An unexpectedly large count of trees in the West African Sahara and Sahel

M Brandt, CJ Tucker, A Kariryaa, K Rasmussen, C Abel… - Nature, 2020 - nature.com
A large proportion of dryland trees and shrubs (hereafter referred to collectively as trees)
grow in isolation, without canopy closure. These non-forest trees have a crucial role in …

The geography of Pokémon GO: beneficial and problematic effects on places and movement

A Colley, J Thebault-Spieker, AY Lin… - Proceedings of the …, 2017 - dl.acm.org
The widespread popularity of Pokémon GO presents the first opportunity to observe the
geographic effects of location-based gaming at scale. This paper reports the results of a …

How are information deserts created? A theory of local information landscapes

M Lee, BS Butler - Journal of the Association for Information …, 2019 - Wiley Online Library
To understand information accessibility issues, research has examined human and
technical factors by taking a socio‐technical view. While this view provides a profound …

Toward a geographic understanding of the sharing economy: Systemic biases in UberX and TaskRabbit

J Thebault-Spieker, L Terveen, B Hecht - ACM Transactions on …, 2017 - dl.acm.org
Despite the geographically situated nature of most sharing economy tasks, little attention
has been paid to the role that geography plays in the sharing economy. In this article, we …

Rules and rule-making in the five largest wikipedias

S Hwang, A Shaw - Proceedings of the International AAAI Conference …, 2022 - ojs.aaai.org
The governance of many online communities relies on rules created by participants.
However, prior work provides limited evidence about how these self-governance efforts …

Not at home on the range: Peer production and the urban/rural divide

IL Johnson, Y Lin, TJJ Li, A Hall, A Halfaker… - Proceedings of the …, 2016 - dl.acm.org
Wikipedia articles about places, OpenStreetMap features, and other forms of peer-produced
content have become critical sources of geographic knowledge for humans and intelligent …

Digital hegemonies: the localness of search engine results

A Ballatore, M Graham, S Sen - Annals of the American …, 2017 - Taylor & Francis
Every day, billions of Internet users rely on search engines to find information about places
to make decisions about tourism, shopping, and countless other economic activities. In an …

The gendered geography of contributions to OpenStreetMap: Complexities in self-focus bias

M Das, B Hecht, D Gergle - Proceedings of the 2019 CHI Conference on …, 2019 - dl.acm.org
Millions of people worldwide contribute content to peer production repositories that serve
human information needs and provide vital world knowledge to prominent artificial …

''Will Check-in for Badges'': Understanding Bias and Misbehavior on Location-Based Social Networks

G Wang, S Schoenebeck, H Zheng… - Proceedings of the …, 2016 - ojs.aaai.org
Social computing researchers are using data from location-based social networks (LBSN),
eg," Check-in" traces, as approximations of human movement. Recent work has questioned …

Geographic Biases are'Born, not Made' Exploring Contributors' Spatiotemporal Behavior in OpenStreetMap

J Thebault-Spieker, B Hecht, L Terveen - Proceedings of the 2018 ACM …, 2018 - dl.acm.org
The evolution of contributor behavior in peer production communities over time has been a
subject of substantial interest in the social computing community. In this paper, we extend …