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Virtual geographic information system (VGIS)
Proceedings of the Twenty-Eighth Hawaii International Conference on System Sciences, 1994The implementation and proficient use of GISs has become so complicated that it is growing towards a domain in itself. The "Virtual GIS" (VGIS) aims at the use of the "knowledge base" that is inherent in a GIS for the automatic interpretation of remotely sensed images.
Jochen Albrecht, Manfred Ehlers
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GeoJournal, 2008
For the most part, we find our way around the planet by tapping memory, perhaps by recalling past routes, or sometimes by accessing stored mental images that approximate maps. In other cases, however, we must rely on information collected and made available to us by others.
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For the most part, we find our way around the planet by tapping memory, perhaps by recalling past routes, or sometimes by accessing stored mental images that approximate maps. In other cases, however, we must rely on information collected and made available to us by others.
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2017
The advent of user-generated content, crowdsourcing and other forms of lay data generation have led to opposing arguments about the quality and reliability of data in the geoweb,. The main focus of this chapter is an ‘experiment' to test the quality, validity and lay monitoring of volunteered geographic information (VGI) data.
Michael Buzzelli +3 more
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The advent of user-generated content, crowdsourcing and other forms of lay data generation have led to opposing arguments about the quality and reliability of data in the geoweb,. The main focus of this chapter is an ‘experiment' to test the quality, validity and lay monitoring of volunteered geographic information (VGI) data.
Michael Buzzelli +3 more
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Assessing uncertainty in VGI for emergency response
Cartography and Geographic Information Science, 2014This research project examines the geographic data produced by volunteers via the Ushahidi web platform in response to the earthquake that struck Haiti in January 2010.
Scott M. Freundschuh +1 more
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Danish journal of geography, 2019
This paper analyses visitor monitoring and the public use of protected areas using volunteered geographic information (VGI) as a source of big data and, as the object of study, the Ebro Delta Natura 2000 site (west Mediterranean basin).
Joan Jurado Rota +2 more
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This paper analyses visitor monitoring and the public use of protected areas using volunteered geographic information (VGI) as a source of big data and, as the object of study, the Ebro Delta Natura 2000 site (west Mediterranean basin).
Joan Jurado Rota +2 more
semanticscholar +1 more source
GeoBI and Big VGI for Crime Analysis and Report
2015 3rd International Conference on Future Internet of Things and Cloud, 2015Geographic Information Systems (GIS) have left being a tool for academics and specialist enterprises and it is becoming a massive tool. Initially, citizens had a passive interaction about this kind of systems, which were used to retrieve data of interest on a map, however their role has changed and has become a major contributor of geographic ...
Federico Herrera +2 more
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Quality Attributes and Methods for VGI
2016The widespread use of GPS-equipped devices such as smartphones and tablets and the easy handling of online maps are simplifying the production and dissemination of volunteered geographic information (VGI) through the internet. VGI systems collect and distribute this type of information and can be used, for example, in cases of natural disasters ...
Rafael Oliveira Pereira +3 more
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Situating the Adoption of VGI by Government
2012Governments have long been active online, providing services and information to citizens. With the development of Web 2.0 technology, many governments are considering how they can better engage with and accept citizen input online, particularly through the gathering and use of volunteered geographic information (VGI).
Peter Johnson, Renee Sieber
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Improving Accessibility Through VGI and Crowdsourcing
2017Accessibility is an important element in the life of those who have certain limitations, such as the physically disabled and visually impaired people. However, one of the greatest challenges for this group is to find paths and areas adapted to their limitations while performing their daily activities, since not all environments they explore have these ...
Igor Gomes Cruz, Claudio E.C. Campelo
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