Posts by Year

2024

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2022

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2021

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2020

The model to flatten the curve

7 minute read

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With the covid-19 pandemic distruping everyday life across the globle, a phrase we hear a lot is to “flatten the curve”. What is the science behind that?

Multi-armed bandit

9 minute read

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Multi armed bandit is such a classic problem, here let’s implement some simple policies from ground up to address this problem.

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2019

The secretary problem

14 minute read

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How to maximize your chance to find the best candidate, apartment, or even soulmate, only if the world can be modeled simply.

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2018

Pivot a Hive table

6 minute read

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There is no built-in pivot function in Hive, but one can still do it with relative ease.

LIME, anyone?

6 minute read

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Why Should I Trust Your black-box model? How about breaking open the black-box model, at least locally.

Book roundup, June 2018

2 minute read

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Armed with seemingly omnipotent technical marvels that are destined to solve all the problems should they arise, there are still questions we need to think c...

Hello World

less than 1 minute read

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Hello World, again!

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2017

Quantum Nondemolition Measurements

4 minute read

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One of the most well-known effects of quantum mechanics is the uncertainty principle. A direct consequence is that it that imposes a fundamental limit on the...

Normal mode

3 minute read

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We are all quite familiar with a simple harmonic oscillator, such as a frictionless pendulum, or a mass-on-a-spring system. Since there is no friction (or en...

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2016

I want to talk about light

3 minute read

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What a poetic opening to your talk! This is what Sir John Pendry did when he gave a talk at the IIN Symposium few months back. He then went to describe light...

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