// to start the training
private void btnApply_Click(object sender, EventArgs e)
{
BackPropogation backPropogation = new BackPropogation();
targetOutput = new double[backPropogation.numOutput];
if (String.IsNullOrWhiteSpace(txtRate.Text))
{
eta = 0.01;
}
else
{
try
{
eta = Convert.ToDouble(txtRate.Text);
if (eta < 0 || eta > 1)
{
MessageBox.Show("Learning rate value must be between 0 and 1");
txtRate.Text = String.Empty;
txtRate.Focus();
return;
}
}
catch (Exception ee)
{
MessageBox.Show("Learning rate Error :" + ee.Message);
txtRate.Text = String.Empty;
txtRate.Focus();
return;
}
}
if (String.IsNullOrWhiteSpace(txtMomentum.Text))
{
alpha = 0.1;
}
else
{
try
{
alpha = Convert.ToDouble(txtMomentum.Text);
if (alpha < 0 || alpha > 1)
{
MessageBox.Show("Momentum value must be between 0 and 1");
txtMomentum.Text = String.Empty;
txtMomentum.Focus();
return;
}
}
catch (Exception ee)
{
MessageBox.Show("Momentum Error :" + ee.Message);
txtMomentum.Text = String.Empty;
txtMomentum.Focus();
return;
}
}
// To read the input data from the file strored at path specified
// with the timer control.
if (!String.IsNullOrEmpty(path))
{
sr = new StreamReader(File.OpenRead(path));
timer1.Interval = 300;
timer1.Start();
timer1.Tick += new EventHandler(timer1_Tick);
timer1.Enabled = true;
this.btnApply.Enabled = false;
btnImport.Enabled = false;
this.progressBar1.Visible = true;
lblProcess.Visible = true;
btnCancel.Enabled = true;
counter = 1;
}
//Read the data if entered manually
else
{
//To check the validity of inputs
try
{
userInputPorosity = Convert.ToDouble(txtPorosity.Text);
if (userInputPorosity < 0.0 || userInputPorosity > 65)
{
MessageBox.Show("Porosity value out of range. Check instant help field for more information.");
txtPorosity.Focus();
txtPorosity.Text = String.Empty;
return;
}
userInputPermeability = Convert.ToDouble(txtPermeability.Text);
if (userInputPermeability < 0.0 || userInputPermeability > 11500)
{
MessageBox.Show("Permeability value is not valid. Please check your input value");
txtPermeability.Focus();
txtPermeability.Text = String.Empty;
return;
}
if (convertedVlaueTemp == 0)
{
userInputTemperature = Convert.ToDouble(txtTemp.Text);
}
else
{
userInputTemperature = convertedVlaueTemp;
}
if (userInputTemperature < 0.0 || userInputTemperature > 290)
{
MessageBox.Show("Temperature value is not valid. Please check your input value");
txtTemp.Focus();
txtTemp.Text = String.Empty;
comboBox1.SelectedIndex = 0;
convertedVlaueTemp = 0;
return;
}
if (convertedValueDepth > 0)
{
userInputDepth = convertedValueDepth;
}
else
{
userInputDepth = Convert.ToDouble(txtDepth.Text);
}
if (userInputDepth < 0.0 || userInputDepth > 13750)
{
MessageBox.Show("Reservoir Depth value is not valid. Please check your input value");
txtDepth.Focus();
txtDepth.Text = String.Empty;
comboBox2.SelectedIndex = 0;
convertedValueDepth = 0;
return;
}
userInputOilGravity = Convert.ToDouble(txtGravity.Text);
if (userInputOilGravity < 0.0 || userInputOilGravity > 57)
{
MessageBox.Show("Oil Gravity value is not valid. Please check your input value");
txtGravity.Focus();
txtGravity.Text = String.Empty;
return;
}
userInputOilViscosity = Convert.ToDouble(txtViscosity.Text);
if (userInputOilViscosity < 0.0 || userInputOilViscosity > 200000)
{
MessageBox.Show("Oil viscosity value is not valid. Please check your input value");
txtViscosity.Focus();
txtViscosity.Text = String.Empty;
return;
}
userInputOilSaturation = Convert.ToDouble(txtOilSaturation.Text);
if (userInputOilSaturation < 0.0 || userInputOilSaturation > 98)
{
MessageBox.Show("Initial Oil Saturation value is not valid. Please check your input value");
txtOilSaturation.Focus();
txtOilSaturation.Text = String.Empty;
return;
}
}
catch (Exception ee)
{
MessageBox.Show("Error :" + ee.Message);
return;
}
//to check which output has been selected
if (radiosteam.Checked == true)
{
double[] result = { 1, 0, 0, 0, 0 };
targetOutput = result;
}
if (radioco2.Checked == true)
{
double[] result = { 0, 1, 0, 0, 0 };
targetOutput = result;
}
if (radiohydro.Checked == true)
{
double[] result = { 0, 0, 1, 0, 0 };
targetOutput = result;
}
if (radioinsitu.Checked == true)
{
double[] result = { 0, 0, 0, 1, 0 };
targetOutput = result;
}
if (radiopolymer.Checked == true)
{
double[] result = { 0, 0, 0, 0, 1 };
targetOutput = result;
