Code for TKDE22 paper "Modeling Dynamic User Preference via Dictionary Learning for Sequential Recommendation"

The implementation is desiged for top-N recommendations on implicit data, and thus it takes user-item pairs as input:

uid,sid,time
1,1,98765

The program requires Python 3.7+ with NumPy, Pandas and Tensorflow 1.x.

Let us assume the original user-item-timestamp triplets (for example, MovieLens datasets) are stored in user_train.csv, then it is quite simple to produce the train/validation/testing data and evaluate our S2PNM model by running

bash runme.sh

If you find our code useful for your research, please consider cite.

@article{chen2022dyna,
    author = {Chen, Chao and Li, Dongsheng and Yan, Junchi and Yang, Xiaokang},
    journal = {IEEE Transactions on Knowledge and Data Engineering},
    title = {Modeling Dynamic User Preference via Dictionary Learning for Sequential Recommendation},
    year={2022},
    volume={34},
    number={11},
    pages={5446-5458}
}