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๐Ÿ” spatial analysis ๐Ÿ“‚ Engineering
Showing 32423 results for "spatial analysis" in Engineering
Engineering Preprint PDF DOI

An Explainable Approach to Document-level Translation Evaluation with Topic Modeling

Hyeokmin Lee, Youngkyu Kim, Byounghyun Yoo ยท 2026

The advent of NMT has expanded the scope of translation beyond isolated sentences, enabling context to be preserved across paragraphs and documents. However, current evaluation metrics largely remain โ€ฆ

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Engineering Preprint PDF DOI

LMI Approach for Sliding Mode Control and Analysis of DC-DC Converters

Aleksandra Lekic, Dusan Stipanovic ยท 2026

Circuits' and in particular DC/DC converters' switching behavior is analyzed in this paper using the equivalent control modeling of the dynamic systems' sliding mode regime. As a representative examplโ€ฆ

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Engineering Preprint PDF DOI

Computationally Efficient Sparse Signal Recovery via Linear Sketching and Deep Unfolding

Tatsuki Tokumura, Ayano Nakai-Kasai, Tadashi Wadayama ยท 2026

This paper provides a sparse signal recovery algorithm, DU-PSISTA (Deep Unfolded-Periodic Sketched Iterative Shrinkage-Thresholding Algorithm), which aims to balance computational efficiency and accurโ€ฆ

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Engineering Preprint PDF DOI

Risk-Aware Hosting Capacity Analysis for Flexible Load Interconnection in Distribution Networks

Gobinda Chandra Sarker, Nathan Dahlin ยท 2026

The increasing penetration of flexible loads, such as electric vehicles and AI data-centers necessitates new methodologies for quantifying electrical load hosting capacity under operational constraintโ€ฆ

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Engineering Preprint PDF DOI

Algebraic Diversity: Principles of a Group-Theoretic Approach to Signal Processing

Mitchell A. Thornton ยท 2026

We present principles of algebraic diversity (AD), a group-theoretic approach to signal processing exploiting signal symmetry to extract more information per observation, complementing classical methoโ€ฆ

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Engineering Preprint PDF DOI

A Hybrid Gauss Markov LSTM Mobility Model for Indoor OWC

Walter Zibusiso Ncube, Ahmad Adnan Qidan, Taisir El-Gorashi, Jaafar M. H. Elmirghani ยท 2026

Optical wireless communication (OWC) has emerged as a promising candidate for future high-capacity indoor wireless networks, driven by its large unregulated spectrum, high spatial reuse, and ability tโ€ฆ

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Engineering Preprint PDF DOI

Cross-Atlantic Research Agenda for Scalable Grid Architectures and Distributed Flexibility

Mads R. Almassalkhi, Dakota Hamilton, Hasan Giray Oral, Yury Dvorkin, Dennice Gayme, Bri-Mathias Hodge, Brian Vad Mathiesen, Jakob Stoustrup, Tobias Ritschel, Rune G. Junker, Shahab Tohidi, Razgar Ebrahimy, Henrik Madsen ยท 2026

Electric power systems are rapidly evolving into deeply digital, cyber-physical infrastructures in which large fleets of distributed energy resources must be coordinated as system-level flexibility acโ€ฆ

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Engineering Preprint PDF DOI

VLA Foundry: A Unified Framework for Training Vision-Language-Action Models

Jean Mercat, Sedrick Keh, Kushal Arora, Isabella Huang, Paarth Shah, Haruki Nishimura, Shun Iwase, Katherine Liu ยท 2026

We present VLA Foundry, an open-source framework that unifies LLM, VLM, and VLA training in a single codebase. Most open-source VLA efforts specialize on the action training stage, often stitching togโ€ฆ

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Engineering Preprint PDF DOI

Coherent Direct Multipath SLAM

Benjamin J. B. Deutschmann, Klaus Witrisal, Erik Leitinger ยท 2026

Challenging indoor and urban environments with severe multipath propagation and obstructed LoS (OLoS) degrade classical radio frequency (RF) positioning. Multipath-based simultaneous localization and โ€ฆ

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Engineering Preprint PDF DOI

Towards Reproducible Test Annotation for Cyber-Physical Energy Systems using Ontology-driven Dataspaces

Kai Heussen, Jawad Kazmi, Narges Mehran, Artjoms Obushevs, Terence O'Donnell, Thomas I. Strasser ยท 2026

Reproducibility, traceability, and transparency in testing cyber-physical energy systems are crucial for scientific advancement and cross-laboratory collaboration. Current experimentation and test docโ€ฆ

