Yin Song

We present MegaBeam-Mistral-7B1, a language model that supports 512K-token context length. Our work addresses practical limitations in long-context training, supporting real-world tasks such as compliance monitoring and verification. Evaluated on three long-context benchmarks, our 7B-parameter model demonstrates superior in-context learning performance on HELMET and robust retrieval and tracing capability on RULER.

We describe a series of experiments reconstructing dynamic VFX scenes from multi-camera and moving-camera footage using Gaussian Splatting, built from open-source components. Through this process we report what worked, what broke, and what we learned, spanning an extension of Shape of Motion for moving cameras, an evaluation harness for 4D Gaussian Splatting, a baseline study, and algorithmic contributions targeting core limitations of existing methods.

Between January 1, 2019, and December 31, 2024, 7,872 ILI samples were collected from designated hospitals in Jiaxing, and influenza A/H3N2 virus was detected in these samples. Among these samples, 636 influenza A/H3N2 viruses were identified, and six epidemic peaks were observed from 2019 to 2024. Out of the six epidemic peaks, two were observed in 2019, two in 2022, and two in 2023 (Fig. 1A).