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RippleNet

This repository is the implementation of RippleNet (arXiv):

RippleNet: Propagating User Preferences on the Knowledge Graph for Recommender Systems
Hongwei Wang, Fuzheng Zhang, Jialin Wang, Miao Zhao, Wenjie Li, Xing Xie, Minyi Guo
The 27th ACM International Conference on Information and Knowledge Management (CIKM 2018)

RippleNet is a deep end-to-end model that naturally incorporates the knowledge graph into recommender systems. Ripple Network overcomes the limitations of existing embedding-based and path-based KG-aware recommendation methods by introducing preference propagation, which automatically propagates users' potential preferences and explores their hierarchical interests in the KG.

A PyTorch re-implementation of RippleNet by Qibin Chen et al. is here.

Files in the folder

  • data/
    • book/
      • BX-Book-Ratings.csv: raw rating file of Book-Crossing dataset;
      • item_index2entity_id.txt: the mapping from item indices in the raw rating file to entity IDs in the KG;
      • kg.txt: knowledge graph file;
    • movie/
      • item_index2entity_id.txt: the mapping from item indices in the raw rating file to entity IDs in the KG;
      • kg_part1.txt and kg_part2.txt: knowledge graph file;
      • ratrings.dat: raw rating file of MovieLens-1M;
  • src/: implementations of RippleNet.

Required packages

The code has been tested running under Python 3.6.5, with the following packages installed (along with their dependencies):

  • tensorflow-gpu == 1.4.0
  • numpy == 1.14.5
  • sklearn == 0.19.1

Running the code

$ cd src
$ python preprocess.py --dataset movie (or --dataset book)
$ python main.py --dataset movie (note: use -h to check optional arguments)