مقایسهٔ روش‌ها

	شبکه عصبی بازگشتی	واحد تکرارشونده گیت‌دار (GRU)
حوزه	یادگیری عمیق	یادگیری عمیق
خانواده	Machine learning	Machine learning
سال پیدایش	1986–1990	2014
پدیدآور	Rumelhart, D. E.; Elman, J. L.	Cho, K., van Merrienboer, B., Gulcehre, C., Bahdanau, D., Bougares, F., Schwenk, H., & Bengio, Y.
نوع	Sequential neural network	Recurrent neural network with gating
منبع بنیادین	Elman, J. L. (1990). Finding structure in time. Cognitive Science, 14(2), 179–211.	Cho, K., van Merrienboer, B., Gulcehre, C., Bahdanau, D., Bougares, F., Schwenk, H., & Bengio, Y. (2014). Learning Phrase Representations using RNN Encoder-Decoder for Statistical Machine Translation. In Proceedings of EMNLP 2014, pp. 1724–1734.
نام‌های دیگر	RNN, Elman network, Jordan network, simple recurrent network	GRU, GRU network, gated RNN, GRU cell
مرتبط	3	3
خلاصه	A Recurrent Neural Network (RNN) is a class of neural network designed to process sequential data by maintaining a hidden state that carries information across time steps. Introduced in its modern form by Rumelhart et al. (1986) and further shaped by Elman (1990), RNNs became the dominant architecture for sequence modelling in NLP, speech, and time-series analysis before the rise of attention-based models.	The Gated Recurrent Unit (GRU), introduced by Cho et al. in 2014, is a streamlined recurrent neural network that uses two learned gates — an update gate and a reset gate — to selectively retain or discard information across time steps, enabling effective sequence modelling with fewer parameters than LSTM.