open-vdb/lastfm-64-dot

该数据集名为lastfm-64-dot，用于基准测试和研究对象。数据集分为训练集(train)、测试集(test)和邻居集(neighbors)。训练集大小为74.537 MB，包含292385行数据，2列，列的格式为int64和list<element: float>。测试集大小为19.540 MB，包含50000行数据，2列，列的格式为int64和list<element: double>。邻居集大小为374.346 MB，包含50000行数据，8列，列的格式包括int64、list<element: int64>、list<element: double>和string。用户需遵守原始数据源的许可协议，并且该数据集按照Apache 2.0许可协议发布其地面真实部分。

The dataset named lastfm-64-dot is for benchmarking and research purposes. It is split into train, test, and neighbors sets. The train set is 74.537 MB in size, containing 292385 rows with 2 columns formatted as int64 and list<element: float>. The test set is 19.540 MB, with 50000 rows and 2 columns formatted as int64 and list<element: double>. The neighbors set is 374.346 MB, with 50000 rows and 8 columns including formats of int64, list<element: int64>, list<element: double>, and string. Users must comply with the original data sources licenses, and the ground truth part of the dataset is licensed under Apache 2.0.