private void algorithmChange(object sender, EventArgs e)
{
RadioButton myRadio = (RadioButton)sender;
// get the last char of the name as radioButton0,1,...
// and then convert it to integer, and save it as algorithm
int algoritghmIndex = myRadio.Name[myRadio.Name.Length - 1] - '0';
selectedAlgorithm = (AlgorithmBox)algoritghmIndex;
}
AlgorithmBox selectedAlgorithm; // Selected Algorithm to Test
public FrameworkForm()
{
InitializeComponent();
// Writing the Radio Options
algorithmRadio0.Text = AlgorithmBox.LCS.ToString();
algorithmRadio1.Text = AlgorithmBox.Levenshtein.ToString();
algorithmRadio2.Text = AlgorithmBox.Jaro.ToString();
algorithmRadio3.Text = AlgorithmBox.JaroWinker.ToString();
algorithmRadio4.Text = AlgorithmBox.BiGram.ToString();
algorithmRadio5.Text = AlgorithmBox.TFIDF.ToString();
// global variable initilization
phrasePower = new Dictionary <string, int>();
selectedAlgorithm = AlgorithmBox.LCS;
saveAddress = "";
}
/// <summary>
/// this calcuate the shown statics for each algorithm
/// </summary>
/// <param name="hams">list of ham files </param>
/// <param name="spams">list of spam files </param>
/// <param name="algorithm"></param>
/// <returns></returns>
staticSet calculateStatics(string[] hams, string[] spams, AlgorithmBox algorithm)
{
staticSet myStatics = new staticSet(0);
int hamScores = 0;
int spamScores = 0;
myStatics.totalham = (float)hamNumber.Value;
myStatics.totalspam = (float)spamNumber.Value;
progressBar.Value = 0;
progressBar.Maximum = (int)(myStatics.totalham + myStatics.totalspam);
DateTime tic = DateTime.Now;
Algorithm myAlgo = null;
switch (algorithm)
{
case AlgorithmBox.LCS:
myAlgo = new LCSWord();
break;
case AlgorithmBox.Levenshtein:
myAlgo = new Levenshtien();
break;
case AlgorithmBox.Jaro:
myAlgo = new Jaro();
break;
case AlgorithmBox.JaroWinker:
myAlgo = new JaroWinker();
break;
case AlgorithmBox.BiGram:
myAlgo = new BGram();
break;
default:
break;
}
// we need a conditon here
if (selectedAlgorithm == AlgorithmBox.TFIDF)
{
TFIDF myTFI = new TFIDF();
myTFI.Terms = phrasePower;
Loop(hams, hamNumber.Value, false, myTFI);
Loop(spams, spamNumber.Value, true, myTFI);
// the TFIDF runner
myTFI.run();
float threshold = ((float)thresholdValue.Value) / 100F;
myTFI.claculate(ref hamScores, ref spamScores, threshold);
}
else
{
// other runners
hamScores = Loop(hams, hamNumber.Value, myAlgo);
spamScores = Loop(spams, spamNumber.Value, myAlgo);
}
DateTime toc = DateTime.Now;
TimeSpan timeSpent = toc - tic;
// calculate the spent time , a simple timing mechanism
myStatics.time = (float)timeSpent.TotalSeconds;
if (myStatics.totalspam > 0)
{
// false negatives
myStatics.fnegatives = (myStatics.totalspam - spamScores) / myStatics.totalspam;
// spam recall
myStatics.spamrecall = spamScores / myStatics.totalspam;
// spam precision
myStatics.spamper = spamScores / (spamScores + (myStatics.totalham - hamScores));
}
if (myStatics.totalham > 0)
{
// false positives
myStatics.fpositives = (myStatics.totalham - hamScores) / myStatics.totalham;
}
if (myStatics.totalham > 0 || myStatics.totalspam > 0)
{
// accuracy
myStatics.accuracy = 1 - (((myStatics.totalspam - spamScores) + (myStatics.totalham - hamScores)) / (myStatics.totalham + myStatics.totalspam));
}
// Spam recall
return(myStatics);
}
