Estimate the identity graph's precision and recall without ground truth
Metric designHardProblem. Leadership wants the identity graph's precision (share of links that are correct) and recall (share of true same-person pairs that are linked) reported every month. Nobody has a complete list of which records truly belong to the same person. How would you estimate both?
Before you reveal: say your answer out loud, as if you were in the real interview — get your reasoning across clearly first. There is no single correct answer: reading what the interviewer is really after and defending your own thinking is what makes an answer strong.