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title = {{On the relationship between socio-economic factors and cell phone usage}},  booktitle = {Proceedings of the Fifth International Conference on Information and Communication Technologies and Development - {ICTD} {\textquotesingle}12},  }  @inproceedings{Dong:2014:IUD:2623330.2623703,  author = {Dong, Yuxiao and Yang, Yang and Tang, Jie and Yang, Yang and Chawla, Nitesh V.},  title = {{Inferring User Demographics and Social Strategies in Mobile Social Networks}},  booktitle = {Proceedings of the 20th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining},  series = {KDD '14},  year = {2014},  isbn = {978-1-4503-2956-9},  location = {New York, New York, USA},  pages = {15--24},  numpages = {10},  url = {http://doi.acm.org/10.1145/2623330.2623703},  doi = {10.1145/2623330.2623703},  acmid = {2623703},  publisher = {ACM},  address = {New York, NY, USA},  keywords = {demographic prediction, human communication, mobile social network, social strategy},  }