Results 41 to 50 of about 70,330 (312)

The conceptual schema in geospatial data standard design with application to GroundWaterML2

open access: yes, 2018
The explosive growth of geospatial data has stimulated the development of many standards aimed at decreasing data heterogeneity and enhancing data use.
Boisvert, Eric   +8 more
core   +1 more source

CELL5M: A geospatial data and analytics platform of harmonized multi-disciplinary data layers for Africa South of the Sahara

open access: yes, 2020
Spatially-explicit data is increasingly becoming available across disciplines, yet they are often limited to a specific domain. In order to use such datasets in a coherent analysis, such as to decide where to target specific types of agricultural ...
HarvestChoice, International Food Policy Research Institute (IFPRI); University of Minnesota
core   +1 more source

Geospatial Technologies in Archaeology

open access: yes, 2023
This chapter describes the application of geospatial technologies in archaeology and explains how they present new ways of understanding and visualizing the past. It examines the value of using key technologies of GIS and remote sensing (including Lidar),
Specht, D., Kent, A.J.
core   +1 more source

Human‐in‐the‐Loop Swarms: A Bionic Swarm Approach to Real‐World Soil Mapping

open access: yesAdvanced Intelligent Systems, EarlyView.
This article introduces the “Bionic Swarm,” a novel system that lowers the barriers to real‐world swarm validation by abstracting difficult hardware tasks to app‐guided human agents. We demonstrate the system's utility through the experimental validation of a geotechnical soil‐mapping swarm algorithm and show superior performance to baseline approaches
Petras Swissler   +5 more
wiley   +1 more source

TPP-SAM: A Trajectory Point Prompting Segment Anything Model for Zero-Shot Road Extraction From High-Resolution Remote Sensing Imagery

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The segment anything model (SAM) enables zero-shot or interactive segmentation of visual content and has shown remarkable performance with natural images.
Tao Wu   +4 more
doaj   +1 more source

Point cloud registration for LiDAR and photogrammetric data: A critical synthesis and performance analysis on classic and deep learning algorithms

open access: yesISPRS Open Journal of Photogrammetry and Remote Sensing, 2023
Three-dimensional (3D) point cloud registration is a fundamental step for many 3D modeling and mapping applications. Existing approaches are highly disparate in the data source, scene complexity, and application, therefore the current practices in ...
Ningli Xu   +2 more
doaj   +1 more source

Geospatial data sharing in Saudi Arabia [PDF]

open access: yes, 2003
This research started with a realization that two organizations in Saudi Arabia were spending large amounts of money, millions of dollars in fact, in acquiring separate sets of geospatial data that had identical basemap components. Both the organizations
Lee, Donald C.
core  

Using photovoice to understand community perceptions of firearm risks and protective factors among Asian Americans

open access: yesAmerican Journal of Community Psychology, EarlyView.
Abstract This study used photovoice methodology to explore Asian Americans' perspectives on the root causes and protective factors of firearm violence in their communities. Photovoice provided a participatory platform for community members to document lived experiences and identify priorities for change.
Tsu‐Yin Wu   +4 more
wiley   +1 more source

Multisource Data Fusion With Graph Convolutional Neural Networks for Node-Level Traffic Flow Prediction

open access: yesJournal of Advanced Transportation
With the rapid development of transport technology and the increasing complexity of traffic patterns, integrating multiple data sources for traffic flow prediction has become crucial to overcome the defects of a single data source.
Lei Huang, Jianxin Qin, Tao Wu
doaj   +1 more source

BUILDING FEATURES RECOGNITION FROM UNCERTAIN 3D LIDAR POINT CLOUDS: A SEMANTIC APPROACH [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
LiDAR technology allows rapid observation of high-resolution and precise 3D point clouds for diverse applications in urban and natural areas. However, uneven density and incomplete point clouds make LiDAR data processing more challenging for the ...
X.-F. Xing   +3 more
doaj   +1 more source

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