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178 Results Found

  • Article
  • Open Access
7 Citations
3,551 Views
22 Pages

26 April 2021

Understanding the decision-making behavior of pedestrians is essential for urban designers and developers in enhancing the commercial and aesthetic value of streets and other urban spaces. However, limited research has been conducted on the activity...

(This article belongs to the Section Sustainable Transportation)
  • Article
  • Open Access
1 Citations
2,092 Views
24 Pages

5 January 2026

For multi-robot cooperative coverage, an effective spatial division strategy is essential to ensure balanced and spatially continuous task regions for each robot. Traditional grid-based partitioning approaches like DARP (Divide Areas based on Robots&...

(This article belongs to the Section AI in Robotics)
  • Article
  • Open Access
13 Citations
8,135 Views
18 Pages

2 April 2020

In order to improve the efficiency of transportation networks, it is critical to forecast traffic congestion. Large-scale traffic congestion data have become available and accessible, yet they need to be properly represented in order to avoid overfit...

  • Article
  • Open Access
3 Citations
2,681 Views
23 Pages

23 June 2025

Trajectory planning for autonomous vehicles is essential for ensuring driving safety, passenger comfort, and operational efficiency. Collision avoidance constraints introduce significant computational complexity due to their inherent non-convex and n...

(This article belongs to the Section Robotics and Automation)
  • Article
  • Open Access
5 Citations
4,542 Views
18 Pages

16 May 2019

In the context of robotics and game AI, grid-based Distance Maps (DMs) are often used to fulfill collision checks by providing each traversable cell maximal clearance to its closest obstacle. A key challenge for DMs’ application is how to impro...

(This article belongs to the Special Issue Mobile Robots Navigation)
  • Feature Paper
  • Article
  • Open Access
1,103 Views
23 Pages

Forecasting monthly precipitation in mountainous terrain poses challenges that push conventional deep learning approaches to their limits: convective processes operate locally while orographic effects span entire drainage basins. We compare three arc...

(This article belongs to the Special Issue Advancing Hydrological Science Through Artificial Intelligence: Innovations and Applications)
  • Feature Paper
  • Article
  • Open Access
9 Citations
5,000 Views
24 Pages

Spatio-Temporal Hydrological Model Structure and Parametrization Analysis

  • Mostafa Farrag,
  • Gerald Corzo Perez and
  • Dimitri Solomatine

Many grid-based spatial hydrological models suffer from the complexity of setting up a coherent spatial structure to calibrate such a complex, highly parameterized system. There are essential aspects of model-building to be taken into account: spatia...

(This article belongs to the Section Ocean Engineering)
  • Article
  • Open Access
4 Citations
1,459 Views
31 Pages

25 March 2026

Rapid urbanization in the Global South has intensified the formation of mega-urban regions, where conventional urban–rural classifications often fail to capture the complexity of peri-urban systems. In the Jakarta–Bandung Mega-Urban Regio...

(This article belongs to the Section Land Use, Impact Assessment and Sustainability)
  • Article
  • Open Access
3 Citations
2,546 Views
26 Pages

AGCD: An Attention-Guided Graph Convolution Network for Change Detection of Remote Sensing Images

  • Heng Li,
  • Xin Lyu,
  • Xin Li,
  • Yiwei Fang and ,
  • Zhennan Xu,
  • Xinyuan Wang,
  • Chengming Zhang,
  • Chun Xu,
  • Shaochuan Chen and
  • Chengxin Lu
  • + 5 authors+ 0 author

11 April 2025

Change detection is a crucial field in remote sensing image analysis for tracking environmental dynamics. Although convolutional neural networks (CNNs) have made impressive strides in this field, their grid-based processing structures struggle to cap...

(This article belongs to the Special Issue Multi-Task Remote Sensing Image Analysis: Classification, Segmentation, and Change Detection)
  • Article
  • Open Access
3 Citations
3,421 Views
17 Pages

11 October 2025

We present a visual–inertial odometry (VIO) system that integrates a deep feature extraction and filtering strategy with optical flow to improve tracking robustness. While many traditional VIO methods rely on hand-crafted features, they often s...

(This article belongs to the Special Issue Advances in Autonomous Driving: Detection and Tracking)
  • Article
  • Open Access
69 Views
15 Pages

3 November 2026

Grid-based maritime search and rescue (SAR) planning requires sequential decisions from incomplete spatial observations. Increasing map size also expands the search space and can intensify reward sparsity. This paper proposes CCAL-DQN, an LSTM deep Q...

