Epinions

Overview

Dataset name: Epinions
Latest version: v1
Available versions: v1
Source: https://snap.stanford.edu/data/soc-Epinions1.html

Epinions is a dataset for product recommendation research.

Citation

@inproceedings{DBLP:conf/semweb/RichardsonAD03,
  author       = {Matthew Richardson and
                  Rakesh Agrawal and
                  Pedro M. Domingos},
  editor       = {Dieter Fensel and
                  Katia P. Sycara and
                  John Mylopoulos},
  title        = {Trust Management for the Semantic Web},
  booktitle    = {The Semantic Web - {ISWC} 2003, Second International Semantic Web
                  Conference, Sanibel Island, FL, USA, October 20-23, 2003, Proceedings},
  series       = {Lecture Notes in Computer Science},
  volume       = {2870},
  pages        = {351--368},
  publisher    = {Springer},
  year         = {2003},
  url          = {https://doi.org/10.1007/978-3-540-39718-2\_23},
  doi          = {10.1007/978-3-540-39718-2\_23},
  timestamp    = {Tue, 07 Sep 2021 13:48:16 +0200},
  biburl       = {https://dblp.org/rec/conf/semweb/RichardsonAD03.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}

Version: v1

Data Sources

Name	Source type	Archive	URL	Checksum
trust	HttpSource	gz	https://snap.stanford.edu/data/soc-Epinions1.txt.gz	md5:8df7433d4486ba68eb25e623feacff04

Resources

trust

Type: interactions
Format: transactions_tabular
Required: yes
Source: trust
Filename: soc-Epinions1.txt

Schema

sep: "\t"
user_col: 0
item_col: 1
skiprows: 4

Dataset Characteristics

Computed at: 2025-12-15

Metric	Value
n_users	60341
n_items	51957
n_interactions	508837
space_size	55.99229712201492
space_size_log	1.7481282850865338
shape	1.161364205015686
shape_log	0.06496843629715585
density	0.00016230134290924048
density_log	-3.789677886731624
gini_item	0.7921899552346756
gini_user	0.7644161705431212
ratings_per_user	8.432690873535407
ratings_per_item	9.793425332486478

License & Usage

Please refer to the official dataset page for licensing and usage restrictions. https://snap.stanford.edu/data/soc-Epinions1.html