Evaluate the Health of LinkedIn's Newsfeed
Context
You are assessing the health of LinkedIn's Newsfeed (the personalized, scrollable list of posts). Assume you can track user-, session-, and impression-level events (e.g., views, dwell time, reactions, comments, shares, hides, ad impressions), survey feedback, and revenue from feed ads. The goal is to monitor health, separate transient spikes from durable improvements, attribute changes to product updates, and optimize for long-term member value.
Questions
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Metrics: Which engagement and revenue metrics would you track at daily and monthly granularity?
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Signal Quality: How would you distinguish short-term engagement spikes from sustainable quality improvements?
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Causality: Design an analysis to attribute specific feed changes to metric movements.
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Trade-offs: How would you balance time-spent with user satisfaction and long-term retention?