Say I have a general topic I want to find tweets for on twitter. How should I gather a set of keywords relating to the general topic word to search for on twitter? I’ve been trying to find an established method of this keyword choosing (and not just randomly choose whatever keyword comes up to my head on the topic), but so far to no avail. Hopefully a method that has been used in a few ML papers for when their authors chose their keywords to find tweets for on twitter?

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Any help is appreciated!