Results 121 to 130 of about 19,531 (263)

Desktop Method to Map and Assess Environmental Impacts of Formal and Informal Mountain Biking Trails in an Urban National Park

open access: yesEcological Management &Restoration, Volume 26, Issue 2, May 2025.
ABSTRACT Recreational trails, including informal trails created by visitors, have a range of ecological impacts, but mapping and assessing these impacts can be expensive and time‐consuming. It is increasingly possible to harness publicly available data posted by park visitors to fitness platforms and combine it with other spatial and field data to help
Isabella Smith   +1 more
wiley   +1 more source

quando una GSDI Conference in Italia? Insieme è possibile!

open access: yesGEOmedia, 2009
When a GSDI Conference in Italy? Together it's possible The collaboration between web log authors and GEOmedia may help "neo" and "paleo" geographers (following the neologisms introduced by Ed Parsons) to have a long-lasting dialogue.
Sergio Farrugia
doaj  

VGI and crowdsourced data credibility analysis using spam email detection techniques

open access: yesInternational Journal of Digital Earth, 2018
Volunteered geographic information (VGI) can be considered a subset of crowdsourced data (CSD) and its popularity has recently increased in a number of application areas.
Saman Koswatte   +2 more
doaj   +1 more source

The Spatial-Comprehensiveness (S-COM) Index: Identifying Optimal Spatial Extents in Volunteered Geographic Information Point Datasets

open access: yesISPRS International Journal of Geo-Information, 2020
Social media and other forms of volunteered geographic information (VGI) are used frequently as a source of fine-grained big data for research.
Haydn Lawrence   +3 more
doaj   +1 more source

Towards Automatic Extraction and Updating of VGI-Based Road Networks Using Deep Learning

open access: yesRemote Sensing, 2019
This work presents an approach to road network extraction in remote sensing images. In our earlier work, we worked on the extraction of the road network using a multi-agent approach guided by Volunteered Geographic Information (VGI).
Prajowal Manandhar   +3 more
semanticscholar   +1 more source

Defining Concept Drift and Its Variants in Research Data Management: A Scientometric Case Study on Geographic Information Science

open access: yesTransactions in GIS, Volume 29, Issue 3, May 2025.
ABSTRACT Just as the language used to express them, concepts constantly evolve, due to changing cultural norms, scientific progress, or major events that (re)shape our understanding of the world. For example, as humans increasingly contribute to disasters, e.g., by altering the landscape, the line between natural and anthropogenic disasters blurs. This
Meilin Shi   +5 more
wiley   +1 more source

Numerical approach for retention characteristics of double floating-gate memories

open access: yes, 2010
We report on a numerical investigation in which memory characteristics of double floating-gate (DFG) structure were compared to those of the conventional single floating-gate structure, including an interference effect between two cells.
Ichige M.   +5 more
core   +1 more source

Multifunctional Heterogeneous Cobalt Catalyst for the One‐Pot Synthesis of Benzimidazoles by Reductive Coupling of Dinitroarenes with Aldehydes in Water

open access: yesChemSusChem, Volume 18, Issue 8, April 14, 2025.
The one‐pot synthesis of benzimidazoles from 1,2‐dinitroarenes and aldehydes is first ever reported in water, using a non‐noble metal‐based catalyst and hydrogen as a reductant under mild reaction conditions. The synthesis of multifunctional carbon‐supported N,P‐incorporated Co‐based catalyst (Co2PNx@NC) is key to obtaining the pursued benzimidazoles ...
José Luis del Río‐Rodríguez   +7 more
wiley   +1 more source

Exploring the zoonotic potential of Mycobacterium avium subspecies paratuberculosis through comparative genomics.

open access: yesPLoS ONE, 2011
A comparative genomics approach was utilised to compare the genomes of Mycobacterium avium subspecies paratuberculosis (MAP) isolated from early onset paediatric Crohn's disease (CD) patients as well as Johne's diseased animals.
James W Wynne   +6 more
doaj   +1 more source

Extracting Typhoon Disaster Information from VGI Based on Machine Learning

open access: yesJournal of Marine Science and Engineering, 2019
The southeastern coast of China suffers many typhoon disasters every year, causing huge casualties and economic losses. In addition, collecting statistics on typhoon disaster situations is hard work for the government.
J. Yu, Qiansheng Zhao, C. Chin
semanticscholar   +1 more source

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