ott.solvers.quadratic.gw_barycenter.GWBarycenterState

class ott.solvers.quadratic.gw_barycenter.GWBarycenterState(cost=None, x=None, a=None, errors=None, costs=None, costs_bary=None, gw_convergence=None)

State of the GW barycenter problem.

Parameters:

• cost (Array | None) – Barycenter cost matrix of shape [bar_size, bar_size].

• x (Array | None) – Barycenter features of shape [bar_size, ndim_fused]. Only used in the fused case.

• a (Array | None) – Weights of the barycenter of shape [bar_size,].

• errors (Array | None) – Array of shape [max_iter, num_measures, quad_max_iter, lin_outer_iter] containing the GW errors at each iteration.

• costs (Array | None) – Array of shape [max_iter,] containing the cost at each iteration.

• costs_bary (Array | None) – Array of shape [max_iter, num_measures] containing the cost between the individual measures and the barycenter at each iteration.

• gw_convergence (Array | None) – Array of shape [max_iter,] containing the convergence of all GW problems at each iteration.

Methods

count(value, /)	Return number of occurrences of value.
index(value[, start, stop])	Return first index of value.
set(**kwargs)	Return a copy of self, possibly with overwrites.

Attributes

a	Alias for field number 2
cost	Alias for field number 0
costs	Alias for field number 4
costs_bary	Alias for field number 5
errors	Alias for field number 3
gw_convergence	Alias for field number 6
n_iters	Number of iterations.
x	Alias for field number 1