Shanshan’s Visit

Shanshan visited Columbus for the first time since her graduation in 2019. I was very happy to see her again in Cockins Hall for so many fond memories and her work that led to many new directions! We had a great time over dinner with my current students.

Shanshan, Zhenbang, me, Xuerong, and Haozhen

A Special Mug

I got a surprise gift from the Department Chair today. My mug design for celebration of the Department’s golden anniversary this year got literally materialized! Thank you, Elly! My design concept is that understanding and learning from variation is the essence of what we do. So, I went with a design that looks like a histogram with each letter of STATISTICS as a bin or category, and to emphasize the 50th anniversary, I stacked the number 5 and 0 for the bars in the histogram.

a mug, thank you card, and a red curly ribbon on the table

JSM in Portland

The JSM in Portland was very enjoyable with many interesting talks, meeting old/new friends, delicious food and fun activities. Haozhen and Zhenbang presented their research at the JSM.

Speakers and chair of the session

Zhenbang presenting his work on case influence in lasso

Summer Reading

I organized a reading group again in the summer session with several students (Zehao, Arkajyoti, and Ziyu). The group had fun reading papers on case influence, model sensitivity, and their relation to predictivity and interpretability and had open discussions at the brand new Koch conference room. See this website for a list of papers.

Summer Reading

During the summer session, I read papers on interesting risk patterns of prediction models in overparameterized regimes with a group of students (Haotian, Xuerong, Arko, Lloyd, Sayoni, and Yumo). The group had readers theater on the last day, which was fun! See this website for more information.

group of students on zoom screen