Results 51 to 60 of about 7,960 (210)

Research on Navigation Safety Evaluation of Coastal Waters Based on Dynamic Irregular Grid

open access: yesJournal of Marine Science and Engineering, 2022
Despite being a minor probability event, marine accidents can cause serious consequences such as casualties, environmental damage, and even massive economic losses.
Jinqiang Bi   +5 more
doaj   +1 more source

Identifying and Mapping Industrial Districts Through a Spatially Constrained Cluster‐Wise Regression Approach

open access: yesJournal of Regional Science, Volume 65, Issue 2, Page 403-428, March 2025.
ABSTRACT The aim of this article is to exploit an innovative spatial econometric approach to map and study the evolving patterns of industrial districts (IDs). The procedure can be classified as a k‐means cluster‐wise regression procedure and is designed to detect homogeneous areas of subcontracting activity.
Jacopo Canello   +3 more
wiley   +1 more source

A complete solution of cartographic displacement based on elastic beams model and Delaunay triangulation [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
In map production and generalization, it is inevitable to arise some spatial conflicts, but the detection and resolution of these spatial conflicts still requires manual operation.
Y. Liu, Q. Guo, Y. Sun
doaj   +1 more source

Geological surface reconstruction from 3D point clouds

open access: yesMethodsX, 2021
The numerical simulation of phenomena such as subsurface fluid flow or rock deformations are based on geological models, where volumes are typically defined through stratigraphic surfaces and faults, which constitute the geometric constraints, and then ...
Cristina Serazio   +3 more
doaj   +1 more source

Investigation of Solution Accuracy in PFEM Simulations Using Benchmark Problems

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 2, June 2026.
ABSTRACT The simulation of large topological changes, such as those occurring in Cone Penetration Testing (CPT) and vibratory pile driving, remains a major challenge in computational geomechanics. Excessive mesh distortions render classical approaches like the Finite Element Method (FEM) unsuitable, emphasizing the need for alternative methodologies ...
Antaeus Bettmann   +4 more
wiley   +1 more source

LA-GATs: A Multi-Feature Constrained and Spatially Adaptive Graph Attention Network for Building Clustering

open access: yesISPRS International Journal of Geo-Information
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.
Xincheng Yang, Xukang Xie, Dingming Liu
doaj   +1 more source

Skeleton Line Extraction Method in Areas with Dense Junctions Considering Stroke Features

open access: yesISPRS International Journal of Geo-Information, 2019
Extraction of the skeleton line of complex polygons is difficult, and a hot topic in map generalization study. Due to the irregularity and complexity of junctions, it is difficult for traditional methods to maintain main structure and extension ...
Chengming Li   +3 more
doaj   +1 more source

Indoor 3D Route Modeling Based On Estate Spatial Data [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
Indoor three-dimensional route model is essential for space intelligence navigation and emergency evacuation. This paper is motivated by the need of constructing indoor route model automatically and as far as possible.
H. Zhang, Y. Wen, J. Jiang, W. Huang
doaj   +1 more source

Incremental Visual-Inertial 3D Mesh Generation with Structural Regularities

open access: yes, 2019
Visual-Inertial Odometry (VIO) algorithms typically rely on a point cloud representation of the scene that does not model the topology of the environment. A 3D mesh instead offers a richer, yet lightweight, model.
Carlone, Luca   +3 more
core   +1 more source

On Point Spread Function modelling: towards optimal interpolation [PDF]

open access: yes, 2011
Point Spread Function (PSF) modeling is a central part of any astronomy data analysis relying on measuring the shapes of objects. It is especially crucial for weak gravitational lensing, in order to beat down systematics and allow one to reach the full ...
Adam Amara   +25 more
core   +2 more sources

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