Software

This page lists the core pieces of software that I have substantially contributed to, as well as other (often smaller) contributions to other open-source projects.

Core Software (Research)

Ludii

I am one of the main developers of the Ludii general game system, alongside several other Ludii team members. I worked on this during my PhD.

• Wrote most AI (search and learning) code.
• Substantial contributions to the core of Ludii’s engine.
• Profiling and optimising for speed and memory across the complete codebase.
• Set up and maintaining Travis CI.
• Set up and maintaining build scripts (Ant).
• Set up automated generation of Ludii Language Reference.
• Tech stack: Java, Python, Git, Travis CI, Ant, Slurm.
• Source code: https://github.com/Ludeme/Ludii/
• Main/sole developer for several subprojects:
  • Ludii Example AI (Java)
  • Ludii Python AI (Python, Java)
  • Ludii C++ AI (C++, Java, Java Native Interface)
  • Ludii Tutorials (ReadTheDocs) (source code)

Ludii + Polygames Bridge

I developed a bridge between the Java-based Ludii general game system and the C++/Python-based Polygames framework for deep learning in games.

• Main developer for the bridge.
• Tech stack: Java Native Interface (JNI), C++, CMake, Python, Java, Git, CircleCI.
• Source code: https://github.com/facebookarchive/Polygames/tree/main/src/games/ludii

MaastCTS2 (GVGAI Agent)

I developed the MaastCTS2 agent for General Video Game playing, based on the GVGAI framework. I worked on this for my M.Sc. thesis.

• First place in the 2016 Single-Player GVGAI competition track.
• Second place in the 2016 Two-Player GVGAI competition track.
• Tech stack: Java, Git.
• Source code: https://github.com/dennisSoemers/maastcts2

HTN Planner in Unreal Engine 4

I developed a Hierarchical Task Network (HTN) Planner in Unreal Engine 4. I worked on this for my research internship as a part of my Master in AI.

• Tech stack: Unreal Engine 4, C++, Git
• Source code: https://github.com/DennisSoemers/HTN-Planner/

Other Open-Source Contributions

rliable

• Contributed a small change to the performance profile plotting code of rliable (Google Research) to add support for linestyles. (PR#8)
• Python

OpenSpiel

• Contributed a change to how entries are sorted in the legend of alpha-rank plots in OpenSpiel (DeepMind). (PR#112)
• Python

HuggingFace Deep RL Class

• Contributed minor clarifications, fixes, and suggestions to the HuggingFace Deep RL Class. (PR#62, Issue#66)
• Jupyter Notebook, Python

Multi-MAuS

• Several contributions to the Multi-MAuS multi-modal authentication simulator.
• My contributions were primarily optimisations and feature engineering.
• Python

GVGAI

• Contributed several substantial optimisations to the GVGAI (general video game AI) framework. (PR#18, PR#40, PR#42)
• Java