Barrett W. Thomas

Publication Activity (10 Years)

Years Active: 2004-2024
Publications (10 Years): 40

Top Topics

Neighborhood Search

Reinforcement Learning

Stochastic Dynamic

Top Venues

Eur. J. Oper. Res.

Comput. Oper. Res.

Publications

Marlin W. Ulmer, Justin C. Goodson, Barrett W. Thomas
Optimal Service Time Windows. Transp. Sci. 58 (2) (2024)
Sadjad Anzabi Zadeh, W. Nick Street, Barrett W. Thomas
An Explainable Deep Reinforcement Learning Model for Warfarin Maintenance Dosing Using Policy Distillation and Action Forging. CoRR (2024)
Karen R. Smilowitz, Jean-François Cordeau, Barrett W. Thomas, David Pisinger, Yafeng Yin, Ann M. Campbell
Special Issue on Emerging Topics in Transportation Science and Logistics. Transp. Sci. 57 (4) (2023)
Xinwei Chen, Tong Wang, Barrett W. Thomas, Marlin W. Ulmer
Same-day delivery with fair customer service. Eur. J. Oper. Res. 308 (2) (2023)
Fahrettin Cakir, Barrett W. Thomas, W. Nick Street
Rollout-based routing strategies with embedded prediction: A fish trawling application. Comput. Oper. Res. 150 (2023)
Sadjad Anzabi Zadeh, W. Nick Street, Barrett W. Thomas
Optimizing warfarin dosing using deep reinforcement learning. J. Biomed. Informatics 137 (2023)
Florentin D. Hildebrandt, Barrett W. Thomas, Marlin W. Ulmer
Opportunities for reinforcement learning in stochastic dynamic vehicle routing. Comput. Oper. Res. 150 (2023)
Xinwei Chen, Marlin W. Ulmer, Barrett W. Thomas
Deep Q-learning for same-day delivery with vehicles and drones. Eur. J. Oper. Res. 298 (3) (2022)
Sara Reed, Ann Melissa Campbell, Barrett W. Thomas
Impact of Autonomous Vehicle Assisted Last-Mile Delivery in Urban to Rural Settings. Transp. Sci. 56 (6) (2022)
Sara Reed, Ann Melissa Campbell, Barrett W. Thomas
The Value of Autonomous Vehicles for Last-Mile Deliveries in Urban Environments. Manag. Sci. 68 (1) (2022)
Sadjad Anzabi Zadeh, W. Nick Street, Barrett W. Thomas
Optimizing Warfarin Dosing using Deep Reinforcement Learning. CoRR (2022)
Niels A. H. Agatz, Mike Hewitt, Barrett W. Thomas
"Make no little plans": Impactful research to solve the next generation of transportation problems. Networks 77 (2) (2021)
Florentin D. Hildebrandt, Barrett W. Thomas, Marlin W. Ulmer
Where the Action is: Let's make Reinforcement Learning for Stochastic Dynamic Vehicle Routing Problems work! CoRR (2021)
Marlin W. Ulmer, Barrett W. Thomas, Ann Melissa Campbell, Nicholas Woyak
The Restaurant Meal Delivery Problem: Dynamic Pickup and Delivery with Deadlines and Random Ready Times. Transp. Sci. 55 (1) (2021)
Silviya Valeva, Mike Hewitt, Barrett W. Thomas
Managing uncertainty in demand through inventory and workforce development. Int. J. Prod. Res. 59 (21) (2021)
Yongjia Song, Marlin W. Ulmer, Barrett W. Thomas, Stein W. Wallace
Building Trust in Home Services - Stochastic Team-Orienteering with Consistency Constraints. Transp. Sci. 54 (3) (2020)
Xinwei Chen, Tong Wang, Barrett W. Thomas, Marlin W. Ulmer
Same-Day Delivery with Fairness. CoRR (2020)
Marlin W. Ulmer, Justin C. Goodson, Dirk C. Mattfeld, Barrett W. Thomas
On modeling stochastic dynamic vehicle routing problems. EURO J. Transp. Logist. 9 (2) (2020)
