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// Copyright (C) 2003--2004 Ronan Collobert (collober@idiap.ch)
//
// This file is part of Torch 3.1.
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// 3. The name of the author may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
// IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
// NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "MSEMeasurer.h"
namespace Torch {
MSEMeasurer::MSEMeasurer(Sequence *inputs_, DataSet *data_, XFile *file_) : Measurer(data_, file_)
{
inputs = inputs_;
internal_error = 0;
addBOption("average examples", &average_examples, true, "divided by the number of examples");
addBOption("average frame size", &average_frame_size, true, "divided by the frame size");
addBOption("average frames", &average_frames, true, "divided by the number of frames");
}
void MSEMeasurer::measureExample()
{
Sequence *desired = data->targets;
real sum = 0;
for(int i = 0; i < inputs->n_frames; i++)
{
real *src_1 = desired->frames[i];
real *src_2 = inputs->frames[i];
for(int j = 0; j < inputs->frame_size; j++)
{
real z = src_2[j] - src_1[j];
sum += z*z;
}
}
if(average_frames)
sum /= inputs->n_frames;
if(average_frame_size)
sum /= inputs->frame_size;
internal_error += sum;
}
void MSEMeasurer::measureIteration()
{
if(average_examples)
internal_error /= data->n_examples;
if(binary_mode)
file->write(&internal_error, sizeof(real), 1);
else
file->printf("%g\n", internal_error);
file->flush();
reset();
}
void MSEMeasurer::reset()
{
internal_error = 0;
}
MSEMeasurer::~MSEMeasurer()
{
}
}
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