Leetcode medium level question about sorting
Quantitative Research Associate Interview Questions
3,500 quantitative research associate interview questions shared by candidates
Can't share. Mostly about research on stochastic processes and machine learning.
- Asked open ended question “talk about something in maths you are interested in” and then informal conversation from there. - More structured question something like given dataset A and B, how would you approach answering the question “what is current market regime” using said data. (Something along those lines) - After answering above, more about coding/implementation “how would you actually implement what you have just described”
Why are you interested in Citadel and quant position?
in-depth understanding of lasso vs ridge; boosting vs random forest; coding question is not the typical leetcode question, but something related to the stock moving average.
What is the difference between OLS and Ridge regression?
Regress X1 against Y get R2 of 0.1 then regress X2 against Y get R2 of 0.2. What is max R2 of regressing X1 and X2 against Y.
Basic statistics questions, then write code in Python to verify results.
Asked me about my resume, and some questions about linear regression and other ML algorithms.
what is the difference between lasso and ridge
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