Liang Mi Azadeh Sheikholeslami José Bento 0001 A family of pairwise multi-marginal optimal transports that define a generalized metric. 353-384 2023 January 112 Mach. Learn. 1 https://doi.org/10.1007/s10994-022-06280-y db/journals/ml/ml112.html#MiSB23