Barrett W. Thomas

61 papers Journal 61
YearRankTypeTitle / Venue / Authors
2025 J jnl
Learning State-Dependent Policy Parametrizations for Dynamic Technician Routing with Rework.
Transp. Sci.
Jonas Stein, Florentin D. Hildebrandt, Marlin W. Ulmer, Barrett W. Thomas
2025 J jnl
To Start Up a Start-Up-Embedding Strategic Demand Development in Operational On-Demand Fulfillment via Reinforcement Learning with Information Shaping.
CoRR
Xinwei Chen, Marlin W. Ulmer, Barrett W. Thomas
2024 J jnl
An Explainable Deep Reinforcement Learning Model for Warfarin Maintenance Dosing Using Policy Distillation and Action Forging.
CoRR
Sadjad Anzabi Zadeh, W. Nick Street, Barrett W. Thomas
2024 J jnl
Learning State-Dependent Policy Parametrizations for Dynamic Technician Routing with Rework.
CoRR
Jonas Stein, Florentin D. Hildebrandt, Barrett W. Thomas, Marlin W. Ulmer
2024 J jnl
Optimal Service Time Windows.
Transp. Sci.
Marlin W. Ulmer, Justin C. Goodson, Barrett W. Thomas
2023 J jnl
Opportunities for reinforcement learning in stochastic dynamic vehicle routing.
Comput. Oper. Res.
Florentin D. Hildebrandt, Barrett W. Thomas, Marlin W. Ulmer
2023 J jnl
Optimizing warfarin dosing using deep reinforcement learning.
J. Biomed. Informatics
Sadjad Anzabi Zadeh, W. Nick Street, Barrett W. Thomas
2023 J jnl
Rollout-based routing strategies with embedded prediction: A fish trawling application.
Comput. Oper. Res.
Fahrettin Cakir, Barrett W. Thomas, W. Nick Street
2023 J jnl
Same-day delivery with fair customer service.
Eur. J. Oper. Res.
Xinwei Chen, Tong Wang, Barrett W. Thomas, Marlin W. Ulmer
2023 J jnl
Special Issue on Emerging Topics in Transportation Science and Logistics.
Transp. Sci.
Karen R. Smilowitz, Jean-François Cordeau, Barrett W. Thomas, David Pisinger, Yafeng Yin, Ann M. Campbell
2022 J jnl
Deep Q-learning for same-day delivery with vehicles and drones.
Eur. J. Oper. Res.
Xinwei Chen, Marlin W. Ulmer, Barrett W. Thomas
2022 J jnl
Impact of Autonomous Vehicle Assisted Last-Mile Delivery in Urban to Rural Settings.
Transp. Sci.
Sara Reed, Ann Melissa Campbell, Barrett W. Thomas
2022 J jnl
Optimizing Warfarin Dosing using Deep Reinforcement Learning.
CoRR
Sadjad Anzabi Zadeh, W. Nick Street, Barrett W. Thomas
2022 J jnl
The Value of Autonomous Vehicles for Last-Mile Deliveries in Urban Environments.
Manag. Sci.
Sara Reed, Ann Melissa Campbell, Barrett W. Thomas
2021 J jnl
"Make no little plans": Impactful research to solve the next generation of transportation problems.
Networks
Niels A. H. Agatz, Mike Hewitt, Barrett W. Thomas
2021 J jnl
Managing uncertainty in demand through inventory and workforce development.
Int. J. Prod. Res.
Silviya Valeva, Mike Hewitt, Barrett W. Thomas
2021 J jnl
The Restaurant Meal Delivery Problem: Dynamic Pickup and Delivery with Deadlines and Random Ready Times.
Transp. Sci.
Marlin W. Ulmer, Barrett W. Thomas, Ann Melissa Campbell, Nicholas Woyak
2021 J jnl
Where the Action is: Let's make Reinforcement Learning for Stochastic Dynamic Vehicle Routing Problems work!
CoRR
Florentin D. Hildebrandt, Barrett W. Thomas, Marlin W. Ulmer
2020 J jnl
Building Trust in Home Services - Stochastic Team-Orienteering with Consistency Constraints.
