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Jingbo Zhu

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#natural language process... Preprint Sep 2026

Complementary Roles of Activation and Parametric Memory in Few-Shot Learning

At test time, large language models (LLMs) can encode historical information in activation memory (i.e., KV caches) and parametric memory (i.e., updated parameters). While activation memory is generally considered effective for factual recall and parametric memory for learning new tasks, their interplay remains unclear...

Miao-He Niu, Run-Song Zhao, Xin-Yu Liu et al. · 0 citations
Preprint Aug 2026

RRC: Unlocking Generative Reward Models in LLM Reinforcement Learning via Ranking-Based Reward Construction

Recent advances in reward modeling show a paradigm shift from discriminative reward models to generative reward models. However, despite their strong capabilities in response ranking, generative reward models have not realized their potential in reinforcement learning (RL). Our analysis reveals that this limitation ari...

Chenglong Wang, Ziming Zhu, Yifu Huo et al. · 1 citation
Preprint Aug 2026

Learning from Environmental Feedback: Credit Assignment across Multiple Timescales for Agentic Reinforcement Learning

Environmental Feedback-based Credit Assignment (EFCA), a multi-timescale credit assignment approach for long-horizon agentic RL that complements the long-term outcome signal with two environment-grounded process signals: a short-term feedback signal that captures the immediate effect of the current action and a medium-...

Yifu Huo, Shunjie Xing, Chenglong Wang et al. · 1 citation
Jul 2026

FlowCTS: On-policy Continuous Trajectory Supervision of Flow Models

Flow Continuous Trajectory Supervision (FlowCTS), which matches subsequent student and reference trajectories initialized from the same student-visited state to derive a temporally weighted velocity-matching upper bound and discretize it into practical objectives parameterized by the number of supervision steps.

Kaiyang Ye, Yuan Ge, Junxia Zhang et al. · 0 citations
Preprint Aug 2026

Better Decomposition, Free Aggregation: A Synthesizer-Folding Framework for Multilingual Multi-Hop Question Answering

The method Syfer is introduced, a synthesizer-folding framework for multilingual multi-hop question answering that defers translation rather than applying it by default and attains competitive accuracy while striking a favourable balance between performance and computational cost.

Yilin Wang, Yuchun Fan, Weidong Bao et al. · 0 citations
Preprint Jul 2026

ToFu: A White-Box, Token-Efficient Agent Harness for Researchers

ToFu is presented, an agentic harness for researchers that reads your codebase, edits files, runs commands, and integrates with your development tools and provides a white-box agentic harness that allows researchers to inspect, modify, and evaluate its orchestration logic, tool-use behavior, and harness design.

Junhao Ruan, Yuan Ge, Bei Li et al. · 0 citations

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