ORBIT - Open Recommendation Benchmark for Reproducible Research with Hidden Tests - He, Jingyuan; Liu, Jiongnan; Oberoi, Vishan; Wu, Bolin; Jagadeesh Patel, Mahima; Mao, Kangrui; Shi, Chuning; Lee, I-Ta; Overwijk, Arnold; Xiong, Chenyan (Advances in Neural Information Processing Systems, 2025)