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2. Stromfront. https://www.stormfront.org/forum/
3. Vader sentiment analysis. https://github.com/cjhutto/vaderSentiment
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5. Agarwal, S., Sureka, A.: Applying social media intelligence for predicting and identifying on-line radicalization and civil unrest oriented threats. CoRR, abs/1511.06858 (2015)