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3,021 Results Found

  • Article
  • Open Access
4 Citations
2,096 Views
27 Pages

Hyperspectral image classification is widely applied in several fields. Since existing datasets focus on a single scene, current deep learning-based methods typically divide patches randomly on the same image as training and testing samples. This can...

(This article belongs to the Section Computer Science & Engineering)
  • Article
  • Open Access
69 Citations
10,222 Views
16 Pages

4 March 2015

Research on spatial cluster detection of traffic crash (TC) at the city level plays an essential role in safety improvement and urban development. This study aimed to detect spatial cluster pattern and identify riskier road segments (RRSs) of TC cons...

  • Article
  • Open Access
10 Citations
7,173 Views
21 Pages

The spatial distribution of urban geographical events is largely constrained by the road network, and research on spatial clusters of fire accidents at the city level plays a crucial role in emergency rescue and urban planning. For example, by knowin...

(This article belongs to the Special Issue Urban Environment Mapping Using GIS)
  • Article
  • Open Access
419 Views
29 Pages

Spatial Allocation of Veterinary Healthcare Facilities in Beijing Using Random Forest and Priority-Constrained Covering Optimisation

  • Boting Xi,
  • Shaohua Wang,
  • Siyu Zhao,
  • Wenda Wang,
  • Liang Long,
  • Chang Liu,
  • Jingyi Zhou and
  • Haojian Liang

Veterinary hospitals are increasingly important neighborhood services, but citywide evidence on their strategic allocation remains limited. Existing GIS-based suitability studies identify favorable areas, but do not determine which limited set of pla...

  • Article
  • Open Access
10 Citations
6,610 Views
20 Pages

17 April 2019

Territory design and analysis using geographical loss cost are a key aspect in auto insurance rate regulation. The major objective of this work is to study the design of geographical rating territories by maximizing the within-group homogeneity, as w...

  • Article
  • Open Access
1 Citations
2,788 Views
28 Pages

Delineating Source and Sink Zones of Trip Journeys in the Road Network Space

  • Yan Shi,
  • Bingrong Chen,
  • Jincai Huang,
  • Da Wang,
  • Huimin Liu and
  • Min Deng

Source–sink zones refer to aggregated adjacent origins/destinations with homogeneous trip flow characteristics. Current relevant studies mostly detect source–sink zones based on outflow/inflow volumes without considering trip routes. Neve...

  • Article
  • Open Access
11 Citations
5,530 Views
18 Pages

12 October 2024

To enhance the application of building information modeling (BIM) in schedule management for engineering projects, improve spatial planning capabilities, and minimize subjective factors in schedule preparation, this paper presents a framework and met...

(This article belongs to the Section Construction Management, and Computers & Digitization)
  • Article
  • Open Access
2 Citations
2,925 Views
15 Pages

Spatial–Spectral Constrained Adaptive Graph for Hyperspectral Image Clustering

  • Xing-Hui Zhu,
  • Yi Zhou,
  • Meng-Long Yang and
  • Yang-Jun Deng

7 August 2022

Hyperspectral image (HSI) clustering is a challenging task, whose purpose is to assign each pixel to a corresponding cluster. The high-dimensionality and noise corruption are two main problems that limit the performance of HSI clustering. To address...

(This article belongs to the Special Issue Machine Learning Based Remote Sensing Image Classification)
  • Article
  • Open Access
88 Views
31 Pages

12 October 2026

For regions with limited geothermal geological data, regional reservoir parameters are often difficult to directly incorporate into numerical models, while the linkage between heterogeneous zoning and detailed simulations remains insufficient and ful...

(This article belongs to the Special Issue Oil and Gas Exploration, Applications and Development)
  • Article
  • Open Access
3 Citations
1,462 Views
20 Pages

Spatial–Temporal Physics-Constrained Multilayer Perceptron for Aircraft Trajectory Prediction

  • Zhongnan Zhang,
  • Jianwei Zhang,
  • Yi Lin,
  • Kun Zhang,
  • Xuemei Zheng and
  • Dengmei Xiang

10 September 2025

Aircraft trajectory prediction (ATP) is a critical technology for air traffic control (ATC), safeguarding aviation safety and airspace resource management. To address the limitations of existing methods—kinetic models’ susceptibility to e...

  • Article
  • Open Access
6 Citations
3,429 Views
15 Pages

26 August 2019

An area of interest (AOI) refers to an urban area that attracts people’s attention within different urban functions through cities. The wide availability of big geo-data that are able to capture human activities and environmental socioeconomics...

