Posts of some technical tips.

Realized Garch model with dynamical conditional correlation

Study of Garch model with realized variance and study the dynamic conditional correlation model on 6 stock stock data.

EM Algorithm for Linear Clusters

Here is an interesting situation occurred to me. In a scatter plot, it is clear that there are two straight lines and each line is contanminated by some nois...

Some FPGA basic element design and Vivado code

I am doing a service task for CERN on a hardware project. I learned something on FPGA and some basic vivado code and glad to share here.

Introduction on how to write an Athena(ATLAS) package for release22

I am writing this post is because I recently met some problem of writing an Athena Algorithm for my research. I am using a simple code to get lepton n-tuples...

Some Properties of Linear Regression

If we regress $X$ on $Y$ and get $\beta$ as the slope and if we regress $Y$ on $X$ and get slope $\beta’$. What is the product of $\beta$ and $\beta’$

Interesting Statsitcal Problems in Interviews

Problem 1 If we have $n$ dice draws with a dice that has $k$ sides. Let $X_i$ to be the random variables that describes the number of times that the dice fac...