Why F1 Is the Wrong Objective for Entity Resolution Thresholds in Corporate Data

Most entity resolution pipelines are tuned to maximize F1. For corporate data, that is the wrong objective. F1 treats false positives and false negatives as equally costly. In practice they are not even close. A false negative in corporate ER means you have two records that refer to the same company — a redundancy you can fix later by rerunning the pipeline with updated parameters. A false positive means you merged two distinct companies into one entity. Every query that touches that node now…