The Wisdom of Crowds
The multimedia challenges raised by pervasive games
Proceedings of the 13th annual ACM international conference on Multimedia
MobiMissions: the game of missions for mobile phones
ACM SIGGRAPH 2007 educators program
Designing games with a purpose
Communications of the ACM - Designing games with a purpose
EyeSpy: supporting navigation through play
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Matchin: eliciting user preferences with an online game
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Hitchers: designing for cellular positioning
UbiComp'06 Proceedings of the 8th international conference on Ubiquitous Computing
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The idea of outsourcing geospatial data creation tasks to the crowd (volunteered geographic information, VGI) has become quite popular in the field of geographic information science (GIScience). As one approach to VGI, location-based games (LBGs) have been shown to be successful in motivating non-expert users to collect and tag geospatial data. However, the central VGI problem of data quality has so far not been solved satisfyingly. Previous studies show that games that reward their players for in- or post-game data reviewing can assure only a validation rate of about 40% of the data. We address this problem with a new LBG design pattern, based on game rules that encourage players to take the decisions of others into account while making their data collecting decisions. We empirically evaluate the new pattern by comparing the positional accuracy of data collected with two different rule sets for the LBG GeoSnake. Our pattern is shown to result in a significant accuracy improvement.