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Ethan Mollick praises Midjourney for its unique ability to generate strange and atmospheric images and short animations, noting that no other AI image generator can match it, despite the company's pivot to healthcare.
This paper introduces Implicit Preference Alignment (IPA), a data-efficient post-training framework that improves hand motion generation in human image animation without requiring paired preference data. It utilizes implicit reward maximization and hand-aware local optimization to enhance generation quality while reducing data curation costs.