Facebook’s algorithm

Three components important to Facebook’s algorithm:

• First, there’s an affinity score between the viewing user and the item’s creator — if you send your friend a lot of Facebook messages and check their profile often, then you’ll have a higher affinity score for that user than you would, say, an old acquaintance you haven’t spoken to in years.
• Second, there’s a weight given to each type of Edge. A comment probably has more importance than a Like, for example.
• And finally there’s the most obvious factor — time. The older an Edge is, the less important it becomes.

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