Search Results for author: Stefan Heindorf

Found 9 papers, 7 papers with code

Causal Question Answering with Reinforcement Learning

1 code implementation5 Nov 2023 Lukas Blübaum, Stefan Heindorf

We introduce an Actor-Critic-based agent which learns to search through the graph to answer causal questions.

Fact Checking Link Prediction +2

Explaining $\mathcal{ELH}$ Concept Descriptions through Counterfactual Reasoning

no code implementations12 Jan 2023 Leonie Nora Sieger, Stefan Heindorf, Yasir Mahmood, Lukas Blübaum, Axel-Cyrille Ngonga Ngomo

Knowledge bases are widely used for information management, enabling high-impact applications such as web search, question answering, and natural language processing.

counterfactual Counterfactual Reasoning +2

Neural Class Expression Synthesis

no code implementations16 Nov 2021 N'Dah Jean Kouagou, Stefan Heindorf, Caglar Demir, Axel-Cyrille Ngonga Ngomo

Our main intuition is that class expression learning can be regarded as a translation problem.

Machine Translation Translation

EvoLearner: Learning Description Logics with Evolutionary Algorithms

1 code implementation8 Nov 2021 Stefan Heindorf, Lukas Blübaum, Nick Düsterhus, Till Werner, Varun Nandkumar Golani, Caglar Demir, Axel-Cyrille Ngonga Ngomo

We contribute a novel initialization method for the initial population: starting from positive examples, we perform biased random walks and translate them to description logic concepts.

Benchmarking Evolutionary Algorithms +1

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