Don't forget the need to filter for bias. Many many moons ago, when Google's ATS was young, they didn't weight scores based on the interviewer. After some incre

Don't forget the need to filter for bias. Many many moons ago, when Google's ATS was young, they didn't weight scores based on the interviewer. After some incredibly confusing low scores and some obviously bad hires, it was determined that there was a need to account for internal bias. That lead to applying weights to the interviewer's score because you still needed them to interview but you also knew that you couldn't trust them outright. More interviewers, more data points and better selection even with accounting for bias.