Today at Booth’s PhD math camp, we revisited some foundational concepts in probability theory. Two key topics stood out to me: Frequentist vs. Bayesian Perspectives A crucial distinction lies in what we treat as random: Frequentist: Parameters (e.g., population mean $\mu$) are fixed, and randomness comes from the data. Example: $$ P(X \mid \mu) $$ We ask: Given a true mean $\mu$, how likely is it to observe sample mean $X$?...

The singer announced “the eternal sunshine Tour” almost two weeks ago. Presales launch today 10:00. I was aware of pop music concert’s popularity, yet I didn’t expected it to be such a rush: Queue for getting a ticket in Chicago… The Chicago United Center stadium can holds up to 23500 audience. The TicketMaster sales mechanism works as follows: you join the queue starting 9:30 and the sale goes on live 10:00, where queued consumer are then given a relatively chilled purchase opportunity before their follower join....

Here’s an interesting article from Chicago Booth review. Probably my favourite out of its Fall 2025 issue. One Way to Increase the Supply of Kidneys — Animal organs could save people’s lives, but which patients should participate in trials? Gina Potthoff Kacik | June 2025 Background: The National Kidney Registry estimates that a deceased-donor kidney from a human typically remains viable for 10–15 years after it is transplanted into another person, but no one yet knows exactly how long a xenokidney will last....

The July 2025 Sigecom Exchanges Newsletter has this really interesting article that our advisor reposted in our WeChat group: EconCS in Industry: Skills to Succeed as an Applied Scientist Devanur, Paes Leme and Schrijvers link It applies more to EconCS students from the CS side, but the key points are universal for anyone wishing for industry I guess. Some key takeaways: Exploratory Data Analysis Exploratory Data Analysis is the iterative process of learning properties of the data that you’re working with....

The cello’s range overlaps closely with the human voice. Its size, timbre, and resonance make it one of the most human of instruments — intimate, lyrical, and capable of expressing conversations, inner thoughts, growth, and epiphanies. Here are three pieces where the cello doesn’t just play fancy cadenzas: Awakening Back when I was with the Guangzhou Symphony Youth Orchestra, we performed Duo by composer 赵麟. It was a piece commissioned by our orchestra, and we were lucky to have the composer around during some rehearsals, which made the work feel even more alive....

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Here’s two excellent source about the Jazz of Gershwin and his influence on Ravel: An article, Fascinatin’ rhythm: When Ravel met Gershwin December 14, 2021 Jack Zimmerman (CSO link) While in New York, Ravel went to see Gershwin’s new musical Funny Face and declared himself “enchanted.” He expressed interest in meeting Gershwin and hearing him play the Rhapsody in Blue and other jazz-influenced works. … At a party held in his honor by mezzo-soprano Éva Gauthier, Ravel celebrated his 53rd birthday on March 7, 1928....

This fall, I’m starting a new chapter as a PhD student at the Booth School of Business. I finished my undergrad in Shanghai — another windy city. Coincidence, perhaps, that I end up here in Chicago, as if the wind insists on pushing a bit for the chapters of my life. Chicago has its grand, confident skyline, but Hyde Park — where I now live — feels like a world of its own....

Some fun observations when I was opening up Wi-Fi service at my apartment.

Oftentimes, the most beautiful piece is never the most difficult or the flashiest one. Cantabile. Lyrical. Expressive. Jean-Pierre Rampal plays the flute as if he were singing — every phrase shaped like a breath, every note carrying the weight of a spoken word. Camille Saint-Saëns’ Romance, Op. 37 isn’t a technically demanding piece. The notes are simple, the scales predictable, the fingerings familiar. On paper, it looks almost effortless — something any advanced student could easily sight-read....