Topic Modeling, Topic Noise Modeling, Unsupervised Learning, Twitter Data, Text Data.
data. Note: for domain-specific social media data, k should always be at least 20, and beta1 should be between 9 and 25. We like to use k = 30 and beta1 = 25 for Twitter, and beta1 = 9 or 16 for Reddit comments. We increase beta1 when data sets are noisier to try to keep more words in topics that