**ArXiv cond-mat**

# arXiv cond-mat

## About this network

This bipartite network contains authorship links between authors and publications in the arXiv condensed matter section (cond-mat) from 1995 to 1999. An edge represents an authorship connecting an author and a paper.

## Network info

Code | AC |

Category | ⬤ Authorship |

Date of origin | 1995-01-01 – 1999-12-31 |

Data source | http://toreopsahl.com/datasets/#newman2001 |

Vertex type | Author, paper |

Edge type | Authorship |

Format | Bipartite |

Edge weights | Unweighted |

Size | 55,467 = 38,741 + 16,726 vertices (authors + papers) |

Volume | 58,595 edges (authorships) |

Average degree (overall) | 3.0250 edges / vertex |

Average author degree | 3.5032 edges / vertex |

Average paper degree | 2.6616 edges / vertex |

Fill | 0.00015913 edges / vertex^{2} |

Maximum degree | 116 edges |

Wedge count | 353,433 |

Claw count | 2,249,330 |

Square count | 70,549 |

4-tour count | 2,095,390 |

Power law exponent (estimated) with d_{min} | 2.8110 (d_{min} = 3) |

Gini coefficient | 39.0% |

Relative edge distribution entropy | 96.6% |

Assortativity | –0.12932 |

Diameter | 36 edges |

90-percentile effective diameter | 16.86 edges |

Effective diameter | 15.182 edges (estimated) |

Mean shortest path length | 12.83 edges |

Spectral norm | 11.685 |

Algebraic connectivity | 0.0052027 |

## Downloads

TSV file: | opsahl-collaboration.tar.bz2 (205.75 KiB) |

Extraction code: | opsahl.tar.bz2 (15.81 KiB) |