Marlin W. Ulmer, Barrett W. Thomas
Meso-parametric value function approximation for dynamic customer acceptances in delivery routing. Eur. J. Oper. Res. 285 (1) (2020)
Shu Zhang, Jeffrey W. Ohlmann, Barrett W. Thomas
Multi-period orienteering with uncertain adoption likelihood and waiting at customers. Eur. J. Oper. Res. 282 (1) (2020)
Xinwei Chen, Marlin W. Ulmer, Barrett W. Thomas
Deep Q-Learning for Same-Day Delivery with a Heterogeneous Fleet of Vehicles and Drones. CoRR (2019)
Marlin W. Ulmer, Barrett W. Thomas, Dirk C. Mattfeld
Preemptive depot returns for dynamic same-day delivery. EURO J. Transp. Logist. 8 (4) (2019)
Marlin W. Ulmer, Barrett W. Thomas
Enough Waiting for the Cable Guy - Estimating Arrival Times for Service Vehicle Routing. Transp. Sci. 53 (3) (2019)
Huan Jin, Barrett W. Thomas
Team orienteering with uncertain rewards and service times with an application to phlebotomist intrahospital routing. Networks 73 (4) (2019)
Barrett W. Thomas, Tobia Calogiuri, Mike Hewitt
An exact bidirectional A⋆ approach for solving resource-constrained shortest path problems. Networks 73 (2) (2019)
Stacy A. Voccia, Ann Melissa Campbell, Barrett W. Thomas
The Same-Day Delivery Problem for Online Purchases. Transp. Sci. 53 (1) (2019)
Mike Hewitt, Barrett W. Thomas
Special Issue on Uncertainty in Logistics and Transportation Systems. Transp. Sci. 52 (1) (2018)
Shu Zhang, Jeffrey W. Ohlmann, Barrett W. Thomas
Dynamic Orienteering on a Network of Queues. Transp. Sci. 52 (3) (2018)
Huan Jin, Mike Hewitt, Barrett W. Thomas
Workforce grouping and assignment with learning-by-doing and knowledge transfer. Int. J. Prod. Res. 56 (14) (2018)
Marlin W. Ulmer, Barrett W. Thomas
Same-day delivery with heterogeneous fleets of drones and vehicles. Networks 72 (4) (2018)
Silviya Valeva, Mike Hewitt, Barrett W. Thomas
A matheuristic for workforce planning with employee learning and stochastic demand. Int. J. Prod. Res. 55 (24) (2017)
Xi Chen, Barrett W. Thomas, Mike Hewitt
Multi-period technician scheduling with experience-based service times and stochastic customers. Comput. Oper. Res. 82 (2017)
Justin C. Goodson, Barrett W. Thomas, Jeffrey W. Ohlmann
A rollout algorithm framework for heuristic solutions to finite-horizon stochastic dynamic programs. Eur. J. Oper. Res. 258 (1) (2017)
Kamal Lamsal, Philip C. Jones, Barrett W. Thomas
Sugarcane Harvest Logistics in Brazil. Transp. Sci. 51 (2) (2017)
Jan Fabian Ehmke, Ann Melissa Campbell, Barrett W. Thomas
Vehicle routing to minimize time-dependent emissions in urban areas. Eur. J. Oper. Res. 251 (2) (2016)
Jan Fabian Ehmke, Ann Melissa Campbell, Barrett W. Thomas
Data-driven approaches for emissions-minimized paths in urban areas. Comput. Oper. Res. 67 (2016)
Justin C. Goodson, Barrett W. Thomas, Jeffrey W. Ohlmann
Restocking-Based Rollout Policies for the Vehicle Routing Problem with Stochastic Demand and Duration Limits. Transp. Sci. 50 (2) (2016)
Huan Jin, Barrett W. Thomas, Mike Hewitt
Integer programming techniques for makespan minimizing workforce assignment models that recognize human learning. Comput. Ind. Eng. 97 (2016)
