Yamanaka, S. “Utility of Crowdsourced User Experiments for Measuring the Central Tendency of User Performance to Evaluate Error-Rate Models on GUIs”. Proceedings of the AAAI Conference on Human Computation and Crowdsourcing, vol. 9, no. 1, Oct. 2021, pp. 155-6, doi:10.1609/hcomp.v9i1.18948.