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offline-evaluation

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【协同过滤推荐算法 | UserCF/ItemCF 实现】 搞定 UserCF+ItemCF 协同过滤推荐算法~ 数据集:(本人懒癌首选10标签/4w条):https://tianchi.aliyun.com/dataset/216549 备选数据集(30 + 标签 / 10 万条):https://tianchi.aliyun.com/dataset/215680 .核心:行为加权(pv/fav/cart/buy)→ 余弦相似度 → KNN 邻居 → Top-N → 离线评估,Precision 0.96 / 0.99、覆盖率 1.0,附 12 张可视化与双算法流程图,并落地「臻享云牧」云养殖平台。基于天池真实数据集。

  • Updated Feb 1, 2026
  • Python

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