A simple guide to Bidirectional LSTM(with Keras implementation)

A Bidirectional LSTM, or biLSTM, is a sequence processing model that consists of two LSTMs. One LSTM will carry forward pass information, Another LSTM will carry backward pass information. In bidirectional LSTM, Input flows in forward and backward directions to preserve information from the past and future. This fundamental modification makes biLSTM different than LSTM where input flow either forward or in a backward direction. With the above basic understanding, let's try to implement biLSTM on the IMDB dataset.