I can't say specifically which algorithms are run on it, but GDELT runs sentiment analysis (https://en.wikipedia.org/wiki/Sentiment_analysis https://en.wikipedi

I can't say specifically which algorithms are run on it, but GDELT runs sentiment analysis (https://en.wikipedia.org/wiki/Sentiment_analysis https://en.wikipedia.org/wiki/Sentiment_analysis) on each article, and they have a new data set called GKG which is all about emotion mining.