Resampling Summarizer for Social Media
Simply resample the social stream, using the auto-summarization algorithm as resampling function.
Today, we have pretty good summarization algorithms for text (for example, sumy). The social network messages are simply rows of our database. Take equidistant time intervals, and summarize the text of many posts of the chatty people, as one post (in chosen intervals of time, e.g., daily), and leave those rarer posts unsummarised.
Many ideas on improving social media time-line sharing:
Apparently, someone's working on something related:: "Facebook will soon allow you to combine multiple posts into one story", or maybe they are following Infinity? Just apply LDA, such a simple thing to do.