Interesting in that it provides some real insight - confirming that "crash" and "frozen", etc are similar in app reviews is not interesting. Interesting topics

Interesting in that it provides some real insight - confirming that "crash" and "frozen", etc are similar in app reviews is not interesting. Interesting topics are more precise: people talking about the video being frozen or not playing is a singular topic, but given that video is used in so many other reviews, would not be detected as a topic using LDA.