protected weightTableTermCompiled GetCompiledTerm(IWeightTableTerm term)
{
weightTableTermCompiled cterm = new weightTableTermCompiled();
cterm.termName = term.nominalForm;
cterm.termInflections = term.GetAllForms(false).toCsvInLine();
cterm.df = GetBDFreq((string)term.name);
cterm.idf = GetIDF((string)term.name);
cterm.freqAbs = termsAFreq[term.name];
cterm.freqNorm = ((double)cterm.freqAbs / (double)max);
cterm.tf_idf = cterm.idf * cterm.freqNorm;
cterm.cw = cterm.weight;
cterm.ncw = cterm.weight / maxWeight;
return(cterm);
}
public virtual IWeightTableTerm Add(weightTableTermCompiled term)
{
if (term == null)
{
return(null);
}
var t = GetMatchTerm(term);
if (t == null)
{
t = new TWeightTableTerm();
t.name = term.name;
t.SetOtherForms(term.GetAllForms(false));
terms.TryAdd(term.name, t);
termsAFreq.TryAdd(term.name, term.AFreqPoints);
}
else
{
// if (DFPoints == -1) DFPoints = 0;
// if (DFPoints > 1) DFPoints--;
if (!termSingleAddAllowed)
{
//term.weight += term.weight;
//if (AFreqPoints == -1) AFreqPoints = 1;
termsAFreq[t.name] = termsAFreq[t.name] + term.AFreqPoints;
}
}
if (parent != null)
{
parent.Add(this, t, false);
}
InvokeChanged();
return(t);
}
/// <summary>
/// Generates a compiled version of TF-IDF table. <see cref="weightTableCompiled"/>
/// </summary>
/// <param name="loger">The loger - for diagnostics</param>
/// <returns></returns>
public weightTableCompiled GetCompiledTable(ILogBuilder loger = null)
{
weightTableCompiled output = new weightTableCompiled(name);
int ti = 0;
int ts = 10;
int c = 0;
int tc = Count();
int input_c = 0;
int output_c = 0;
double io_r = 0;
updateMaxValues();
foreach (IWeightTableTerm t in terms.Values)
{
double tp = ti.GetRatio(tc);
weightTableTermCompiled cterm = GetCompiledTerm(t); //output.Add(t, GetAFreq(t.nominalForm)) as weightTableTermCompiled;
output.AddOrUpdate(cterm);
if (c > 10)
{
c = 0;
io_r = input_c.GetRatio(output_c);
if (loger != null)
{
loger.AppendLine("TF-IDF [" + name + "] table compiled [" + tp.ToString("P2") + "]");
}
}
}
output.updateMaxValues();
return(output);
}
