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Symeon Papadopoulos

2 papers indexed

arxivcs.CVcs.AI2026-07-17

Test-Time Noise Guided Adaptation for Realistic Autoregressive Video Generation

Dimitrios Karageorgiou, Symeon Papadopoulos, Ioannis Kompatsiaris, Efstratios Gavves

Autoregressive video diffusion models have enabled the generation of arbitrarily long videos by removing conditioning on future frames, thus greatly improving computational efficiency. Yet, they suffer from error accumulation over time, as the denoised sequence gradually drifts a…

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arxivcs.MMcs.CV2026-06-30

Evidence Triangulation for Multimodal Fact-Checking in the Wild

Stefanos-Iordanis Papadopoulos, Zacharias Chrysidis, Christos Koutlis, Symeon Papadopoulos, Panagiotis C. Petrantonakis

The proliferation of multimedia content on social platforms has fueled multimodal misinformation, where images are used to reinforce false claims. Consequently, Multimodal Fact-Checking (MFC) has emerged as an increasingly important research area. However, current progress is hin…

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