**BookCrossing (implicit)**

# BookCrossing (implicit)

## About this network

This network contains information about books read by members of the BookCrossing community. Nodes of the network are users and books, and an edge denotes that a user has interacted with a book.

## 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 | Unweighted |

Size | 551,079 = 445,801 + 105,278 vertices (users + books) |

Volume | 1,149,739 edges (ratings) |

Average degree (overall) | 5.1581 edges / vertex |

Average user degree | 10.921 edges / vertex |

Average book degree | 3.3764 edges / vertex |

Fill | 3.2071 × 10^{–5} edges / vertex^{2} |

Maximum degree | 13,601 edges |

Wedge count | 465,125,366 |

Claw count | 751,050,106,734 |

Square count | 93,843,300 |

4-tour count | 2,613,565,786 |

Power law exponent (estimated) with d_{min} | 2.0510 (d_{min} = 8) |

Gini coefficient | 75.2% |

Relative edge distribution entropy | 85.5% |

Assortativity | –0.057575 |

Diameter | 19 edges |

90-percentile effective diameter | 5.78 edges |

Mean shortest path length | 4.82 edges |

Spectral norm | 147.96 |

Algebraic connectivity | 0.010442 |

## Downloads

TSV file: | bookcrossing_full-rating.tar.bz2 (3.94 MiB) |

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