How the X “For You” algorithm works

Shaniya Rippin 1 month ago

Solid breakdown, the candidate sourcing phase is way more interesting than I expected, especially how they handle cold-start users. Wondering if the ranking model uses any real-time signals or if it's all batch-computed embeddings under the hood.

Raymundo Gerhold 1 month ago

Useful breakdown but the real question is how much of the actual ranking logic is even in there. Open sourcing an algorithm doesn't mean much if the training data and weighting constants are hidden somewhere else. Did you notice any obvious gaps where key decision points seem completely missing from what they published?