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recsyspy's Introduction

recsyspy

经典推荐算法实现

  • 基于scipy 稀疏矩阵构建数据模型
  • 算法过程模块化,易于扩展
  • 使用k折交叉验证测试算法

算法

矩阵分解模型 RMSE MAE
Baseline 0.946 0.742
SVD 0.931 0.731
SVDPlusPlus 0.927 0.726
Explicit ALS 1.199 0.903
Implicit ALS 2.752 2.525
邻居模型 RMSE MAE
Itemcf 1.029 0.802
WeightedSlopOne 1.043 0.835

数据集

  • MovieLens

依赖

  • scipy
  • numpy

参考paper

  • Yehuda Koren. Factorization meets the neighborhood: a multifaceted collaborative filtering model
  • Matrix factorization techniques for recommender systems
  • Advances in Collaborative Filtering
  • Slope one predictors for online rating-based collaborative filtering

recsyspy's People

Contributors

lxmly avatar

Watchers

James Cloos avatar daiwei avatar

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