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Guo-Hong Mu

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Preprint Sep 2026

KUAISHOU Explorer LLM-Rec Challenge 2026: Reasoning Generative Recommendation

A series of models are explored that connect item Semantic IDs with natural language in a unified representation space and seek to unlock the potential of natural-language chain-of-thought (CoT) reasoning for recommendation, including OneReason.

Jiang-Xia Cao, Hao Peng, Wen-Long Xu et al. · 0 citations
Jul 2026

RecoReward: Recommender-Guided Multimodal Description Generation for Recommendation

These results show that RecoReward trains the MLLM to produce item features that benefit downstream recommendation while retaining content-only serving, and shows that RecoReward-9B outperforms its Qwen3.5-9B baseline and all other evaluated models across seven recall metrics.

Guohong Mu, Yue-Yang Liu, Jiangxia Cao et al. · 0 citations
Preprint Aug 2026

Annotations as Rollouts: Efficient and Scalable Reinforcement Learning for Video MLLMs

The sample efficiency and scalability of RL post-training for video MLLMs and introduces OraRL, a decoupled advantage estimator that scales with model size and data, surpassing its backbone from 0.8B to 9B and GRPO up to 100k prompts.

Yun-Heng Li, Guo-Hong Mu, Hao Li et al. · 1 citation

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