**CiteULike u-t**

# CiteULike user–tag

## About this network

This is the bipartite network of users and tags in CiteULike. Each edge represents a tag assignment that connects a user and a tag. Since a user can assign a tag to multiple publications, the network contains multiple edges. The edges are annotated with the creation time of the tag assignment.

## Network info

Code | Cut |

Category | ⬤ Folksonomy |

Data source | http://www.citeulike.org/faq/data.adp |

Vertex type | User, tag |

Edge type | Assignment |

Format | Bipartite |

Edge weights | Multiple unweighted |

Metadata | Timestamps |

Size | 198,707 = 175,992 + 22,715 vertices (users + tags) |

Volume | 2,411,819 edges (assignments) |

Unique volume | 538,761 edges (assignments) |

Average degree (overall) | 27.408 edges / vertex |

Average user degree | 106.18 edges / vertex |

Average tag degree | 15.735 edges / vertex |

Fill | 0.00015474 edges / vertex^{2} |

Maximum degree | 189,295 edges |

Wedge count | 192,371,639 |

Claw count | 194,428,758,411 |

Square count | 146,940,165 |

4-tour count | 1,946,141,506 |

Power law exponent (estimated) with d_{min} | 1.7910 (d_{min} = 2) |

Gini coefficient | 91.3% |

Relative edge distribution entropy | 82.8% |

Assortativity | –0.097102 |

Diameter | 12 edges |

90-percentile effective diameter | 5.23 edges |

Mean shortest path length | 4.26 edges |

Spectral norm | 12418. |

Algebraic connectivity | 0.031528 |

Preferential attachment exponent | 0.81385 (ε = 2.8527) |

## Downloads

TSV file: | citeulike-ut.tar.bz2 (12.76 MiB) |