Titlebook: Crowdsourcing Geographic Knowledge; Volunteered Geograph Daniel Sui,Sarah Elwood,Michael Goodchild Book 2013 Springer Science+Business Medi

Cytology

整洁漂亮

Figate

Robi Polikar,Fritz Keinert,Mary Helen Greer core concepts behind collective authorship; then provides an overview of Wikipedia, its contributors, and their production processes; discusses the results and implications from spatial modeling of geotagged Wikipedia article contributions; and concludes with future research issues.

听写

Multi-Layered Image Representationd incomplete records), validate the coverage and accuracy of web demographics, and explore potential applications. Web demographics must be used cautiously in light of the uncertainty of web demographics (e.g., digital divide), privacy issues, and other societal impacts.

思想流动

harmony

导师

Understanding the Value of VGIcifically, the chapter proposes several metaphors (serendipitous and unexpected discovery, Debord’s ‘Dérives’ metaphor, Lego block theory) that can be used to conceptualize VGI value and the potential to adapt the ‘fitness-for-use’ concept to guide user assessments of VGI value in practice.

纯朴

To Volunteer or to Contribute Locational Information? Towards Truth in Labeling for Crowdsourced Geonce and to help begin to identify possible biases. In the concluding discussion, this chapter argues that the simple distinction between CGI and VGI is valuable for assessments of data’s fitness for use. Following the truth-in-labeling principle known for food products, differentiating between CGI a

开玩笑

Metadata Squared: Enhancing Its Usability for Volunteered Geographic Information and the GeoWeb, a map of the world created entirely by volunteers. Changes in metadata requirements are examined for usability, the ease with which metadata supports coproduction of data by communities of users, how metadata enhances findability, and how the relationship between metadata and data has changed. We

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