  • Letter
  • Open Access
9 Citations
4,094 Views
13 Pages

Constrained Linear Deconvolution of GRACE Anomalies to Correct Spatial Leakage

  • Ki-Weon Seo,
  • Seokhoon Oh,
  • Jooyoung Eom,
  • Jianli Chen and
  • Clark R. Wilson

2 June 2020

Time-varying gravity observed by the Gravity Recovery and Climate Experiment (GRACE) satellites measures surface water and ice mass redistribution driven by weather and climate forcing and has emerged as one of the most important data types in measur...

(This article belongs to the Special Issue Terrestrial Hydrology Using GRACE and GRACE-FO)
  • Article
  • Open Access
9 Citations
7,328 Views
14 Pages

The spatial variation of geographical phenomena is a classical problem in spatial data analysis and can provide insight into underlying processes. Traditional exploratory methods mostly depend on the planar distance assumption, but many spatial pheno...

  • Article
  • Open Access
4 Citations
2,354 Views
18 Pages

Spatial–Temporal-Correlation-Constrained Dynamic Graph Convolutional Network for Traffic Flow Forecasting

  • Yajun Ge,
  • Jiannan Wang,
  • Bo Zhang,
  • Fan Peng,
  • Jing Ma,
  • Chenyu Yang,
  • Yue Zhao and
  • Ming Liu

9 October 2024

Accurate traffic flow prediction in road networks is essential for intelligent transportation systems (ITS). Since traffic data are collected from the road network with spatial topological and time series sequences, the traffic flow prediction is reg...

(This article belongs to the Special Issue Numerical Computation, Data Analysis and Software in Mathematics and Engineering, 3rd Edition)
  • Article
  • Open Access
25 Citations
5,089 Views
19 Pages

1 December 2019

Modern railway track health monitoring requires high accuracy measurements to ensure comfort and safety. Although Global Navigation Satellite System/Inertial Navigation System (GNSS/INS) integration has been extended to track geometry measurements to...

(This article belongs to the Special Issue Sensors, Big Data Analytics and Modeling for Infrastructure Monitoring and Maintenance)
  • Article
  • Open Access
582 Views
25 Pages

12 January 2026

This study systematically investigates the kinematic characteristics and static stability of a spatial under-constrained four-cable-driven parallel mechanism, specifically designed for supporting aircraft models in wind tunnel tests. Addressing the i...

  • Article
  • Open Access
3 Citations
3,642 Views
18 Pages

Spatial Data Reconstruction via ADMM and Spatial Spline Regression

  • Bang Liu,
  • Borislav Mavrin,
  • Linglong Kong and
  • Di Niu

26 April 2019

Reconstructing fine-grained spatial densities from coarse-grained measurements, namely the aggregate observations recorded for each subregion in the spatial field of interest, is a critical problem in many real world applications. In this paper, we p...

(This article belongs to the Special Issue Machine Learning Techniques Applied to Geoscience Information System and Remote Sensing)
  • Article
  • Open Access
9 Citations
5,101 Views
11 Pages

Measuring the spatial distribution of heavy metal contaminants is the basis of pollution evaluation and risk control. Considering the cost of soil sampling and analysis, spatial interpolation methods have been widely applied to estimate the heavy met...

(This article belongs to the Special Issue Heavy Metals: Environmental Health Risk Assessment and Sustainable Management)
  • Article
  • Open Access
6 Citations
6,721 Views
22 Pages

2 July 2012

Signal of interest (SOI) extraction is a vital issue in communication signal processing. In this paper, we propose two novel iterative algorithms for extracting SOIs from instantaneous mixtures, which explores the spatial constraint corresponding to...

(This article belongs to the Section Physical Sensors)
  • Article
  • Open Access
6 Citations
3,606 Views
19 Pages

18 February 2021

Numerous studies have revealed that the sparse spatiotemporal distributions of ground-level PM2.5 measurements affect the accuracy of PM2.5 simulation, especially in large geographical regions. However, the high precision and stability of ground-leve...

(This article belongs to the Special Issue Air Pollution Estimation)
  • Article
  • Open Access
3 Citations
3,573 Views
13 Pages

Many countries, including China, have implemented the spatial government policy widely known as urban growth boundary (UGB) for managing future urban growth. However, few studies have asked why we need UGB, especially pre-evaluating the utility of UG...

  • Article
  • Open Access
61 Citations
6,013 Views
19 Pages

Land-use change is a typical geographic evolutionary process characterized by spatial heterogeneity. As such, the driving factors, conversion rules, and rate of change vary for different regions around the world. However, most cellular automata (CA)...

