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Jiajun Wu

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Jul 2026

LOTAPO: Leave-One-Turn Attribution for Self-Generated Process Rewards in Multi-Turn Search Reasoning

Reinforcement learning for multi-turn search reasoning typically relies on terminal outcome rewards, which cannot distinguish useful, redundant, and harmful intermediate interactions. We propose LOTAPO , a self-generated process-supervision method based on backward leave-one-turn attribution. For each search turn, LOTA...

Qiang Zhu, Jiajun Wu, Longyi Wang · 1 citation
#artificial intelligence Preprint Sep 2026

MindTopo: Can Foundation Models Reason in Topological Space?

Spatial reasoning depends not only on metric properties such as distance, angle, and shape, but also on topological relations that remain invariant under continuous deformation. Cognitive science identifies these relations as foundational to spatial understanding, yet foundation-model evaluations largely focus on metri...

Yun-Fei Ge, An-Bang Liu, Qineng Wang et al. · 0 citations
Preprint Sep 2026

One Demonstration, Many Objects: Generalizing Manipulation via Local Contact Geometry

Dexterous manipulation with multi-fingered robot hands promises human-level dexterity, but collecting large-scale dexterous robot hand data remains difficult. Learning from human demonstrations has emerged as a scalable alternative to robot teleoperation, providing strong priors on object interaction and contact strate...

Satvik Sharma, Samrat Sahoo, Huang Huang et al. · 2 citations · ⚡1
Preprint Aug 2026

TrAct: Bridging Robot Control and Visual Prediction with Visual Tracks

TrAct is proposed, a world-model-based robot decision-making framework that uses visual tracks as an intermediate interface between control and prediction, enabling more accurate world modeling and stronger robot generalization.

Zhihang Cao, Howard Ji, Kevin Zhang et al. · 3 citations
Preprint Aug 2026

FL-MAESTRO: Multi-Agent LLM Orchestration for Resource-Constrained Federated Learning

FL-MAESTRO is proposed, a multi-agent orchestrator that makes the joint runtime FL decision directly through three specialist LLM agents, one per decision dimension, and matches the accuracy of the strongest energy-aware baseline while cutting wasted round energy from over a third to near zero.

Jiajun Wu, Zirui Wang, Jiayu Zhou et al. · 0 citations
#natural language process... Preprint Aug 2026

WebWorld: The Browser as a World Model for Self-Improving Web Code

WebWorld is presented, the interface that lets a VLM prior interact with this browser-as-world-model autonomously and decides which interactions become supervision and reaches the level of strong frontier systems such as Kimi-K2.6 and GPT-5.4 on interactive HTML generation.

Jia-Jun Wu, Jian Yang, Ya-Xin Du et al. · 0 citations
Jul 2026

Masked Visual Actions for Unified World Modeling

Masked Visual Actions is introduced, a pixel-space control interface that expresses action as a partially revealed trajectory of an arbitrary entity in a video that supports inverse modeling by synthesizing robot motion from desired object motion.

Hadi Alzayer, Wenlong Huang, Haonan Chen et al. · 3 citations · ⚡1
Preprint Jul 2026

APIVOT: Adaptive Planning with Interleaved Vision-Language Thoughts

This work proposes APIVOT, a VLM-based planner that adaptively interleaves language and visual thoughts for long-horizon planning that outperforms general-purpose VLMs and prior planning frameworks, achieving the largest gains in spatially constrained settings.

Emily Jin, Joy Hsu, Yiqing Xu et al. · 0 citations

L pCoder ∞ : Scaling Code Intelligence via Looped Language Models

This work presents LoopCoder pre-trained on 12T+ code and general tokens, along with LoopCoder-Thinking and LoopCoder-Instruct variants, the first large-scale looped transformer for code, achieving comparable performance to standard dense architectures with more parameters.

Jian Yang, Wei Zhang, Shawn Guo et al. · 0 citations

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