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Showing 81 results for "zaichen zhang" in Engineering
Engineering Preprint PDF DOI

Navigating the Clutter: Waypoint-Based Bi-Level Planning for Multi-Robot Systems

Jiabao Ji, Yongchao Chen, Yang Zhang, Ramana Rao Kompella, Chuchu Fan, Gaowen Liu, Shiyu Chang · 2026

Multi-robot control in cluttered environments is a challenging problem that involves complex physical constraints, including robot-robot collisions, robot-obstacle collisions, and unreachable motions.…

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Engineering Preprint PDF DOI

Data-Driven Reachability Analysis Using Matrix Perturbation Theory

Peng Xie, Abdulla Fawzy, Zhen Zhang, Amr Alanwar · 2026

We propose a matrix zonotope perturbation framework that leverages matrix perturbation theory to characterize how noise-induced distortions alter the dynamics within sets of models. The framework deri…

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Engineering Preprint PDF DOI

Second Order Physics-Informed Learning of Road Density using Probe Vehicles

S. Betancur Giraldo, J. M{aa}rtensson, M. Barreau · 2026

We propose a Physics Informed Learning framework for reconstructing traffic density from sparse trajectory data. The approach combines a second-order Aw-Rascle and Zhang model with a first-order train…

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Engineering Preprint PDF DOI

STRIDE: Post-Training LLMs to Reason and Refine Bio-Sequences via Edit Trajectories

Daiheng Zhang, Shiyang Zhang, Sizhuang He, Yangtian Zhang, Syed Asad Rizvi, David van Dijk · 2026

Discrete biological sequence optimization requires iterative refinement under strict syntactic constraints. Diffusion models offer progressive refinement but do not naturally expose controllable discr…

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Engineering Preprint PDF DOI

TokCom-UEP: Semantic Importance-Matched Unequal Error Protection for Resilient Image Transmission

Kaizheng Zhang, Zuolin Jin, Zhihang Cheng, Ming Zeng, Li Qiao, Zesong Fei · 2025

Based on the provided LaTeX code, here is the metadata for the submission form: Title: TokCom-UEP: Semantic Importance-Matched Unequal Error Protection for Resilient Image Transmission Author(s): Kaiz…

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Engineering Preprint PDF DOI

Ein Fenster zur gleichzeitigen Messung der Uebertragungsfunktion eines realen Systems und des Leistungsdichtespektrums des ueberlagerten Rauschens am Systemausgang (Teil 2)

Helmut Repp · 2025

The method described in the first part for frequency-selectively measuring the transfer function and the noise power spectral density of the superimposed noise at the output of a disturbed, real syste…

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Engineering Preprint PDF DOI

Event-Triggered Regulation of Mixed-Autonomy Traffic Under Varying Traffic Conditions

Yihuai Zhang, Huan Yu · 2025

Modeling and congestion mitigation of mixed-autonomy traffic systems consisting of human-driven vehicles (HVs) and autonomous vehicles (AVs) have become increasingly critical with the rapid developmen…

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Engineering Preprint PDF DOI

Single-Rod Brachiation Robot: Mechatronic Control Design and Validation of Prejump Phases

Juraj Lieskovsky, Hijiri Akahane, Aoto Osawa, Jaroslav Busek, Ikuo Mizuuchi, Tomas Vyhlidal · 2025

A complete mechatronic design of a minimal configuration brachiation robot is presented. The robot consists of a single rigid rod with gripper mechanisms attached to both ends. The grippers are used t…

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Engineering Preprint PDF DOI

Extensions of a Line-Graph-Based Method for Token Routing in Decentralized Exchanges

Yu Zhang, Claudio J.Tessone · 2025

Decentralized exchanges (DEXs) form a cornerstone of the decentralized finance (DeFi) ecosystem, processing token trades worth billions of dollars daily. Yet, a significant fraction of these trades ar…

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Engineering Preprint PDF DOI

Application Management in C-ITS: Orchestrating Demand-Driven Deployments and Reconfigurations

Lukas Zanger, Bastian Lampe, Lennart Reiher, Lutz Eckstein · 2025

Vehicles are becoming increasingly automated and interconnected, enabling the formation of cooperative intelligent transport systems (C-ITS) and the use of offboard services. As a result, cloud-native…

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Engineering Preprint PDF DOI

