Nathan Phelps

According to our database, Nathan Phelps authored at least 5 papers between 2023 and 2025.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2025

Towards understanding the bias in decision trees.

Nathan Phelps, Daniel J. Lizotte, Douglas G. Woolford

CoRR, January, 2025

2024

Enhancing an existing algorithm for small-cardinality constrained portfolio optimisation.

Nathan Phelps, Adam Metzler

J. Oper. Res. Soc., May, 2024

Challenges learning from imbalanced data using tree-based models: Prevalence estimates systematically depend on hyperparameters and can be upwardly biased.

Nathan Phelps, Daniel J. Lizotte, Douglas G. Woolford

CoRR, 2024

Using Platt's scaling for calibration after undersampling - limitations and how to address them.

Nathan Phelps, Daniel J. Lizotte, Douglas G. Woolford

CoRR, 2024

2023

Reinforcement learning in large, structured action spaces: A simulation study of decision support for spinal cord injury rehabilitation.

Nathan Phelps, Stephanie Marrocco, Stephanie Cornell, Dalton L. Wolfe, Daniel J. Lizotte

CoRR, 2023