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JianXiang Xiang

3 accepted papers

2026

GeoRK2: Geometry-Guided Runge-Kutta Integration for Diffusion Transformer Acceleration

CVPR 2026

Diffusion transformer models deliver state-of-the-art image synthesis quality but suffer from prohibitively slow iterative sampling. Although reducing sampling steps accelerates inference, aggressive step schedules often distort intermediate features and degrade sample fidelity. We present GeoRK2, a

Cited by 0SourceScholar
2026

SPICE: Submodular Penalized Information–Conflict Selection for Efficient Large Language Model Training

ICLR 2026poster

Information-based data selection for instruction tuning is compelling: maximizing the log-determinant of the Fisher information yields a monotone submodular objective, enabling greedy algorithms to achieve a $(1-1/e)$ approximation under a cardinality budget. In practice, however, we identify allevi…

Cited by 0SourceScholar
2024

DiffusionDialog: A Diffusion Model for Diverse Dialog Generation with Latent Space

COLING 2024main

In real-life conversations, the content is diverse, and there exist one-to-many problems that require diverse generation. Previous studies attempted to introduce discrete or Gaussian-based latent variables to address the one-to-many problem, but the diversity is limited. Recently, diffusion models h…

Cited by 3SourcePDFScholar