JD Retail Technology

May 19, 2026 · Artificial Intelligence

Spectral Disentanglement and Enhancement: Teaching Multimodal Models to Denoise and Purify

The paper introduces the Spectral Disentanglement and Enhancement (SDE) framework, which uses singular value decomposition to separate strong semantic signals, weak auxiliary signals, and noise, applies curriculum‑based spectral enhancement, and jointly optimizes a dual‑domain contrastive loss, achieving markedly improved robustness and generalization on large‑scale multimodal benchmarks.