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KONECT > Networks > Epinions

Epinions product ratings

About this network

This is the bipartite rating network of Epinions, an online product rating site. The nodes of the network are users and products, and each edge connects a user with a product and represents a rating. The weight of the edge is the rating value.

Network info

CodeER
Category Rating
Data source http://www.trustlet.org/wiki/Extended_Epinions_dataset
Vertex type User, product
Edge type Rating
FormatBipartite: Edges connect two types of nodes Bipartite
Edge weightsRatings: Edges are ratings Ratings
Metadata Timestamps:  Edges are annotated with a timestamps Timestamps
Size996,744 = 876,252 + 120,492 vertices (users + products)
Volume13,668,320 edges (ratings)
Average degree (overall)31.197 edges / vertex
Average user degree113.44 edges / vertex
Average product degree18.086 edges / vertex
Fill0.00015010 edges / vertex2
Maximum degree162,169 edges
Negativity22.8%
Wedge count69,245,866,714
Claw count1.0920422075268000 × 1015
Square count170,303,771,005
4-tour count1,639,442,650,152
Power law exponent (estimated) with dmin1.9510 (dmin = 8)
Gini coefficient76.9%
Relative edge distribution entropy82.9%
Assortativity–0.042132
Diameter12 edges
90-percentile effective diameter3.99 edges
Mean shortest path length3.81 edges
Spectral norm245.16
Preferential attachment exponent0.34251 (ε = 2.8178)
Temporal distribution of the Epinions product ratings network
Temporal distribution
User degree distribution of the Epinions product ratings network
User degree distribution
Product degree distribution of the Epinions product ratings network
Product degree distribution
User degree distribution of the Epinions product ratings network
User degree distribution
Product degree distribution of the Epinions product ratings network
Product degree distribution
Left degree distribution of the Epinions product ratings network
Left degree distribution
Degree distribution of the Epinions product ratings network
Degree distribution
User degree distribution of the Epinions product ratings network
User degree distribution
Product degree distribution of the Epinions product ratings network
Product degree distribution
Distance distribution of the Epinions product ratings network
Distance distribution
Distance distribution on a logistic scale of the Epinions product ratings network
Distance distribution on a logistic scale
Spectral distribution of the eigenvalues of A of the Epinions product ratings network
Spectral distribution of the eigenvalues of A
Spectral distribution of the eigenvalues of N of the Epinions product ratings network
Spectral distribution of the eigenvalues of N
Spectral distribution of the eigenvalues of L of the Epinions product ratings network
Spectral distribution of the eigenvalues of L
Cumulative spectral distribution of A of the Epinions product ratings network
Cumulative spectral distribution of A
Cumulative spectral distribution of N of the Epinions product ratings network
Cumulative spectral distribution of N
Cumulative spectral distribution of L of the Epinions product ratings network
Cumulative spectral distribution of L

Downloads

TSV file:downloadepinions-rating.tar.bz2 (43.90 MiB)
Extraction code:downloadepinions.tar.bz2 (14.79 KiB)

References

[1] Epinions product ratings network dataset -- KONECT, October 2016. [ http ]
[2] Paolo Massa and Paolo Avesani. Controversial users demand local trust metrics: an experimental study on epinions.com community. In Proc. American Association for Artificial Intelligence Conf., pages 121--126, 2005.

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