Prismatic Synthesis: Gradient-based Data Diversification Boosts Generalization in LLM Reasoning - Jung, Jaehun; Han, Seungju; Lu, Ximing; Hallinan, Skyler; Acuna, David; Prabhumoye, Shrimai; Patwary, Mostofa; Shoeybi, Mohammad; Catanzaro, Bryan; Choi, Yejin (Advances in Neural Information Processing Systems, 2025)