Daily AI Papers Briefing (2026-04-18)

【本日の論文】1. HY-World 2.0: A Multi-Modal World Model for Reconstructing, Generating, and Simulating 3D Worlds https://huggingface.co/papers/2604.142682. RAD-2: Scaling Reinforcement Learning in a Generator-Discriminator Framework https://huggingface.co/papers/2604.153083. DR^{3}-Eval: Towards Realistic and Reproducible Deep Research Evaluation https://huggingface.co/papers/2604.146834. How to Fine-Tune a Reasoning Model? A Teacher-Student Cooperation Framework to Synthesize Student-Consistent SFT Data https://huggingface.co/papers/2604.141645. ASGuard: Activation-Scaling Guard to Mitigate Targeted Jailbreaking Attack https://huggingface.co/papers/2509.25843