(This article belongs to the Special Issue Spatial Data Management in Geosciences, Urban Planning, Land Management, and Cultural Heritage)
  • Technical Note
  • Open Access
257 Views
17 Pages

18 September 2026

High-spatial-resolution fractions of absorbed photosynthetically active radiation (FPAR) and leaf area index (LAI) are important for characterizing urban vegetation productivity, yet reconstructing their continuous annual dynamics remains challenging...

(This article belongs to the Special Issue Remote Sensing for Vegetation Dynamic Monitoring, Carbon and Ecological Assessment)
  • Article
  • Open Access
1 Citations
490 Views
26 Pages

Optimizing Spatial Representativeness of LULC Samples over Complex Karst Terrain Using Remote Sensing Phenology and Landform-Constrained Joint Stratification

  • Ya Li,
  • Zhongfa Zhou,
  • Denghong Huang,
  • Huanhuan Lu,
  • Ruiqi Fan,
  • Qingqing Dai,
  • Ying Luo,
  • Changyan Huang and
  • Yuexing Yu

10 June 2026

Karst regions are characterized by fragmented topography and significant micro-relief mosaics, leading to prominent spectral aliasing of land features, which can result in insufficient spatial representativeness of remote sensing samples for Land Use...

(This article belongs to the Topic Large-Scale and Long-Term Land Use and Land Cover Mapping)
  • Article
  • Open Access
421 Views
28 Pages

31 May 2026

In power systems, the combined approach of security-constrained unit commitment (SCUC) and economic dispatch (ED) to achieve security-constrained unit commitment and dispatch (SCUCD) is crucial for enhancing the safety, stability, and economic effici...

(This article belongs to the Special Issue Operation, Control, and Planning of New Power Systems)
  • Article
  • Open Access
380 Views
27 Pages

6 August 2026

The large-scale integration of wind and solar photovoltaic (PV) power is a cornerstone of low-carbon, sustainable energy systems. However, the uncertainty of the output brings great challenges to the operation and dispatching of power systems. To cle...

(This article belongs to the Section Energy Sustainability)
  • Article
  • Open Access
3 Citations
1,799 Views
30 Pages

18 September 2024

A spatial redundantly actuated parallel mechanism (RAPM) constrained by two point contact higher kinematic pairs (HKPs) has been designed, arising from the inspiration of mastication in human beings: the end effector is the lower jaw, the six kinemat...

(This article belongs to the Special Issue Bioinspired Structures for Soft Actuators)
  • Article
  • Open Access
17 Citations
4,361 Views
24 Pages

4 January 2023

Hyperspectral images contain rich features in both spectral and spatial domains, which bring opportunities for accurate recognition of similar materials and promote various fine-grained remote sensing applications. Although deep learning models have...

(This article belongs to the Section Remote Sensing Image Processing)
  • Article
  • Open Access
469 Views
21 Pages

12 July 2026

The Upper Minjiang River Basin is a critical ecological barrier in the upper Yangtze River, where forest ecosystems play a vital role in carbon sequestration, water conservation, and soil retention. Given that different forest types exhibit significa...

(This article belongs to the Special Issue Carbon Sequestration and Stabilization in Forest and Bamboo Ecosystems)
  • Article
  • Open Access
30 Citations
4,024 Views
16 Pages

Zero-Padding and Spatial Augmentation-Based Gas Sensor Node Optimization Approach in Resource-Constrained 6G-IoT Paradigm

  • Shiv Nath Chaudhri,
  • Navin Singh Rajput,
  • Saeed Hamood Alsamhi,
  • Alexey V. Shvetsov and
  • Faris A. Almalki

15 April 2022

Ultra-low-power is a key performance indicator in 6G-IoT ecosystems. Sensor nodes in this eco-system are also capable of running light-weight artificial intelligence (AI) models. In this work, we have achieved high performance in a gas sensor system...

(This article belongs to the Section Internet of Things)
  • Article
  • Open Access
455 Views
27 Pages

10 August 2026

In regions where severe topographic constraints coincide with intensive human activity, the mechanisms underlying landscape ecological risk (LER) and its spatial differentiation remain poorly understood. In particular, the nonlinear responses and thr...

