Honglei Xie

Recent Posts

  • February 25, 2017

    Linear regression with ARMA errors

    Recently I’m getting more and more interested in time series prediction, which might be somehow neglected by the machine learning community. However, this topic should have attracted massive attention — who wouldn’t wish to know (even get a bit of...

  • April 19, 2016

    Scraping IMDB top 250 movies in Python

    Web crawling is much easier than it sounds like. I just started to use Python for about 3 weeks and now, with the help of a few modules, I’m able to start to scrape IMDB (static) pages. So … it’s not that hard. Why static pages? You will find it m...

  • April 10, 2016

    Python Simulation Practice -- The Monty Hall Problem

    Recently I’m following the Harvard CS109 online course, which definitely is an awesome one among many data science MOOCs. I came across the very interesting statistics problem, Monty Hall Probelm, in hw0 where we were trying to solve the problem ...

  • January 11, 2016

    Computational Inference in Logistic Regression

    Logistic regression is one of the most commonly used techniques to analyze binarydata. The classical method to estimate the parameters is through Newton-Rapson. Here I’m demonstratingthe alternative method: Bayesian method (MCMC) and make a compar...

  • December 23, 2015

    Linsanity

    Last Saturday night I watched a documentary film called linsanity starred Jeremy Lin who is the model Asian American NBA player.There are too many articles analyzing linsanity phenomenon and I don’t think I’m the right person to talk much about so...