مقایسهٔ روش‌ها

	شبکه عصبی بازگشتی چندوجهی	شبکه عصبی بازگشتی
حوزه	یادگیری عمیق	یادگیری عمیق
خانواده	Machine learning	Machine learning
سال پیدایش	2011–2015	1986–1990
پدیدآور	Multiple contributors; prominently Ngiam et al. (2011) and Vinyals et al. (2015)	Rumelhart, D. E.; Elman, J. L.
نوع	Multimodal sequence model (recurrent)	Sequential neural network
منبع بنیادین	Vinyals, O., Toshev, A., Bengio, S., & Erhan, D. (2015). Show and Tell: A Neural Image Caption Generator. IEEE Conference on Computer Vision and Pattern Recognition (CVPR), pp. 3156–3164.	Elman, J. L. (1990). Finding structure in time. Cognitive Science, 14(2), 179–211.
نام‌های دیگر	MM-RNN, multimodal sequence model, cross-modal RNN, multimodal recurrent encoder-decoder	RNN, Elman network, Jordan network, simple recurrent network
مرتبط	6	3
خلاصه	A Multimodal Recurrent Neural Network combines inputs from two or more data modalities — such as images, text, and audio — within a recurrent sequence-processing framework. It encodes each modality separately, fuses the representations, and then processes the combined signal through recurrent units (RNN, LSTM, or GRU) to generate or classify sequential outputs. This design made it a foundational approach in image captioning, video description, and audio-visual speech recognition.	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.