Kuaishou Tech

Nov 13, 2025 · Artificial Intelligence

Unlocking Unusual Concept Combinations in Generative AI with IMBA Loss

The paper identifies imbalanced concept distributions as the main obstacle to arbitrary concept‑combination in text‑to‑image/video generation, proposes the token‑level IMBA Distance and a lightweight IMBA Loss that adaptively re‑weights training tokens, and demonstrates through extensive experiments and a new Inert‑CompBench benchmark that this loss dramatically improves compositional ability without extra data.