Iterative Decision Tree Learning in the Real World

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As mentioned in a previous blog post, we developed an iterative algorithm for training decision trees (DTs) from trained deep reinforcement learning (DRL) agents. The algorithm combines the simple structure of DTs and the predictive power of well-performing DRL agents. In our publication, we tested the idea on seven different control problems and successfully trained...

Presenting our research at the World Conference on XAI

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After having participated in its debut last year, it was a special pleasure to visit the second edition of The World Conference on Explainable Artificial Intelligence (xAI2024). The conference was a full immersion into all aspects of explainable AI. The keynote speech by Prof. Fosca Giannotti about hybrid decision-making and the two panel discussions on...

Dataninja Closing Conference

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Time flies... It wasn't that long ago (or at least it feels like it) that I wrote a blog post about the first Dataninja Retreat. Now we already held the closing conference of the Dataninja project. From Tuesday 25th to Thursday 27th we had the pleasure to enjoy three days of science and meetups at...

Visiting the AAAI Conference on Artificial Intelligence in Vancouver

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In the last week of February, my RL3 Dataninja colleague Moritz Lange and I had the chance to visit the AAAI conference on AI 2024. Listening to Yann LeCun in person speak about the challenges of machine learning was inspiring and attending Moritz' presentation of our collaborative work "Interpretable Brain-Inspired Representations Improve RL Performance on...

Dataninja-Tandem wins Best Paper Award at LOD 2023 conference

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Our participation in this year's edition of the LOD conference, as previously announced in one of our blog post, proved to be an exceptionally enjoyable experience. The systematic evaluation of auxiliary tasks in reinforcement learning published in “Improving Reinforcement Learning Efficiency with Auxiliary Tasks in Non-Visual Environments: A Comparison” by first author Moritz Lange (Dataninja-colleague...

Dataninja Retreat 2023

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From September 6th to September 9th we held our last annual retreat of the Dataninja research training group in Krefeld. Alongside our invited speaker's talk (Dr. Alessandro Fabris from Max Planck Institute for Security and Privacy) about algorithmic fairness, each PhD candidate from the Dataninja projects presented their progress and current investigations. In my contribution...

Article Published in Special Issue of "Algorithms"

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We are delighted to announce that our article “Iterative Oblique Decision Trees Deliver Explainable RL Models” was accepted and is now part of the special issue “Advancements in Reinforcement Learning Algorithms” in the MDPI journal Algorithms (impact factor 2.2, CiteScore 3.7) . Explainability in AI and RL (known as XAI and XRL) becomes increasingly important....

Dataninja Spring-School 2023

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The second edition of the Dataninja Spring-School was held from 8th to 10th of May 2023 in Bielefeld and as a hybrid event. We had the honor and pleasure to attend talks and tutorials from renowned researchers and aspiring young scientists. We contributed with an extended abstract and our scientific poster “Finding the Relevant Samples...