Accelerating concept learning via sampling

A Baci, S Heindorf - Proceedings of the 32nd ACM International …, 2023 - dl.acm.org
Node classification is an important task in many fields, eg, predicting entity types in
knowledge graphs, classifying papers in citation graphs, or classifying nodes in social …

Learning concept lengths accelerates concept learning in ALC

NDJ Kouagou, S Heindorf, C Demir… - European Semantic Web …, 2022 - Springer
Abstract Concept learning approaches based on refinement operators explore partially
ordered solution spaces to compute concepts, which are used as binary classification …

AutoCL: AutoML for Concept Learning

J Li, S Satheesh, S Heindorf, D Moussallem… - World Conference on …, 2024 - Springer
Node classification in knowledge graphs aids in the discovery of new drugs, the
identification of risky users in social networks, and the completion of missing type …

Neural Class Expression Synthesis in 

NDJ Kouagou, S Heindorf, C Demir… - … Conference on Machine …, 2023 - Springer
Class expression learning in description logics has long been regarded as an iterative
search problem in an infinite conceptual space. Each iteration of the search process invokes …

LitCQD: Multi-hop reasoning in incomplete knowledge graphs with numeric literals

C Demir, M Wiebesiek, R Lu… - … Conference on Machine …, 2023 - Springer
Most real-world knowledge graphs, including Wikidata, DBpedia, and Yago are incomplete.
Answering queries on such incomplete graphs is an important, but challenging problem …

EDGE: Evaluation Framework for Logical vs. Subgraph Explanations for Node Classifiers on Knowledge Graphs

R Sapkota, D Köhler, S Heindorf - Proceedings of the 33rd ACM …, 2024 - dl.acm.org
As machine learning and deep learning become increasingly integrated into our daily lives,
understanding how these technologies make decisions is crucial. To ensure transparency …

[PDF][PDF] ROCES: Robust Class Expression Synthesis in Description Logics via Iterative Sampling

SH N'Dah Jean Kouagou, C Demir… - IJCAI. ijcai …, 2024 - papers.dice-research.org
We consider the problem of class expression learning using cardinality-minimal sets of
examples. Recent class expression learning approaches employ deep neural networks and …

Utilizing Description Logics for Global Explanations of Heterogeneous Graph Neural Networks

D Köhler, S Heindorf - arXiv preprint arXiv:2405.12654, 2024 - arxiv.org
Graph Neural Networks (GNNs) are effective for node classification in graph-structured data,
but they lack explainability, especially at the global level. Current research mainly utilizes …

Improving rule mining via embedding-based link prediction

N Kouagou, A Yilmaz, M Dumontier… - arXiv preprint arXiv …, 2024 - arxiv.org
Rule mining on knowledge graphs allows for explainable link prediction. Contrarily,
embedding-based methods for link prediction are well known for their generalization …

Class Expression Learning with Multiple Representations

ACN Ngomo, C Demir, N Kouagou… - Compendium of …, 2023 - ebooks.iospress.nl
Abstract Knowledge bases are now first-class citizens of the Web. Circa 50% of the 3.2
billion websites in the 2022 crawl of Web Data Commons contains knowledge base …