Multimodal Learning: Transformers and Boltzmann Machines

Multimodal learning definition and motivation

Multimodal learning is a deep learning approach that integrates and processes multiple data modalities—such as text, audio, images, and video—so the model can form a more complete understanding of complex inputs. By combining complementary information from different sources, multimodal systems can improve performance on tasks like visual question answering, cross-modal retrieval, text-to-image generation, aesthetic ranking, and image captioning. The motivation for multimodal learning is that real-world data is often naturally multi-source, and each modality carries different (and sometimes non-overlapping) information. For example, an image caption can convey details not directly visible in the image, while images can express information that may be difficult to infer from text alone. Multimodal learning is therefore motivated by the need to jointly represent and fuse information across modalities so the model can capture the combined meaning rather than treating each modality in isolation.

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Modalities and joint representation need

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