public void AddDocumentIndex(DocumentIndex index, int weight )
{
if ( !HasDocument(index.DocumentName) )
DocumentNodeList.Add(index.DocumentName, 0);
DocumentNodeList[index.DocumentName]+=weight;
TotalTermFrequency+=weight; //used to calculate TFIDF in a quick manner
}
//adds a word with document specific information
public void Add(String word, DocumentIndex? index, int weight )
{
if (word.Length == 0)
{
if (LeafNode == null)
LeafNode = new SuffixLeafNode();
if (index != null)
LeafNode.AddDocumentIndex(index.Value,weight);
return;
}
char c = Char.ToLower(word[0]);
SuffixNode node = Neighbours[SuffixNode.MapToIndex(c)];
if (node == null)
{
Neighbours[SuffixNode.MapToIndex(c)] = new SuffixNode(c);
node = Neighbours[SuffixNode.MapToIndex(c)];
}
node.Add(word.Substring(1),index,weight);
}