Author

Yangdong Gao

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Preprint Aug 2026

NBA_Streaming: A Large-Scale Benchmark for Fine-Grained Basketball Commentary Generation in Continuous Streams

This work introduces NBA_Streaming, a large-scale benchmark for online fine-grained basketball commentary generation and proposes a causal two-stage framework that combines completion-first localization with ball-centric semantic grounding, enabling the system to identify complete events from observed streams and organ...

Li-Fang Wu, Yu-Yang Wu, Yangdong Gao et al. · 0 citations

Preprint Aug 2026

Learning from Unreachable Rewards: Hint-Conditioned Reinforcement Learning for Generative Recommendation

This work proposes Hint-Conditioned Generative Recommendation (HCGRec), a semantic-ID generative recommendation framework that recovers learning signal for such hard training instances and introduces hint-aware credit decomposition, using supervised learning to preserve item-semantic and prefix-structure alignment for...

Kang-Ning Zhang, Hao Fang, Xukun Luo et al. · 0 citations