Joseph A. Walton crest

Publications

A selection of research publications and presentations.

Conference Paper2026

Empirical Evaluation of Policy-Gradient Reinforcement Learning for Dynamic Service Control in an M/M/1 Queue

Joseph A. Walton, Gabriel Nicolosi

IISE Annual Conference & Expo · Presented

Abstract

This work evaluates policy-gradient reinforcement learning methods for service-rate control in a stochastic queueing system, with attention to policy structure, training stability, and simulation-based validation.

Working Paper2026

State-Action Space Growth in Discrete Machine-Interference Repair Control with Speed-Dependent Failures

Joseph A. Walton, Gabriel Nicolosi

Working Paper · In preparation

Abstract

A study of state and action growth, exact dynamic programming boundaries, and scalable solution approaches for controlled finite-source machine repair systems.

Poster2025

Simulation-Based Evaluation of Reinforcement Learning Policies for Dynamic Queue Control

Joseph A. Walton, Gabriel Nicolosi

Research Poster · Presented

Abstract

A visual summary of reinforcement learning experiments for adaptive queueing control under uncertain arrivals and operating costs.