Mondal, A. et al. 2015. LoRUS: A Mobile Crowdsourcing System for Efficiently Retrieving the Top-k Relevant Users in a Spatial Window. Proceedings of the AAAI Conference on Human Computation and Crowdsourcing. 3, 1 (Sep. 2015), 24–25. DOI:https://doi.org/10.1609/hcomp.v3i1.13249.