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Leyla Kazemi, Cyrus Shahabi
2012 Proceedings of the 20th International Conference on Advances in Geographic Information Systems - SIGSPATIAL '12  
In this paper, for the first time we introduce a taxonomy for spatial crowdsourcing.  ...  Finally, our experimental evaluations on both real-world and synthetic data verify the applicability of our proposed approaches and compare them by measuring both the number of assigned tasks and the travel  ...  Redondo Beach, CA, USA Copyright (c) 2012 ACM ISBN 978-1-4503-1691-0/12/11 ...$15.00. mobile smart phone users, the phone's hardware and software features, and the broadband bandwidth.  ... 
doi:10.1145/2424321.2424346 dblp:conf/gis/KazemiS12 fatcat:qyvbutbpjnd77eq4hp44iejjci

Matching geo-spatial information by qualitative spatial relations

Rami Al-Salman, Frank Dylla, Paolo Fogliaroni
2012 Proceedings of the 1st ACM SIGSPATIAL International Workshop on Crowdsourced and Volunteered Geographic Information - GEOCROWD '12  
Current Geographic Information Systems (GISs) do not adequately allow users to query spatial databases by means of qualitative terms like left, near ,or above.  ...  Hence, we propose a matching framework that enables users to formulate configurations in a spatial query in an intuitive and qualitative manner.  ...  For example, indexing methods like R*Tree [1] could be very useful. 12, November 6, 2012. Redondo Beach, CA, USA Copyright (c) 2012 ACM ISBN 978-1-4503-1694-1/12/11 ...$15.00.  ... 
doi:10.1145/2442952.2442960 dblp:conf/gis/Al-SalmanDF12 fatcat:lta2bqe6knaqrn2pxjkkrbslnq

How people describe their place: Approaches to interpreting and formalizing place descriptions

Daniela Richter
This cumulative thesis deals with human place descriptions and their interpretation. In particular, it poses four different research questions: What are dominant types of place descriptions?  ...  Tell Us Where was implemented and maintained by Hairuo Xie. We thank Tim Baldwin, University of Melbourne and Lawrence Cavedon, RMIT University, for critical discussions.  ...  Acknowledgments The authors acknowledge support by the Australian Research Council (LP100200199), and wish to thank anonymous reviewers for comments that helped to improve the chapter.  ... 
doi:10.5445/ir/1000037462 fatcat:xqx6oxgbszd7riungwiofutkg4