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Jun Xiao

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#computer vision Preprint Oct 2026

ViSkill: Reinforcing VLM Agents with Evolving Visual-Native Skills

Skill-augmented agents improve sample efficiency by distilling successful trajectories into reusable strategies. Yet most existing approaches remain text-centric, linearizing spatial layouts and action-state correspondences into language that loses critical geometric structure. Recent efforts have begun incorporating v...

Hong-Xing Li, Ding-Ming Li, Yi-Xin Li et al. · 0 citations
#computer vision Preprint Oct 2026

SpaceCast-Bench: Evaluating Predictive Spatial Reasoning in Vision-Language Models

Existing spatial reasoning benchmarks mainly test spatial perception: reading off relations already visible in the input. Yet real-world spatial intelligence demands predictive spatial reasoning: constructing a scene from observations, anticipating how an intervention changes it, and reasoning about the unseen outcome....

Hong-Xing Li, Jin-Yue Su, Ding-Ming Li et al. · 0 citations
Preprint Sep 2026

Learning from Reliable Negatives: Confidence-Anchored Test-Time Adaptation for GUI Grounding

Graphical User Interface (GUI) grounding is essential for autonomous agents to map natural language instructions to precise screen coordinates. However, existing supervised fine-tuning and reinforcement learning methods are constrained by the high cost of annotation, creating a scalability bottleneck. In this paper, we...

Yi-Zhou Liu, Fei Tang, Yuchen Yan et al. · 0 citations
#artificial intelligence Preprint Sep 2026

IterSynth: Rethinking Deep Search Agents via Role-Decoupled Iterative Synthesis

Deep search requires LLM agents to decompose complex queries, search for evidence, and synthesize grounded answers, yet existing ReAct-style agents suffer from two limitations: role coupling, where one policy must handle planning, evidence use, and synthesis; and context accumulation, where growing search histories int...

Xing-Yu Wu, Yuchen Yan, Zhengxi Lu et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Reflect, Revise, Reuse: Training-Free Skill Evolution for GUI Agents

GUI agents execute long-horizon tasks on dynamic graphical user interfaces, where pop-ups, delayed loads, and relocated widgets routinely invalidate plans fixed before execution. Recent agent-skill frameworks encapsulate reusable procedural knowledge to mitigate this, yet existing skill designs are largely developed wi...

Bo-Fan Chen, Bo-Xuan Zhang, Fei Tang et al. · 1 citation
Review Aug 2026

BrowserForge: Scaling Web Episode via Parallel Browser Sandboxes

BrowserForge is presented, a framework that generates web interaction data at scale by driving many browser sandboxes in parallel over the open web, and fine-tuning a compact multimodal model on this corpus raises its success rate on the live Online-Mind2Web from 25.66% to 33.33% and consistently improves step accuracy...

Fei Tang, Hua-Wen Shen, Zhiqiong Lu et al. · 0 citations
Preprint Aug 2026

TTPO: Test-Time Policy Optimization

Test-Time Policy Optimization is proposed, an asymmetric objective that distills agreeing rollouts via OPSD and penalizes disagreeing rollouts with Grouped RL and Token-level selection further refines both branches: distillation down-weights already-converged positions, while RL penalizes only confident errors.

Ao-Han Wang, Zhengxi Lu, Jian-Ze Wang et al. · 2 citations
#natural language process... Preprint Aug 2026

PaperGym: Rubric-Centered Evolution for Research-Plan Generation

This work introduces PaperGym, a unified framework that turns each research paper into a complete training environment, and releases the pipeline, the 20,000-instance corpus PaperGym-20k, and the benchmarks PaperGym-Innov and PaperGym-Design.

Yu-Han Wang, Zhengxi Lu, Yuchen Yan et al. · 2 citations
Conference Open access 2026

Experience-driven Multi-turn Reinforcement Learning for GUI Agents

EMPO achieves substantial gains over the base model and achieves competitive performance against strong baselines such as UI-TARS-7B and GPT-4o, demonstrating better generalization than prior single-turn RL approaches.

Zhengxi Lu, Jiabo Ye, Fei Tang et al. · 0 citations

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