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Author

Tong Yu

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Jul 2026

RRPO: Reference-Relative Policy Optimization with Stratified Conditional Rollouts

Across verifiable reasoning, open-ended generation, and post-SFT settings, RRPO remains competitive with verifier-based optimization, improves over weakly supervised baselines, and provides additional gains after supervised fine-tuning.

Yuxin Xiong, Xun-Yi Jiang, Rohan Surana et al. · 0 citations
#artificial intelligence Preprint Aug 2026

Toward Latent Language Model Skills Steering and Optimization: An Empirical Study

This empirical study investigates whether procedural LLM skills can be represented as directions in activation space and whether vector-space operations over these directions can express skill-level behaviors and finds that procedural skills admit a vector-space representation.

Xun-Yi Jiang, Jun-Da Wu, Yuxin Xiong et al. · 0 citations
#artificial intelligence Review Aug 2026

Agent2UCB: Agentic System for Generative Engine Optimization

Agent2UCB is demonstrated, an agentic GEO system that autonomously improves content visibility through customized, feedback-driven optimization and provides a lightweight, text-only SEO readiness evaluation covering readability, topical coverage, and EEAT-style credibility.

Sheldon Yu, Rui Wang, Tong Yu et al. · 0 citations
Jul 2026

Filesystem-Based Memory for LLM Agents: Organization, Evolution, and Sustainability

The study turns the filesystem default from an assumption into a design space for agent memory, and turns the model is not the only lever over a store's shape: changing the tool set alone reshapes the store as strongly as swapping the model.

Sizhe Zhou, Sheldon Yu, Hui Wei et al. · 0 citations
Jul 2026

Can We Break LLMs Out of Self-Loops? Fine-Grained Reasoning Control with Activation Steering

This work treats each reasoning trace as a sequence of latent states rather than an unstructured texts, and investigates whether inference time interventions can provide fine-grained control over the self-looping reasoning process.

Sheldon Yu, Tong Yu, Xunyi Jiang et al. · 0 citations

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