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VIS-DICT: A Visual Dictionary for Missing Modality Imputation in Social Network Depression Detection

arXiv · AI, language, vision and robotics · article · Sep 2, 2026 · UTC

Tracking social media posts can help spot early signs of depression. Recent studies show that combining text and images works better for detecting depression than using text alone. However, many social media posts do not have images, which makes it hard to use multimodal models. Most existing methods fill in missing images using retrieval or generative models that need extra training. In this paper, we introduce Vis-Dict, a dictionary-based method that builds missing visual features by linking words to average image vectors from complete training posts. These estimated visual features are then

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