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Engineering Preprint PDF DOI

Multi-Cycle Spatio-Temporal Adaptation in Human-Robot Teaming

Alex Cuellar, Michael Hagenow, Julie Shah ยท 2026

Effective human-robot teaming is crucial for the practical deployment of robots in human workspaces. However, optimizing joint human-robot plans remains a challenge due to the difficulty of modeling iโ€ฆ

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Engineering Preprint PDF DOI

Odour sensing in turbulent plumes with high-speed electronic nose and non-invasive ground truth

Nik Dennler, Elle Stark, Saimon Collaku, Lars Larson, Andre van Schaik, Michael Schmuker, John Crimaldi, Andreas T. Guntner, Aaron True ยท 2026

Chemical sensing in real-world environments requires resolving rapidly fluctuating and spatially heterogeneous concentration fields. However, these dynamics are strongly distorted by widely used, low-โ€ฆ

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Engineering Preprint PDF DOI

Positivity of a Hadamard Product

Roger A. Horn, Shengxuan Luo, Hongwei Xu, Zai Yang ยท 2026

A notable difference between the ordinary and Hadamard products is that the Hadamard product of two singular positive semidefinite matrices can be nonsingular, and one of the factors can even be indefโ€ฆ

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Engineering Preprint PDF DOI

Active Inference-Enabled Agentic Closed-Loop ISAC with Long-Horizon Planning

Guangjin Pan, Zhuojun Tian, Mehdi Bennis, Henk Wymeersch ยท 2026

Wireless agentic systems enable agents to autonomously perceive, reason, and act. However, existing works neglect the tight coupling between sensing and control in closed-loop integrated sensing and cโ€ฆ

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Engineering Preprint PDF DOI

Assessing VLM-Driven Semantic-Affordance Inference for Non-Humanoid Robot Morphologies

Jess Jones, Raul Santos-Rodriguez, Sabine Hauert ยท 2026

Vision-language models (VLMs) have demonstrated remarkable capabilities in understanding human-object interactions, but their application to robotic systems with non-humanoid morphologies remains largโ€ฆ

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Engineering Preprint PDF DOI

State Forecasting in an Estimation Framework with Surrogate Sensor Modeling

Sriram Narayanan, Mohamed Naveed Gul Mohamed, Ishan Paranjape, Indranil Nayak, Suman Chakravorty, Mrinal Kumar ยท 2026

In recent years, computational power and data availability breakthroughs have revolutionized our ability to analyze complex physical systems through the inverse problem approach. Data-driven techniqueโ€ฆ

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Engineering Preprint PDF DOI

M$^{2}$GRPO: Mamba-based Multi-Agent Group Relative Policy Optimization for Biomimetic Underwater Robots Pursuit

Yukai Feng, Zhiheng Wu, Zhengxing Wu, Junwen Gu, Junzhi Yu ยท 2026

Traditional policy learning methods in cooperative pursuit face fundamental challenges in biomimetic underwater robots, where long-horizon decision making, partial observability, and inter-robot coordโ€ฆ

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Engineering Preprint PDF DOI

Blockage-Aware and Shadowing Aware RIS Assisted Joint Communication and Positioning for Urban Non Terrestrial Networks

Muhammad Khalil, Ke Wang, Jinho Choi ยท 2026

Reconfigurable intelligent surfaces (RISs) have recently attracted interest for non-terrestrial networks (NTNs), especially for improving satellite communication performance. However, RIS-assisted urbโ€ฆ

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Engineering Preprint PDF DOI

Wildfires Quasi-Implicit Alternative-Direction Simulations using Isogeometric Finite Element Method

Juliusz Wasieleski, Tomasz S{l}uzalec, Maciej Wozniak, Marcin {L}os, Andres Medina, Paulina Sepulveda, Albert Oliver Serra, Eirik Valseth, Anna Paszynska, Maciej Paszynski ยท 2026

We develop a wildfire simulation model that evolves the temperature scalar field using an energy balance equation accounting for heat generation, transport, and loss. For these equations, we develop qโ€ฆ

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Engineering Preprint PDF DOI

Hybrid Beamforming for Subarray-Level Movable Antenna Enhanced MU-MIMO Communications

Shanshan Zhang, Songjie Yang, Wenxuan Zhang, Youzhi Xiong, Siya Yao ยท 2026

This study investigates subarray-level movable antenna (MA) architecture for multi-user MIMO (MU-MIMO) systems. Unlike conventional systems with fixed-position antennas (FPAs), the proposed scheme harโ€ฆ

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