Action selection for hammer shots in curling: Optimization of non-convex continuous actions with stochastic action outcomes
Optimal decision making in the face of uncertainty is an active area of research in artificial intelligence. In this thesis, I present the sport of curling as a novel application domain for research in optimal decision making. I focus on one aspect of the sport, the hammer shot, the last shot taken before a score is given, and how selecting this shot can be modelled as a low-dimensional optimization problem with a continuous action space and stochastic transitions. I explore the unique research challenges that are brought forth when optimizing in a setting where there is uncertainty in the action outcomes. I then survey several existing optimization strategies and describe a new optimization algorithm called Delaunay Sampling, adapted from a method based on Delaunay triangulation. I compare the performance of Delaunay Sampling with the other algorithms using our curling physics simulator and show that it outperforms these other algorithms. I also show that, with a few caveats, Delaunay Sampling exceeds the performance of Olympic-level humans when selecting strategies for hammer shots.
© Copyright 2013 All rights reserved.
| Subjects: | |
|---|---|
| Notations: | social sciences technical and natural sciences sport games |
| Language: | English |
| Published: |
Alberta
2013
|
| Online Access: | https://doi.org/10.7939/R3MS3KD3C |
| Pages: | 78 |
| Document types: | master thesis |
| Level: | advanced |