Jaccard Index
The name may be an example of this: <a href="https://en.m.wikipedia.org/wiki/Stigler%27s_law_of_eponymy" rel="nofollow">https://en.m.wikipedia.org/wiki/Stigler%27s_law_of_eponymy</a><p><i>It was developed by Grove Karl Gilbert in 1884 as his ratio of verification (v)[1] and now is frequently referred to as the Critical Success Index in meteorology.[2] It was later developed independently by Paul Jaccard…</i>