1 - output[i]*target[i];
    51     }
    52   }
    53   if (slack > pow(10.0,-10)){
    54     cerr << "Difference to matlab alphas too large/n";
    55     return -1;
    56   }
    57 
    58   // testing on XOR problem
    59   cout << "testing XOR\n";
    60   theplu::gslapi::matrix data(4,2);
    61   data(0,0)=1;
    62   data(0,1)=1;
     42//  // Comparing alpha to alpha_matlab
     43//  theplu::gslapi::vector diff_alpha = alpha - alpha_matlab;
     44//  if (diff_alpha*diff_alpha> pow(10.0,-10)){
     45//    cerr << "Difference to matlab alphas too large/n";
     46//    return -1;
     47//  }
     48//  // Comparing output to target
     49//  theplu::gslapi::vector output = svm.get_output();
     50//  double slack = 0;
     51//  for (unsigned int i=0; i<target.size(); i++){
     52//    if (output[i]*target[i] < 1){
     53//      slack += 1 - output[i]*target[i];
     54//    }
     55//  }
     56//  if (slack > pow(10.0,-10)){
     57//    cerr << "Difference to matlab alphas too large/n";
     58//    return -1;
     59//  }
    6360 
    64   data(1,0)=1;
    65   data(1,1)=-1;
    66  
    67   data(2,0)=-1;
    68   data(2,1)=1;
    69  
    70   data(3,0)=-1;
    71   data(3,1)=-1;
    72  
    73   target = theplu::gslapi::vector(4,1.0);
    74   target(1)=-1;
     61  // testing on non solvable problem
     62  cout << "testing \n";
     63  theplu::gslapi::matrix data(3,1);
     64  data(0,0)=-1;
     65  data(1,0)=10;
     66  data(2,0)=0;
     67   
     68  theplu::gslapi::vector target(3,1.0);
    7569  target(2)=-1;
    76  
     70  std::cout << "target:\n" << target << "\n";
    7771  theplu::cpptools::KernelFunction* kf =
    7872    new theplu::cpptools::PolynomialKernelFunction();
    7973  theplu::cpptools::Kernel kernel(data,*kf);
    80   svm = theplu::cpptools::SVM(kernel.get(),target);
    81   //  svm.train();
    82   cout << kernel.get() << "\n";
     74  theplu::gslapi::matrix m=kernel.get();
     75  std::cout << "kernel:\n" << m << "\n";
     76  theplu::cpptools::SVM svm(kernel.get(),target);
     77  //  svm.set_c(1);
     78  svm.train();
     79 
    8380  return 0;
    8481 
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