biproportional

English

Etymology

bi- + proportional

Adjective

biproportional (not comparable)

  1. (mathematics) Providing two-way proportionality.
    • 2016, Jean Brossard, Christophe Leuridan, “Iterated proportional fitting procedure and infinite products of stochastic matrices”, in arXiv:
      Given a rectangular non-negative matrix and two positive marginals and , the algorithm generates a sequence of matrices starting at , supposed to converge to a biproportional fitting, that is, to a matrix whose marginals are and and of the form , for some diagonal matrices and with positive diagonal entries. When a biproportional fitting does exist, it is unique and the sequence converges to it at an at least geometric rate.
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