Author

Jing-Han Cao

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Preprint Sep 2026

UNMATCH: Selective Unbalanced Token-Patch Matching for Forensic Image-Claim Verification

Contextual image misuse pairs an image with a misleading claim. We study image-claim correspondence in fact-checked pairs containing out-of-context reuse, visual manipulation, or both. Existing pair-based detectors often compress the two modalities into a global compatibility score or learn a highly flexible interactio...

Xin-Jin Li, Lian Lian, Yuan-Zhe Yang et al. · 0 citations

#machine learning Preprint Sep 2026

GAUDI: Geometry-Aware Diffusion for Calibrated Air-Quality Time-Series Imputation

A block-specific, GAUDI-aligned conditional diffusion imputer is studied that retains temporal and feature processing, visible-value and mask conditioning, variable identity, and diffusion-step information, while suppressing absolute time-position side embeddings.

Xin-Jin Li, Yu-Di Xia, Calvin Chang Liu et al. · 0 citations