Talk:Ordered subset expectation maximization

Algorithms and iterative methods
OSEM is an iterative method and not an algorithm. Algorithms terminate with a solution in a finite number of steps. Iterative methods yield sequences some subsequence of which converges in some sense.

Nemirovskii et alia has the best approximation-bound for finite step approximation error (known to me), and it's bad because of the problems of controlling the Lipschitz modulus of uniform continuity for sums. Kiefer.Wolfowitz (talk) 16:23, 21 July 2010 (UTC)

Assessment comment
Substituted at 03:17, 3 May 2016 (UTC)