短語(yǔ)詞組短語(yǔ)mean -square error norm 均方誤差範(fàn)數(shù)least mean -square error 最小均方差root -mean-square percent error 均方根百分誤差Root Mean -Square Percentage Error 方根百分比偏差relative root -mean-square error 相對(duì)均方誤差 返回 mean-square error