Skip to main content
Mathematics
Tom Chen's user avatar
Tom Chen's user avatar
Tom Chen's user avatar
Tom Chen
  • Member for 12 years, 4 months
  • Last seen more than a week ago
Profile Activity

Stats

4,758
reputation
55k
reached
130
answers
30
questions
Communities
View all

About

I'm an assistant professor in biostatistics at Harvard Medical and Harvard School of Public Health.

Academic interests: Stochastic approximation, missing data, design and analysis of clinical trials, mathematical inequalities

Non-academic interests: Whacking fuzzy yellow balls, folding clothes, and finding good deals on electronics

Badges

View all badges
This user doesn’t have any gold badges yet.
15
silver badges
21
bronze badges

Top tags

View all tags
56
Score
53
Posts
33
Posts %
41
Score
29
Posts
18
Posts %
38
Score
21
Posts
13
Posts %
35
Score
15
Posts
9
Posts %
23
Score
19
Posts
12
Posts %
18
Score
19
Posts
12
Posts %

Top posts

View all questions and answers
8
Conditional distribution of subvector of a Dirichlet random variable
Oct 20, 2016
8
A sum of Fibonacci numbers
Feb 4, 2019
7
Looking for a cleaner/quicker way to evaluate the integral of a quadratic
Apr 6, 2022
6
Let $X_1$ and $X_2$ be uniform on $n$-spheres. What is the distribution of $\| X_1+X_2\|$?
Apr 24, 2019
6
For $n \geq 2$, show that $\sum_{r = 1}^{n} r \sqrt{\binom{n}{r}} < \sqrt{2 ^ {n - 1} n ^ 3}$
Mar 29, 2022
6
The upper bound of $\lim \limits_{n\to\infty} \sum \limits_{i=1}^n e^{-i}\sqrt{i}$?
Apr 8, 2019
6
Is this matrix positive semidefinite? $M_{ij} = \sqrt{|x_i+x_j|} - \sqrt{|x_i-x_j|}$ where $x_i$'s are reals
Jul 25, 2021
5
Dice: Rolling at least N successes where number of succeses vary by dice value
Jun 27, 2020
5
Convergence of the sequence $I_n=\int^\infty_n \big(1+\tfrac{x}{n}\big)^n2^{-x}\,dx$
Apr 7, 2022
5
A ridiculously fast way to find fixed points of the logistic function?
Sep 11, 2019

Top network posts

View all network posts
9
Efficient implementation in computing pairwise differences
7
Why is Neyman-Pearson lemma a lemma or is it a theorem?
7
Convolution of two Brownian motions
5
Switching interventions after randomization
5
Removing Shelf for Electrical Panel Clearance