(2011) but vary in the network architecture.
feed-forward neural network (Zheng et al., 2013), tensor neural network (Pei et al., 2014), recursive neural network (Chen et al., 2015a), long-short term memory (LSTM) (Chen et al., 2015b), as well as the combination of LSTM and recursive neural network (Xu and Sun, 2016) have been used to derive contextual representations from input character sequences, which are then fed to a prediction layer.