A recurrent neural network for step-by-step information, like speech or text.
LSTM is like a friend watching a mystery show with you. It ignores the chip ads, but remembers the muddy shoe for episode ten.
It was used for speech and time-series data. In early text AI, it helped early clues matter later.
Neural-network
LSTM is a classic Neural-network member for ordered data.
Seq2Seq
Early Seq2Seq often used LSTM to encode and decode sequences.
Transformer
Transformer later replaced LSTM in many text tasks.
STT
LSTM was used for years in STT and other time-based tasks.