private void GenerateFeatures(string temp, List<string> inputSentance, int pos)
{
string[] tags = temp.Split(new char[] { ':' });
if (tags.Length != 3)
{
throw new Exception(temp + " doesn't contain 3 tags");
}
var features = new Features(tags[0], tags[1], tags[2], inputSentance, pos);
foreach (var feature in features.GetFeatures())
{
if (DictFeaturesToK.ContainsKey(feature))
continue;
DictFeaturesToK.Add(feature, _featureCount++);
}
}
public float GetFeatureValue(string t2, string t1, string t, int pos, bool debug, out string debugStr)
{
var features = new Features(t2, t1, t, _sentence, pos);
float sum = 0;
debugStr = "@@";
foreach (var feature in features.GetFeatures())
{
float weight = WeightVector.Get(feature);
sum += weight;
if (debug)
{
debugStr += feature + "#" + weight.ToString(CultureInfo.InvariantCulture) + "%%";
}
}
debugStr += "@@";
return sum;
}
public IEnumerable<KeyValuePair<string, string>> NextFeature()
{
string t2 = "*", t1 = "*";
for (; _pos < _sentence.Count; _pos++)
{
var t = _tags[_pos];
if (_pos > 1)
{
t2 = _tags[_pos - 2];
t1 = _tags[_pos - 1];
}
else if (_pos == 1)
{
t1 = _tags[_pos - 1];
}
var features = new Features(t2, t1, t, _sentence, _pos);
foreach (var f in features.GetFeatures())
{
var pair = new KeyValuePair<string, string>(t, f);
yield return pair;
}
}
}