public training(int lang_id, int category_id, string langauge, string stemming, bool addtur, int n, bool punctuation, int nov)
{
_cr = new classifier(langauge, stemming, addtur, n, punctuation, nov);//classifier hazır
_category_sentence_count = new Dictionary <int, int>();
all_sentence_count = 0;
word_dic _wd = new word_dic();
comment _c = new comment();
DataTable _dt = _c.select_comment(lang_id.ToString(), category_id.ToString());
int id = 1;
int yuzde50 = _dt.Rows.Count / 2;
foreach (DataRow row in _dt.Rows) // Loop over the rows.
{
var type = row[0];
string _sentence = row[1].ToString().ToLower();
int _type = Convert.ToInt32(type);
_cr.AddSentenceforTraining(_sentence, _type);
AddASentence(_type);//kategorideki cümle sayısı
all_sentence_count++;
id++;
if (id == yuzde50)
{
break;
}
}
}
public classifier(string _langauge, string _stemming, bool _addtur, int _n, bool _punctuation, int _nov)
{
_cat_dic = new Dictionary <int, catDictionary>();
_wd = new word_dic();
language = _langauge;
stemming = _stemming;
addtur = _addtur;
n = _n;
punctuation = _punctuation;
nov = _nov;
}
public int[,] ConfusionMatrix(int lang_id, int category_id)
{
int[,] _cm = new int[_cat_dic.Count, _cat_dic.Count];
for (int x = 0; x < _cat_dic.Count; x++)
{
for (int y = 0; y < _cat_dic.Count; y++)
{
_cm[x, y] = 0;
}
}
Hashtable _categoriler = new Hashtable();
int i = 0;
foreach (var _cat in _cat_dic)
{
_categoriler.Add((int)_cat.Key, i);
i++;
}
word_dic _wd = new word_dic();
comment _c = new comment();
DataTable _dt = _c.select_comment(lang_id.ToString(), category_id.ToString());
int id = 1;
foreach (DataRow row in _dt.Rows) // Loop over the rows.
{
var type = row[0];
string _sentence = row[1].ToString().ToLower();
int _type = Convert.ToInt32(type);
int x = (int)_categoriler[_type];
int y = (int)_categoriler[Estimate_Category(_sentence)];
_cm[x, y]++;
id++;
}
return(_cm);
}
public void CalculateScore(string _sentence)
{
_cat_score = new Dictionary <int, double>();
word_dic _new_wd = new word_dic();
_new_wd.update_hashtables(_sentence, 0, language, stemming, addtur, n, punctuation, nov);
foreach (DictionaryEntry _word in _new_wd._words_in_sentence)
{
foreach (var _cat in _cat_dic)
{
catDictionary _cd = (catDictionary)_cat.Value;
double _countofword = Convert.ToDouble(_cd.Search((string)_word.Key));
double _totalWords = Convert.ToDouble(_cd.CountofWordsinCategory);
double _countofsentenceincat = (int)_category_sentence_count[(int)_cat.Key];
double _score = 0;
if (_countofword > 0)
{
_score = System.Math.Log(((double)_countofword + 1) / ((double)_totalWords + _all_sentence_count));
}
else
{
_score = 0;
}
if (!_cat_score.ContainsKey((int)_cat.Key))
{
_cat_score.Add((int)_cat.Key, _score + System.Math.Log((double)_countofsentenceincat / (double)_all_sentence_count));
}
else
{
_cat_score[(int)_cat.Key] = (double)_cat_score[(int)_cat.Key] + _score;
}
}
}
}
