/// <summary>
/// Calculates the modified unigram precision score as described in section 2.1 of the paper.
/// </summary>
/// <param name="reference">The reference as a collector.</param>
/// <param name="candidate">The candidate as a collector.</param>
/// <returns>The Modified n-gram precision score.</returns>
public double ModifiedUnigramPrecision(ICollector <string> reference, ICollector <string> candidate)
{
var referenceDist = new FrequencyDistribution <string>(reference.Collect());
return(referenceDist.MostFrequentValue() / (double)candidate.Size());
}
