Search Results for author: Alexander Dockhorn

Found 10 papers, 5 papers with code

AutoRL Hyperparameter Landscapes

1 code implementation5 Apr 2023 Aditya Mohan, Carolin Benjamins, Konrad Wienecke, Alexander Dockhorn, Marius Lindauer

Addressing an important open question on the legitimacy of such dynamic AutoRL approaches, we provide thorough empirical evidence that the hyperparameter landscapes strongly vary over time across representative algorithms from RL literature (DQN, PPO, and SAC) in different kinds of environments (Cartpole, Bipedal Walker, and Hopper) This supports the theory that hyperparameters should be dynamically adjusted during training and shows the potential for more insights on AutoRL problems that can be gained through landscape analyses.

Hyperparameter Optimization Open-Ended Question Answering +1

Elastic Monte Carlo Tree Search with State Abstraction for Strategy Game Playing

1 code implementation30 May 2022 Linjie Xu, Jorge Hurtado-Grueso, Dominic Jeurissen, Diego Perez Liebana, Alexander Dockhorn

In this paper, we propose Elastic MCTS, an algorithm that uses state abstraction to play strategy games.

Portfolio Search and Optimization for General Strategy Game-Playing

1 code implementation21 Apr 2021 Alexander Dockhorn, Jorge Hurtado-Grueso, Dominik Jeurissen, Linjie Xu, Diego Perez-Liebana

Portfolio methods represent a simple but efficient type of action abstraction which has shown to improve the performance of search-based agents in a range of strategy games.

Generating Diverse and Competitive Play-Styles for Strategy Games

no code implementations17 Apr 2021 Diego Perez-Liebana, Cristina Guerrero-Romero, Alexander Dockhorn, Linjie Xu, Jorge Hurtado, Dominik Jeurissen

Designing agents that are able to achieve different play-styles while maintaining a competitive level of play is a difficult task, especially for games for which the research community has not found super-human performance yet, like strategy games.

Decision Making

Design and Implementation of TAG: A Tabletop Games Framework

1 code implementation25 Sep 2020 Raluca D. Gaina, Martin Balla, Alexander Dockhorn, Raul Montoliu, Diego Perez-Liebana

This document describes the design and implementation of the Tabletop Games framework (TAG), a Java-based benchmark for developing modern board games for AI research.

Board Games TAG

The Design Of "Stratega": A General Strategy Games Framework

no code implementations11 Sep 2020 Diego Perez-Liebana, Alexander Dockhorn, Jorge Hurtado Grueso, Dominik Jeurissen

Stratega, a general strategy games framework, has been designed to foster research on computational intelligence for strategy games.

Decision Making Real-Time Strategy Games

Learning Local Forward Models on Unforgiving Games

1 code implementation1 Sep 2019 Alexander Dockhorn, Simon M. Lucas, Vanessa Volz, Ivan Bravi, Raluca D. Gaina, Diego Perez-Liebana

This paper examines learning approaches for forward models based on local cell transition functions.

Introducing the Hearthstone-AI Competition

no code implementations6 May 2019 Alexander Dockhorn, Sanaz Mostaghim

The Hearthstone AI framework and competition motivates the development of artificial intelligence agents that can play collectible card games.

Card Games

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