I wouldn't go that far, but worth reading - uses Snopes as dataset for identified rumors (not exhaustive but a good source)https://twitter.com/DegenRolf/status/831883217103896576 …
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but they have a methodology for matching tweets to articles - what does "won't work" means? recall is low but precision is good
Much rumor spreading, especially of the outright fake or misinformation kind, I see is screenshots. Not text.
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