Yifeng He

Accelerated PEXIT Analysis with Neural Network Surrogates for 1-bit Massive MIMO Protograph LDPC Design

Yifeng He, Hiroshi Tanaka, Zhemin Duan

On the Incompatibility of Extrinsic Information Transfer Analysis and Masked Neural Network Detectors in Quantized Massive MIMO

Yifeng He, Hiroshi Tanaka, Zhemin Duan

Is Progressive Disclosure All You Need for Long-Context Agents?

Yifeng He, Yinzhe Zhao, Jicheng Wang, Hao Chen

Long-document question answering usually forces a choice between loading the whole document into the context window and bolting on a separate retriever. Agentic AI suggests a broader option, giving the agent the document path and letting it decide how and what to read. Agent Skil…Read more

LightCrafter: PBR-Conditioned Video Diffusion Refinement for Controllable and Consistent Relighting

Zixin Guo, Yehonathan Litman, Yifeng He, John Miller, Chuhan Chen, Deva Ramanan

Video relighting requires balancing long-form temporal consistency with a physically grounded understanding of light transport, which depends on accurate estimation of intrinsic scene properties such as materials, geometry, and illumination. Existing methods follow two paradigms:…Read more