Download Crowdsourcing Geographic Knowledge: Volunteered Geographic by Daniel Sui, Sarah Elwood, Michael Goodchild PDF

By Daniel Sui, Sarah Elwood, Michael Goodchild

The phenomenon of volunteered geographic info is a part of a profound transformation in how geographic information, info, and data are produced and circulated. by means of situating volunteered geographic details (VGI) within the context of big-data deluge and the data-intensive inquiry, the 20 chapters during this booklet discover either the theories and functions of crowdsourcing for geographic wisdom creation with 3 sections concentrating on 1).VGI, Public Participation, and Citizen technology; 2). Geographic wisdom construction and position Inference; and 3). rising purposes and New demanding situations. This booklet argues that destiny growth in VGI examine relies largely on construction robust linkages with assorted geographic scholarship. members of this quantity situate VGI learn in geography’s middle issues with area and position, and supply a number of methods of addressing chronic demanding situations of caliber insurance in VGI. This ebook positions VGI as a part of a shift towards hybrid epistemologies, and very likely a fourth paradigm of data-intensive inquiry around the sciences. It additionally considers the results of VGI and the exaflood for extra time-space compression and new varieties, levels of electronic inequality, the renewed value of geography, and the position of crowdsourcing for geographic wisdom production.

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Additional info for Crowdsourcing Geographic Knowledge: Volunteered Geographic Information (VGI) in Theory and Practice

Sample text

The Ushahidi-Haiti platform represents well the social value of such an application for crisis management. Operational only 3 days after the 2010 earthquake, it received over 3,000 testimonies of relief needs in 2 weeks with more than half being posted via SMS. Basic mapping needs were accentuated by the earthquake as well, given that there had been no recent mapping by the government 2 Understanding the Value of VGI 21 and that the national Haitian map agency was totally destroyed by the earthquake.

First, it can foster a culture of bottom-up participation where citizens can have direct control over how their viewpoints are represented within a digital mapping environment with less expert oversight and control than is typical with more structured PPGIS cases (Roche 2011). Second, participation in collaborative VGI builds individual and community capacity through improved social networks and technical skill sets. Third, the potential to mobilize hundreds, if not thousands, of loosely organized contributors over short periods of time and collaboratively construct data through distributed means is often far more responsive to emerging needs than governments or even private firms could be on their own, as Goodchild and Glendon (2010) demonstrate for crisis management purposes.

0 model to allow users to develop community-based evaluations of VGI value. For example, Grira et al. (2010) adapted the fitness-for-use concept to explore how uncertainty regarding the quality of a VGI data set can be addressed in terms of users’ assessments of its suitability for various tasks. We suggest that a parallel adaptation of fitness for use could be made to provide mass appraisals of the value that users ascribe to specific VGI data sets and their associated processes. These user-based assessments of VGI could play the same role as users’ evaluations of restaurants and vacation destinations do on sites such as Yelp!

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