Results 251 to 260 of about 19,531 (263)
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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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International Journal of Geographical Information Science, 2022
Yu Feng, Xiao Huang, Monika Sester
semanticscholar +1 more source
Yu Feng, Xiao Huang, Monika Sester
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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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Combining VGI with Viewsheds for Photo Tag Suggestion [PDF]
, 2012 In this research we attempt to develop an improved method for tagging of digital photos, making the tagging process simpler and more accurate for users, and thus ultimately increasing the quality of the VGI data as a whole. Our method combines Volunteered Geographic Information (VGI) in the form of tags on photo sharing websites (such as Flickr and ...
Otto Huisman +2 more
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VGI-based spatial data infrastructure for land administration
Land Use Policy, 2022M. Naghavi +4 more
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VGI and Public Health: Possibilities and Pitfalls
2012Recent advances in technologies that allow for the collection of volunteered geographic information (VGI) are providing new opportunities for health research. These technologies provide for the collection of time-sensitive, fluid data from a broad pool of subjects using sophisticated yet easy-to-use data collection tools – principally the smartphone ...
Sayone Thihalolipavan +2 more
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Study Three: Assessing the Impact of VGI
2014Study Two demonstrated that in a realistic use scenario, consumers are more likely to use VGI and PGI alongside each other (where available) in order to converge on a truth than to use individual VGI or PGI data sets. However, as highlighted by Rieh (2002) the way in which information is perceived by a consumer during an information search is based on ...
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Core standard graphic package for the VGI 3400
ACM SIGGRAPH Computer Graphics, 1978Implementing the 1977 Core System standard proposal of ACM/Siggraph for a state-of-the-art microprogrammable refresh display system presents a number of design tradeoffs. Thus, there are areas of contention between a strict interpretation of the standards and the advanced capabilities of the display that led the user to purchase such a system in the ...
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