OneKeg;842793166 said:
..... I actually do not think the factors included in the RPI rankings are legitimate. Or rather, it is not legitimate to exclude the factors excluded by the RPI. Margin of victory, opponents' margin of victory, opponents' opponents' margin of victory are valuable pieces of information in aggregate and should not be thrown away as RPI does.
Margin of victory (MOV) was deliberately excluded from RPI to remove the incentive for good teams to run up the score. Unfortunately, MOV is an important predictor in statistical models, so RPI completely misses a valuable indicator of a team's strength.
I suspect that the components in the RPI formula are present in Pomeroy's and Sagarin's models. I.e., they are legitimate metrics. But they are weighted arbitrarily in the RPI formula.