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Browse - Programming Tips - What's a good way to decide what to cache?

Date: 2016mar15
Keywords: freecent, frecency, recent, frequent

Q.  What's a good way to decide what to cache?

A.  You can use frecency.

Frecency is any heuristic that combines the frequency and recency into a single measure.
https://en.wikipedia.org/wiki/Frecency

The Facebook newsfeed probably uses frecency to decide what to show too.
- Newer thing are favoured (recent)
- Things with lots of views/likes do well (that's the frequent)

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