Recurrent Neural Network

Recurrent neural network or RNN is important and heavily used network in Natural Language Processing. RNNs is sequential network where output from previous steps feed as input to current step. RNN has concept of memory through which it able to remember the information that has been process before. Before diving into Technical stuff let's understand why do we use RNN? In our feed forward neural network two successive inputs are independent of each other means input at time t has no relation with input at time t-1 but in case we want to predict next word in sentence, it required previous information.