A greedy algorithm for finding maximum spanning trees in infinite graphs

CT Ryan, RL Smith - Operations Research Letters, 2022 - Elsevier
In finite graphs, greedy algorithms are used to find minimum spanning trees (MinST) and
maximum spanning trees (MaxST). In infinite graphs, we illustrate a general class of …

Dual Ascent and Primal-Dual Algorithms for Infinite-Horizon Nonstationary Markov Decision Processes

A Ghate - SIAM Journal on Optimization, 2023 - SIAM
Infinite-horizon nonstationary Markov decision processes (MDPs) extend their stationary
counterparts by allowing temporal variations in immediate costs and transition probabilities …

Minimum Spanning Trees in Infinite Graphs: Theory and Algorithms

CT Ryan, RL Smith, MA Epelman - SIAM Journal on Optimization, 2024 - SIAM
We discuss finding minimum spanning trees (MSTs) on connected graphs with countably
many nodes of finite degree. When edge costs are summable and an MST exists (which is …

Inverse optimization in minimum cost flow problems on countably infinite networks

S Nourollahi, A Ghate - Networks, 2019 - Wiley Online Library
Given the costs and a feasible solution for a minimum cost flow problem on a countably
infinite network, inverse optimization involves finding new costs that are close to the original …

Parallel network simplex algorithm for the minimum cost flow problem

G Kara, C Özturan - Concurrency and Computation: Practice …, 2022 - Wiley Online Library
In this work, we contribute a parallel implementation of the network simplex algorithm that is
used for the solution of minimum cost flow problem. In the network simplex algorithm, finding …

Approximations of countably infinite linear programs over bounded measure spaces

J Kuntz, P Thomas, GB Stan, M Barahona - SIAM Journal on Optimization, 2021 - SIAM
We study a class of countably infinite linear programs (CILPs) whose feasible sets are
bounded subsets of appropriately defined spaces of measures. The optimal value, optimal …

A simplex method for countably infinite linear programs

A Ghate, CT Ryan, RL Smith - SIAM Journal on Optimization, 2021 - SIAM
We introduce a simplex method for general countably infinite linear programs. Previous
literature has focused on special cases, such as infinite network flow problems or Markov …

[PDF][PDF] OPTIMAL PLANNING FOR ELECTRIFICATION OF PUBLIC TRANSIT SYSTEMS AND INFINITE-DIMENSIONAL LINEAR PROGRAMMING

F Cabral - 2023 - fcabral3.github.io
Modern transportation relies heavily on fossil fuels. However, fossil fuel consumption
endangers our world. According to the Intergovernmental Panel on Climate Change,[14] …

Parallel network flow algorithms

G Kara - 2022 - 193.140.201.98
Network flows is an active area of research that has applications in a wide variety of fields.
Several network flow problems are reduced to either the maximum flow problem or the …

Dual-based methods for solving infinite-horizon nonstationary deterministic dynamic programs

CT Ryan, RL Smith - Mathematical Programming, 2021 - Springer
We develop novel dual-ascent and primal-dual methods to solve infinite-horizon
nonstationary deterministic dynamic programs. These methods are finitely implementable …