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Approximate Subgradient Methods for Lagrangian Relaxations on Networks

open access: yes, 2007
Nonlinear network flow problems with linear/nonlinear side constraints can be solved by means of Lagrangian relaxations. The dual problem is the maximization of a dual function whose value is estimated by minimizing approximately a Lagrangian function on
Eugenio Mijangos
core  

A comparison of two subgradient methods for solving allocation problem

open access: yes, 2004
We consider and compare two subgradient type methods ("simple' and r-algorithm) for finding lower bounds in branch-and-bound method while solving allocation type problem with new kinds of discounts in the objective function.
Стецюк, П.И.   +3 more
core  

Gradient Descent Provably Solves Nonlinear Tomographic Reconstruction. [PDF]

open access: yesIEEE Trans Inf Theory
Fridovich-Keil S   +4 more
europepmc   +1 more source

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