Harry Zhang
@HarryZhangOGPhD student @MIT Quant Researcher. Prev. @berkeley_ai
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I recently updated my Deep RL notes (written when taking CS294-112 with Prof. Levine @svlevine) and got over 570 stars (and counting) on GitHub. Feel free to drop a comment or look for typos. Hope this doc is useful for y’all. github.com/harryzhangOG/D…
The JS vs Millenium saga continues… Despite the whole world now trading Indian options , trying to mimic Jane Street, they are still making gazillions!
The fun continues, Jane Street got a temporary loophole to not have to disclose all details to everyone.
at some point, volatility is going to spike a lot. and lots of you are going to get rekt cos you didn't have a good plan for what to do, or you didn't stick to it. i can't have that on my conscience - i got enough already - so pls read this and make a plan.
s&p closed at an all time high the day before 4th of july
RIP to the man that solved the markets, Jim Simons 8 quotes from the legend:
It is with great sadness that the Simons Foundation announces the death of its co-founder and chair emeritus, James Harris Simons. Jim was an award-winning mathematician, a legendary investor and a generous philanthropist. simonsfoundation.org/2024/05/10/sim…
Amazing review verbatim - I'm speechless. The computer vision community should be ashamed that this is the state of our peer review system "Strengths: A good analysis is performed and some conclusion are been drawn. "Weaknesses: These more of an incremenatal work no detailed…
"Last week, one of those programmers may have saved the #internet from huge trouble. His name is Andres Freund. He’s a 38-year-old software engineer who lives in San Francisco & works at Microsoft." nytimes.com/2024/04/03/tec… #cybersecurity
"Why don't we have better robots yet?": just posted on the @TEDTalks home page under Newest Talks (3rd row from the top) with links to @PieRobotics and @Forbes article on art by Ben Wolff @creativecellist @Berkeley_AI @UCBerkeley @Cal_Engineer TED.com
I'm releasing all the lectures and notes for an introductory course on Statistical Detection and Estimation I used to teach. The core material hasn't changed - it was an EE course, but it's as relevant today to AI researchers as ever before. Hope you find it useful. Covers: *…
GMKF: Generalized Moment Kalman Filter for Polynomial Systems with Arbitrary Noise Sangli Teng, Harry Zhang, David Jin, @Ashkan_Jasour, @GhaffariMaani, @lucacarlone1 tl;dr: batch setup->PoP+moment relaxations; filtering setup->PoP+moment relaxations arxiv.org/pdf/2403.04712…
Where was CVXPortfolio > 1.0 when I was doing my PhD and had to do debugging myself? github.com/cvxgrp/cvxport…
Unpopular opinion: Causality is **not relevant** in the majority of #quantfinance modeling applications! “Successful prediction does not require correct causal identification.” Causal relationships are important if you want to **intervene** in a system. Quant traders are not…
new post dropped: All my homies hate LASSO (it's meant to be free so everyone who RT will get access 😃) 🔮how good is LASSO at recovering sparsity? 💡 lesson from a macro HF PM in building +150 forecasting models 🏰 (lack of) invariance of regularisation featuring stolen…
SQL for data scientists in 100 queries. This is really good imo. gvwilson.github.io/sql-tutorial/
it is important to have realistic expectations. you'll go mad trying to control things you can't control. you want something nice and positively convex, negatively dependent on global risk. and you want it to make money? well, wait in line i guess.
i think most people would do better if they refrained from taking positions with long term negative expectation. just don’t short equity or bond indexes. your expectation if you’re wrong is quite negative. and you’re often wrong.
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