There are multiple definitions:

1. loss-of-function [mutation](English)

   • aka LoF
   • GOF, PID, PPARG, WAT
   • Genetics
   • https://doi.org….ai.2018.02.003

2. local outlier factor(English)

   • OE
   • Statistics
   • https://doi.org…OC.2021.3052449