Song, Dezhen, and Yiliang Xu. “A Low False Negative Filter for Detecting Rare Bird Species from Short Video Segments Using a Probable Observation Data Set-Based EKF Method”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 24, no. 1, July 2010, pp. 1619-24, doi:10.1609/aaai.v24i1.7722.