torch_geometric.datasets.MovieLens1M

class MovieLens1M(root: str, transform: Optional[Callable] = None, pre_transform: Optional[Callable] = None, force_reload: bool = False)[source]

Bases: InMemoryDataset

MovieLens 1M异构评分数据集，由GroupLens Research从MovieLens网站收集，包含电影（3,883个节点）和用户（6,040个节点），它们之间大约有100万条评分。用户对电影的评分可作为真实标签。用户和电影的特征根据“基于图神经网络的归纳矩阵补全”论文进行编码。

Parameters:

  • root (str) – Root directory where the dataset should be saved.

  • transform (callable, optional) – A function/transform that takes in an torch_geometric.data.HeteroData object and returns a transformed version. The data object will be transformed before every access. (default: None)

  • pre_transform (callable, optional) – A function/transform that takes in an torch_geometric.data.HeteroData object and returns a transformed version. The data object will be transformed before being saved to disk. (default: None)

  • force_reload (bool, optional) – Whether to re-process the dataset. (default: False)

统计:

节点/边类型

#节点/#边

#特性

#任务

电影

3,883

18

用户

6,040

30

用户-电影

1,000,209

1

1