public double ComputeCosineSimilarity(double[] compositeVector, double[] comparedVector, int current, int total)
{
var percentageFinished = ComputePercentageFinished(current, total);
_hubContext.Clients.All.percentageFinishedClient(percentageFinished);
return(Math.Round(_cs.GetSimilarityScore(compositeVector, comparedVector), 5));
}
public void CosineSimilarityTest( )
{
CosineSimilarity sim = new CosineSimilarity( );
Assert.Throws <ArgumentException>(() => sim.GetSimilarityScore(p0, q4));
double result = sim.GetSimilarityScore(p0, q0);
Assert.AreApproximatelyEqual(result, .8, 0.00001);
result = sim.GetSimilarityScore(p1, q1);
Assert.AreApproximatelyEqual(result, 0.97014, 0.00001);
result = sim.GetSimilarityScore(p2, q2);
Assert.AreEqual(result, 0);
result = sim.GetSimilarityScore(p3, q3);
Assert.AreApproximatelyEqual(result, 1, 0.00001);
result = sim.GetSimilarityScore(p4, q4);
Assert.AreApproximatelyEqual(result, 0.96065, 0.00001);
result = sim.GetSimilarityScore(p5, q5);
Assert.AreApproximatelyEqual(result, 0.96897, 0.00001);
}
public void CosineSimilarityTest()
{
CosineSimilarity sim = new CosineSimilarity();
// TODO: Re-enable argument checking only for debugging
// Assert.Throws<ArgumentException>(() => sim.GetSimilarityScore(p0, q4));
double result = sim.GetSimilarityScore(p0, q0);
Assert.AreEqual(result, .8, 0.00001);
result = sim.GetSimilarityScore(p1, q1);
Assert.AreEqual(result, 0.97014, 0.00001);
result = sim.GetSimilarityScore(p2, q2);
Assert.AreEqual(result, 0);
result = sim.GetSimilarityScore(p3, q3);
Assert.AreEqual(result, 1, 0.00001);
result = sim.GetSimilarityScore(p4, q4);
Assert.AreEqual(result, 0.96065, 0.00001);
result = sim.GetSimilarityScore(p5, q5);
Assert.AreEqual(result, 0.96897, 0.00001);
}
public double GetDistance(double[] p, double[] q)
{
CosineSimilarity cosineSimilarity = new CosineSimilarity();
return(1.0 - cosineSimilarity.GetSimilarityScore(p, q));
}
public float GetCosineDistance(float[] vector1, float[] vector2)
{
return((float)sim.GetSimilarityScore(vector1.Select(x => (double)x).ToArray(), vector2.Select(x => (double)x).ToArray()));
}
