public void TestHyperbolicSweetSpot()
{
SweetSpotSimilarity ss = new HyperbolicSweetSpotSimilarityHelper();
ss.SetHyperbolicTfFactors(3.3f, 7.7f, Math.E, 5.0f);
TFIDFSimilarity s = ss;
for (int i = 1; i <= 1000; i++)
{
assertTrue("MIN tf: i=" + i + " : s=" + s.Tf(i),
3.3f <= s.Tf(i));
assertTrue("MAX tf: i=" + i + " : s=" + s.Tf(i),
s.Tf(i) <= 7.7f);
}
assertEquals("MID tf", 3.3f + (7.7f - 3.3f) / 2.0f, s.Tf(5), 0.00001f);
// stupidity
assertEquals("tf zero", 0.0f, s.Tf(0), 0.0f);
}
public void TestHyperbolicSweetSpot()
{
SweetSpotSimilarity ss = new HyperbolicSweetSpotSimilarityHelper();
ss.SetHyperbolicTfFactors(3.3f, 7.7f, Math.E, 5.0f);
TFIDFSimilarity s = ss;
for (int i = 1; i <= 1000; i++)
{
assertTrue("MIN tf: i=" + i + " : s=" + s.Tf(i),
3.3f <= s.Tf(i));
assertTrue("MAX tf: i=" + i + " : s=" + s.Tf(i),
s.Tf(i) <= 7.7f);
}
assertEquals("MID tf", 3.3f + (7.7f - 3.3f) / 2.0f, s.Tf(5), 0.00001f);
// stupidity
assertEquals("tf zero", 0.0f, s.Tf(0), 0.0f);
}
