Changxing Ding

2 papers indexed

arxivcs.CV2026-07-07

SparseCtrl-HOI: Sparse Temporal Control for Human-Object Interaction Video Generation

Shenbo Xie, Mingrui Cai, Xu Yang, Yifei Liu, Changxing Ding

Human-Object Interaction (HOI) video generation aims to synthesize realistic videos of humans manipulating diverse objects, serving as a promising avenue for AI-driven live streaming e-commerce. A primary obstacle in this domain lies in the complexity of modeling fine-grained phy…

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arxivcs.LG2026-07-01

Beyond Activation Alignment:The Alignment-Diversity Tradeoff in Task-Aware LLM Quantization

Fei Wang, Chao Xue, Taoran Liu, Li Shen, Ye Liu, ChangXing Ding

Mixed-precision quantization (MPQ) has become a key technique for deploying large language models under stringent memory and compute constraints. We first identify a phenomenon that we term the Perplexity Illusion: layers ranked as important by perplexity-based sensitivity show l…

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