public MultiMapSet <string, string> GetTagsWithDocuments(HashSet <string> documents)
{
HashSet <string> relevant_tags = new HashSet <string>();
foreach (string document in documents)
{
relevant_tags.UnionWith(ai_documents_with_tags.Get(document));
}
MultiMapSet <string, string> results = new MultiMapSet <string, string>();
foreach (string relevant_tag in relevant_tags)
{
foreach (string relevant_document in ai_tags_with_documents.Get(relevant_tag))
{
if (documents.Contains(relevant_document))
{
results.Add(relevant_tag, relevant_document);
}
}
}
return(results);
}
public void Associate(string tag, string document_fingerprint)
{
ai_tags_with_documents.Add(tag, document_fingerprint);
ai_documents_with_tags.Add(document_fingerprint, tag);
}