TOPAPEC/cross-domain-recsys-interactions

Cross-Domain RecSys Interactions（跨域推荐系统交互）是一个统一、整数索引的交互语料库，整合自15个推荐来源，用于基础或顺序推荐系统。它包含三个附加版本（v1、v2、v3），这些版本共享同一模式和一个全局索引空间，因此读取所有版本可得到完整、无冲突的语料库。数据集仅包含交互数据（无模型或嵌入），项文本作为标题和描述元数据单独提供，可通过item_idx进行1:1连接。完整语料库包含882,999,680次交互、约52.6百万用户和约12.1百万项。One unified, integer-indexed interaction corpus glued from 15 recommendation sources for foundation / sequential recommenders. Built in 3 additive versions that share one schema and one global index space, so reading all of them together = the full corpus, collision-free. Interactions only — no model, no embeddings. Item text is provided separately as title+description metadata, joinable 1:1 by item_idx. Full corpus: 882,999,680 interactions · ~52.6M users · ~12.1M items.