}
//to check the validity of output
if (radioco2.Checked == false && radiohydro.Checked == false && radioinsitu.Checked == false &&
radiopolymer.Checked == false && radiosteam.Checked == false)
{
MessageBox.Show("No output has been selected. Output selection is must for training.");
}
// Artificial Neural Network processing
weights = backPropogation.ReadWeights();
backPropogation.SetWeight(weights);
userInput = backPropogation.NormalizeInput(userInputPorosity, userInputPermeability, userInputTemperature, userInputDepth, userInputOilGravity, userInputOilViscosity, userInputOilSaturation);
computedOutput = backPropogation.ComputeOutput(userInput);
double error = backPropogation.CalculateError(computedOutput, targetOutput);
int epoch = 0;
while (epoch < 10000 && error > 0.01)
{
backPropogation.UpdateWeights(targetOutput, eta, alpha);
computedOutput = backPropogation.ComputeOutput(userInput);
error = backPropogation.CalculateError(computedOutput, targetOutput);
epoch++;
}
txtIteration.Text = epoch.ToString();
txtError.Text = error.ToString();
double[] newWeights = backPropogation.GetWeights();
backPropogation.SetWeight(newWeights);
backPropogation.SaveWeights(newWeights);
}
}
// Timer tick event to handle the training data if it is done from a text file
void timer1_Tick(object sender, EventArgs e)
{
if (String.IsNullOrWhiteSpace(txtRate.Text))
{
eta = 0.01;
}
else
{
try
{
eta = Convert.ToDouble(txtRate.Text);
if (eta < 0 || eta > 1)
{
MessageBox.Show("Learning rate value must be between 0 and 1");
txtRate.Text = String.Empty;
txtRate.Focus();
return;
}
}
catch (Exception ee)
{
MessageBox.Show("Learning rate Error :" + ee.Message);
txtRate.Text = String.Empty;
txtRate.Focus();
return;
}
}
if (String.IsNullOrWhiteSpace(txtMomentum.Text))
{
alpha = 0.1;
}
else
{
try
{
alpha = Convert.ToDouble(txtMomentum.Text);
if (alpha < 0 || alpha > 1)
{
MessageBox.Show("Momentum value must be between 0 and 1");
txtMomentum.Text = String.Empty;
txtMomentum.Focus();
return;
}
}
catch (Exception ee)
{
MessageBox.Show("Momentum Error :" + ee.Message);
txtMomentum.Text = String.Empty;
txtMomentum.Focus();
return;
}
}
progressBar1.Style = ProgressBarStyle.Blocks;
progressBar1.Minimum = 1;
progressBar1.Maximum = countLines;
BackPropogation backPropogation = new BackPropogation();
targetOutput = new double[backPropogation.numOutput];
String line = sr.ReadLine();
// Stop the timer if all the inputs has been read
if (String.IsNullOrWhiteSpace(line))
{
timer1.Stop();
progressBar1.Visible = false;
lblProcess.Visible = false;
btnCancel.Enabled = false;
btnImport.Enabled = true;
counter = 1;
countLines = 0;
path = String.Empty;
MessageBox.Show("Training has been completed");
btnApply.Enabled = true;
txtPorosity.Text = String.Empty;
txtPermeability.Text = String.Empty;
txtDepth.Text = String.Empty;
txtGravity.Text = String.Empty;
txtOilSaturation.Text = String.Empty;
txtTemp.Text = String.Empty;
txtViscosity.Text = String.Empty;
txtIteration.Text = String.Empty;
txtError.Text = String.Empty;
radioco2.Checked = false;
radiohydro.Checked = false;
radioinsitu.Checked = false;
radiopolymer.Checked = false;
radiosteam.Checked = false;
}
// Do this till there is some data to be read in the file
else
{
// percentage += 100 / countLines;
//lblPercentCompleted.Text = percentage.ToString();
progressBar1.Value = counter;
int i = 1;
s1 = line.Split(',');
double[] inputArray = new double[0];
Int32[] outputArray = new Int32[0];
foreach (string s in s1)
{
// creating output array for training
if (i > 7)
{
Array.Resize(ref outputArray, outputArray.Length + 1);
outputArray[outputArray.Length - 1] = Convert.ToInt32(s);
i++;
}
// creating input array for training
else
{
Array.Resize(ref inputArray, inputArray.Length + 1);
inputArray[inputArray.Length - 1] = Convert.ToDouble(s);
i++;
}
}
// check the validty of input training data
try
{
txtPorosity.Text = inputArray[0].ToString();
userInputPorosity = Convert.ToDouble(txtPorosity.Text);
if (userInputPorosity < 0.0 || userInputPorosity > 65)
{
timer1.Stop();
progressBar1.Visible = false;
lblProcess.Visible = false;
btnApply.Enabled = true;
MessageBox.Show("Porosity value is not valid at line number " + counter + ". Check instant help field for more information.");
txtPorosity.Focus();
txtPorosity.Text = String.Empty;
return;
}