  • Proceeding Paper
  • Open Access
1 Citations
970 Views
6 Pages

Transit systems play a vital role in urban mobility, yet predicting individual travel behavior within these systems remains a complex challenge. Traditional machine learning approaches struggle with transit trip data because each trip may consist of...

(This article belongs to the Proceedings of The 2025 Suwon ITS Asia Pacific Forum)
  • Article
  • Open Access
1,295 Views
34 Pages

Geo-Referenced Factor-Graph SLAM for Orchard-Scale 3D Apple Reconstruction and Yield Estimation

  • Dheeraj Bharti,
  • Lilian Nogueira de Faria,
  • Luciano Vieira Koenigkan,
  • Luciano Gebler and ,
  • Andrea de Rossi and
  • Thiago Teixeira Santos
  • + 1 author+ 0 author

Accurate and spatially resolved yield estimation is a critical requirement for precision agriculture and orchard management. This paper presents a geometrically consistent, orchard-scale apple yield estimation framework that integrates GNSS–vis...

(This article belongs to the Special Issue Application of Smart Technologies in Orchard Management)
  • Article
  • Open Access
97 Views
21 Pages

2 November 2026

Pseudo-multiview learning (PML) improves classification by generating complementary internal representations and fusing their evidence using subjective logic. However, conventional PML incurs substantial computational costs as the number of pseudo-vi...

(This article belongs to the Special Issue Applications of Deep Neural Networks in Image Processing, 2nd Edition)
  • Article
  • Open Access
2,168 Views
36 Pages

Soundscape monitoring has become an increasingly important tool for studying ecological processes and supporting habitat conservation. While many recent advances focus on identifying species through supervised learning, there is growing interest in u...

  • Article
  • Open Access
10 Citations
9,219 Views
21 Pages

Significant computation challenges are emerging as agent-based modeling becomes more complicated and dynamically data-driven. In this context, parallel simulation is an attractive solution when dealing with massive data and computation requirements....

  • Article
  • Open Access
2 Citations
1,005 Views
26 Pages

22 March 2026

This article addresses the problem of finding the shortest route for Automated Guided Vehicles (AGVs) in a production environment with constrained battery state-of-charge (SoC) and time-dependent operating conditions. The route map is divided into a...

(This article belongs to the Special Issue Autonomous Vehicles and Robotics—2nd Edition)
  • Article
  • Open Access
253 Views
26 Pages

CoSafe-Nav: An Intelligent Connectivity-Aware Navigation System for UAVs in Perception-Degraded Environments

  • Jinchen Wang,
  • Hengkai Zhong,
  • Xueyong Xu,
  • Yuhang Xu and ,
  • Xiangxiang Xing,
  • Xiang Liu,
  • Yan Lyu,
  • Weiwei Wu and
  • Chenchen Fu
  • + 4 authors+ 0 author

27 September 2026

Reliable UAV navigation is challenging when direct geometric perception is limited and only sparse environmental observations are available. This paper presents CoSafe-Nav, an integrated navigation framework that uses ultra-wideband (UWB) line-of-sig...

(This article belongs to the Special Issue Symmetry and Asymmetry in Embedded Systems, 2nd Edition)
  • Article
  • Open Access
108 Views
32 Pages

30 October 2026

Reliable ecosystem service (ES) assessments are essential for sustainable land management and ecological restoration; yet, their implications for decision-making may vary with the spatial units used for analysis. This study examined how spatial repre...

  • Article
  • Open Access
380 Views
29 Pages

PEGNet: A Peridynamics-Inspired and Emergent-Feature-Conditioned Spatio-Temporal Graph Neural Network for Land Subsidence Modeling

  • Siyuan Cheng,
  • Xiaojuan Li,
  • Roberto Tomás,
  • Mi Chen and ,
  • Lin Wang and
  • Kan Wang
  • + 1 author+ 0 author

23 September 2026

Land subsidence prediction remains challenging. Conventional grid-based or sequence-only neural networks struggle to represent these spatial dependencies and often lack structured mechanisms for incorporating region-level deformation priors and local...

