author = {Held, Jan and Vandeghen, Renaud and Deliege, Adrien and Hamdi, Abdullah and Cioppa, Anthony and Giancola, Silvio and Vedaldi, Andrea and Ghanem, Bernard and Tagliasacchi, Andrea and Van Droogenbroeck, Marc},
while on arxiv and the top of the page
Jan Held, Renaud Vandeghen, Adrien Deliege, Abdullah Hamdi, Silvio Giancola, Anthony Cioppa, Andrea Vedaldi, Bernard Ghanem, Andrea Tagliasacchi, Marc Van Droogenbroeck
the first one is SURNAME, NAME separated by "and"
the second one is NAME SURNAME separated by commas
The second one is easier to read by humans, but the first one makes it clearer what is the surname (which would be ambiguous otherwise, when there are composite names). But then again, the first format breaks when someone has "and" in their name, which is not unheard of.
As it stands, it certainly does not resemble readable or parseable english.
‘Better’ formats have been proposed but none have stuck nearly as well. It works, and there’s tooling for it.
Names are ordered from general/family to specific/given.
author = {surname 1, first name 1 and surname 2, first name 2 and ...}
"and" is the separator.