private void buttonLoadModel_Click(object sender, EventArgs e)
{
if (modelFolderDialog.ShowDialog() == DialogResult.OK)
{
var path = modelFolderDialog.SelectedPath;
Parameter = path.Import<Parameter>();
LDAModel = path.Import<LDAModel>();
ModelHelper.ImportVoca(path);
UpdateTopicGridView();
}
}
public void UpdateTopicModel(LDAModel model, Parameter parameter, int topWordCount = 5)
{
_ldaModel = model;
_parameter = parameter;
_topWordCount = topWordCount;
var topicCount = _parameter.TopicCount;
// extract top words from each topic
_topicTopWordDist = new List<List<Tuple<int, double>>>(topicCount);
foreach (var topicId in Enumerable.Range(0, _parameter.TopicCount))
{
_topicTopWordDist.Add(
model.Phi[topicId]
.Select((elem, idx) => new Tuple<int, double>(idx, elem))
.OrderByDescending(e => e.Item2)
.Take(_topWordCount)
.ToList());
}
// extract top word set
_topWordSet = new HashSet<int>(_topicTopWordDist
.SelectMany(e => e.Select(t => t.Item1))
.Distinct()
.OrderBy(e => e));
// resize
var startX = 160;
var startY = 160;
var len = 30;
var width = len * (topicCount - 1);
var height = len * (_topWordSet.Count - 1);
var totalWidth = startX + width + 50;
var totalHeight = startY + height + 50;
Width = totalWidth;
Height = totalHeight;
}
public LDA(Parameter parameters)
{
_parameter = parameters;
_ldaModel = new LDAModel(_parameter);
}
