Matthias Plappert

Founder at Angel Investor

Berlin, Germany
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Summary

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Rockstar
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Matthias Plappert is a founder and research scientist based in Berlin with 15 years’ experience at the intersection of machine learning, robotics, reinforcement learning, and code synthesis. He contributed to high-impact projects at OpenAI (including work that powers GitHub Copilot) and led visible robotics research—most famously solving a Rubik’s cube with a humanoid robot hand featured in the New York Times. Matthias advises teams on high-stakes AI/ML decisions through dfdx labs, invests as an angel alongside his wife, and has held research roles at GitHub and OpenAI. His open-source contributions include improving core DQN implementations in the popular keras-rl repo, reflecting a blend of production-grade engineering and algorithmic depth.
code15 years of coding experience
job7 years of employment as a software developer
bookMaster’s Degree, Computer Science, Master’s Degree, Computer Science at Karlsruhe Institute of Technology (KIT)
languagesEnglish, German, French
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109reputation
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Github Skills (12)

keras10
dqn10
machine-learning10
deep-learning10
python10
reinforcement-learning10
optimization9
tensorflow9
optimisation9
algorithm9
algorithms9
iphone6

Programming languages (10)

C++CTeXGoObjective-CJupyter NotebookCythonRuby

Github contributions (5)

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keras-rl/keras-rl

Jul 2016 - Dec 2017

Deep Reinforcement Learning for Keras.
Role in this project:
userML Engineer
Contributions:6 releases, 204 commits, 74 PRs in 1 year 5 months
Contributions summary:Matthias's contributions primarily involve refactoring and improving the `rl/agents/dqn.py` file, which suggests a focus on enhancing the core functionality of the Deep Q-Network (DQN) agent. Their work includes refactoring policies, improving metric handling, refactoring memory, and adding support for features such as normalization and Huber loss. The user appears to be focused on the implementation and optimization of reinforcement learning algorithms.
deep-learningreinforcement-learningtheanoneural-networksmachine-learning
matthiasplappert/pibot

Jun 2015 - Aug 2016

Contributions:140 commits, 5 pushes in 1 year 2 months
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Matthias Plappert - Founder at Angel Investor