Siqi ZhuLDAvis: a deep dive into the popular topic modeling toolDid you happen to stumble across my article on the use of topic modeling in feature engineering? This article takes a closer look at these…5 min read·Mar 6, 2023----
Siqi ZhuUpcycle High Cardinality Features Using Topic ModelingAny thoughts on how you would use the below ‘semi-fixed’ categorical features in a predicative model?5 min read·Sep 22, 2022----
Siqi ZhuAll the nooks and crannies — data scraping for your next data science project: batch download .CSVIn a previous article, I wrote about putting together datasets for a recent data science project on Toronto’s Bike Share usage, and how I…3 min read·May 24, 2022----
Siqi ZhuAll the nooks and crannies — data scraping for your next data science project: import URL JSON data…Other than the common CSV files, JSON, or ‘JavaScript Object Notation’, is another popular data format to store data on the web. It’s…4 min read·May 12, 2022----
Siqi ZhuinCodeXHow I Extract Dashboard KPI Data with SeleniumInteractive dashboards are nothing new to the business intelligence world. Yet as we ride through the many waves of Covid-19 in 2020, these…5 min read·Oct 14, 2021----
Siqi ZhuinCodeXBeyond the basics: here are 3 ways I have used JavaScript in SeleniumBasic WebDriver commands are what most of us starts with, and can pretty much do anything needed to interact with a webpage, such as…4 min read·Jul 27, 2021----
Siqi ZhuYes, you can enter text into a read-only Text boxAnd it doesn't involve ‘open sesame’.3 min read·Jun 10, 2021----
Siqi ZhuRSelenium, will work for freeAre you looking for someone to take over the repetitive web data scraping tasks? Consider RSelenium as your new assistant, for free!4 min read·May 12, 2021----
Siqi ZhuAutomate Two-factor Authentication with RSeleniumMany websites these days require two-factor authentication (2FA) at login, which presents a challenge for automation. I ran into this…4 min read·May 5, 2021----