public Action <TextWriter> GetTopicSummaryWriter(VBuffer <ReadOnlyMemory <char> > mapping)
{
Action <TextWriter> writeAction;
if (mapping.Length == 0)
{
writeAction =
writer =>
{
for (int i = 0; i < _ldaTrainer.NumTopic; i++)
{
KeyValuePair <int, float>[] topicSummaryVector = _ldaTrainer.GetTopicSummary(i);
writer.Write("{0}\t{1}\t", i, topicSummaryVector.Length);
foreach (KeyValuePair <int, float> p in topicSummaryVector)
{
writer.Write("{0}:{1}\t", p.Key, p.Value);
}
writer.WriteLine();
}
};
}
else
{
writeAction =
writer =>
{
ReadOnlyMemory <char> slotName = default;
for (int i = 0; i < _ldaTrainer.NumTopic; i++)
{
KeyValuePair <int, float>[] topicSummaryVector = _ldaTrainer.GetTopicSummary(i);
writer.Write("{0}\t{1}\t", i, topicSummaryVector.Length);
foreach (KeyValuePair <int, float> p in topicSummaryVector)
{
mapping.GetItemOrDefault(p.Key, ref slotName);
writer.Write("{0}[{1}]:{2}\t", p.Key, slotName, p.Value);
}
writer.WriteLine();
}
};
}
return(writeAction);
}
internal KeyValuePair <int, float>[] DescribeTopic(int topicID)
{
return(_ldaTrainer.GetTopicSummary(topicID));
}