Results 41 to 50 of about 2,365 (174)

Qualidade do Posicionamento em Aplicativos VGI Obtido por Sensores de Localização em Smartphones

open access: yesRevista Brasileira de Cartografia, 2019
O artigo apresenta a avaliação da qualidade do posicionamento obtido por sensores de localização acoplados em smartphones, abordando o seu desempenho para a coleta de Informações Geográficas Voluntárias (VGI). Os experimentos foram realizados na forma de
Gabriel Araujo Oliveira   +3 more
doaj   +1 more source

The Future of VGI

open access: yes, 2017
In this final chapter, we speculate on future developments in the field of Volunteered Geographic Information (VGI); we focus on how VGI will be a affected by future technological developments, but we also consider issues such as VGI quality, the relationship of VGI with science and citizens, and the impact of VGI in future cities and societies.
Antoniou, V.   +9 more
openaire   +4 more sources

The V in VGI: Citizens or Civic Data Sources

open access: yesUrban Planning, 2016
Volunteered geographic information (VGI), delivered via mobile and web apps, offers new potentials for civic engagement. If framed in the context of open, transparent and accountable governance then presumably VGI should advance dialogue and consultation
Suthee Sangiambut, Renee Sieber
doaj   +1 more source

Mapping citizens’ emotions: participatory planning support system in Olomouc, Czech Republic

open access: yesJournal of Maps, 2019
Community mapping and emotional cartography have close links to participatory planning in the urban environment. The case study presented in this paper describes the deployment of the Emotional Maps platform for the collection and visualisation of ...
Jiří Pánek
doaj   +1 more source

ASSESSMENT OF COMPLETENESS AND POSITIONAL ACCURACY OF LINEAR FEATURES IN VOLUNTEERED GEOGRAPHIC INFORMATION (VGI) [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Recent advances in spatial data collection technologies and online services dramatically increase the contribution of ordinary people to produce, share, and use geographic information. Collecting spatial data as well as disseminating them on the internet
M. Eshghi, A. A. Alesheikh
doaj   +1 more source

VGI FOR LAND ADMINISTRATION – A QUALITY PERSPECTIVE [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
Abstract. Since the use of volunteered geographic information (VGI) or crowd sourced data (Goodchild, 2007) became more common, several people proposed the use of such methods of data collection for various fields. Success stories were Wikipedia encyclopaedia and OpenStreetMap (OSM), but also using VGI in land administration has been proposed.
G. Navratil, A. U. Frank
openaire   +3 more sources

IMPREMENTATION OF VGI-BASED GEOPORTAL FOR EMPOWERING CITIZEN’S GEOSPATIAL OBSERVATORIES RELATED TO URBAN DISASTER MANAGEMENT [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
The volunteered geospatial information (VGI) will be efficient and cost-effective method for generating and sharing large disasterrelated geospatial data.
S. Lee
doaj   +1 more source

Determining the data quality-influencing characteristics of participants in volunteered geographic information campaigns – the case of maritime disasters

open access: yesGeomatics, Natural Hazards & Risk
This study analyses how participant characteristics influence the quality of participants in volunteered geographic information (VGI). Despite the wide use of VGI in different areas, the quality of the data collected can vary significantly due to the ...
Marina Tavra, Anka Lisec, Vlado Cetl
doaj   +1 more source

ASSESSING VOLUNTEERED GEOGRAPHIC INFORMATION (VGI) QUALITY BASED ON CONTRIBUTORS' MAPPING BEHAVIOURS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
VGI changed the mapping landscape by allowing people that are not professional cartographers to contribute to large mapping projects, resulting at the same time in concerns about the quality of the data produced.
D. Bégin, R. Devillers, S. Roche
doaj   +1 more source

Wood anatomical trait correlations with hydraulic efficiency and safety in an aseasonal wet tropical forest

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Xylem anatomy underpins the capacity of trees to transport water while avoiding hydraulic failure, shaping species performance and resilience to climate change. However, the specific ways anatomical traits underpin hydraulic trade‐offs in tropical forests remain debated.
Julia Valentim Tavares   +8 more
wiley   +1 more source

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