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Hong-Yi Fu

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#artificial intelligence Preprint Sep 2026

Guide, Then Let Go: Gap-Adaptive Teacher Scheduling for Sparse-Reward Agentic RL

Reinforcement learning for long-horizon agents typically relies on sparse outcome-based rewards. This leads to a severe cold-start problem, as early-stage policies often fail to solve sampled tasks, leaving little useful reward signal for learning. To mitigate this problem, we use on-policy distillation (OPD) to provid...

You-Ling Huang, Tian-Kuo Xu, Jia-Ji Liu et al. · 0 citations
#natural language process... Preprint Sep 2026

GSM: Efficient Language Modeling with Shared Global State

The Global State Model (GSM), a causal encoder--decoder architecture that concentrates the selection and aggregation of long-range information in the encoding stage, is introduced, offering a shared-state architecture for efficient language modeling.

Yun Zheng, Bin Wen, Xiao-Jie Wang et al. · 0 citations
Preprint Aug 2026

Thinking Beyond Videos: Unifying Video Reasoning and Deep Research for Open-World Video Agents

Open-world video understanding often requires a model to locate sparse visual evidence and acquire external knowledge that is absent from the video and its parametric memory. While Thinking-with-Videos enables active temporal perception and Deep Research supports multi-step information seeking, the two capabilities are...

Wenqi Liu, Shi-Jie Ma, Yun-Xiao Wang et al. · 0 citations
#natural language process... Preprint Sep 2026

Lngram v2: Latent N-Gram Memory with Interpretable Discrete Representations

Analysis shows that Lngram v2 substantially reduces both total and activated memory parameters while maintaining or improving language modeling performance, and shows that its discrete IDs preserve substantial semantic structure of continuous hidden states, enabling semantic recovery from IDs alone and stable ID--seman...

Yun Zheng, Bin Wen, Xiao-Jie Wang et al. · 0 citations
Preprint Jul 2026

KAT-Coder-V2.5 Technical Report

We present KAT-Coder-V2.5, a coding-focused agentic model trained to act autonomously inside real, executable repositories rather than as a single-turn code generator. Its capability is bottlenecked less by model scale than by the scarcity of reproducible environments, verifiable rewards, and high-value trajectories, w...

Bofeng Huang, Fengxiang Li, Hao Xu et al. · 2 citations

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