collaborators

6 papers

cs.CL2026

D-Loop: Looped Diffusion Drafting for Speculative Decoding

Kecheng Chen, Yuyang He, Cheng Gong +8

Block diffusion accelerates speculative decoding by drafting multiple tokens in one forward pass. However, each position predicts a marginal distribution without observing earlier…

cs.CV2026

Visual Parallel Search: Learning to Search High-Resolution Images with Parallel Tile Inspection and Adaptive Zoom

Xijia Tao, Yihua Teng, Xinyu Fu +5

High-resolution visual question answering often fails because a multimodal model does not acquire the small, spatially localized evidence needed to answer a question. Sequential zo…

cs.AI2026

SAP: State-Guided Data Synthesis with Argument Provenance for Multi-Turn Tool Use

Zichen Tian, Jinpeng Chen, Cheng Gong +2

High-quality multi-turn tool-use data is essential for training agentic models, yet existing data synthesis methods often underrepresent the argument-level dependencies that are cr…

cs.AI2026

CoVe: Training Interactive Tool-Use Agents via Constraint-Guided Verification

Jinpeng Chen, Cheng Gong, Hanbo Li +9

Developing multi-turn interactive tool-use agents is challenging because real-world user needs are often complex and ambiguous, yet agents must execute deterministic actions to sat…

cs.AI2025

Efficient Reasoning via Reward Model

Yuhao Wang, Xiaopeng Li, Cheng Gong +4

Reinforcement learning with verifiable rewards (RLVR) has been shown to enhance the reasoning capabilities of large language models (LLMs), enabling the development of large reason…

cs.LG2025

GHPO: Adaptive Guidance for Stable and Efficient LLM Reinforcement Learning

Ziru Liu, Cheng Gong, Xinyu Fu +7

Reinforcement Learning with Verifiable Rewards (RLVR) has recently emerged as a powerful paradigm for facilitating the self-improvement of large language models (LLMs), particularl…