(This article belongs to the Special Issue Comprehensive Remote Sensing for Geohazard Detection, Monitoring, and Prediction)
  • Article
  • Open Access
2 Citations
2,106 Views
32 Pages

Beyond Attention: Hierarchical Mamba Models for Scalable Spatiotemporal Traffic Forecasting

  • Zineddine Bettouche,
  • Khalid Ali,
  • Andreas Fischer and
  • Andreas Kassler

13 February 2026

Traffic forecasting in cellular networks is a challenging spatiotemporal prediction problem due to strong temporal dependencies, spatial heterogeneity across cells, and the need for scalability to large network deployments. Traditional cell-specific...

  • Communication
  • Open Access
2,032 Views
10 Pages

Self-location plays a crucial role in a framework of autonomous navigation, especially in a GNSS/radio-denied environment. At the current time, self-location for artificial agents still has to resort to the visual and laser technologies in the framew...

(This article belongs to the Special Issue Machine Learning for Radar and Communication Signal Processing)
  • Article
  • Open Access
5 Citations
3,628 Views
20 Pages

With the continuous advancement of technology for obtaining geographic spatial data, the accumulated volume of such data has been increasing, thus imposing higher demands on the storage, organization, and management of such data. As a new form of dat...

  • Article
  • Open Access
3 Citations
4,211 Views
20 Pages

Deep Learning-Emerged Grid Cells-Based Bio-Inspired Navigation in Robotics

  • Arturs Simkuns,
  • Rodions Saltanovs,
  • Maksims Ivanovs and
  • Roberts Kadikis

4 March 2025

Grid cells in the brain’s entorhinal cortex are essential for spatial navigation and have inspired advancements in robotic navigation systems. This paper first provides an overview of recent research on grid cell-based navigation in robotics, f...

(This article belongs to the Special Issue Smart Sensor Systems for Positioning and Navigation)
  • Article
  • Open Access
4 Citations
2,714 Views
16 Pages

26 May 2023

With the continuous development of general aviation, the contradiction between the air demand of general aviation low-altitude airspace and civil aviation routes is sharp. The difficulty of airspace planning is complex and changeable, and the existin...

(This article belongs to the Special Issue Analysis, Optimization, and Control of Air Traffic System)
  • Feature Paper
  • Article
  • Open Access
17 Citations
5,077 Views
19 Pages

Towards a Predictive Bio-Inspired Navigation Model

  • Simon Gay,
  • Kévin Le Run,
  • Edwige Pissaloux,
  • Katerine Romeo and
  • Christèle Lecomte

26 February 2021

This paper presents a novel bio-inspired predictive model of visual navigation inspired by mammalian navigation. This model takes inspiration from specific types of neurons observed in the brain, namely place cells, grid cells and head direction cell...

(This article belongs to the Special Issue Indoor Navigation in Smart Cities)
  • Article
  • Open Access
14 Citations
3,417 Views
27 Pages

An Update of the NeQuick-Corr Topside Ionosphere Modeling Based on New Datasets

  • Michael Pezzopane,
  • Alessio Pignalberi,
  • Marco Pietrella,
  • Haris Haralambous and ,
  • Fabricio Prol,
  • Bruno Nava,
  • Artem Smirnov and
  • Chao Xiong
  • + 3 authors+ 0 author

18 April 2024

A new analytical formula for H0, one of the three parameters (H0, g, and r) on which the NeQuick model is based to describe the altitude profile of the electron density above the F2-layer peak height hmF2, has recently been proposed. This new analyti...

(This article belongs to the Section Upper Atmosphere)
  • Article
  • Open Access
44 Citations
11,219 Views
16 Pages

Testing the SWAT Model with Gridded Weather Data of Different Spatial Resolutions

  • Youen Grusson,
  • François Anctil,
  • Sabine Sauvage and
  • José Miguel Sánchez Pérez

17 January 2017

This study explored the influence of the spatial resolution of a gridded weather dataset when inputted in the soil and water assessment tool (SWAT) over the Garonne River watershed. Several datasets are compared: ground-based weather stations, the 8-...

(This article belongs to the Special Issue Integrated Soil and Water Management: Selected Papers from 2016 International SWAT Conference)
  • Article
  • Open Access
991 Views
20 Pages

22 July 2026

Image super-resolution (SR) is a fundamental task in computer vision that aims to recover high-fidelity details from low-resolution images. To address the limitations of existing Transformer-based SR methods, this paper introduces GSDAT-Net, a grid-s...

