GRU — Gated Recurrent Unit

Fact

A gated RNN that remembers useful sequence details and forgets the rest.

In Plain Words

GRU is like a student with a tiny backpack. It keeps the test hints and dumps the cafeteria gossip.

You meet it in speech, translation, and time data. It remembers enough, but stays lighter than LSTM.

Related Concepts

• Recurrent Neural Network
• Long Short-Term Memory
• Sequence-to-Sequence Model
• Backpropagation Through Time

RNN
GRU is a gated RNN that helps reduce lost long-term memory.

LSTM
GRU is simpler than LSTM, so it often trades some power for speed.

Seq2Seq
Early Seq2Seq translation often used GRUs to encode and decode sequences.

BPTT
GRU is usually trained with BPTT after the sequence is unrolled over time.