Results 41 to 50 of about 4,402 (207)

A USER-DRIVEN SELECTION OF VGI BASED ON MINIMUM ACCEPTABLE QUALITY LEVELS [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Despite Volunteered Geographic Information (VGI) activities are now extremely helpful in a number of scientific applications, researchers and decision makers oppose some resistance to the usage of volunteered contributions, due to quality issues. Several
G. Bordogna, P. Carrara, L. Criscuolo, M. Pepe, A. Rampini   +4 more
doaj   +1 more source

Coupling of satellite radar data and Volunteered Geographic Information (VGI) in an innovative approach aimed at supporting landslide inventories development [PDF]

, 2019
After major geo-hydrological disasters, the rapid detection of both location and extension of the areas struck by floods and landslides is essential to manage recovery operations. In these cases, one of the most important tools required by decision-makers is a georeferenced map showing the affected areas.
Esposito, Giuseppe, Marchesini, Ivan, Mondini, Alessandro, Rossi, Mauro, Reichenbach, Paola, Salvati, Paola   +11 more
openaire   +1 more source

Citizen science approaches to crowdsourcing food environment data: A scoping review of the literature

Obesity Reviews, Volume 24, Issue 11, November 2023., 2023
Summary Globally, the adoption and implementation of policies to improve the healthiness of food environments and prevent population weight gain have been inadequate. This is partly because of the complexity associated with monitoring dynamic food environments.
Jacqueline Monaghan, Kathryn Backholer, Amy‐Louise McKelvey, Rebecca Christidis, Ann Borda, Cobi Calyx, Alessandro Crocetti, Christine Driessen, Christina Zorbas   +8 more
wiley   +1 more source

The context of outdoor walking: A classification of user‐generated routes

The Geographical Journal, Volume 189, Issue 3, Page 485-500, September 2023., 2023
Short Abstract Analysing about 4 million user‐generated walking routes produced in Great Britain, we characterise routes combining primary attributes and contextual information, including land cover and points of interest. Second, by applying unsupervised learning to this data model, we produce the Walking Route Classification.
Andrea Ballatore, Stefano Cavazzi, Jeremy Morley   +2 more
wiley   +1 more source

MapSafe: A complete tool for achieving geospatial data sovereignty

Transactions in GIS, Volume 27, Issue 6, Page 1680-1698, September 2023., 2023
Abstract Sensitive geographic data are invaluable assets for the people to whom they belong and their disclosure should be decided by the sovereign data owner (SDO). Due to several high‐profile data breaches and business models that commercialize user data, the need for new approaches to geoprivacy and data sovereignty has grown.
Pankajeshwara Sharma, Michael Martin, David Swanlund   +2 more
wiley   +1 more source

A Spatio-Temporal VGI Model Considering Trust-Related Information

ISPRS International Journal of Geo-Information, 2016
Over the past several years, volunteered geographic information (VGI) has expanded rapidly. VGI collection has been proven to serve as a highly successful means of acquiring timely and detailed global spatial data.
Yijiang Zhao, Xiaoguang Zhou, Guangqiang Li, Hanfa Xing   +3 more
doaj   +1 more source

Contribution of Geomatics Engineering and VGI Within the Landslide Risk Assessment Procedures [PDF]

, 2015
This paper presents a literature review on the methodology called Volunteered Geographic Information (VGI) and its use for Landslide Risk Assessment (LRA).
BERTACCHINI, Eleonora, CAPRA, Alessandro, CASTAGNETTI, Cristina, Ceppi, C, MANCINI, Francesco, RIVOLA, RICCARDO   +5 more
core   +1 more source

Motivating and Sustaining Participation in VGI [PDF]

, 2017
Volunteers are the key component in the collection of Volunteered Geographic Information (VGI), so what motivates their participation, what strategies work in recruitment and how sustainability of participation can be achieved are key questions that need
Brovelli, M., Fritz, S., See, L.
core   +1 more source

MusA: Using Indoor Positioning and Navigation to Enhance Cultural Experiences in a museum [PDF]

, 2013
In recent years there has been a growing interest into the use of multimedia mobile guides in museum environments. Mobile devices have the capabilities to detect the user context and to provide pieces of information suitable to help visitors discovering ...
Alciatore, Andrea Bottino, Andrea Martina, Baharuddin, Bellotti, Bihler, Bitgood, Bitgood, Bruno, Chen, Chen, Csikszentmihalyi, Dean, Douglas, Emmanouilidis, Falk, Faugeras, Fischler, Ghiani, Ghiani, Giovanni Malnati, Guillemaut, Hausmann, Hausmann, Hsu, Huang, Irene Rubino, Iurgel, Jetmir Xhembulla, Kang, Kenteris, Maybank, Mulloni, Packer, Proctor, Rounds, Russo, Ruíz, Schweighofer, Serrell, Stock, Traum, Tsai, Veron, Wang, Yanying, Zhang, Zhang   +47 more
core   +3 more sources

Quality assessment of volunteered geographic information for outdoor activities: an analysis of OpenStreetMap data for names of peaks in Japan

Geo-spatial Information Science, 2023
Geographical studies of outdoor activities have increased in recent years with the rise in popularity of these activities worldwide, including in Japan. Volunteered geographic information (VGI) is a key tool for organizing outdoor activities as it offers
Jun Yamashita, Toshikazu Seto, Nobusuke Iwasaki, Yuichiro Nishimura   +3 more
doaj   +1 more source