**BookCrossing (ratings)**

# BookCrossing (ratings)

## About this network

This is the bipartite book rating network of the BookCrossing community. Rating values are integers between one and ten, where ten represents the best score. An edge shows that a user has rated a book. Nodes in the left column are users; nodes in the right column are books.

## Network info

Code | Bx |

Category | ⬤ Rating |

Date of origin | 2004-08-01 – 2004-09-01 |

Data source | http://www.informatik.uni-freiburg.de/~cziegler/BX/ |

Vertex type | User, book |

Edge type | Rating |

Format | Bipartite |

Edge weights | Ratings |

Size | 341,559 = 263,757 + 77,802 vertices (users + books) |

Volume | 433,652 edges (ratings) |

Average degree (overall) | 3.2883 edges / vertex |

Average user degree | 5.5738 edges / vertex |

Average book degree | 2.3320 edges / vertex |

Fill | 2.9974 × 10^{–5} edges / vertex^{2} |

Maximum degree | 8,524 edges |

Negativity | 45.6% |

Wedge count | 80,944,469 |

Claw count | 141,344,884,260 |

Square count | 1,457,330 |

4-tour count | 336,304,276 |

Power law exponent (estimated) with d_{min} | 2.0810 (d_{min} = 2) |

Gini coefficient | 66.3% |

Relative edge distribution entropy | 89.4% |

Assortativity | –0.058946 |

Diameter | 23 edges |

90-percentile effective diameter | 6.92 edges |

Mean shortest path length | 5.65 edges |

Spectral norm | 152.91 |

Algebraic connectivity | 6.9295 × 10^{–5} |

## Downloads

TSV file: | bookcrossing_rating.tar.bz2 (1.72 MiB) |

Extraction code: | bookcrossing.tar.bz2 (14.96 KiB) |