(This article belongs to the Section Landscape Ecology)
  • Article
  • Open Access
13 Citations
2,579 Views
21 Pages

Research on Remote-Sensing Identification Method of Typical Disaster-Bearing Body Based on Deep Learning and Spatial Constraint Strategy

  • Lei Wang,
  • Yingjun Xu,
  • Qiang Chen,
  • Jidong Wu,
  • Jianhui Luo,
  • Xiaoxuan Li,
  • Ruyi Peng and
  • Jiaxin Li

27 March 2024

The census and management of hazard-bearing entities, along with the integrity of data quality, form crucial foundations for disaster risk assessment and zoning. By addressing the challenge of feature confusion, prevalent in single remotely sensed im...

(This article belongs to the Special Issue Deep Learning for Remote Sensing and Geodata)
  • Article
  • Open Access
1 Citations
2,096 Views
26 Pages

Evaluating Territorial Space Use Efficiency: A Geographic Data Envelopment Model Considering Geospatial Effects

  • Minrui Zheng,
  • Yin Ma,
  • Xinqi Zheng,
  • Xvlu Wang,
  • Li Li,
  • Feng Xu,
  • Xiaoyuan Zhang,
  • Fuping Gan,
  • Jianchao Wang and
  • Zhengkun Zhu

17 March 2025

Accurately evaluating territorial space use efficiency is a prerequisite for promoting the realization of high-quality development. Existing efficiency evaluation models all treat decision making units (DMUs) as independent individuals, ignoring geos...

(This article belongs to the Section Land Use, Impact Assessment and Sustainability)
  • Article
  • Open Access
7 Citations
3,342 Views
26 Pages

A Data-Driven Energy Platform: From Energy Performance Certificates to Human-Readable Knowledge through Dynamic High-Resolution Geospatial Maps

  • Tania Cerquitelli,
  • Evelina Di Corso,
  • Stefano Proto,
  • Paolo Bethaz,
  • Daniele Mazzarelli,
  • Alfonso Capozzoli,
  • Elena Baralis,
  • Marco Mellia,
  • Silvia Casagrande and
  • Martina Tamburini

12 December 2020

The energy performance certificate (EPC) is a document that certifies the average annual energy consumption of a building in standard conditions and allows it to be classified within a so-called energy class. In a period such as this, when greenhouse...

(This article belongs to the Special Issue Big Data Analytics for Smart Cities)
  • Article
  • Open Access
323 Views
19 Pages

To address the difficulty of road-constrained weed extraction and operational assessment in orchard road regions under weed encroachment, background interference, and complex illumination, this study developed a vision-based framework integrating roa...

(This article belongs to the Section Agricultural Technology)
  • Article
  • Open Access
6 Citations
3,934 Views
20 Pages

3 February 2023

To address practical challenges in establishing and maintaining robust wireless connectivity such as multi-path effects, low latency, size reduction, and high data rate, we have deployed the digital beamformer, as a spatial filter, by using the hybri...

(This article belongs to the Section Communications)
  • Article
  • Open Access
2 Citations
623 Views
29 Pages

Subliminal cues have been shown to capture attention and modulate manual response behaviour but their impact on eye movement behaviour is not well-studied. In two experiments, we examined if subliminal cues influence constrained free-choice saccades...

  • Article
  • Open Access
313 Views
23 Pages

A Novel Calibration Method for Networked X-Band Radar Based on Opposing RHI Scans

  • Hui Wang,
  • Siteng Li,
  • Yue Lai,
  • Yu Wang,
  • Jingheng Zhou and
  • Jiping Quan

23 August 2026

Weather radar calibration is essential for ensuring data consistency and quantitative precipitation estimation in X-band radar networks. Existing absolute calibration methods (e.g., metal sphere, horn antenna) suffer from high cost, poor timeliness,...

(This article belongs to the Special Issue Radar Technologies for Meteorological and Atmospheric Observations)
  • Article
  • Open Access
2 Citations
2,283 Views
22 Pages

16 March 2022

The economic losses of vegetation caused by ozone were usually evaluated with existing ozone concentrations. However, in the case a new project is assessed, the marginal losses induced by the additional emissions of ozone’s precursors are requi...

  • Article
  • Open Access
9 Citations
4,687 Views
21 Pages

Detecting Intra-Urban Housing Market Spillover through a Spatial Markov Chain Model

  • Daijun Zhang,
  • Xiaoqi Zhang,
  • Yanqiao Zheng,
  • Xinyue Ye,
  • Shengwen Li and
  • Qiwen Dai

This study analyzed the spillovers among intra-urban housing submarkets in Beijing, China. Intra-urban spillover imposes a methodological challenge for housing studies from the spatial and temporal perspectives. Unlike the inter-urban spillover, the...

