General Method to Unravel Ancient Population Structures through Surnames, Final Validation on Italian Data

摘要: Abstract We analyze the geographic location of 77,451 different Italian surnames (17,579,891 individuals) obtained from lists telephone subscribers year 1993. By using a specific neural network analysis (Self-Organizing Maps, SOMs), we automatically identify origin 49,117 surnames. To validate methodology, compare results to study, previously conducted, on same database, with accurate supervised methods. comparing results, find an overlap 97%, meaning that SOMs methodology is highly reliable and well traces back at time their introduction (Late Middle Ages/Renaissance in Italy). enables one distinguish monophyletic polyphyletic ones, having had single historic those started be use, identical spelling, locations (respectively, 76.06% 21.05% total). As are interested ge...