應管理與經濟學院的邀請，美國國立衛生研究院資深研究員、Georgetown University兼職教授、泛華統計協會主席劉愛義（AiYi Liu）來偉德國際官網進行交流訪問，并于2018年6月26日上午在主樓216會議室進行了題為《On the Efficiency of Group Testing and Retesting for Estimating Rare Events》的學術報告，報告會由會計系李慧云教授主持。
AiYi Liu首先介紹了他的研究成果，包括Group Testing及Retest的研究背景、理論基礎、研究結果、實際應用等方面。之后的提問交流環節中，AiYi Liu耐心地解答了老師和同學們提出的問題，與大家進行了深入探討。AiYi Liu與同學們分享了他的研究經驗和心得體會，并就如何在管理、實證會計研究中應用統計知識、如何進行高水平研究及論文寫作，提出了許多寶貴意見，得到了同學們的熱情回應。
整場交流活動內容豐富，在場的研究生收獲頗豐。統計方法作為一種工具被廣泛的用于管理、經濟等眾多領域。AiYi Liu從統計方法的重要性著手，提出了Group Testing及Retest可能在管理中的應用方向，不僅在理論上帶給我們諸多啟發，也對我們的實際研究提供了許多有價值的參考意見。
AiYi Liu教授簡介：
Dr. Aiyi Liu is a senior investigator and current Acting Chief in the Biostatistics and Bioinformatics Branch of the National Institute of Health and Human Development, USA. His research interests in statistical methods development center around sequential methodology and adaptive designs; robust methods for multidimensional outcomes, design, analysis; and methods for semicontinuous outcomes. Dr. Liu is an active member of several professional societies, including the American Statistical Association (ASA) and the International Chinese Statistical Association (ICSA). He is an elected fellow of ASA and is currently the president of ICSA. He is an adjunct professor in department of biostatistics, bioinformatics and biomathematics in Georgetown University. He has published over 160 papers in statistical research and is the recipient of a number of NIH and NICHD merit awards.
