public RocchioForm()
{
InitializeComponent();
indexer = Indexer.Instance;
rocchio = RocchioAugmenter.Instance;
webSearcher = new WebSearcher();
for (int i = 1; i < 3; i++)
{
comboBoxNum.Items.Add(i * 10);
}
}
public void IndexDocuments(List <Document> documents)
{
foreach (var doc in documents)
{
doc.TfWeights = new Dictionary <string, int>() as Dictionary <string, int>;
string bodyContent = new WebSearcher().GetBodyContentFromUrl(doc.Url);
doc.BodyContent = bodyContent != null ? bodyContent : doc.Summary;
List <string> terms = new List <string>();
string[] tokens = doc.BodyContent.Split(delimiters, StringSplitOptions.RemoveEmptyEntries);
for (int i = 0; i < tokens.Length; i++)
{
tokens[i] = tokens[i].ToLower();
if (String.IsNullOrWhiteSpace(tokens[i]) || tokens[i].Length < 2 || tokens[i].Length > 12 || tokens[i].All(char.IsDigit) || !tokens[i].All(char.IsLetterOrDigit))
{
continue;
}
terms.Add(tokens[i]);
if (!termFrequencies.ContainsKey(tokens[i]))
{
termFrequencies.Add(tokens[i], 1);
}
else
{
termFrequencies[tokens[i]]++;
}
if (!invertedIndex.ContainsKey(tokens[i]))
{
invertedIndex[tokens[i]] = new Dictionary <int, List <int> >() as Dictionary <int, List <int> >;
}
if (!invertedIndex[tokens[i]].ContainsKey(doc.Id))
{
invertedIndex[tokens[i]][doc.Id] = new List <int>() as List <int>;
}
invertedIndex[tokens[i]][doc.Id].Add(i);
if (!doc.TfWeights.ContainsKey(tokens[i]))
{
doc.TfWeights.Add(tokens[i], 0);
}
doc.TfWeights[tokens[i]]++;
}
}
}