Author

Xiaoyang Chen

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Book Open access Aug 2026

UniRank: A Unified Framework for Efficient Multi-Objective LLM Ranking in Industrial Search

This paper proposes UniRank, a Homogeneous Scaling framework that consolidates multiple ranking objectives into a single, unified generative model and introduces two paradigmatic innovations: Parallel Prediction via Task-Specific Anchors and Reinforcement Learning Optimization with Posterior CoT.

De-Zhi Ye, Junwei Hu, Xiaoyang Chen et al. · Proceedings of the 32nd ACM... · 0 citations

#natural language process... Preprint Aug 2026

Beyond Polarization: The Generative Constraint of Chain-of-Thought in Pointwise Reranking

These findings suggest that, within the pointwise scoring paradigm, routing continuous relevance semantics through discrete text constrains ranking signal resolution reveals a bottleneck that is stable and difficult to overcome under current standard methods, rather than an easily resolvable training bias.

Xiaoyang Chen, Jie Liu, Hai-Jin Liang et al. · 0 citations