(This article belongs to the Special Issue Machine Learning in Image/Video Processing and Sensing)
  • Article
  • Open Access
117 Views
35 Pages

This study extends hierarchical spatiotemporal identifiers beyond cell identification by using the Binary Spatiotemporal Identifier (BST-ID) as a computational representation for multi-cell regions. BST-ID supports independent resolution along x, y,...

  • Article
  • Open Access
2,493 Views
27 Pages

Concept-Guided Exploration: Building Persistent, Actionable Scene Graphs

  • Noé José Zapata Cornejo,
  • Gerardo Pérez,
  • Alejandro Torrejón,
  • Pedro Núñez and
  • Pablo Bustos

16 October 2025

The perception of 3D space by mobile robots is rapidly moving from flat metric grid representations to hybrid metric-semantic graphs built from human-interpretable concepts. While most approaches first build metric maps and then add semantic layers,...

(This article belongs to the Section Robotics and Automation)
  • Feature Paper
  • Article
  • Open Access
3 Citations
1,500 Views
24 Pages

7 March 2026

This study proposes an end-to-end mathematical framework to automatically transform warehouse layout images into optimization-ready route matrices. The objective is to convert visual spatial information into a discrete, graph-based representation sui...

(This article belongs to the Special Issue Soft Computing in Computational Intelligence and Machine Learning)
  • Article
  • Open Access
517 Views
25 Pages

A High-Accuracy Gridded Precipitation Dataset for Southeast Asia Developed Using Extended Triple Collocation Analysis

  • Bhenjamin Jordan Ona,
  • Srivatsan V Raghavan,
  • Ngoc Son Nguyen,
  • Raphael Loh and
  • Shreyas Rajendra Dhavale

29 August 2026

Accurate daily gridded precipitation estimates are needed to characterize spatial rainfall variability and support retrospective hydrological analysis in Southeast Asia, where complex rainfall regimes and sparse rain gauge coverage remain major chall...

(This article belongs to the Section Atmospheric Techniques, Instruments, and Modeling)
  • Article
  • Open Access
269 Views
25 Pages

8 October 2026

Local short-duration heavy-rainfall warning requires early assessment of hazardous rainfall within a specified neighborhood. Geostationary meteorological satellites provide frequent, spatially continuous observations of cloud systems and storm evolut...

  • Article
  • Open Access
988 Views
33 Pages

Temporal Gap Filling and Model-Based Spatial Downscaling of GRACE-Based Groundwater-Storage Anomalies Using Gaussian Process and Random Forest Models

  • Keke Xu,
  • Yongzhen Zhu,
  • Xianglei Liu,
  • Wei Zheng and ,
  • Huanxu Li,
  • Jiaqi Zhao and
  • Mengchao Chen
  • + 2 authors+ 0 author

11 August 2026

Groundwater-storage anomalies (GWSA) derived from the Gravity Recovery and Climate Experiment (GRACE) mission provide valuable information for regional groundwater monitoring. Improving the spatial representation and temporal continuity of GRACE-deri...

  • Article
  • Open Access
2 Citations
1,830 Views
17 Pages

3 August 2025

Accurate prediction of airport delays under convective weather conditions is essential for effective traffic coordination and improving overall airport efficiency. Traditional methods mainly rely on numerical weather and traffic indicators, but they...

  • Article
  • Open Access
4 Citations
1,468 Views
21 Pages

In dynamic environments with continuous variability, such as those affected by typhoons, ship path planning must account for both navigational safety and the maneuvering characteristics of the vessel. However, current methods often struggle to accura...

(This article belongs to the Section Computer Science & Engineering)
  • Article
  • Open Access
2 Citations
1,922 Views
14 Pages

9 August 2024

In recent years, graph-based learning methods have gained significant traction in point-of-interest (POI) recommendation systems due to their strong generalization capabilities. These approaches commonly transform user check-in records into graph-str...

(This article belongs to the Special Issue Recommender Systems and Their Advanced Application)
  • Article
  • Open Access
2 Citations
1,626 Views
17 Pages

5 February 2026

This paper presents an Implicit Neural Representation method for Event-Based Imaging Velocimetry (INR-VG) to reconstruct dense velocity fields from sparse event streams. The core idea is to learn a mapping (multilayer perceptron) from spatial coordin...

