public double TFIDFSimilarity(Document <T> query, Corpus <T> corpus)
{
double[] queryWeights = corpus.Select(term => query.TFIDF(term, corpus)).ToArray();
double[] documentWeights = corpus.Select(term => TFIDF(term, corpus)).ToArray();
var vectorSpaceModel = new VectorSpaceModel(queryWeights, documentWeights);
return(vectorSpaceModel.CalculateCosineSimilarity());
}
public double AugumentedSimilarity(Document <T> query, IList <Document <T> > corpus)
{
List <T> vocabulary = corpus.SelectMany(term => term).Distinct().ToList();
double[] queryWeights = vocabulary.Select(query.AugmentedTermFrequency).ToArray();
double[] documentWeights = vocabulary.Select(AugmentedTermFrequency).ToArray();
var vectorSpaceModel = new VectorSpaceModel(queryWeights, documentWeights);
return(vectorSpaceModel.CalculateCosineSimilarity());
}