1. Ellison NB, et al. Social network sites: definition, history, and scholarship. J Comput Mediat Commun. 2007;13(1):210–30.
2. Wang G, Wang T, Wang B, Sambasivan D, Zhang Z, Zheng H, Zhao BY. Crowds on wall street: extracting value from social investing platforms, foundations and trends in information retrieval. New York: ACM; 2014.
3. Freedman DA. Statistical models: theory and practice. Cambridge: Cambridge University Press; 2009.
4. Krizhevsky A, Sutskever I, Hinton GE. Imagenet classification with deep convolutional neural networks. In: Advances in neural information processing systems; 2012. p. 1097–105.
5. Socher R, Huang EH, Pennin J, Manning CD, Ng AY. Dynamic pooling and unfolding recursive autoencoders for paraphrase detection. Adv Neural Inf Process Syst. 2011;24:801–9.