text: Title: How to link data inside topic model to original training data without preprocessed?
  Body: I use bertopic in Chinese .
  So I must split the text to token and add space between every 2 tokens, and remove stopwords, and some special symbol, than I input the processed text into bertopic.
  And the problem is how can I link the document to the oringinal training data without preprocessed? if I use documents in the model, the data are tokens without stopwords etc., its s weired.
  except transform every text again？Somebody get better ideas?