Distance and Attraction: Gravity Models for Geographic Content Production

論文URL:http://dl.acm.org/citation.cfm?doid=3173574.3173722

論文アブストラクト:Volunteered Geographic Information (VGI), such as contributions to OpenStreetMap and geotagged Wikipedia articles, is often assumed to be produced locally. However, recent work has found that peer-produced VGI is frequently contributed by non-locals. We evaluate this approach across hundreds of content types from Wikipedia, OpenStreetMap, and eBird, and show that these models can describe more than 90% of "VGI flows" for some content types. Our findings advance geographic HCI theory, suggesting some spatial mechanisms underpinning VGI production. We also discuss design implications that can help (a) human and algorithmic consumers of VGI evaluate the perspectives it contains and (b) address geographic coverage variations in these platforms (e.g. via more effective volunteer recruitment strategies).

日本語のまとめ:

ボランタリー地理情報(VGI)は、情報提供者の居る場所によりその情報の質や量が変わる。この研究では、VGIの質や量が提供者の場所によりどのように影響するかを重力モデルを用いてモデル化し、その評価を行った。

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