Kamal Lamsal, Philip C. Jones, Barrett W. Thomas
Harvest logistics in agricultural systems with multiple, independent producers and no on-farm storage. Comput. Ind. Eng. 91 (2016)
Mike Hewitt, Austin Chacosky, Scott E. Grasman, Barrett W. Thomas
Integer programming techniques for solving non-linear workforce planning models with learning. Eur. J. Oper. Res. 242 (3) (2015)
Barrett W. Thomas, Emanuele Manni
Scheduled penalty Variable Neighborhood Search. Comput. Oper. Res. 52 (2014)
Shu Zhang, Jeffrey W. Ohlmann, Barrett W. Thomas
A priori orienteering with time windows and stochastic wait times at customers. Eur. J. Oper. Res. 239 (1) (2014)
Manuel López-Ibáñez, Christian Blum, Jeffrey W. Ohlmann, Barrett W. Thomas
The travelling salesman problem with time windows: Adapting algorithms from travel-time to makespan optimization. Appl. Soft Comput. 13 (9) (2013)
Justin C. Goodson, Jeffrey W. Ohlmann, Barrett W. Thomas
Rollout Policies for Dynamic Solutions to the Multivehicle Routing Problem with Stochastic Demand and Duration Limits. Oper. Res. 61 (1) (2013)
Stacy A. Voccia, Ann M. Campbell, Barrett W. Thomas
The probabilistic traveling salesman problem with time windows. EURO J. Transp. Logist. 2 (1-2) (2013)
Justin C. Goodson, Jeffrey W. Ohlmann, Barrett W. Thomas
Cyclic-order neighborhoods with application to the vehicle routing problem with stochastic demand. Eur. J. Oper. Res. 217 (2) (2012)
Gianpaolo Ghiani, Emanuele Manni, Barrett W. Thomas
A Comparison of Anticipatory Algorithms for the Dynamic and Stochastic Traveling Salesman Problem. Transp. Sci. 46 (3) (2012)
Hui Chen, Ann Melissa Campbell, Barrett W. Thomas
Network design for time-constrained delivery using subgraphs. Comput. Manag. Sci. 9 (4) (2012)
Ann Melissa Campbell, Michel Gendreau, Barrett W. Thomas
The orienteering problem with stochastic travel and service times. Ann. Oper. Res. 186 (1) (2011)
Ann Melissa Campbell, Barrett W. Thomas
Runtime reduction techniques for the probabilistic traveling salesman problem with deadlines. Comput. Oper. Res. 36 (4) (2009)
Thaddeus Sim, Timothy J. Lowe, Barrett W. Thomas
The stochastic p-hub center problem with service-level constraints. Comput. Oper. Res. 36 (12) (2009)
Hui Chen, Ann Melissa Campbell, Barrett W. Thomas, Arie Tamir
Minimax flow tree problems. Networks 54 (3) (2009)
Ann Melissa Campbell, Barrett W. Thomas
Probabilistic Traveling Salesman Problem with Deadlines. Transp. Sci. 42 (1) (2008)
Jeffrey W. Ohlmann, Michael J. Fry, Barrett W. Thomas
Route Design for Lean Production Systems. Transp. Sci. 42 (3) (2008)
Barrett W. Thomas
Waiting Strategies for Anticipating Service Requests from Known Customer Locations. Transp. Sci. 41 (3) (2007)
Jeffrey W. Ohlmann, Barrett W. Thomas
A Compressed-Annealing Heuristic for the Traveling Salesman Problem with Time Windows. INFORMS J. Comput. 19 (1) (2007)
Barrett W. Thomas, Chelsea C. White III
The dynamic shortest path problem with anticipation. Eur. J. Oper. Res. 176 (2) (2007)
Barrett W. Thomas, Chelsea C. White III
Anticipatory Route Selection. Transp. Sci. 38 (4) (2004)