演講與活動
【專題演講】114/4/24(四) 15:30-16:30 Dr. Fabrizio Ruggeri
活動日期時間：114年4月24日 (星期四) 15:30 – 16:30
演講者：Dr. Fabrizio Ruggeri
演講者單位：Senior Fellow, Institute for Applied Mathematics and Information Technologies, National Research Council of Italy President-Elect, International Statistical Institute
演講主題：Unsupervised Statistical Tools for Anomaly Detection: The Case of Healthcare Frauds
地點：統計學系三樓視聽教室 (62331)
The research is motivated by the increased interest in detecting possible frauds in healthcare systems. We propose some unsupervised statistical tools (Lorenz curve, concentration function, sum of ranks, Gini and Pietra indices) to provide efficient and easy-to-use methods aimed to signal possible anomalous behaviours. A more sophisticated method, based on Bayesian coclustering, is presented as well.
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