I dont mean some MCDM ranking methods because we have to put the weights for criteria in MCDM. I am wondering is there any ranking method base on the preference input. For example: we have 10 people give their preferences on 3 items I1, I2, I3. The format of the preference will be :

 P1: I1<I3<I2... 
 P2: I1<I2<I3
 P10: I3<I1<I2

And the output after applying a ranking method will be


There are some methods that you can use: Borda Count and Condorcet Method are two popular ones.


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