News sentiment history of TWITTER
Sentiment: Sentiment scores are a measure of bullishness and bearishness of equity prices calculated as statistical index of positivity and negitivity of news corpus. Scores are defined on a scale of -5 to 5 where -5 and 5 are extremely bearish and bullish indicators respectively.
Buzz: Buzz scores are normalized values of change in standard deviations of periodic news volume. Buzz scores reflect a sharp change in news volume thus serving as a risk alert indicator. Defined on a scale of 1-10 high buzz score reflects higher volatility.