@inproceedings{yan-etal-2015-tackling, title = "Tackling Sparsity, the Achilles Heel of Social Networks: Language Model Smoothing via Social Regularization", author = "Yan, Rui and Li, Xiang and Liu, Mengwen and Hu, Xiaohua", editor = "Zong, Chengqing and Strube, Michael", booktitle = "Proceedings of the 53rd Annual Meeting of the Association for Computational Linguistics and the 7th International Joint Conference on Natural Language Processing (Volume 2: Short Papers)", month = jul, year = "2015", address = "Beijing, China", publisher = "Association for Computational Linguistics", url = "https://preview.aclanthology.org/fix-sig-urls/P15-2103/", doi = "10.3115/v1/P15-2103", pages = "623--629" }