The essence of LDA is word co-occurrence. I want to know why? and does word co-occurrence mean two words appear together in a certain document or just appear in the documents collection together?

Thank you all in advance.

  • 1
    $\begingroup$ Have you have a look at this: stats.stackexchange.com/a/32350/7744 $\endgroup$
    – Ben
    Commented Mar 16, 2014 at 5:11
  • $\begingroup$ Perhaps this quote will shed more light. "You shall know a word by the company it keeps" Firth, J. R. $\endgroup$ Commented Feb 23, 2016 at 19:07


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