Fernandes, B., 		Sacenti, J., & 		Willrich, R.
(2017).
Using Implicit Feedback for Neighbors Selection: Alleviating the Sparsity Problem in Collaborative Recommendation Systems.
In <em>Anais do XXIII Simpósio Brasileiro de Sistemas Multimídia e Web</em>, (pp. 341-348). Porto Alegre: SBC.