public void JaccardDistanceTest()
{
JaccardDistance dist = new JaccardDistance();
//Assert.Throws<ArgumentException>(() => dist.GetDistance(p0, q4));
double result = dist.GetDistance(p0, q0);
Assert.AreEqual(result, 1);
result = dist.GetDistance(p1, q1);
Assert.AreEqual(result, 1);
result = dist.GetDistance(p2, q2);
Assert.AreEqual(result, 0);
result = dist.GetDistance(p3, q3);
Assert.AreEqual(result, 0);
result = dist.GetDistance(p4, q4);
Assert.AreEqual(result, 0.66666, 0.00001);
result = dist.GetDistance(p5, q5);
Assert.AreEqual(result, 0.9, 0.1);
}
/// <summary>
/// Checks if the user question matches the current question pulled from quizlet
/// </summary>
/// <returns></returns>
public FoundTypeWithPercent Matches()
{
if (FoundTypeWithPercent.foundType == FoundType.NEVER_SET)
{
JaccardDistance jaccardDistance = new JaccardDistance();
decimal d = jaccardDistance.Distance(Question, UserEnterQuestion);
if (d == 100)
{
FoundTypeWithPercent.foundType = FoundType.CORRECT;
FoundTypeWithPercent.Percent = 100;
}
else if (d >= 50)
{
FoundTypeWithPercent.foundType = FoundType.POSSIBLE;
FoundTypeWithPercent.Percent = d;
}
else
{
FoundTypeWithPercent.foundType = FoundType.NONE;
}
}
return(FoundTypeWithPercent);
}
public static void TestJaccard()
{
string fn1 = "stree";
string fn2 = "street";
string fn3 = "steere";
JaccardDistance jd = new JaccardDistance(2);
double x = jd.GetDistanceFast(fn1, fn2);
double y = jd.GetDistanceFast(fn1, fn3);
double z = 1;
}
/// <summary>
/// JaccardDistance calculation to determine
/// matching similar responses
/// </summary>
/// <param name="input"></param>
/// <param name="memory"></param>
/// <returns></returns>
protected double calculateMatchRateJ(ArrayList input, ArrayList memory)
{
// instantiate new distance class
JaccardDistance dist = new JaccardDistance();
// create two vectors for inputs
//double[] p = new double[] { 2.5, 3.5, 3.0, 3.5, 2.5, 3.0 };
double[] p = DigitizePhonemes(input);
//double[] q = new double[] { 3.0, 3.5, 1.5, 5.0, 3.5, 3.0 };
double[] q = DigitizePhonemes(memory);
List <double> q1 = EqualizeVector(p, q);
double[] q2 = q1.ToArray();
// get distance between the two vectors
double distance = dist.GetDistance(p, q2);
return(distance);
}
