**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

Code | ER |

Category | ⬤ Rating |

Data source | http://www.trustlet.org/wiki/Extended_Epinions_dataset |

Vertex type | User, product |

Edge type | Rating |

Format | Bipartite |

Edge weights | Ratings |

Metadata | Timestamps |

Size | 996,744 = 876,252 + 120,492 vertices (users + products) |

Volume | 13,668,320 edges (ratings) |

Average degree (overall) | 31.197 edges / vertex |

Average user degree | 113.44 edges / vertex |

Average product degree | 18.086 edges / vertex |

Fill | 0.00015010 edges / vertex^{2} |

Maximum degree | 162,169 edges |

Negativity | 22.8% |

Wedge count | 69,245,866,714 |

Claw count | 1.0920422075268000 × 10^{15} |

Square count | 170,303,771,005 |

4-tour count | 1,639,442,650,152 |

Power law exponent (estimated) with d_{min} | 1.9510 (d_{min} = 8) |

Gini coefficient | 76.9% |

Relative edge distribution entropy | 82.9% |

Assortativity | –0.042132 |

Diameter | 12 edges |

90-percentile effective diameter | 3.99 edges |

Mean shortest path length | 3.81 edges |

Spectral norm | 245.16 |

Preferential attachment exponent | 0.34251 (Îµ = 2.8178) |

## Downloads

TSV file: | epinions-rating.tar.bz2 (43.90 MiB) |

Extraction code: | epinions.tar.bz2 (14.79 KiB) |