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Defa Zhu

6 accepted papers

2026

UltraMemV2: Memory Networks Scaling to 120B Parameters with Superior Long-Context Learning

ICLR 2026poster

While Mixture of Experts (MoE) models achieve remarkable efficiency by activating only subsets of parameters, they suffer from high memory access costs during inference. Memory-layer architectures offer an appealing alternative with very few memory access, but previous attempts like UltraMem have on…

Cited by 0SourcecodeScholar
2025

Expert Race: A Flexible Routing Strategy for Scaling Diffusion Transformer with Mixture of Experts

ICML 2025poster

Diffusion models have emerged as mainstream framework in visual generation. Building upon this success, the integration of Mixture of Experts (MoE) methods has shown promise in enhancing model scalability and performance. In this paper, we introduce Race-DiT, a novel MoE model for diffusion transfor…

Cited by 0SourcePDFScholar
2025

Over-Tokenized Transformer: Vocabulary is Generally Worth Scaling

ICML 2025poster

Tokenization is a fundamental component of large language models (LLMs), yet its influence on model scaling and performance is not fully explored. In this paper, we introduce Over-Tokenized Transformers, a novel framework that decouples input and output vocabularies to improve language modeling perf…

Cited by 2SourcePDFScholar