Transp. Sci.
Yongjia Song, Marlin W. Ulmer, Barrett W. Thomas, Stein W. Wallace
2020 J jnl
Meso-parametric value function approximation for dynamic customer acceptances in delivery routing.
Eur. J. Oper. Res.
Marlin W. Ulmer, Barrett W. Thomas
2020 J jnl
Multi-period orienteering with uncertain adoption likelihood and waiting at customers.
Eur. J. Oper. Res.
Shu Zhang, Jeffrey W. Ohlmann, Barrett W. Thomas
2020 J jnl
On modeling stochastic dynamic vehicle routing problems.
EURO J. Transp. Logist.
Marlin W. Ulmer, Justin C. Goodson, Dirk C. Mattfeld, Barrett W. Thomas
2020 J jnl
Same-Day Delivery with Fairness.
CoRR
Xinwei Chen, Tong Wang, Barrett W. Thomas, Marlin W. Ulmer
2019 J jnl
An exact bidirectional A⋆ approach for solving resource-constrained shortest path problems.
Networks
Barrett W. Thomas, Tobia Calogiuri, Mike Hewitt
2019 J jnl
Deep Q-Learning for Same-Day Delivery with a Heterogeneous Fleet of Vehicles and Drones.
CoRR
Xinwei Chen, Marlin W. Ulmer, Barrett W. Thomas
2019 J jnl
Enough Waiting for the Cable Guy - Estimating Arrival Times for Service Vehicle Routing.
Transp. Sci.
Marlin W. Ulmer, Barrett W. Thomas
2019 J jnl
Preemptive depot returns for dynamic same-day delivery.
EURO J. Transp. Logist.
Marlin W. Ulmer, Barrett W. Thomas, Dirk C. Mattfeld
2019 J jnl
Team orienteering with uncertain rewards and service times with an application to phlebotomist intrahospital routing.
Networks
Huan Jin, Barrett W. Thomas
2019 J jnl
The Same-Day Delivery Problem for Online Purchases.
Transp. Sci.
Stacy A. Voccia, Ann Melissa Campbell, Barrett W. Thomas
2018 J jnl
Dynamic Orienteering on a Network of Queues.
Transp. Sci.
Shu Zhang, Jeffrey W. Ohlmann, Barrett W. Thomas
2018 J jnl
Same-day delivery with heterogeneous fleets of drones and vehicles.
Networks
Marlin W. Ulmer, Barrett W. Thomas
2018 J jnl
Special Issue on Uncertainty in Logistics and Transportation Systems.
Transp. Sci.
Mike Hewitt, Barrett W. Thomas
2018 J jnl
Workforce grouping and assignment with learning-by-doing and knowledge transfer.
Int. J. Prod. Res.
Huan Jin, Mike Hewitt, Barrett W. Thomas
2017 J jnl
A matheuristic for workforce planning with employee learning and stochastic demand.
Int. J. Prod. Res.
Silviya Valeva, Mike Hewitt, Barrett W. Thomas
2017 J jnl
A rollout algorithm framework for heuristic solutions to finite-horizon stochastic dynamic programs.
Eur. J. Oper. Res.
Justin C. Goodson, Barrett W. Thomas, Jeffrey W. Ohlmann
2017 J jnl
Multi-period technician scheduling with experience-based service times and stochastic customers.
Comput. Oper. Res.
Xi Chen, Barrett W. Thomas, Mike Hewitt
2017 J jnl
Sugarcane Harvest Logistics in Brazil.
Transp. Sci.
Kamal Lamsal, Philip C. Jones, Barrett W. Thomas
2016 J jnl
Data-driven approaches for emissions-minimized paths in urban areas.
Comput. Oper. Res.
Jan Fabian Ehmke, Ann Melissa Campbell, Barrett W. Thomas
2016 J jnl
Harvest logistics in agricultural systems with multiple, independent producers and no on-farm storage.
Comput. Ind. Eng.
Kamal Lamsal, Philip C. Jones, Barrett W. Thomas
2016 J jnl
Integer programming techniques for makespan minimizing workforce assignment models that recognize human learning.
Comput. Ind. Eng.
