Long Short-Term Memory

LSTM is the acronym for Long Short-Term Memory.

LSTM stands for Long Short-Term Memory, which is a type of Recurrent Neural Network (RNN) architecture designed to address the limitations of standard RNNs, particularly in learning long-range dependencies in sequential data. LSTM was introduced by Sepp Hochreiter and Jürgen Schmidhuber in 1997.

LSTMs achieve this improvement by incorporating specialized memory cells and gating mechanisms that regulate the flow of information within the network. These gates control when information is written to, read from, or forgotten by the memory cells, allowing the LSTM to learn and retain long-term dependencies more effectively.

There are three main gates in an LSTM:

  1. Input gate: Determines how much of the new input should be added to the memory cell.
  2. Forget gate: Controls how much of the previous memory cell state should be retained or forgotten.
  3. Output gate: Decides how much of the updated memory cell state should be used for the current output.

These gates help LSTMs selectively remember or forget information as needed, enabling them to model complex, long-range dependencies in time-series data or sequences. LSTMs have been successfully applied to a wide range of applications, including natural language processing, speech recognition, machine translation, and time-series prediction.

  • Abbreviation: LSTM

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