private static double GetDifference(string word1, string word2, StringDistanceAlgorithm algorithm, bool exportAsSimilarity, KashefiConfig kashefiConfig)
{
double distance = -1;
StringDistanceAlgorithms.ExportResultAsSimilarity = exportAsSimilarity;
if (algorithm == StringDistanceAlgorithm.Hamming)
{
distance = StringDistanceAlgorithms.Hamming(word1, word2);
}
else if (algorithm == StringDistanceAlgorithm.Levenestain)
{
distance = StringDistanceAlgorithms.Levenstein(word1, word2);
}
else if (algorithm == StringDistanceAlgorithm.GNULevenesain)
{
distance = StringDistanceAlgorithms.GNULevenstein(word1, word2);
}
else if (algorithm == StringDistanceAlgorithm.Kashefi)
{
distance = StringDistanceAlgorithms.KashefiMeasure(word1, word2, kashefiConfig);
}
else if (algorithm == StringDistanceAlgorithm.Needleman)
{
double nGapCost = (kashefiConfig.DeleteGapCost + kashefiConfig.InsertGapCost) / 2.0;
NeedlemanConfig nc = new NeedlemanConfig(kashefiConfig.Keyboard, nGapCost, kashefiConfig.SubstituteGapCost);
distance = StringDistanceAlgorithms.NeedlemanWunch(word1, word2, nc);
}
else if (algorithm == StringDistanceAlgorithm.JaroWinkler)
{
distance = StringDistanceAlgorithms.JaroWinckler(word1, word2);
}
else if (algorithm == StringDistanceAlgorithm.Cosine)
{
distance = StringDistanceAlgorithms.Cosine(word1, word2);
}
else if (algorithm == StringDistanceAlgorithm.DamerauLevenestain)
{
distance = StringDistanceAlgorithms.DamerauLevenstein(word1, word2);
}
else if (algorithm == StringDistanceAlgorithm.WagnerFischer)
{
distance = StringDistanceAlgorithms.WagnerFischer(word1, word2);
}
return(distance);
}
///<summary>
/// Get Similarity Score
///</summary>
///<param name="word1">First Word</param>
///<param name="word2">Second Word</param>
///<param name="algorithm">String Distance Algorithm</param>
///<param name="kashefiConfig">Configuration of Kashefi's String Distance Method</param>
///<returns>Similarity Score</returns>
public double GetWordSimilarity(string word1, string word2, StringDistanceAlgorithm algorithm, KashefiConfig kashefiConfig)
{
return(GetDifference(word1, word2, algorithm, true, kashefiConfig));
}
///<summary>
/// Get String Distance
///</summary>
///<param name="word1">First Word</param>
///<param name="word2">Second Word</param>
///<param name="algorithm">String Distance Algorithm</param>
///<param name="kashefiConfig">Configuration of Kashefi's String Distance Method</param>
///<returns>String Distance</returns>
public double GetStringDistance(string word1, string word2, StringDistanceAlgorithm algorithm, KashefiConfig kashefiConfig)
{
return(GetDifference(word1, word2, algorithm, false, kashefiConfig));
}
