Two researchers at HP Labs have established that they can use Tweets to predict how well a movie will do.

They built a computer model that factored in the rate of tweets around the release date and the number of theaters, Fast Company said. That model was 97.3% accurate, compared to the Hollywood Stock Exchange, which had a 96.5% accuracy. For the second-weekend performance, the authors built a ratio of positive tweets to negative ones, which they blended with the Tweet rate metric in another prediction algorithm. “This time, the method was 94% accurate.”