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	Multimodal Recurrent Neural Network	Multimodal Convolutional Neural Network
Ämnesområde	Djupinlärning	Djupinlärning
Familj	Machine learning	Machine learning
Ursprungsår	2011–2015	2011
Upphovsperson	Multiple contributors; prominently Ngiam et al. (2011) and Vinyals et al. (2015)	Ngiam, J. et al. / multiple groups
Typ	Multimodal sequence model (recurrent)	Multimodal deep learning model
Ursprungskälla	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.	Ngiam, J., Khosla, A., Kim, M., Nam, J., Lee, H., & Ng, A. Y. (2011). Multimodal deep learning. In Proceedings of the 28th International Conference on Machine Learning (ICML), 689–696.
Alias	MM-RNN, multimodal sequence model, cross-modal RNN, multimodal recurrent encoder-decoder	MM-CNN, multimodal CNN, multi-input CNN, cross-modal convolutional network
Närliggande	6	5
Sammanfattning	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 Multimodal Convolutional Neural Network (MM-CNN) processes and fuses two or more input modalities — such as images and text, or video and audio — through dedicated convolutional branches, learning a shared representation that captures complementary signals from each source. The fused representation drives a downstream task such as classification, regression, or retrieval.