He is a member of the 2020 cohort and his research interests include semiparametric statistical inference and machine learning. His award-winning paper, titled "Statistical Inference for Four-regime Segmented Regression Models," was published in the top statistical journal, The Annals of Statistics. The paper extends change-point regression and threshold regression models to a multivariate and multi-regional context, developing a comprehensive theory and methodology for segmented regression models. It also makes contributions to asymptotic theory, statistical inference, model diagnostics, and optimization algorithms.

The New Researcher Travel Award from the Institute of Mathematical Statistics (IMS) is designed for young statisticians who are about to receive or have received their Ph.D. within the past five years. The award, which funds attendance at international conferences, is highly competitive, with only about 15 recipients globally each year.

非常有幸能够在光华度过难忘的博士生活，学院为我们提供了世界一流的学术平台，有着完善的培养体系和浓厚的学术氛围。每一位老师都有着非常深厚的学术造诣，为我们打下了坚实的研究基础，我也在与涂云东、宋晓军等诸位老师的交流学习中受益匪浅。

在光华的五年博士研究历程中，导师陈松蹊老师不仅给予了我莫大的帮助和支持，指引方向引领我前行，更以不断开拓新领域的学术热情让我在研究中始终保持勇气和好奇心。在导师的悉心教导和身体力行的感染下，我认识到内驱力和毅力是学术研究中的关键因素，也领悟到统计学的生命力在于实际问题中的应用。同时，光华有很多一路同行的优秀同学们，在探索科研的道路上给予了我很多陪伴和支持。

飞速发展的人工智能时代为统计学提供了非常多的机会和新的挑战，在日后的研究中，我将带着在光华求学期间收获的知识和经验，以更加饱满的热情继续探索研究。

——闫晗

He is a member of the 2021 cohort, and his research interests include probability limit theory, high-dimensional statistical inference, and the statistical foundations of climate change. His award-winning paper, titled "Optimally adaptive test for high-dimensional hypotheses via minimax deficiency," was completed under the guidance of his supervisor, Professor Chen Songxi. In collaboration with other researchers, he proposed a new power-enhanced test that achieves optimal or nearly optimal testing power under various signal sparsity scenarios.
The Hannan Graduate Student Travel Award, named in honor of the renowned statistician James Hannan, is designed to support graduate students pursuing studies in statistics or probability. It provides funding for travel and registration fees to attend conferences organized or co-organized by the Institute of Mathematical Statistics (IMS). Recipients are given the opportunity to present their papers or posters at these conferences. The award is granted to approximately 20 individuals worldwide each year

在光华学习的四年时间里，学院给予了我非常浓厚且专业的科研氛围与科研环境。虞吉海老师对计量方法的巧妙运用，涂云东老师对时间序列的深刻理解，还有徐敏亚老师在课堂上对概率统计方法深入浅出的介绍，都令我印象深刻、获益匪浅。

在学习微观经济学和计量经济学的过程中，同学们在课堂上对各种难题概念反复争论探讨的热心与激情，更是给了我后来在科研过程中解决各种富有挑战性问题的动力与信心。最难忘的是陈松蹊老师在做了很多理论工作的同时，也不忘积极投身于空气质量、流行病学和气候变化等十分具体的实际问题当中，还曾反复告诫我理论研究一定要立足于并投入到实际应用中去。

受到老师们潜移默化的影响，我在推导出一个新的高维假设检验的数理统计性质后，便迫不及待地把该方法应用到了气候变化分析的实际应用场景里，并最终形成了获奖论文的主要内容。希望在将来的研究中，我能牢记各位老师的教诲，努力把在光华学习到的各种知识，转化为对社会的微小贡献。

——丘竞昆