XGI-DATA

XGI-DATA is a repository of openly available hypergraph datasets in JSON format with corresponding documentation of network statistics, limitations of the data, and methods of collection. They are hosted in the XGI Community on Zenodo. This is loosely inspired by Datasheets for Datasets by Gebru et al.

Dataset format

The xgi-data format for higher-order datasets is a JSON data structure with the following structure:

hypergraph-data: This tag accesses the attributes of the entire hypergraph dataset such as the authors or dataset name.
node-data: This tag accesses the nodes of the hypergraph and their associated properties as a dictionary where the keys are node IDs and the corresponding values are dictionaries. If a node doesn’t have any properties, the associated dictionary is empty.
- name: This tag accesses the node’s name if there is one that is different from the ID specified in the hyperedges.
- Other tags are user-specified based on the particular attributes provided by the dataset.
edge-data: This tag accesses the hyperedges of the hypergraph and their associated attributes.
- name: This tag accesses the edge’s name if one is provided.
- timestamp: This is the tag specifying the time associated with the hyperedge if it is given. All times are stored in ISO8601 standard.
- Other tags are user-specified based on the particular attributes provided by the dataset.
edge-dict: This tag accesses the edge IDs and the corresponding nodes which participate in that hyperedge.

Loading datasets

Loading a dataset using XGI is as simple as the following two lines:

import xgi
H = xgi.load_xgi_data("<dataset_name>")

XGI-DATA uses an HTTP request to load the hypergraph dataset.

Network Statistics

More details on individual datasets are available at the XGI-DATA page.

In this table, |V| denotes the number of nodes, |E| denotes the number of edges, |E^*| denotes the number of unique edges, and s_max denotes the maximum edge size.