Timeline for Defining "average rank" when not every ranking covers the whole set
Current License: CC BY-SA 2.5
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 21, 2010 at 5:13 | vote | accept | RexE | ||
| Feb 21, 2010 at 4:20 | comment | added | RexE | @John: not related to the Netflix Prize, although maybe there is something I can learn from that. | |
| Feb 21, 2010 at 4:14 | comment | added | john mangual | this is question related to the netflix prize? | |
| Feb 21, 2010 at 4:05 | answer | added | Suresh Venkat | timeline score: 5 | |
| Feb 21, 2010 at 4:04 | comment | added | user3035 | What is the final goal of this; i.e. what do you want your cumulative ranking to reflect? Depending on this, there are various possibilities. E.g. if you just want to get something that generally reflects the popularity of each movie, you can go with a trivial extension of what you do now. For each movie, just compute the fraction of people who ranked it 1st, 2nd, etc. -- the fraction is relative to the total number of people who ranked this movie. Then do something with this (take the average w.r.t. the fractions, or the mode, etc.) | |
| Feb 21, 2010 at 3:48 | comment | added | Tom Leinster | It's not a duplicate, but there's some relation to this question: mathoverflow.net/questions/6019/… | |
| Feb 21, 2010 at 3:18 | history | edited | RexE |
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| Feb 21, 2010 at 3:11 | history | asked | RexE | CC BY-SA 2.5 |