@inproceedings{chen2019lambdaopt,
  title = "$\lambda$opt: Learn to Regularize Recommender Models in Finer Levels",
  author = "Chen, Yihong and Chen, Bei and He, Xiangnan and Gao, Chen and Li, Yong and Lou, Jian-Guang and Wang, Yue",
  year = "2019",
  booktitle = "KDD 2019 ( ), Proceedings of the 25th ACM SIGKDD International Conference on Knowledge Discovery \& Data Mining",
  pages = "978--986",
}