Ask HN: how do the "Top charts" and "Most popular" algorithms work?

Posted by Straubiz on Monday September 26, 2011 @11:10AM
from the ask-hn dept.

Does anyone know what are the "top charts" & "most popular" ranking algorithms on the appstore? Is it based on the number of downloads, reviews, ratings?

( 3 comments | 10 points | on HN )

Re:Ask HN: how do the "Top charts" and "Most popular" algori... by js4all on Monday September 26, 2011 @05:56PM (#3040910)

These lists are done using a selection algorithm. For instance Sort-Key-Top: http://cpansearch.perl.org/src/SALVA/Sort-Key-Top-0.06/READM...

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Re:Ask HN: how do the "Top charts" and "Most popular" algori... by runjake on Monday September 26, 2011 @12:43PM (#3039669)

It depends on the vendor. I believe that "most popular" algorithms are usually based around time vs. downloads (as opposed to the more flawed # of downloads only).

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Re:Ask HN: how do the "Top charts" and "Most popular" algori... by Straubiz on Monday September 26, 2011 @01:06PM (#3039774)

Sorry my question wasn't precise enough: I was referring to the algorithms of the iOS Appstore.

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