Huan Jin, Barrett W. Thomas, Mike Hewitt
2016 J jnl
Restocking-Based Rollout Policies for the Vehicle Routing Problem with Stochastic Demand and Duration Limits.
Transp. Sci.
Justin C. Goodson, Barrett W. Thomas, Jeffrey W. Ohlmann
2016 J jnl
Vehicle routing to minimize time-dependent emissions in urban areas.
Eur. J. Oper. Res.
Jan Fabian Ehmke, Ann Melissa Campbell, Barrett W. Thomas
2015 J jnl
Integer programming techniques for solving non-linear workforce planning models with learning.
Eur. J. Oper. Res.
Mike Hewitt, Austin Chacosky, Scott E. Grasman, Barrett W. Thomas
2014 J jnl
A priori orienteering with time windows and stochastic wait times at customers.
Eur. J. Oper. Res.
Shu Zhang, Jeffrey W. Ohlmann, Barrett W. Thomas
2014 J jnl
Scheduled penalty Variable Neighborhood Search.
Comput. Oper. Res.
Barrett W. Thomas, Emanuele Manni
2013 J jnl
Rollout Policies for Dynamic Solutions to the Multivehicle Routing Problem with Stochastic Demand and Duration Limits.
Oper. Res.
Justin C. Goodson, Jeffrey W. Ohlmann, Barrett W. Thomas
2013 J jnl
The probabilistic traveling salesman problem with time windows.
EURO J. Transp. Logist.
Stacy A. Voccia, Ann M. Campbell, Barrett W. Thomas
2013 J jnl
The travelling salesman problem with time windows: Adapting algorithms from travel-time to makespan optimization.
Appl. Soft Comput.
Manuel López-Ibáñez, Christian Blum, Jeffrey W. Ohlmann, Barrett W. Thomas
2012 J jnl
A Comparison of Anticipatory Algorithms for the Dynamic and Stochastic Traveling Salesman Problem.
Transp. Sci.
Gianpaolo Ghiani, Emanuele Manni, Barrett W. Thomas
2012 J jnl
Cyclic-order neighborhoods with application to the vehicle routing problem with stochastic demand.
Eur. J. Oper. Res.
Justin C. Goodson, Jeffrey W. Ohlmann, Barrett W. Thomas
2012 J jnl
Network design for time-constrained delivery using subgraphs.
Comput. Manag. Sci.
Hui Chen, Ann Melissa Campbell, Barrett W. Thomas
2011 J jnl
The orienteering problem with stochastic travel and service times.
Ann. Oper. Res.
Ann Melissa Campbell, Michel Gendreau, Barrett W. Thomas
2009 J jnl
Minimax flow tree problems.
Networks
Hui Chen, Ann Melissa Campbell, Barrett W. Thomas, Arie Tamir
2009 J jnl
Runtime reduction techniques for the probabilistic traveling salesman problem with deadlines.
Comput. Oper. Res.
Ann Melissa Campbell, Barrett W. Thomas
2009 J jnl
The stochastic p-hub center problem with service-level constraints.
Comput. Oper. Res.
Thaddeus Sim, Timothy J. Lowe, Barrett W. Thomas
2008 J jnl
Probabilistic Traveling Salesman Problem with Deadlines.
Transp. Sci.
Ann Melissa Campbell, Barrett W. Thomas
2008 J jnl
Route Design for Lean Production Systems.
Transp. Sci.
Jeffrey W. Ohlmann, Michael J. Fry, Barrett W. Thomas
2007 J jnl
A Compressed-Annealing Heuristic for the Traveling Salesman Problem with Time Windows.
INFORMS J. Comput.
Jeffrey W. Ohlmann, Barrett W. Thomas
2007 J jnl
The dynamic shortest path problem with anticipation.
Eur. J. Oper. Res.
Barrett W. Thomas, Chelsea C. White III
2007 J jnl
Waiting Strategies for Anticipating Service Requests from Known Customer Locations.
Transp. Sci.
Barrett W. Thomas
2004 J jnl
Anticipatory Route Selection.
Transp. Sci.
Barrett W. Thomas, Chelsea C. White III