Yu, J., Wong, W.-K. and Kelling, S. 2014. Clustering Species Accumulation Curves to Identify Skill Levels of Citizen Scientists Participating in the eBird Project. Proceedings of the AAAI Conference on Artificial Intelligence. 28, 2 (Jul. 2014), 3017-3023. DOI:https://doi.org/10.1609/aaai.v28i2.19022.