public void TestDotProduct_DoubleArray()
{
var other = new[] { 0, 1.5, 2.0, 3.0 };
var instance = new SparseIntegerVector(new[] { 1, 2, 0, 0 });
var result = instance.DotProduct(other);
Assert.Equal(expected: 3.0, actual: result);
}
public void TestDotProduct()
{
var other = new SparseIntegerVector(new[] { 0, 2, 0, 1 });
var instance = new SparseIntegerVector(new[] { 1, 2, 1, 0 });
var result = instance.DotProduct(other);
Assert.Equal(expected: 4.0, actual: result);
}
public void TestCosineSimilarity()
{
var other = new SparseIntegerVector(new[] { 0, 1, 2, 3 });
var instance = new SparseIntegerVector(new[] { 1, 2, 0, 0 });
var expectedResult = instance.DotProduct(other) / (instance.Norm() * other.Norm());
var result = instance.CosineSimilarity(other);
Assert.Equal(expected: expectedResult, actual: result);
}
