MORPH: Generative Retrieval via Diffusion Transformer with Metric-Ordered Sequence Training and Hybrid-Policy Preference Optimization

arXiv:2606.26899 · cs.AI · Submitted 2026-06-25 · Read on arXiv

cs.AI

Submitted: 2026-06-25

Updated: 2026-10-05

Terminology

• Ablation — 2× in this paper · explained in 1 episode
• Embeddings — 2× in this paper · explained in 2 episodes
• Fine-Tuning — 1× in this paper · explained in 5 episodes
• Transformer — 1× in this paper · explained in 2 episodes

Sources

• Classifier-Free Diffusion Guidance
• Flow-GRPO: Training Flow Matching Models via Online RL
• A Content-Driven Micro-Video Recommendation Dataset at Scale
• DeepSeekMath: Pushing the Limits of Mathematical Reasoning in Open Language Models
• DanceGRPO: Unleashing GRPO on Visual Generation

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