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Xiaobing Tu

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Preprint Sep 2026

Dense to MoE Adaptation for Compact Vision Language Action Policies

The results suggest that dense to MoE adaptation with dynamic expert deactivation is a practical direction for reducing active VLA model size without severe performance loss.

Mu-Chun Niu, Shuang Chen, Yu-Zhou Wu et al. · 0 citations
#artificial intelligence Open access Sep 2026

SPIDER: Multi-Layer Semantic Token Pruning and Adaptive Sub-Layer Skipping in Multimodal Large Language Models.

Multimodal Large Language Models face significant efficiency challenges that stem from two distinct yet coupled sources: data redundancy and computational redundancy. While most methods focus on data redundancy by pruning visual tokens from the output of the visual encoder or computing redundancy in LLM decoders using...

Tian-Xiang Chen, Zhentao Tan, Zi Ye et al. · 0 citations
Preprint Aug 2026

STEP-OPD: Rethinking Output Targets and Internal Dynamics in On-Policy Distillation for Diffusion Models

STEP-OPD is proposed, an on-policy distillation framework for image generation that extends the student's learning target beyond the teacher and introduces explicit constraints on its internal representation evolution, showing that output extrapolation enables beyond-teacher learning.

Qing-Yan Wei, Guang-Zhao Li, Xiao-Bing Tu et al. · 1 citation
#artificial intelligence Preprint Sep 2026

HarnessBandit: Joint Learnability-Transferability Scheduling for Multi-Harness Agentic Reinforcement Learning

This work develops HarnessBandit, an online scheduler that selects one harness per optimizer step, and improves over mixed-batch multi-harness training on both benchmarks, while training diagnostics indicate that learnability and transferability provide distinct, evolving signals.

Hong-Liang Wei, Xiao-Bing Tu, Yinggui Wang et al. · 1 citation · ⚡1
#artificial intelligence Preprint Sep 2026

Behavior Quotient Learning for Low-Rank Adaptation of LLM Agents

BQ-LoRA is proposed, a low-rank adaptation framework that organizes trajectory updates through a local behavior quotient manifold and contains two modules, i.e., behavior quotient balancing (BQB) and decision preserving compression (DPC).

Peng-Yang Zhou, Xiao-Bing Tu, Zheng-Xi Liu et al. · 0 citations
Preprint Aug 2026

Wuying-Browser-Agent: Real-World Centric Fundamental Long-Horizon Browser Agents

This work argues that closing this gap requires alignment at every level of the pipeline, including execution, supervision, optimization, and evaluation, rather than scale alone, and presents Wuying-Browser-Agent, a unified framework that addresses each of these levels.

A. Chen, Yan Cheng, Zhangye Han et al. · 1 citation
Preprint Aug 2026

AViTS: Adaptive Spatiotemporal Token Selection for Efficient Dynamic-Resolution Generation

AViTS models spatial importance via latent-text attention and temporal importance via token-level feature variation across diffusion timesteps, and fuses them to enable spatiotemporal importance-aware selective upsampling: it prioritizes resolution refinement for critical tokens while deferring less important ones, the...

Hao-Ran Qin, Zhen Yan, Shikang Zheng et al. · 0 citations
#machine learning Preprint Sep 2026

Accelerating Diffusion Transformers with Gaussian Process Rectified Feature Cache

A statistical observation that the residuals between the features of full computation steps using caching methods and reference full-compute trajectory locally exhibit a zero-mean Gaussian distribution is presented, and a plug-and-play GP-Refiner correction framework is proposed.

Zhi-Rong Shen, Rui-Xin Huang, Chang Zou et al. · 0 citations
#artificial intelligence Preprint Sep 2026

MemForest: Efficient Agent Memory Management via EventTree Partitioning and Progressive Merging

This work proposes a general memory compression framework adaptable to various agent memory systems, MemForest, and introduces an anchor-guided propagation retrieval mechanism that retrieves relevant memory nodes from the temporal neighborhoods of key nodes, improving retrieval accuracy.

Junxi Wang, Te Sun, Jiayi Zhu et al. · 0 citations
Preprint Aug 2026

LinCa: Accelerating Diffusion Models via Learnable Decomposed Feature Caching

LinCa decomposes cached features into sub-components with distinct continuity properties via a lightweight invertible network and applies differentiated prediction orders matched to each component, forming a unified Decompose-Predict-Reconstruct pipeline.

Jin-Shan Liu, Hao-Ran Qin, Xiao-Bing Tu et al. · 0 citations
Jul 2026

EgoGenesis: Egocentric World-Action Modeling with Online Anchored Projective Memory and Action-3D RoPE

Method, an egocentric world-action simulator that synthesizes controllable, high-quality manipulation videos to expand scarce real-world training data, is presented, demonstrating that the synthesized data substantially improve downstream WAM generalization.

Zexuan Yan, Yuzhou Wu, Yue Ma et al. · 0 citations

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