**MovieLens 1M**

# MovieLens 1M

## About this network

This bipartite network contains one million movie ratings from http://movielens.umn.edu/. Left nodes are users and right nodes are movies. An edge between a user and a movie shows that the user has rated the movie.

## Network info

Code | M2 |

Category | ⬤ Rating |

Data source | http://www.grouplens.org/node/73 |

Vertex type | User, movie |

Edge type | Rating |

Format | Bipartite |

Edge weights | Ratings |

Metadata | Timestamps |

Size | 15,786 = 9,746 + 6,040 vertices (users + movies) |

Volume | 1,000,209 edges (ratings) |

Average degree (overall) | 205.26 edges / vertex |

Average user degree | 165.60 edges / vertex |

Average movie degree | 269.89 edges / vertex |

Fill | 0.044684 edges / vertex^{2} |

Maximum degree | 3,428 edges |

Negativity | 43.5% |

Wedge count | 602,009,923 |

Claw count | 226,612,176,337 |

Square count | 16,671,201,295 |

4-tour count | 135,780,401,238 |

Power law exponent (estimated) with d_{min} | 1.8010 (d_{min} = 60) |

Gini coefficient | 53.3% |

Relative edge distribution entropy | 93.1% |

Assortativity | –0.20544 |

Diameter | 6 edges |

90-percentile effective diameter | 2.86 edges |

Mean shortest path length | 2.52 edges |

Spectral norm | 177.58 |

Algebraic connectivity | 0.0059406 |

Preferential attachment exponent | 0.96375 (ε = 2.8310) |

## Downloads

TSV file: | movielens-1m.tar.bz2 (5.21 MiB) |

Extraction code: | movielens-1m.tar.bz2 (15.79 KiB) |

## References

[1] | Movielens 1m network dataset -- KONECT, April 2017. [ http ] |

[2] | GroupLens Research. MovieLens data sets. http://www.grouplens.org/node/73, October 2006. |