NAMOUnc: Navigation Among Movable Obstacles with Decision Making on Uncertainty Interval

Kai Zhang, Eric Lucet, Julien Alexandre Dit Sandretto, Shoubin Chen, David Filliat · 2025

Navigation among movable obstacles (NAMO) is a critical task in robotics, often challenged by real-world uncertainties such as observation noise, model approximations, action failures, and partial obs…

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Engineering Preprint PDF DOI

RDDM: Practicing RAW Domain Diffusion Model for Real-world Image Restoration

Yan Chen, Yi Wen, Wei Li, Junchao Liu, Yong Guo, Jie Hu, Xinghao Chen · 2025

We present the RAW domain diffusion model (RDDM), an end-to-end diffusion model that restores photo-realistic images directly from the sensor RAW data. While recent sRGB-domain diffusion methods achie…

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Engineering Preprint PDF DOI

SIGN: Safety-Aware Image-Goal Navigation for Autonomous Drones via Reinforcement Learning

Zichen Yan, Rui Huang, Lei He, Shao Guo, Lin Zhao · 2025

Image-goal navigation (ImageNav) tasks a robot with autonomously exploring an unknown environment and reaching a location that visually matches a given target image. While prior works primarily study …

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Engineering Preprint PDF DOI

From Micro to Macro Flow Modeling: Characterizing Heterogeneity of Mixed-Autonomy Traffic

Chenguang Zhao, Huan Yu · 2025

Most autonomous-vehicles (AVs) driving strategies are designed and analyzed at the vehicle level, yet their aggregate impact on macroscopic traffic flow is still not understood, particularly the flow …

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Engineering Preprint PDF DOI

MolFORM: Preference-Aligned Multimodal Flow Matching for Structure-Based Drug Design

Daiheng Zhang, Zhao Zhang · 2025

Structure-based drug design (SBDD) aims to efficiently discover high-affinity ligands within vast chemical spaces. However, current generative models struggle with objective misalignment and rigid sam…

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Engineering Preprint PDF DOI

CodeDiffuser: Attention-Enhanced Diffusion Policy via VLM-Generated Code for Instruction Ambiguity

Guang Yin, Yitong Li, Yixuan Wang, Dale McConachie, Paarth Shah, Kunimatsu Hashimoto, Huan Zhang, Katherine Liu, Yunzhu Li · 2025

Natural language instructions for robotic manipulation tasks often exhibit ambiguity and vagueness. For instance, the instruction "Hang a mug on the mug tree" may involve multiple valid actions if the…

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Engineering Preprint PDF DOI

X-LRM: X-ray Large Reconstruction Model for Extremely Sparse-View Computed Tomography Recovery in One Second

Guofeng Zhang, Ruyi Zha, Hao He, Yixun Liang, Alan Yuille, Hongdong Li, Yuanhao Cai · 2025

Sparse-view 3D CT reconstruction aims to recover volumetric structures from a limited number of 2D X-ray projections. Existing feedforward methods are constrained by the scarcity of large-scale traini…

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Engineering Preprint PDF DOI

Task-oriented Uncertainty Collaborative Learning for Label-Efficient Brain Tumor Segmentation

Zhenxuan Zhang, Hongjie Wu, Jiahao Huang, Baihong Xie, Zhifan Gao, Junxian Du, Pete Lally, Guang Yang · 2025

Multi-contrast magnetic resonance imaging (MRI) plays a vital role in brain tumor segmentation and diagnosis by leveraging complementary information from different contrasts. Each contrast highlights …

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Engineering Preprint PDF DOI

Pretext Task Adversarial Learning for Unpaired Low-field to Ultra High-field MRI Synthesis

Zhenxuan Zhang, Peiyuan Jing, Coraline Beitone, Jiahao Huang, Zhifan Gao, Guang Yang, Pete Lally · 2025

Given the scarcity and cost of high-field MRI, the synthesis of high-field MRI from low-field MRI holds significant potential when there is limited data for training downstream tasks (e.g. segmentatio…

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Engineering Preprint PDF DOI

A high-order augmented basis positivity-preserving discontinuous Galerkin method for a Linear Hyperbolic Equation

Maurice S. Fabien · 2025

This paper designs a high-order positivity-preserving discontinuous Galerkin (DG) scheme for a linear hyperbolic equation. The scheme relies on augmenting the standard polynomial DG spaces with additi…

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