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Diffusion Models

2 GoKawiil briefs on this topic

Researchers explain why AI-generated food images look so unappetizing

AI experts say the strange, unsettling appearance of AI-generated food photos stems from how diffusion models build images—starting with noise and forming rough shapes before adding fine texture. When the underlying structure is wrong, as with malformed hands, the model still layers convincing-looking detail on top, producing food that looks structurally off despite realistic textures. Researchers from Oxford and the University of Naples note these models also struggle with thin, continuous shapes, compounding the issue.

Continuous diffusion language models see renewed research momentum

A wave of new research papers is reviving interest in continuous diffusion techniques for language generation, an approach that had largely been overtaken by discrete diffusion and autoregressive methods in recent years. The author reviews this resurgence, tracing why continuous diffusion for text fell out of favor and why several research groups are now revisiting it as an alternative to token-by-token autoregressive generation.