public Normalizer(DocumentVectorCollection documents)
{
lengths = new NormalizedVector("DocumentVectorLengths");
vectors = new NormalizedVectorCollection();
foreach (KeyValuePair <string, DocumentVector> kvp in documents)
{
String id = kvp.Key;
NormalizedVector vec = Normalize(id, kvp.Value);
vectors.Add(vec);
}
}
public Normalizer(DocumentVectorCollection documents)
{
lengths = new NormalizedVector("DocumentVectorLengths");
vectors = new NormalizedVectorCollection();
foreach (KeyValuePair<string, DocumentVector> kvp in documents)
{
String id = kvp.Key;
NormalizedVector vec = Normalize(id, kvp.Value);
vectors.Add(vec);
}
}
public static NormalizedVectorCollection Compute(NormalizedVectorCollection tf, NormalizedVector idf)
{
NormalizedVectorCollection tfidf = new NormalizedVectorCollection();
foreach (KeyValuePair <string, NormalizedVector> doc in tf)
{
NormalizedVector vec = new NormalizedVector(doc.Key);
foreach (KeyValuePair <string, double> term in doc.Value)
{
vec.Add(term.Key, term.Value * idf[term.Key]);
}
tfidf.Add(vec);
}
return(tfidf);
}
public static NormalizedVectorCollection Compute(NormalizedVectorCollection tf, NormalizedVector idf)
{
NormalizedVectorCollection tfidf = new NormalizedVectorCollection();
foreach (KeyValuePair<string, NormalizedVector> doc in tf)
{
NormalizedVector vec = new NormalizedVector(doc.Key);
foreach (KeyValuePair<string, double> term in doc.Value)
{
vec.Add(term.Key, term.Value * idf[term.Key]);
}
tfidf.Add(vec);
}
return tfidf;
}
