1. Common sense: participatory urban sensing using a network of handheld air quality monitors;Dutta,2009
2. Creek watch: pairing usefulness and usability for successful citizen science;Kim,2011
3. Parknet: drive-by sensing of road-side parking statistics;Mathur,2010
4. Gbus-route geotracer;Santos,2012
5. Im2gps: Estimating geographic information from a single image;Hays,2008