(This article belongs to the Special Issue Geospatial Methods in Social and Behavioral Sciences)
  • Article
  • Open Access
6 Citations
3,665 Views
18 Pages

8 May 2023

The Visible Infrared Imaging Radiometer Suite Day/Night Band (VIIRS/DNB) nighttime light data is a powerful remote sensing data source. However, due to stray light pollution, there is a lack of VIIRS data in mid-high latitudes during the summer, resu...

(This article belongs to the Special Issue Latest Developments and Applications in Remote Sensing with Nighttime Lights)
  • Article
  • Open Access
275 Views
24 Pages

Aggregated epidemics, characterized by rapid transmission over short periods, pose severe threats to public health security, necessitating the development of precise source tracing and simulation methods to support efficient prevention and control. H...

(This article belongs to the Special Issue HealthScape: Intersections of Health, Environment, and GIS&T (2nd Edition))
  • Article
  • Open Access
2 Citations
1,676 Views
33 Pages

Constrained Metropolitan Service Placement: Integrating Bayesian Optimization with Spatial Heuristics

  • Tatiana Churiakova,
  • Ivan Platonov,
  • Mark Bezmaslov,
  • Vadim Bikbulatov,
  • Ovanes Petrosian,
  • Vasilii Starikov and
  • Sergey A. Mityagin

Metropolitan service-placement optimization is computationally challenging under strict evaluation budgets and regulatory constraints. Existing approaches either neglect capacity constraints, producing infeasible solutions, or employ population-based...

  • Article
  • Open Access
2 Citations
3,246 Views
13 Pages

25 March 2023

The present work describes a new approach for the design of a Frequency-Selective Surface (FSS) in the context of frequency filters to increase isolation between two vehicle-borne antennas. A compact FSS design based on nested square meandered resona...

(This article belongs to the Section Electrical, Electronics and Communications Engineering)
  • Article
  • Open Access
3 Citations
2,168 Views
26 Pages

17 September 2025

Cable-driven parallel robots (CDPRs) offer large workspaces with minimal infrastructure, but their control becomes difficult when the platform is under-constrained and sensing is limited. This paper investigates uncalibrated visual servoing (UVS) wit...

(This article belongs to the Section Robotics and Automation)
  • Article
  • Open Access
10 Citations
3,823 Views
16 Pages

PSI Spatially Constrained Clustering: The Sibari and Metaponto Coastal Plains

  • Nicola Amoroso,
  • Roberto Cilli,
  • Davide Oscar Nitti,
  • Raffaele Nutricato,
  • Muzaffer Can Iban,
  • Tommaso Maggipinto,
  • Sabina Tangaro,
  • Alfonso Monaco and
  • Roberto Bellotti

14 May 2023

PSI data are extremely useful for monitoring on-ground displacements. In many cases, clustering algorithms are adopted to highlight the presence of homogeneous patterns; however, clustering algorithms can fail to consider spatial constraints and be p...

(This article belongs to the Topic Natural Hazards and Disaster Risks Reduction)
  • Article
  • Open Access
4 Citations
1,255 Views
24 Pages

Building clustering is a key challenge in cartographic generalization, where the goal is to group spatially related buildings into semantically coherent clusters while preserving the true distribution patterns of urban structures. Existing methods of...

  • Article
  • Open Access
446 Views
19 Pages

7 July 2026

In chemical industrial parks, evacuation during LPG tank leakage is governed not only by travel distance but by the loss of safe corridors, failed exits, and congestion induced by spatially coupled vapor exposure, explosion overpressure, and thermal...

(This article belongs to the Section Process Control, Modeling and Optimization)
  • Technical Note
  • Open Access
5 Citations
2,720 Views
15 Pages

27 November 2021

Compared with traditional optical and multispectral remote sensing images, hyperspectral images have hundreds of bands that can provide the possibility of fine classification of the earth’s surface. At the same time, a hyperspectral image is an...

(This article belongs to the Special Issue Applications of Remote Sensing for Resources Conservation)
  • Article
  • Open Access
438 Views
21 Pages

Spatially Constrained 3D Scene Graphs for Scene-Grounded Subtask Generation

  • Junsang Ryu,
  • Siwoo Lee,
  • Inseong Choi and
  • Soohwan Song

28 September 2026

3D scene graphs connect spatial perception with high-level language reasoning, but unverified false-positive groundings can impair downstream subtask generation. We propose a feed-forward, spatially constrained framework that grounds task-relevant ob...

(This article belongs to the Special Issue New Trends in the Development of Intelligent Unmanned System Control)

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