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Rong-Feng Guo

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Book Open access Aug 2026

Embedding-Space Orthogonal Decomposition for Robust Social Recommendation

Orthogonal Decomposition for Social Recommendation (ODSR) is proposed, an embedding-space framework that orthogonally decomposes the aggregated social message into an aligned component and an orthogonal deviation, and learns a dimension-wise vector gate to regulate the deviation under ranking supervision.

Rongfeng Guo, Yinxuan Huang, Wei Chen et al. · 0 citations
Preprint Aug 2026

From State to Action: OODA-Tool for Reliable Multi-Turn Tool Use

OODA-Tool, a typed closed-loop policy designed to mitigate state preservation from action realization, consistently improves task success across model sizes, with larger gains on smaller models and on tasks whose actions depend strongly on information accumulated across turns and prior tool results.

Rong-Feng Guo, Yin-Xuan Huang, Yusen Wu et al. · 1 citation

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