PhD in Economics | Certified in Data Science | Passion in Life | https://zijing0926.github.io/Portfolio/ | https://www.linkedin.com/in/zijingzhu/
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my happy place

Personal Data Science Projects

  • Sentiment Analysis
  • Twitter Analysis
  • Web Scraping
  • Data Science Bootcamp

Data Science Interview Preparation Toolkit

  • Machine Learning Questions:
  • Statistics…


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Photo by MORAN on Unsplash

Data Science, Data Visualization, Programming

my first for-fun data science project


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Photo by Cosiela Borta on Unsplash

part 1: preprocessing text data


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Photo by Martin W. Kirst on Unsplash

Data Science, Education

Discussing the benefits in seven aspects based on my personal experience

The program


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Photo by Markus Winkler on Unsplash

Getting Started

a step-by-step tutorial for one-sample and two-sample mean, proportion statistical inference


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Photo by Elena Mozhvilo on Unsplash

controlling the virus or maintaining economic growth


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Photo by Kelvin Yan on Unsplash

Utilize the universal language — Emoji

Project Background


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Photo by Victor Garcia on Unsplash

Model Interpretability

validate the decision-making process

1. What is a causal relationship?


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Photo by Clem Onojeghuo on Unsplash

Office Hours

Nail the data science interview with confidence, part 4


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Photo by AbsolutVision on Unsplash
  • locate the URL for which you want to scrape data from;
  • Inspect the webpage to identify the “Tags”/“Path”/“Selector”/“Attributes” of the content you want to scrape;
  • Write the code and make sure your code works;
  • Generalize your codes to scrape more webpages, but make sure to not let yourself be blocked. …

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