@article{optimizationmatrixfactorization,
  title = {Optimization Matrix Factorization Recommendation Algorithm Based on Rating Centrality},
  author = {Wu Zhipeng and Tian Hui and Zhu Xuzhen and Wang Shuo},
  year = {2018},
  eprint = {1806.07678},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1806.07678v1},
}