Opsahl UC Irvine Online Forum Network

UC Irvine forum network, a network of the Koblenz Network Collection (KONECT) (User–forum posts). KONECT's file for it has the header `% bip positive`, i.e. a bipartite network with weights marked `positive`. This copy holds 33,720 edges between 899 user nodes and 522 forum nodes, timed from 14 May 2004 to 26 October 2004.

#Bipartite network#Online forum#Student#Timestamps

Download data package README Original files as received BibTeX JSONSimilar datasets

Analytics

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· graph.json

The full graph has 1,421 nodes; this view shows the 1,000-node sample the pipeline drew for display. Node size is centrality, colour is community.

1.4K
Nodes
7.1K
Edges
7.03e-03
Density
3
Components
-0.1425
Assortativity
0.0%
Reciprocity
244
Bridges
Most central nodes
forum:70.08873
forum:130.08239
user:650.06972
forum:630.06761
forum:100.06479
user:2130.06197
user:670.05915
forum:430.05775
forum:540.05775
forum:730.05563

Computed over the full corpus.

Record

Catalog key
opsahl-ucforum
Authors
Opsahl, Tore
Year
2013
Source paper
Triadic closure in two-mode networks: Redefining the global and local clustering coefficients
DOI / arXiv
10.1016/j.socnet.2011.07.001
License
CC BY-SA 2.0 Germany (as stated by KONECT) (LicenseRef-CC-BY-SA-2.0-DE)
Records
1,421
Nodes
1,421
Edges
7,089
Nodes are
student / forum
Edges are
forum post
Attributes
nodes have no attributes; edges have attributes
Languages
en
Collected
2009 (2000s)
Tasks
From the graph: link prediction, community detection

Provenance

Originally published at
https://konect.cc/networks/opsahl-ucforum/ unverified
Original files as received
The source files, unconverted, kept for reference: mirrored on echo.directory on 2026-10-02, 179.4 KB across 1 files. Checksums in MANIFEST.json. For use, start with the data package below.
Data package
Version 1.0.0 of this dataset as an ECHO Data Package: edges (33,720 rows).
Structure
Bipartite network, Multigraph (repeated links), Temporal (timestamped)

Citations

Triadic closure in two-mode networks: Redefining the global and local clustering coefficients
T. Opsahl
Journal Article · Soc. Networks · 2010

547
citations
well cited
30
influential citations
5% of all citations

Cited by

Show all 10

Citation data from Semantic Scholar, retrieved 2026-10-19.

How to cite

BibTeX

@misc{echo2026,
  title  = {ECHO: Exploratory Compendium of Humanity Online},
  author = {Switzer, Braden and Zafarani, Reza},
  year   = {2026},
  url    = {https://echo.directory},
  note   = {Syracuse University}
}

@article{Opsahl_2013,
  title     = {Triadic closure in two-mode networks: Redefining the global and local clustering coefficients},
  volume    = {35},
  issn      = {0378-8733},
  url       = {http://dx.doi.org/10.1016/j.socnet.2011.07.001},
  doi       = {10.1016/j.socnet.2011.07.001},
  number    = {2},
  journal   = {Social Networks},
  publisher = {Elsevier BV},
  author    = {Opsahl, Tore},
  year      = {2013},
  month     = May,
  pages     = {159–167}
}

APA

Switzer, B., & Zafarani, R. (2026). ECHO: Exploratory Compendium of Humanity Online [Data repository]. Syracuse University. https://echo.directory

Opsahl, T. (2013). Opsahl UC Irvine Online Forum Network [Data set]. https://doi.org/10.1016/j.socnet.2011.07.001

MLA

Switzer, Braden, and Reza Zafarani. ECHO: Exploratory Compendium of Humanity Online. Syracuse University, 2026, echo.directory.

Opsahl, Tore. Opsahl UC Irvine Online Forum Network. 2013, doi.org/10.1016/j.socnet.2011.07.001.

BibTeX · RIS · CSL-JSON

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