Although a significant number of studies (e.g. (Huang et al., 2013; Ganguly et al., 2015; Zheng and Callan, 2015; Guo et al., 2016; Zamani and Croft, 2016;<cite> Dehghani et al., 2017</cite>; ) try to apply neural networks in IR, there have been few studies reporting the performance that is comparable to state-of-the-art IR models.