/// <summary>
/// Instantiates an edit distance computer with the specified similarity
/// computation function and the specified insert/delete and move costs. Note
/// that no move operations are computed unless ComputeMoveOperations is set to
/// true (the default is false).
/// </summary>
/// <param name="similarityComputer">The item similarity computation method</param>
/// <param name="insertDeleteCosts">The costs of inserting/deleting an item</param>
/// <param name="moveCosts">The costs of moving an item. If >0, move operations will
/// be computed. Otherwise, no move operations will be computed. Move costs should be
/// between the insertion/deletion costs and two times the insertion/deletion costs.</param>
public EditDistanceComputer(SimilarityComputer <T> similarityComputer,
double insertDeleteCosts, double moveCosts)
{
_SimilarityComputer = similarityComputer;
if (insertDeleteCosts < 0.0d)
{
throw new ArgumentOutOfRangeException("Insert/delete costs must be larger than 0");
}
if (moveCosts < 0.0d)
{
throw new ArgumentOutOfRangeException("Move costs must be larger than 0");
}
_InsertDeleteCosts = insertDeleteCosts;
_MoveCosts = moveCosts;
_SimThreshold = 0.85d;
_ComputeMoveOperations = (moveCosts > 0.0d);
}
/// <summary>
/// Instantiates an edit distance computer with the specified similarity
/// computation function and the default insert/delete (1.0) costs, change
/// costs of 0.9, and zero move (0.0) costs (the latter meaning that no
/// move operations are computed).
/// </summary>
/// <param name="similarityComputer">The item similarity computation method</param>
public EditDistanceComputer(SimilarityComputer <T> similarityComputer)
: this(similarityComputer, 1.0d, 0.0d)
{
}
