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Yuxuan Lou

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#artificial intelligence Preprint Oct 2026

DivMoE: Fine-Grained MoE Upcycling via Cross-Domain Expert Composition

Mixture-of-Experts (MoE) architectures have become essential for scaling large language models, with recent work demonstrating the benefits of fine-grained expert designs. Training such models from scratch is expensive, and sparse upcycling from pre-trained dense models is an attractive alternative. However, we identif...

Yuxuan Lou, Kai Yang, Geng Zhang et al. · 0 citations
#artificial intelligence Preprint Sep 2026

LLaDA-Image: Building Strong Image Generators with Fully Open Training Recipes

We introduce LLaDA-Image, a unified framework that pairs a 6B Diffusion Transformer (DiT) trained from scratch with a frozen vision-language understanding module built on the LLaDA2.0-Mini diffusion language model backbone. Instead of relying heavily on paired image-text data from the beginning, we first build a strong...

Chu-Yan Chen, Hao-Xin Chen, Kun Chen et al. · 2 citations

OrScale: Orthogonalised Optimization with Layer-Wise Trust-Ratio Scaling

A dynamic per-layer scalar derived by adapting the LARS/LAMB trust-ratio principle to the orthogonalized setting, where the standard denominator candidates---the raw momentum norm or the polar-factor norm---either live in the wrong unit space or carry no update-scale information.

Yuxuan Lou, Yang You · 1 citation

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