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. Author manuscript; available in PMC: 2020 Aug 10.
Published in final edited form as: Adv Neural Inf Process Syst. 2019 Dec;32:15696–15705.

Figure 1:

Figure 1:

Example LSTM hidden state activity for a network trained on sentiment classification. Each panel shows the evolution of the hidden state for all of the units in the network for positive (left) and negative (right) example documents over the first 150 tokens. At a glance, the activation time series for individual units appear inscrutable.