txtPermeability.Text = inputArray[1].ToString();
userInputPermeability = Convert.ToDouble(txtPermeability.Text);
if (userInputPermeability < 0.0 || userInputPermeability > 11500)
{
timer1.Stop();
progressBar1.Visible = false;
lblProcess.Visible = false;
btnApply.Enabled = true;
MessageBox.Show("Permeability value is not valid at line number" + counter + ". Please check your input value");
txtPermeability.Focus();
txtPermeability.Text = String.Empty;
return;
}
txtTemp.Text = inputArray[2].ToString();
userInputTemperature = Convert.ToDouble(txtTemp.Text);
if (userInputTemperature < 0.0 || userInputTemperature > 290)
{
timer1.Stop();
progressBar1.Visible = false;
lblProcess.Visible = false;
btnApply.Enabled = true;
MessageBox.Show("Temperature value is not valid at line number" + counter + ". Please check your input value");
txtTemp.Focus();
txtTemp.Text = String.Empty;
return;
}
txtDepth.Text = inputArray[3].ToString();
userInputDepth = Convert.ToDouble(txtDepth.Text);
if (userInputDepth < 0.0 || userInputDepth > 13750)
{
timer1.Stop();
progressBar1.Visible = false;
lblProcess.Visible = false;
btnApply.Enabled = true;
MessageBox.Show("Reservoir Depth value is not valid at line number" + counter + ". Please check your input value");
txtDepth.Focus();
txtDepth.Text = String.Empty;
return;
}
txtGravity.Text = inputArray[4].ToString();
userInputOilGravity = Convert.ToDouble(txtGravity.Text);
if (userInputOilGravity < 0.0 || userInputOilGravity > 57)
{
timer1.Stop();
progressBar1.Visible = false;
lblProcess.Visible = false;
btnApply.Enabled = true;
MessageBox.Show("Oil Gravity value is not valid at line number" + counter + ". Please check your input value");
txtGravity.Focus();
txtGravity.Text = String.Empty;
return;
}
txtViscosity.Text = inputArray[5].ToString();
userInputOilViscosity = Convert.ToDouble(txtViscosity.Text);
if (userInputOilViscosity < 0.0 || userInputOilViscosity > 200000)
{
timer1.Stop();
progressBar1.Visible = false;
lblProcess.Visible = false;
btnApply.Enabled = true;
MessageBox.Show("Oil viscosity value is not valid at line number" + counter + ". Please check your input value");
txtViscosity.Focus();
txtViscosity.Text = String.Empty;
return;
}
txtOilSaturation.Text = inputArray[6].ToString();
userInputOilSaturation = Convert.ToDouble(txtOilSaturation.Text);
if (userInputOilSaturation < 0.0 || userInputOilSaturation > 98)
{
timer1.Stop();
progressBar1.Visible = false;
lblProcess.Visible = false;
btnApply.Enabled = true;
MessageBox.Show("Initial Oil Saturation value is not valid at line number" + counter + ". Please check your input value");
txtOilSaturation.Focus();
txtOilSaturation.Text = String.Empty;
return;
}
}
catch (Exception ee)
{
timer1.Stop();
progressBar1.Visible = false;
lblProcess.Visible = false;
btnApply.Enabled = true;
MessageBox.Show("Error :" + ee.Message);
return;
}
if (outputArray[0] == 1)
{
radiosteam.Checked = true;
double[] result = { 1, 0, 0, 0, 0 };
targetOutput = result;
}
if (outputArray[1] == 1)
{
radioco2.Checked = true;
double[] result = { 0, 1, 0, 0, 0 };
targetOutput = result;
}
if (outputArray[2] == 1)
{
radiohydro.Checked = true;
double[] result = { 0, 0, 1, 0, 0 };
targetOutput = result;
}
if (outputArray[3] == 1)
{
radioinsitu.Checked = true;
double[] result = { 0, 0, 0, 1, 0 };
targetOutput = result;
}
if (outputArray[3] == 1)
{
radiopolymer.Checked = true;
double[] result = { 0, 0, 0, 1, 0 };
targetOutput = result;
}
// Artificial neural network processing
weights = backPropogation.ReadWeights();
backPropogation.SetWeight(weights);
userInput = backPropogation.NormalizeInput(userInputPorosity, userInputPermeability, userInputTemperature, userInputDepth, userInputOilGravity, userInputOilViscosity, userInputOilSaturation);
computedOutput = backPropogation.ComputeOutput(userInput);
double error = backPropogation.CalculateError(computedOutput, targetOutput);
int epoch = 0;
while (epoch < 10000 && error > 0.01)
{
backPropogation.UpdateWeights(targetOutput, eta, alpha);
computedOutput = backPropogation.ComputeOutput(userInput);
error = backPropogation.CalculateError(computedOutput, targetOutput);
epoch++;
}
txtIteration.Text = epoch.ToString();
txtError.Text = error.ToString();
double[] newWeights = backPropogation.GetWeights();
backPropogation.SaveWeights(newWeights);
counter++;
}
}
