Apply heuristics and filters

• Visibility Filtering: Remove tweets from accounts you block or mute. 
• Author Diversity: Avoid too many consecutive tweets from a single author.
• Content Balance: Deliver a fair balance of In-Network and Out-of-Network tweets.
• Feedback-based Fatigue: Lower the score of tweets that you provided negative feedback around.
• Social Proof: Exclude Out-of-Network tweets without a second degree connection to the tweet i.e. ensure someone you follow engaged with the tweet or follows the tweet’s author.
• Conversations: Provide more context to a Reply by threading it together with the original tweet.

Gets the best 1,500 recent tweets:

• 50% from people you follow (In-Network)
• 50% from people you don't follow (Out-of-Network)

In-Network

• Uses a logistic regression model to rank the recent tweets of people you follow. The higher the likeli...