Simplicial Complex
Karate Club
A compact classic benchmark for exploring community structure and higher-order representations.
sociallifting: clique complex
34 nodes · 136 relations
Aachen Higher-Order Repository of Networks
Research-quality simplicial complex, cell complex, and hypergraph datasets for benchmarking, method development, and reproducible higher-order network science.
Curated
Research-oriented curation of datasets and extensive statistics.
Browsable
Search, filter, and compare datasets quickly.
Citable
Source attribution and BibTeX-ready references. Datasets indefinitely available on Zenodo.
Popular Datasets
Simplicial Complex
Contact High School
Temporal proximity data from a school setting, useful for social interaction and contact-pattern studies.
socialtemporalproximitymetadata: node classessource: benson
327 nodes · See details
Simplicial Complex / Hypergraph
DBLP Co-Authorship
Scholarly collaboration data built from co-authorship patterns in computer science.
collaborationmetadata: node classes
22,363 nodes · 32,304 relations
Hypergraph
Senate Bills
Legislative sponsorship data capturing relationships between senators and bills.
metadata: node classessource: benson
294 nodes · 29,157 relations
Simplicial Complex / Hypergraph
Algebra Questions
Question-answer interactions around algebra topics, with labeled higher-order question categories.
metadata: edge classessource: benson
423 nodes · 1,268 relations
Simplicial Complex / Hypergraph
Walmart Trips
Retail basket data that turns shopping trips into higher-order co-purchase structure.
metadata: node classessource: benson
88,860 nodes · 69,906 relations
What is AHORN?
AHORN is a repository of higher-order network datasets, providing researchers with access to resources for benchmarking, testing algorithms, and exploring new questions in network science.
It is built around discoverability and reproducibility: each dataset page combines structured metadata, source links, download attachments, and citation information in one place.
Work in Progress
AHORN was introduced at the Higher Order Opportunities and Challenges workshop in Aachen from August 11 to August 13, 2025. The repository is still expanding, and community contributions remain a central part of improving the collection and the overall user experience.