The implementation of twin networks in the 'Modeling Contemporaneous Basket Sequences with Twin Networks for Next-Item Recommendation'paper (IJCAI'18)

1. Input format(s):

• For each CBS instance, the basket sequences and the grouth-truth item are separated by '=>'
  • e.g., support_basket_sequence=>target_basket_sequence=>ground-truth_item_id
• For each basket sequence, baskets {b_i} are separated by '|'
  • e.g., b_1|b_2|b_3|...|b_n
• For each basket b_i, items {v_j} are separated by a space ' '
  • e.g., v_1 v_2 v_3 ... v_m

2. How to run: main_gpu.sh

• Use --train_mode to enable the training mode
• Use --prediction_mode to generate evaluation metrics
• We support 5 main model types namely: bseq_support, bseq_target, cbs_sn, cbs_cfn, cbs_dfn

3. How to collect results from different seeds: Use collect_result.sh

4. If you find the code useful in your research, please cite:

@inproceedings{le2018cbs,
  title={Modeling Contemporaneous Basket Sequences with Twin Networks for Next-Item Recommendation},
  author={Le, Duc-Trong, Lauw, Hady W and Fang, Yuan},
  booktitle={Proceedings of the International Joint Conference on Artificial Intelligence},
  year={2018},
}

Requirements

• Python == 3.6
• Tensorflow == 1.14
• scipy.sparse == 1.3.0