(This article belongs to the Special Issue Applied Mathematics in Fluid Mechanics and Flows)
  • Article
  • Open Access
2 Citations
1,819 Views
18 Pages

Spatial Prediction of Electronic Wavefunctions from Reciprocal Lattices: Visualization of Electronic Properties of 2D Materials Using Deep Convolutional Neural Networks

  • Rubén Guerrero-Rivera,
  • Norma A. García-Vidaña,
  • Francisco J. Godínez-García,
  • Zhipeng Wang and ,
  • Morinobu Endo and
  • Josué Ortiz-Medina
  • + 1 author+ 0 author

13 February 2026

The representation of electronic wavefunctions in real space grids, which are directly related to molecular orbitals and electronic densities either in molecular or crystalline systems, is a fundamental part of many studies at ab initio levels, since...

  • Article
  • Open Access
110 Views
24 Pages

29 October 2026

Research on surface visibility and road-network-level visibility is crucial for transportation. However, complex terrain, frequent dust activities, and sparse observations increase the difficulty of continuous visibility monitoring along roads. This...

  • Article
  • Open Access
309 Views
24 Pages

Real-Time Trajectory Publishing in Mobile Crowdsensing Under Local Differential Privacy

  • Hongyi Zhang,
  • Liquan Chen,
  • Huiyu Fang,
  • Jianchang Lai and
  • Xinyuan Sun

24 September 2026

Mobile crowdsensing (MCS) leverages the sensing capabilities of mobile devices carried by a vast number of participants to accomplish large-scale urban sensing tasks. In MCS systems, participants continuously generate trajectory streams while uploadi...

  • Article
  • Open Access
517 Views
18 Pages

14 July 2026

Near-field multistatic radar imaging requires evaluating a nonlinear matched-filter operator over a three-dimensional search region, imposing a prohibitive computational burden on systems utilizing sparse, large-aperture receiver layouts. In this pap...

(This article belongs to the Section Radar Sensors)
  • Article
  • Open Access
516 Views
22 Pages

28 July 2026

Regional development disparities remain a persistent global challenge, yet existing assessment approaches often face a trade-off between spatial detail and temporal coverage. Conventional socioeconomic statistics provide relatively reliable informati...

(This article belongs to the Section Development Goals towards Sustainability)
  • Feature Paper
  • Article
  • Open Access
1 Citations
803 Views
20 Pages

11 February 2026

This study develops a reproducible regional screening workflow to assess geothermal potential in the Cambrian reservoir system of Western Lithuania under conditions of sparse and heterogeneous legacy subsurface data. The approach integrates data comp...

(This article belongs to the Special Issue Advanced Reservoir Simulation and Modelling in Oil and Gas-Related Processes)
  • Article
  • Open Access
152 Views
15 Pages

29 October 2026

Conventional independently trained models for distributed photovoltaic (DPV) power forecasting at the feeder, main-transformer, and regional-grid levels do not explicitly reuse spatiotemporal representations across the distribution-network hierarchy....

(This article belongs to the Special Issue Advances in Renewable Energy Integration in Power System)
  • Article
  • Open Access
856 Views
25 Pages

12 January 2026

Optical Fiber Composite Overhead Ground Wire (OPGW) cables serve dual functions in power systems, lightning protection and critical communication infrastructure for real-time grid monitoring. Accurate OPGW identification during UAV inspections is ess...

(This article belongs to the Section Internet of Things)
  • Data Descriptor
  • Open Access
45 Citations
30,361 Views
16 Pages

Urbanization in India: Population and Urban Classification Grids for 2011

  • Deborah Balk,
  • Mark R. Montgomery,
  • Hasim Engin,
  • Natalie Lin and ,
  • Elizabeth Major and
  • Bryan Jones
  • + 1 author+ 0 author

26 February 2019

India is the world’s most populous country, yet also one of the least urban. It has long been known that India’s official estimates of urban percentages conflict with estimates derived from alternative conceptions of urbanization. To date...

(This article belongs to the Special Issue Spatial Denominators: Modeling Population and Demographic Distributions)
  • Article
  • Open Access
398 Views
27 Pages

16 September 2026

Hand gesture recognition plays an important role in computer vision with broad applications in human–computer interaction, intelligent perception, and contactless interaction systems. However, existing detection-based methods mainly rely on han...

(This article belongs to the Section Artificial Intelligence)
  • Article
  • Open Access
1 Citations
3,653 Views
28 Pages

Unstructured POI name texts are widely used in fine-grained urban analysis, yet missing labels and semantic ambiguity often limit their value for spatial inference. This study proposes a large language model-based semantic–spatial inference fra...

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